Sample records for trinity river authority

  1. The economic value of Trinity River water

    USGS Publications Warehouse

    Douglas, A.J.; Taylor, J.G.

    1999-01-01

    The Trinity River, largest tributary of the Klamath River, has its head-waters in the Trinity Alps of north-central California. After the construction of Trinity Dam in 1963, 90% of the Trinity River flow at Lewiston was moved to the Sacramento River via the Clear Creek Tunnel, a manmade conduit. Hydropower is produced at four installations along the route of Trinity River water that is diverted to the Sacramento River, and power production at three of these installations would diminish if no Trinity River water were diverted to the Sacramento River. After Trinity River water reaches the Sacramento River, it flows toward the Sacramento-San Joaquin Delta and San Francisco Bay. Trinity River water is pumped via Bureau of Reclamation canals and pumps to the northern San Joaquin Valley, where it is used for irrigated agriculture. The social cost of putting more water down the Trinity River is the sum of the value of the foregone consumer surplus from hydropower production as well as the value of the foregone irrigation water. Sharply diminished instream flows have also severely affected the size and robustness of Trinity River salmon, steelhead, shad and sturgeon runs. Survey data were used to estimate the non-market benefits of augmenting Trinity River instream flows by letting more water flow down the Trinity and moving less water to the Sacramento River. Preservation benefits for Trinity River instream flows and fish runs are $803 million per annum for the scenario that returns the most water down the Trinity River, a value that greatly exceeds the social cost estimate.The Trinity River, largest tributary of the Klamath River, has its headwaters in the Trinity Alps of north-central California. After the construction of Trinity Dam in 1963, 90% of the Trinity River flow at Lewiston was moved to the Sacramento River via the Clear Creek Tunnel, a manmade conduit. Hydropower is produced at four installations along the route of Trinity River water that is diverted to the Sacramento River, and power production at three of these installations would diminish if no Trinity River water were diverted to the Sacramento River. After Trinity River water reaches the Sacramento River, it flows toward the Sacramento-San Joaquin Delta and San Francisco Bay. Trinity River water is pumped via Bureau of Reclamation canals and pumps to the northern San Joaquin Valley, where it is used for irrigated agriculture. The social cost of putting more water down the Trinity River is the sum of the value of the foregone consumer surplus from hydropower production as well as the value of the foregone irrigation water. Sharply diminished instream flows have also severely affected the size and robustness of Trinity River salmon, steelhead, shad and sturgeon runs. Survey data were used to estimate the non-market benefits of augmenting Trinity River instream flows by letting more water flow down the Trinity and moving less water to the Sacramento River. Preservation benefits for Trinity River instream flows and fish runs are $803 million per annum for the scenario that returns the most water down the Trinity River, a value that greatly exceeds the social cost estimate.

  2. Riverine based eco-tourism: Trinity River non-market benefits estimates

    USGS Publications Warehouse

    Douglas, A.J.; Taylor, J.G.

    1998-01-01

    California's Central Valley Project (CVP) was approved by voters in a statewide referendum in 1933. CVP referendum approval initiated funding for construction of important water development projects that had far reaching effects on regional water supplies. The construction of Trinity Dam in 1963 and the subsequent transbasin diversion of Trinity River flow was one of several CVP projects that had noteworthy adverse environmental and regional economic impacts. The Trinity River is the largest tributary of the Klamath River, and has its headwaters in the Trinity Alps of north-central California. After the construction of Trinity Dam in 1963, 90% of the Trinity River flow at Lewiston was moved to the Sacramento River via the Clear Creek Tunnel. Before 1963, the Trinity River was a major recreation resource of Northern California. The loss of streamflow has had a marked adverse impact on Trinity River-related recreation activities and the size and robustness of Trinity River salmon, steelhead, shad, and sturgeon runs. Trinity River water produces hydropower during its transit via Bureau of Reclamation canals and pumps to the northern San Joaquin Valley, where it is used for irrigated agriculture. The benefits provided by Trinity River instream flow-related environmental amenities were estimated with the travel cost method (TCM). Trinity River non-market benefits are about $406 million per annum, while the social cost of sending water down the Trinity River ranges from $17 to $42 million per annum, depending on the exact flow. We also discuss the relative magnitude of Trinity River survey data contingent value method (CVM) benefits estimates.

  3. Impact. The southwest end is down, as the buckled middle ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Impact. The southwest end is down, as the buckled middle section splashes into the river. View is to southeast from confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  4. Water-quality assessment of the Trinity River Basin, Texas - Review and analysis of available pesticide information, 1968-91

    USGS Publications Warehouse

    Ulery, R.L.; Brown, M.F.

    1995-01-01

    Review of all available data showed that pesticides were detected to a substantial degree in various sample media over the time period covered by this report. The authors were able to locate little pesticide-sample data for ground water or for tributary streams because sampling efforts historically have been concentrated on the mainstem Trinity River.

  5. Dust trailing from the top chord, the bridge falls toward ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Dust trailing from the top chord, the bridge falls toward the river, as the southwest end (right) falls first. View southeast from confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  6. LOOKING EASTSOUTHEAST. Showing downstream side of completed bridge, from confluence ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    LOOKING EAST-SOUTHEAST. Showing downstream side of completed bridge, from confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  7. COMPLETED STRUCTURE. View is eastsoutheast of downstream side of bridge, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    COMPLETED STRUCTURE. View is east-southeast of downstream side of bridge, from beyond confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  8. 7. View to southeast. View of downstream side of bridge ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. View to southeast. View of downstream side of bridge from confluence of Trinity and South Fork Trinity Rivers. (90mm Lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  9. Environmental and Cultural Resources within the Trinity River Basin

    DTIC Science & Technology

    1971-01-01

    Berimnopedia - Trinity River, Tarrant County (66) Hiorecyatia - Trinity River, Tarrant County (66) Oseillatoria - Trinity River, Tarrant County (66) Spirulina ...73, 74) have reported additional algae and fungi from North Texas waters. These species are listed below. Anabaena Anacystic Arthrospira Chroococcus

  10. STEEL ERECTION. View of downstream of bridge, looking southeast from ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    STEEL ERECTION. View of downstream of bridge, looking southeast from confluence of Trinity and South Fork Trinity rivers. The old suspension bridge is in background - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  11. Aftermath. The remains of the southwest end of the bridge ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Aftermath. The remains of the southwest end of the bridge lie next to the southwest pier. View is south-southeast from confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  12. With water still in midflight, the northeast end of the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    With water still in mid-flight, the northeast end of the bridge (left) nears total collapse. View is to southeast from confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  13. With deck removed and critical members severed, the bridge begins ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    With deck removed and critical members severed, the bridge begins to succumb to tractors, pulling cables attached to its downstream side. View is to the southeast from confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  14. Spray and dust hang in the air, as the demolition ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Spray and dust hang in the air, as the demolition is completed. Only the southeast pier remains standing at right. View is to southeast from confluence of Trinity and South Fork Trinity Rivers - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  15. 12. View to southwest. View along centerline from Trinity County ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    12. View to southwest. View along centerline from Trinity County side of bridge. (90mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  16. PLANT AND PIER #2 EXCAVATION. View is to the northeast, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    PLANT AND PIER #2 EXCAVATION. View is to the northeast, looking from Humboldt County side of river toward Trinity County side - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  17. OLD SUSPENSION BRIDGE. This view appears to be looking southeast, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    OLD SUSPENSION BRIDGE. This view appears to be looking southeast, at the downstream side of the suspension bridge, which was replaced by the South Fork Trinity River Bridge - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  18. POURING FOOTING OF PIER #1. View is to the southwest, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    POURING FOOTING OF PIER #1. View is to the southwest, looking from Pier 2 in Trinity County toward Pier 1 in Humboldt County - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  19. Identifying water-quality trends in the Trinity River, Texas, USA, 1969-1992, using sediment cores from Lake Livingston

    USGS Publications Warehouse

    Van Metre, P.C.; Callender, E.

    1996-01-01

    Chemical analyses were done on cores of bottom sediment from three locations in Lake Livingston, a reservoir on the Trinity River in east Texas to identify trends in water quality in the Trinity River using the chemical record preserved in bottom sediments trapped by the reservoir. Sediment cores spanned the period from 1969, when the reservoir was impounded, to 1992, when the cores were collected. Chemical concentrations in reservoir sediment samples were compared to concentrations for 14 streambed sediment samples from the Trinity River Basin and to reported concentrations for soils in the eastern United States and shale. These comparisons indicate that sediments deposited in Lake Livingston are representative of the environmental setting of Lake Livingston within the Trinity River Basin. Vertical changes in concentrations within sediment cores indicate temporal trends of decreasing concentrations of lead, sodium, barium, and total DDT (DDT plus its metabolites DDD and DDE) in the Trinity River. Possible increasing temporal trends are indicated for chlordane and dieldrin. Each sediment-derived trend is related to trends in water quality in the Trinity River or known changes in environmental factors in its drainage basin or both.

  20. Estimated effects on water quality of Lake Houston from interbasin transfer of water from the Trinity River, Texas

    USGS Publications Warehouse

    Liscum, Fred; East, Jeffery W.

    2000-01-01

    The City of Houston is considering the transfer of water from the Trinity River to Lake Houston (on the San Jacinto River) to alleviate concerns about adequate water supplies for future water demands. The U.S. Geological Survey, in cooperation with the City of Houston, conducted a study to estimate the effects on the water quality of Lake Houston from the transfer of Trinity River water. A water-quality model, CE–QUAL–W2, was used to simulate six water-quality properties and constituents for scenarios of interbasin transfer of Trinity River water. Three scenarios involved the transferred Trinity River water augmenting streamflow in the East Fork of Lake Houston, and three scenarios involved the transferred water replacing streamflow from the West Fork of the San Jacinto River.The estimated effects on Lake Houston were determined by comparing volume-weighted daily mean water temperature, phosphorus, ammonia nitrogen, nitrite plus nitrate nitrogen, algal biomass, and dissolved oxygen simulated for each of the transfer scenarios to simulations for a base dataset. The effects of the interbasin transfer on Lake Houston do not appear to be detrimental to water temperature, ammonia nitrogen, or dissolved oxygen. Phosphorus and nitrite plus nitrate nitrogen showed fairly large changes when Trinity River water was transferred to replace West Fork San Jacinto River streamflow. Algal biomass showed large decreases when Trinity River water was transferred to augment East Fork Lake Houston streamflow and large increases when Trinity River water was transferred to replace West Fork San Jacinto River streamflow. Regardless of the scenario simulated, the model indicated that light was the limiting factor for algal biomass growth.

  1. LOOKING EAST. View is to the northeast along centerline of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    LOOKING EAST. View is to the northeast along centerline of deck, looking from Humboldt County toward Trinity County. The old suspension bridge is still in place at right - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  2. STARTING EXCAVATION PIER 2. This view is roughly northeast, with ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    STARTING EXCAVATION PIER 2. This view is roughly northeast, with Pier 2 on the Trinity County end of the bridge. The old suspension bridge, at upper right, was upstream of new bridge - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  3. Summary of Migration and Survival Data from Radio-Tagged Juvenile Coho Salmon in the Trinity River, Northern California, 2008

    USGS Publications Warehouse

    Beeman, John W.; Hansel, Hal; Juhnke, Steve; Stutzer, Greg

    2009-01-01

    The survival of hatchery-origin juvenile coho salmon from the Trinity River Hatchery was estimated as they migrated seaward through the Trinity and Klamath Rivers. The purpose of the study was to collect data for comparison to a similar study in the Klamath River and provide data to the Trinity River Restoration Program. A total of 200 fish fitted with radio transmitters were released into the Trinity River near the hatchery (river kilometer 252 from the mouth of the Klamath River) biweekly from March 19 to May 28, 2008. Fish from the earliest release groups took longer to pass the first detection site 10 kilometers downstream of the hatchery than fish from the later release groups, but travel times between subsequent sites were often similar among the release groups. The travel times of individuals through the 239 kilometer study area ranged from 15.5 to 84.6 days with a median of 43.3 days. The data and models did not support differences in survival among release groups, but did support differences among river reaches. The probability of survival in the first 53 kilometers was lower than in the reaches farther downstream, which is similar to trends in juvenile coho salmon in the Klamath River. The lowest estimated survival in this study was in the first 10 kilometers from release in the Trinity River (0.676 SE 0.036) and the highest estimated survival was in the final 20 kilometer reach in the Klamath River (0.987 SE 0.013). Estimated survivals of radio-tagged juvenile coho salmon from release to Klamath River kilometer 33 were 0.639 per 100 kilometers for Trinity River fish and 0.721 per 100 kilometers for Klamath River fish.

  4. CANVAS FINISH TO REMOVE FLOAT MARKS. View is to the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    CANVAS FINISH TO REMOVE FLOAT MARKS. View is to the northwest of deck finishing operations - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  5. 14. View to southwest. View through truss along centerline from ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. View to southwest. View through truss along centerline from below deck. (65mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  6. 20. View to southeast. Aerial view of bridge in setting; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. View to southeast. Aerial view of bridge in setting; downstream side. (135mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  7. COUNTERWEIGHT FOOTINGS ON EAST SIDE. View is to the north ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    COUNTERWEIGHT FOOTINGS ON EAST SIDE. View is to the north from the old suspension bridge - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  8. 13. View to northeast. View along centerline from Humboldt County ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. View to northeast. View along centerline from Humboldt County side of bridge. (90mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  9. JIGGER STICK USED IN ERECTION. Shown on highline, direction of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    JIGGER STICK USED IN ERECTION. Shown on highline, direction of view is probably to the north - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  10. 11. View to southeast. More distant overview of bridge in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. View to southeast. More distant overview of bridge in setting; downstream side. (135mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  11. PIER 2. View is to the northeast, looking from Pier ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    PIER 2. View is to the northeast, looking from Pier 1 toward Pier 2 from beneath completed bridge - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  12. 3. View to southwest. Oblique view of downstream side of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. View to southwest. Oblique view of downstream side of bridge and west pier. (135mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  13. 2. View to east. Oblique view of downstream side of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. View to east. Oblique view of downstream side of bridge and east pier. (135mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  14. 9. View to northeast. Oblique view of upstream side of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. View to northeast. Oblique view of upstream side of bridge from approximately deck level. (90mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  15. PLACING TOP CHORD CENTER PANEL. View to the northwest from ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    PLACING TOP CHORD CENTER PANEL. View to the northwest from the old suspension bridge. Chord members in place - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  16. 17. View to west. Detail, connection point L2 (see plans), ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. View to west. Detail, connection point L2 (see plans), from below deck. (135mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  17. 15. View to northeast. View along centerline from below deck; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. View to northeast. View along centerline from below deck; detail of bent and floor beams. (65mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  18. STEEL ERECTION. View of upstream side of bridge, looking north ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    STEEL ERECTION. View of upstream side of bridge, looking north from the old suspension bridge at unjoined cantilever arms - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  19. 16. View to southsouthwest. Detail, connection point U1 (see plans), ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. View to south-southwest. Detail, connection point U1 (see plans), from below deck. (135mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  20. LOWER CHORD ERECTION. View is to northnorthwest from the old ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    LOWER CHORD ERECTION. View is to north-northwest from the old suspension bridge. Chord members suspended from jigger stick - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  1. STEEL ERECTION. View is to the north from the old ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    STEEL ERECTION. View is to the north from the old suspension bridge, looking at upstream side of new bridge - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  2. 4. View to westsouthwest. Oblique view of upstream side of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. View to west-southwest. Oblique view of upstream side of bridge from approximately deck level. (90mm lens) - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  3. PLACING DIAGONALS IN CENTER PANEL. View is northnorthwest from the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    PLACING DIAGONALS IN CENTER PANEL. View is north-northwest from the old suspension bridge, looking at upstream side of new bridge - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  4. MOVING SHAFT FORMS FROM PIER #2 TO PIER #1. View ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    MOVING SHAFT FORMS FROM PIER #2 TO PIER #1. View is to the northeast, with shaft forms being moved by highline - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  5. COUNTERWEIGHT ON WEST SIDE. View is to the northwest of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    COUNTERWEIGHT ON WEST SIDE. View is to the northwest of counterweight on Humboldt County end of bridge, probably taken from the old suspension bridge - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  6. PLACING TOP CHORD CENTER PANEL. View is to the northwest ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    PLACING TOP CHORD CENTER PANEL. View is to the northwest from the old suspension bridge. Chord members being moved into place by jigger stick and highline - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  7. Bird monitoring as an aid to riparian restoration: Findings from the Trinity River in northwestern California

    Treesearch

    C. Klamath Bird Observatory and USFS Pacific Southwest Research Station

    2013-01-01

    The Trinity River Restoration Program began in 2000 with the goal of restoring the Trinity River's salmon and steelhead fisheries, which were severely degraded during the last half-century as a result of dams, water diversions under the Central Valley Project, and land-use practices such as gold mining. The restoration program, as outlined in the U.S. Department...

  8. Assessment of juvenile coho salmon movement and behavior in relation to rehabilitation efforts in the Trinity River, California, using PIT tags and radiotelemetry

    USGS Publications Warehouse

    Chase, Robert; Hemphill, Nina; Beeman, John; Juhnke, Steve; Hannon, John; Jenkins, Amy M.

    2013-01-01

    Coho salmon (Oncorhynchus kisutch) of the Southern Oregon/Northern California Coast (SONCC) Evolutionarily Significant Unit (ESU) is federally listed as a threatened species. The Trinity River Restoration Program (TRRP) is rehabilitating the Trinity River to restore coho salmon (coho) and other salmonid populations. In order to evaluate the program’s actions, several studies of movements and behavior of coho in the Trinity River were conducted from 2006 to 2009, including snorkel surveys and mark-recapture techniques based on Passive Integrated Transponder (PIT) tags, elastomer tags, and radio transmitters. Catch, recapture, and condition of natural sub-yearlings, along with site fidelity and emigration of hatchery-reared yearlings in rehabilitated and reference habitats, were studied. Location was important because coho were absent from the lower controlled and rehabilitated sites most of the time. However, rehabilitation did not have a significant effect on natural coho salmon at the site level. Apparent survival of radio-tagged, hatchery-reared yearling coho released downstream from Lewiston Dam was much lower in the first 10 km downstream from the release site than in other areas between Lewiston Dam and the Klamath River estuary. Estimated survival of yearling hatchery coho salmon per 100 km down to Blake’s Riffle was estimated at 64 % over the distance of the 239 km study area. Migration primarily occurred at night in the upper Trinity River; however, as yearlings moved through the lower Trinity River towards the Klamath River, estuary nocturnal migration became less. Apparent survival was generally lowest in areas upstream from the North Fork of the Trinity River.

  9. Diversifying natural resources value measurements: The Trinity River study

    USGS Publications Warehouse

    Taylor, J.G.; Douglas, A.J.

    1999-01-01

    An interdisciplinary team set out to establish the economic and social values of the Trinity River in northern California. This information was intended to support the Secretary of the Interior's decision on allocation of Trinity River flows. This team set out to measure the values of Trinity River flows, fishery resources, and recreation amenities in several different ways. A survey was mailed to users of the Trinity River. This single instrument included economic measures (willingness-to-pay and costs incurred in visiting) and social-psychological measures (importance, satisfaction, and water allocation preferences). A closely related survey measured several of these same values among west coast regional households. The results of these surveys were compiled, and the measured economic and social values were compared. We found that integrating economic and social value information provides a greater depth of understanding of the resource's value. In addition, this integration provides a more in-depth understanding through the quantitative and qualitative results that emerge.

  10. Water-quality assessment of the Trinity River Basin, Texas - Nutrients in two coastal prairie streams draining agricultural areas, 1994-95

    USGS Publications Warehouse

    Land, Larry F.

    1996-01-01

    In 1991, the U.S. Geological Survey (USGS) began nationwide implementation of the National Water-Quality Assessment (NAWQA) Program. Long-term goals of NAWQA are to describe the status of and trends in the quality of a large, representative part of the Nation?s surface- and ground-water resources and to provide a sound, scientific understanding of the primary natural and human factors affecting the quality of these resources (Leahy and others, 1990). The Trinity River Basin in east-central Texas (fig. 1) was among the first 20 hydrologic areas, called study units, to be assessed by this program. The first intensive data-collection phase for the Trinity River Basin NAWQA began in March 1993 and ended in September 1995. Streams in the Trinity River Basin were assessed by sampling water, bed sediment, and tissue of biota and characterizing the aquatic communities and their habitat. Aquifers were assessed by sampling water from wells. The coastal prairie is a small part of the Trinity River Basin, but it is environmentally important because of its proximity to Galveston Bay and the extensive use of agricultural chemicals on many irrigated farms. Galveston Bay (fig. 1) was selected by Congress as an estuary of national significance and was included on a priority list for the National Estuary Program. The Trinity River is especially important because its watershed dominates the total Galveston Bay drainage area and because its flow contributes substantial amounts of freshwater and water-quality constituents to the bay. Historically, measurements of the quantity and quality of water entering Galveston Bay from the Trinity River Basin have been made using data from a station about 113 kilometers (70 miles) upstream from Trinity Bay, an inlet bay to Galveston Bay. With a focused objective of providing additional water-quality information in the intervening coastal prairie area and an overall objective of improving the understanding of the relations between farming practices and stream quality in the Trinity River Basin, a special study was conducted. This report provides a description of the occurrence and concentrations of nutrients in two streams in this intervening area. An earlier report by Brown (1996) describes the occurrence and concentrations of pesticides in these two streams. An overall analysis of nutrient data collected during 1974?91 in the Trinity River Basin is given by Van Metre and Reutter (1995).

  11. 76 FR 70751 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-15

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  12. 76 FR 52345 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-22

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  13. 75 FR 17158 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-05

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  14. 76 FR 14044 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-15

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  15. 75 FR 70947 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-19

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  16. 76 FR 23621 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-27

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  17. 75 FR 10501 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-08

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  18. 76 FR 34248 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-13

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  19. 75 FR 51284 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-19

    ...] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California) restoration...

  20. Occurrence and distribution of fecal indicator bacteria, and physical and chemical indicators of water quality in streams receiving discharge from Dallas/Fort Worth International Airport and vicinity, North-Central Texas, 2008

    USGS Publications Warehouse

    Harwell, Glenn R.; Mobley, Craig A.

    2009-01-01

    This report, done by the U.S. Geological Survey in cooperation with Dallas/Fort Worth International (DFW) Airport in 2008, describes the occurrence and distribution of fecal indicator bacteria (fecal coliform and Escherichia [E.] coli), and the physical and chemical indicators of water quality (relative to Texas Surface Water Quality Standards), in streams receiving discharge from DFW Airport and vicinity. At sampling sites in the lower West Fork Trinity River watershed during low-flow conditions, geometric mean E. coli counts for five of the eight West Fork Trinity River watershed sampling sites exceeded the Texas Commission on Environmental Quality E. coli criterion, thus not fully supporting contact recreation. Two of the five sites with geometric means that exceeded the contact recreation criterion are airport discharge sites, which here means that the major fraction of discharge at those sites is from DFW Airport. At sampling sites in the Elm Fork Trinity River watershed during low-flow conditions, geometric mean E. coli counts exceeded the geometric mean contact recreation criterion for seven (four airport, three non-airport) of 13 sampling sites. Under low-flow conditions in the lower West Fork Trinity River watershed, E. coli counts for airport discharge sites were significantly different from (lower than) E. coli counts for non-airport sites. Under low-flow conditions in the Elm Fork Trinity River watershed, there was no significant difference between E. coli counts for airport sites and non-airport sites. During stormflow conditions, fecal indicator bacteria counts at the most downstream (integrator) sites in each watershed were considerably higher than counts at those two sites during low-flow conditions. When stormflow sample counts are included with low-flow sample counts to compute a geometric mean for each site, classification changes from fully supporting to not fully supporting contact recreation on the basis of the geometric mean contact recreation criterion. All water temperature measurements at sampling sites in the lower West Fork Trinity River watershed were less than the maximum criterion for water temperature for the lower West Fork Trinity segment. Of the measurements at sampling sites in the Elm Fork Trinity River watershed, 95 percent were less than the maximum criterion for water temperature for the Elm Fork Trinity River segment. All dissolved oxygen concentrations were greater than the minimum criterion for stream segments classified as exceptional aquatic life use. Nearly all pH measurements were within the pH criterion range for the classified segments in both watersheds, except for those at one airport site. For sampling sites in the lower West Fork Trinity River watershed, all annual average dissolved solids concentrations were less than the maximum criterion for the lower West Fork Trinity segment. For sampling sites in the Elm Fork Trinity River, nine of the 13 sites (six airport, three non-airport) had annual averages that exceeded the maximum criterion for that segment. For ammonia, 23 samples from 12 different sites had concentrations that exceeded the screening level for ammonia. Of these 12 sites, only one non-airport site had more than the required number of exceedances to indicate a screening level concern. Stormflow total suspended solids concentrations were significantly higher than low-flow concentrations at the two integrator sites. For sampling sites in the lower West Fork Trinity River watershed, all annual average chloride concentrations were less than the maximum annual average chloride concentration criterion for that segment. For the 13 sampling sites in the Elm Fork Trinity River watershed, one non-airport site had an annual average concentration that exceeded the maximum annual average chloride concentration criterion for that segment.

  1. Floods in south-central Oklahoma and north-central Texas, October 1981

    USGS Publications Warehouse

    Buckner, Harold D.; Kurklin, Joanne K.

    1984-01-01

    Substantial reductions in peak stages and discharges on the West Fork Trinity River downstream from Eagle Mountain Reservoir were attained as a result of reservoir storage. All floodwater on the Elm Fork Trinity River was contained by reservoir storage thus preventing a potentially devastating flood downstream on the Trinity River. Maximum stages and discharges and/or contents were recorded during and after this major flood at 83 gaging stations, crest-stage stations, reservoir stations, and a miscellaneous site.

  2. Effects of water temperature on breeding phenology, growth and timing of metamorphosis of foothill yellow-legged frogs (Rana boylii) on the mainstem and selected tributaries of California's Trinity River - 2004-2009.

    Treesearch

    Clara Wheeler; James Bettaso; Donald Ashton; Hartwell Welsh

    2013-01-01

    The cold temperatures maintained in the Trinity River are beneficial to fish but may be problematic for foothill yellow-legged frogs. We examined the timing of breeding, reproductive output, and growth and development of tadpoles for populations of foothill yellow-legged frogs on the mainstem and six tributaries of the Trinity River. On the colder mainstem, onset of...

  3. 18. View to southwest. Detail, bearing shoe, upstream side of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. View to southwest. Detail, bearing shoe, upstream side of east pier. Copy negative made from 35mm color transparency made with with 135mm lens by John Snyder, due to lack of sufficiently long lens for 4x5 camera. - South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

  4. Use of watershed factors to predict consumer surfactant risk, water quality, and habitat quality in the upper Trinity River, Texas.

    PubMed

    Atkinson, S F; Johnson, D R; Venables, B J; Slye, J L; Kennedy, J R; Dyer, S D; Price, B B; Ciarlo, M; Stanton, K; Sanderson, H; Nielsen, A

    2009-06-15

    Surfactants are high production volume chemicals that are used in a wide assortment of "down-the-drain" consumer products. Wastewater treatment plants (WWTPs) generally remove 85 to more than 99% of all surfactants from influents, but residual concentrations are discharged into receiving waters via wastewater treatment plant effluents. The Trinity River that flows through the Dallas-Fort Worth metropolitan area, Texas, is an ideal study site for surfactants due to the high ratio of wastewater treatment plant effluent to river flow (>95%) during late summer months, providing an interesting scenario for surfactant loading into the environment. The objective of this project was to determine whether surfactant concentrations, expressed as toxic units, in-stream water quality, and aquatic habitat in the upper Trinity River could be predicted based on easily accessible watershed characteristics. Surface water and pore water samples were collected in late summer 2005 at 11 sites on the Trinity River in and around the Dallas-Fort Worth metropolitan area. Effluents of 4 major waste water treatment plants that discharge effluents into the Trinity River were also sampled. General chemistries and individual surfactant concentrations were determined, and total surfactant toxic units were calculated. GIS models of geospatial, anthropogenic factors (e.g., population density) and natural factors (e.g., soil organic matter) were collected and analyzed according to subwatersheds. Multiple regression analyses using the stepwise maximum R(2) improvement method were performed to develop prediction models of surfactant risk, water quality, and aquatic habitat (dependent variables) using the geospatial parameters (independent variables) that characterized the upper Trinity River watershed. We show that GIS modeling has the potential to be a reliable and inexpensive method of predicting water and habitat quality in the upper Trinity River watershed and perhaps other highly urbanized watersheds in semi-arid regions.

  5. 77 FR 50155 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ...-FF08EACT00] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California...

  6. 77 FR 45370 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ...-FF08EACT00] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California...

  7. 77 FR 30314 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-22

    ...-FF08EACT00] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California...

  8. 77 FR 10766 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ...-FF08EACT00] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California...

  9. 77 FR 74203 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-13

    ...-FF08EACT00] Trinity Adaptive Management Working Group AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of meeting. SUMMARY: The Trinity Adaptive Management Working Group (TAMWG) affords stakeholders the opportunity to give policy, management, and technical input concerning Trinity River (California...

  10. Sr-Nd isotopes constrain on the deposit history of the basins in the Gulf of Mexico

    NASA Astrophysics Data System (ADS)

    Li, Y.; Jiang, S.

    2015-12-01

    The Brazos-Trinity Basin IV and Ursa Basin are situated on the northern slope of the Gulf of Mexico. The Ursa basin lies in the center of late Pleistocene Mississippi River deposition, received the sediment deposition during Marine Isotope Stage (MIS) 2- 4. The Brazos-Trinity Basin IV belongs to a part of the Brazos-Trinity fan, it recorded the turbidite deposition and hemiplegic deposition during MIS1- 5. The Sr and Nd isotopic composition of the detrital composition of the sediment in both basins indicates the change of the sediment provenance during the basin-filled process. In the Ursa basin, The difference of 87Sr/86Sr ratio and ɛNd of the detrital component between MIS1,2 (87Sr/86Sr ~ 0.7219 - 0.7321, ɛNd ~ -12 - -13.4) and MIS3,4(87Sr/86Sr ~ 0.7310 - 0.7354, ɛNd ~ -16 - -17.9) is suggested to be related with the provenance change of the detrital particles since LGM. The addition of detrital particle from Appalachians with less radiogenic 87Sr/86Sr and positive ɛNd altered the character of the sediment of the Mississippi River during the last glaciation and deglaciation. In the Brazos-Trinity Basin IV, the narrow range of 87Sr/86Sr and ɛNd indicate that the sediment source of Brazos-Trinity Basin IV had not changed obviously during MIS5e to MIS2, mostly from coastal rivers such as Brazos River, Trinity River and Sabine River. The pre-fan with 87Sr/86Sr ~0.735 and ɛNd ~ -14.5 to -16.9, which is very similar to the deep sediment in the Ursa Basin with 87Sr/86Sr ~0.733 to 0.735 and ɛNd ~ -16 to -18. It is suggested that sediments of the pre-fan of the Brazos-Trinity Basin IV were supplied from the ancestral Mississippi River Delta during the low sea level (MIS 6). During the MIS5, the discharge of Mississippi River is thought switched to its present course, ~300 km to the east.

  11. Characterization of streamflow, suspended sediment, and nutrients entering Galveston Bay from the Trinity River, Texas, May 2014–December 2015

    USGS Publications Warehouse

    Lucena, Zulimar; Lee, Michael T.

    2017-02-21

    The U.S. Geological Survey (USGS), in cooperation with the Texas Water Development Board and the Galveston Bay Estuary Program, collected streamflow and water-quality data at USGS streamflow-gaging stations in the lower Trinity River watershed from May 2014 to December 2015 to characterize and improve the current understanding of the quantity and quality of freshwater inflow entering Galveston Bay from the Trinity River. Continuous streamflow records at four USGS streamflow-gaging stations were compared to quantify differences in streamflow magnitude between upstream and downstream reaches of the lower Trinity River. Water-quality conditions were characterized from discrete nutrient and sedi­ment samples collected over a range of hydrologic conditions at USGS streamflow-gaging station 08067252 Trinity River at Wallisville, Tex. (hereinafter referred to as the “Wallisville site”), approximately 4 river miles upstream from where the Trinity River enters Galveston Bay.Based on streamflow records, annual mean outflow from Livingston Dam into the lower Trinity River was 2,240 cubic feet per second (ft3/s) in 2014 and 22,400 ft3/s in 2015, the second lowest and the highest, respectively, during the entire period of record (1966–2015). During this study, only about 54 percent of the total volume measured at upstream sites was accounted for at the Wallisville site as the Trinity River enters Galveston Bay. This difference in water volumes between upstream sites and the Wallisville site indicates that at high flows a large part of the volume released from Lake Livingston does not reach Galveston Bay through the main channel of the Trinity River. These findings indicate that water likely flows into wetlands and water bodies surrounding the main channel of the Trinity River before reaching the Wallisville site and is being stored or discharged through other channels that flow directly into Galveston Bay.To characterize suspended-sediment concentrations and loads in Trinity River inflow to Galveston Bay, a regression model was developed to estimate suspended-sediment concentrations by using acoustic backscatter data as a surrogate. The model yielded an adjusted coefficient of determination value of 0.92 and a root mean square error of 1.65 milligrams per liter (mg/L). The mean absolute percentage error between measured and estimated suspended-sediment concentration was 35 percent. During this study, estimated suspended-sediment concentrations ranged from 2 to 701 mg/L, with a mean of 97 mg/L. Suspended-sediment concentrations varied in response to changes in discharge, with peak suspended-sediment concentrations occurring 1 to 2 days before the peak discharge for each event. The total suspended-sediment load at the Wallisville site during May 2014–December 2015 was approximately 2,200,000 tons, with a minimum monthly suspended-sediment load of 100 tons in October 2014 and a maximum monthly load of 441,000 tons in November 2015.Results from nutrient samples collected at the Wallisville site indicate that total nitrogen and total phosphorus concen­trations fluctuated at a similar rate, with the highest nutrient concentrations occurring during periods of high flow corresponding to releases from Lake Livingston. The mean concen­trations of total nitrogen and total phosphorus were approxi­mately 75 percent higher during high flow releases than during periods of low flow, overshadowing variations in nutrient concentrations caused by seasonality at the Wallisville site.Results from the study indicate nutrient delivery to Galveston Bay from the main channel of the Trinity River is likely controlled primarily by high-flow releases from Lake Livingston. For most samples collected at the Wallisville site, organic nitrogen was the predominant form of nitrogen; however, when discharge increased because of releases from Lake Livingston, the percentage of organic nitrogen typically decreased and the percentage of nitrate increased. The concentrations of total phosphorus also increased during high-flow events, likely as a result of suspended sediment within Lake Livingston releases and mobilization of sediment particles in the river channel and flood plain during these periods of high flow. The predominant source of phosphorous to Galveston Bay from the Trinity River is in particulate form closely tied to suspended-sediment concentrations. The changes in nutrient concentration and composition caused by releases from Lake Livingston during this study indicate the reservoir may play an important role in the delivery of nutrients into Galveston Bay. Further study is required to better understand the processes in Lake Livingston influencing the characteristics of nutrient and sediment inflow to Galveston Bay. With phosphorous concentrations correlated to suspended-sediment concentra­tions (coefficient of determination value of 0.75) and with the concentrations of nutrients changing as the discharge changes, the diversion of water and suspended sediment into surround­ing wetlands and channels outside of the main channel of the Trinity River may play a large role in regulating nutrient inputs into Galveston Bay.

  12. 76 FR 4365 - Renewal of the Trinity River Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ... Management Working Group AGENCY: Office of the Secretary, Interior. ACTION: Notice. SUMMARY: The Secretary of... Trinity River Adaptive Management Working Group (Working Group) for 2 years. The Working Group provides... Road, Arcata, CA 95521; 707-822-7201. SUPPLEMENTARY INFORMATION: The Working Group conducts its...

  13. 78 FR 5830 - Renewal of the Trinity River Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-28

    ... Management Working Group AGENCY: Office of the Secretary, Interior. ACTION: Notice. SUMMARY: The Secretary of... Trinity River Adaptive Management Working Group (Working Group) for 2 years. The Working Group provides... Road, Arcata, CA 95521; 707-822-7201. SUPPLEMENTARY INFORMATION: The Working Group conducts its...

  14. Herpetological monitoring and assessment on the Trinity River, Trinity County, California—Final report

    USGS Publications Warehouse

    Snover, Melissa L.; Adams, Michael J.

    2016-06-14

    The primary goal of the Trinity River Restoration Program is to rehabilitate the fisheries on the dam-controlled Trinity River. However, maintaining and enhancing other wildlife populations through the restoration initiative is also a key objective. Foothill yellow-legged frogs (Rana boylii) and western pond turtles (Actinemys marmorata) have been identified as important herpetological species on which to focus monitoring efforts due to their status as California state-listed species of concern and potential listing on the U.S. Endangered Species List. We developed and implemented a monitoring strategy for these species specific to the Trinity River with the objectives of establishing baseline values for probabilities of site occupancy, colonization, and local extinction; identifying site characteristics that correlate with the probability of extinction; and estimating overall trends in abundance. Our 3-year study suggests that foothill yellow-legged frogs declined in the probability of site occupancy. Conversely, our results suggest that western pond turtles increased in both abundance and the probability of site occupancy. The short length of our study period makes it difficult to draw firm conclusions, but these results provide much-needed baseline data. Further monitoring and directed studies are required to assess how habitat changes and management decisions relate to the status and trend of these species over the long term.

  15. Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape

    Treesearch

    H. H. Jr. Welsh; J. J. G. R. Hodgson; J. M. Emlen Duda

    2010-01-01

    Headwaters can represent 80% of stream kilometers in a watershed, and they also have unique physical and biological properties that have only recently been recognized for their importance in sustaining healthy functioning stream networks and their ecological services. We sampled 60 headwater tributaries in the South Fork Trinity River, a 2,430 km2...

  16. Geodatabase and characteristics of springs within and surrounding the Trinity aquifer outcrops in northern Bexar County, Texas, 2010--11

    USGS Publications Warehouse

    Clark, Allan K.; Pedraza, Diana E.; Morris, Robert R.; Garcia, Travis J.

    2013-01-01

    The U.S. Geological Survey, in cooperation with the Trinity Glen Rose Groundwater Conservation District, the Edwards Aquifer Authority, and the San Antonio River Authority, developed a geodatabase of springs within and surrounding the Trinity aquifer outcrops in a 331-square-mile study area in northern Bexar County, Texas. The data used to develop the geodatabase were compiled from existing reports and databases, along with spring data collected between October 2010 and September 2011. Characteristics including the location, discharge, and water-quality properties were collected for known springs and documented in the geodatabase. A total of 141 springs were located within the study area, and 46 springs were field verified. The discharge at springs with flow ranged from 0.003 to 1.46 cubic feet per second. The specific conductance of the water discharging from the springs ranged from 167 to 1,130 microsiemens per centimeter at 25 degrees Celsius with a majority of values in the range of 500 microsiemens per centimeter at 25 degrees Celsius.

  17. Geomorphic mapping to support river restoration on the Trinity River downstream from Lewiston Dam, California, 1980-2011

    USGS Publications Warehouse

    Curtis, Jennifer A.; Guerrero, Timothy M.

    2015-01-01

    Historic land use, dam construction, water storage, and flow diversions in the Trinity River watershed have resulted in downstream geomorphic change, loss of salmonid habitat, and declines in salmonid populations. The USGS in cooperation with the Trinity River Restoration Program, a multi-agency partnership tasked with implementing federally mandated restoration, completed a geomorphic change assessment to inform the planning process for future restoration work. This report documents an ARCMAP geodatabase (v.10.0) containing geomorphic features digitized from a series of rectified orthophotographs (http://dx.doi.org/10.5066/F7TT4P04). Upland, riparian, and channel features were digitized from six available base images (1980, 1997, 2001, 2006, 2009, and 2011). This report describes the structure of the geodatabase and the methods used to delineate individual geomorphic features.

  18. 77 FR 69789 - Foreign-Trade Zone 171-Liberty County, TX; Application for Reorganization/Expansion Under...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-21

    ..., Cleveland; Site 2 (45 acres)-- Port of Liberty County Industrial Park located on Trinity River, Liberty; Site 3 (27 acres)--Port of Liberty County Industrial Park located on the Trinity River some 2 miles..., Highway FM 787, Liberty; Site 5 (583.081 acres)--Sjolander Plastics Storage Railyard facility, adjacent to...

  19. Modeling water-quality loads to the reservoirs of the Upper Trinity River Basin, Texas, USA

    USDA-ARS?s Scientific Manuscript database

    Water quality modeling efforts have been conducted for 12 reservoirs in ten watersheds in Upper Trinity River Basin located in north Texas. The reservoirs are being used for water supply to the populated area around the Dallas-Fort Worth Metro and the water quality of some of these reservoirs has b...

  20. 76 FR 20302 - Listing Endangered and Threatened Species; 90-Day Finding on a Petition To List Chinook Salmon

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-12

    ... a Petition To List Chinook Salmon AGENCY: National Marine Fisheries Service (NMFS), National Oceanic... salmon (Oncorhynchus tshawytscha) in the Upper Klamath and Trinity Rivers Basin as threatened or... conduct a status review of the Chinook salmon in the Upper Klamath and Trinity Rivers Basin to determine...

  1. Diversions from Red River to Lake Dallas, Texas; and related channel losses, February and March 1954

    USGS Publications Warehouse

    Holland, Pat H.

    1954-01-01

    During the period Feb. 10 to Mar. 3, 19541 the City of Dallas pumped 1,363 acre-feet of water from its Red River plant into Pecan Creek (a tributary of Elm Fork Trinity River) 3.5 miles above Gainesville; 1,272 acre-feet of this diversion reached the head of Lake Dallas. Discharge records were obtained at four points along the channels. This water was transported down the channels of Pecan Creek and Elm Fork Trinity River to Lake Dallas, a distance of about 31 miles.

  2. A model to predict the evolution of a gravel bed river under an imposed cyclic hydrograph and its application to the Trinity River

    NASA Astrophysics Data System (ADS)

    Viparelli, Enrica; Gaeuman, David; Wilcock, Peter; Parker, Gary

    2011-02-01

    Major changes in the morphology of the Trinity River in California, such as narrowing of the cross section and sedimentation of fine sediment in pools, occurred after the closure of a system of dams. These changes caused a dramatic reduction in the salmonid population and a resulting decline of the fishery. Gravel augmentation, regulated flood releases, and mechanical channel rehabilitation are currently being implemented to help restore the aquatic habitat of the river. The present paper describes a tool, named the Spawning Gravel Refresher, for designing and predicting the effects of gravel augmentation in gravel bed rivers. The tool assumes an imposed, cycled hydrograph. The model is calibrated and applied to the regulated reach of the Trinity River in four steps: (1) zeroing runs to reproduce conditions of mobile bed equilibrium as best can be estimated for the predam Trinity River, (2) runs to compare the predictions with the results of previous studies, (3) runs at an engineering time scale to reproduce the effects of the dams, and (4) runs to design gravel augmentation schemes. In the fourth group of runs, the combined effects of engineered flood flow releases and gravel augmentation are predicted. At an engineering time scale, the model indicates that the fraction of fine sediment in the surface layer and in the topmost part of the substrate should decrease when subjected to these two restoration measures, with a consequent improvement of the quality of the spawning gravel.

  3. Linking habitat quality with trophic performance of steelhead along forest gradients in the South Fork Trinity River watershed, California

    Treesearch

    Sarah G. McCarthy; Jeffrey J. Duda; John M. Emlen; Garth R. Hodgson; David A. Beauchamp

    2009-01-01

    We examined invertebrate prey, fish diet, and energy assimilation in relation to habitat variation for steelhead Oncorhynchus mykiss (anadromous rainbow trout) and rainbow trout in nine low-order tributaries of the South Fork Trinity River, northern California. These streams spanned a range of environmental conditions, which allowed us to use...

  4. Two-dimensional resistivity investigation along West Fork Trinity River, Naval Air Station-Joint Reserve Base, Carswell Field, Fort Worth, Texas, October 2004

    USGS Publications Warehouse

    Shah, Sachin D.; Stanton, Gregory P.

    2006-01-01

    Naval Air Station-Joint Reserve Base Carswell Field (NAS-JRB) at Fort Worth, Tex., constitutes a government-owned, contractor-operated facility that has been in operation since 1942. Contaminants, primarily volatile organic compounds and metals, have entered the ground-water-flow system through leakage from waste-disposal sites and manufacturing processes. Ground water flows from west to east toward the West Fork Trinity River. During October 2004, the U.S. Geological Survey conducted a two-dimensional (2D) resistivity investigation at a site along the West Fork Trinity River at the eastern boundary of NAS-JRB to characterize the distribution of subsurface resistivity. Five 2D resistivity profiles were collected, which ranged from 500 to 750 feet long and extended to a depth of 25 feet. The Goodland Limestone and the underlying Walnut Formation form a confining unit that underlies the alluvial aquifer. The top of this confining unit is the top of bedrock at NAS-JRB. The bedrock confining unit is the zone of interest because of the potential for contaminated ground water to enter the West Fork Trinity River through saturated bedrock. The study involved a capacitively-coupled resistivity survey and inverse modeling to obtain true or actual resistivity from apparent resistivity. The apparent resistivity was processed using an inverse modeling software program. The results of this program were used to generate distributions (images) of actual resistivity referred to as inverted sections or profiles. The images along the five profiles show a wide range of resistivity values. The two profiles nearest the West Fork Trinity River generally showed less resistivity than the three other profiles.

  5. 75 FR 22123 - East Texas Electric Cooperative, Inc.; Notice of Application Accepted for Filing, Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-27

    ..., Texas. The project would not occupy any federal lands. g. Filed Pursuant to: Federal Power Act, 16 U.S.C... facilities: (1) The Trinity River Authority's (TRA) existing 14,400- foot-long (approximate) Lake Livingston dam, which has a crest elevation of 145.0 feet mean sea level (msl) and consists of (a) a basic earth...

  6. The Trinity River Greenway: A Prototype

    DTIC Science & Technology

    1972-06-01

    study have gone into the formulation of a multipurpose plan of management designed to tame the raging waters of the Trinity, subdue its flooding crests...TABLE 6 MAMMALS OF THE STUDY AREA Shorttail Shrew (Blarina brevicauda) Beaver (Castor canadensis) Least Shrew (Crytotis parva) Armadillo (Dasypjs...property resulted. The Trinity became an J :enemy, a raging torrent to be tamed and eventually subdued. Meanwhile, thoughful men began to realize that

  7. Geochemical characteristics of Heavy metals of river sediment from the main rivers at Texas, USA.

    NASA Astrophysics Data System (ADS)

    Matsumoto, I.; Hoffman, D.; MacAlister, J.; Ishiga, H.

    2008-12-01

    Trinity River is one of the biggest rivers which flows through Dallas and Fort Worth two big cities of USA and are highly populated. Trinity river drains into the Gulf of Mexico. Sediment samples collected from various points along the upper and lower streams were subjected to content analysis and elution analysis (using liquate (flow) out test) on the heavy metals like Cd, CN, Pb, Cr, As, Hg, Ni, Zn and Cu from the river sediment for the purpose of environment assessment. A total of 22 sample points were identified from upper stream to lower stream and samples were collected such that almost the whole stream length of Trinity River is covered. Results show that heavy metal content through out the river stream is below the recommended limits posing no immediate environmental threat. However, the experimental results show clear impact of human population in bigger cities on heavy metal concentrations in the river sediments as compared to smaller cities with low human population. It could be seen from the analysis that all the heavy metals show relatively high content and high elution value in Dallas and Fort Worth. As we move away from the big cities, the value of content and elution of sediment decreased by natural dilution effect by the river. And we also present the data of the Colorado and San Antonio rivers.

  8. Seasonal Assessment of the Relationship between the Discharge of the Trinity River and the Trinity Bay Ecosystem.

    DTIC Science & Technology

    1973-08-25

    that the shad and anchovy 118 populations are primarily dependent on plankton for food, which means that the higher salinities necessary for increased...therefore, regulating salinity levels for shrimp would increase both the shrimp fishery and other fish populations dependent on shrimp, as well...Bay ecosystem is that the bay is dependent upon the river for nutrients Gnd for maintenance of the salinity gradient. Odum, ’ ;.. (1963), Copeland

  9. Occurrence and Distribution of Organochlorine Compounds in Biological Tissue and Bed Sediment From Streams in the Trinity River Basin, Texas, 1992-93

    USGS Publications Warehouse

    Moring, J. Bruce

    1997-01-01

    This report describes the occurrence and distribution of organochlorine compounds in biological tissue and bed sediment from the Trinity River Basin study area of the National Water-Quality Assessment Program. Concentrations of organochlorine pesticides, polychlorinated biphenyls (PCBs), and other organochlorine compounds were determined in biological tissue and surficial bed sediment from 16 stream sites in the Trinity River Basin of east-central Texas. Asiatic clams (Corbicula fluminea) were collected at 10 sites, and fish, including blue catfish (Ictalurus furcatus), common carp (Cyprinus carpio), bluegill (Lepomis cyanellus), and yellow bullhead (Ameiurus natalis) were collected at all mainstem and two tributary sites. Thirty of the 36 compounds analyzed in biological tissue or surficial bed sediment were detected in one or both media. Overall, more organochlorine compounds were detected in bed sediment than in biological tissue; however, various chlordane isomers, DDT metabolites, and PCBs were detected more frequently in tissue than in sediment. The chlordane isomers and PCBs that were detected more frequently in biological tissue also were detected more frequently at urban sites than at agricultural sites. Organochlorine compound concentrations generally were highest in fish tissue from Trinity River mainstem sites. Fish tissue from the mainstem sites contained a higher percentage of lipids than did fish- and clam-tissue samples from the tributary sites.

  10. Altitude of the water table in the alluvial and Wilcox aquifers in the vicinity of Richland and Tehuacana creeks and the Trinity River, Texas, December 1979

    USGS Publications Warehouse

    Garza, Sergio

    1980-01-01

    This map shows the altitude of the water table in the alluvial and Wilcox aquifers in the vicinity of Richland and Tehuacana Creeks and the Trinity River, Tex., in December 1979. The water-table contours were constructed on the basis of water-level control derived from an inventory of shallow wells in the area, topographic maps, and field locations of numerous small springs and seeps. (USGS)

  11. Simulating sediment loading into the major reservoirs in Trinity River Basin

    USDA-ARS?s Scientific Manuscript database

    The Upper Trinity Basin supplies water to about one-fourth of Texas' population. The anticipated rapid growth of North Central Texas will certainly increase regional demands for high quality drinking water. This has increased concerns that sediment and nutrient loads received by drinking water reser...

  12. To provide for a land exchange with the Trinity Public Utilities District of Trinity County, California, involving the transfer of land to the Bureau of Land Management and the Six Rivers National Forest in exchange for National Forest System land in the Shasta-Trinity National Forest, and for other purposes.

    THOMAS, 112th Congress

    Rep. Herger, Wally [R-CA-2

    2011-03-29

    Senate - 07/24/2012 Received in the Senate and Read twice and referred to the Committee on Energy and Natural Resources. (All Actions) Tracker: This bill has the status Passed HouseHere are the steps for Status of Legislation:

  13. Using Geophysics to Define Hydrostratigraphic Units in the Edwards and Trinity Aquifers, Texas

    NASA Astrophysics Data System (ADS)

    Smith, B. D.; Blome, C. D.; Clark, A. K.; Kress, W.; Smith, D. V.

    2007-05-01

    Airborne and ground geophysical surveys conducted in Uvalde, Medina, and northern Bexar counties, Texas, can be used to define and characterize hydrostratigraphic units of the Edwards and Trinity aquifers. Airborne magnetic surveys have defined numerous Cretaceous intrusive stocks and laccoliths, mainly in Uvalde County, that influence local hydrology and perhaps regional ground-water flow paths. Depositional environments in the aquifers can be classified as shallow water platforms (San Marcos Platform, Edwards Group), shoal and reef facies (Devils River Trend, Devils River Formation), and deeper water basins (Maverick Basin, West Nueces, McKnight, and Salmon Peak Formations). Detailed airborne and ground electromagnetic surveys have been conducted over the Edwards aquifer catchment zone (exposed Trinity aquifer rocks), recharge zone (exposed Edwards aquifer rocks), and artesian zone (confined Edwards) in the Seco Creek area (northeast Uvalde and Medina Counties; Devils River Trend). These geophysical survey data have been used to divide the Edwards exposed within the Balcones fault zone into upper and lower hydrostratigraphic units. Although both units are high electrical resistivity, the upper unit has slightly lower resistivity than the lower unit. The Georgetown Formation, at the top of the Edwards Group has a moderate resistivity. The formations that comprise the upper confining units to the Edwards aquifer rocks have varying resistivities. The Eagleford and Del Rio Groups (mainly clays) have very low resistivities and are excellent electrical marker beds in the Seco Creek area. The Buda Limestone is characterized by high resistivities. Moderate resistivities characterize the Austin Group rocks (mainly chalk). The older Trinity aquifer, underlying the Edwards aquifer rocks, is characterized by less limestone (electrically resistive or low conductivity units) and greater quantities of mudstones (electrically conductive or low resistivity units). In the western area (Devils River Trend and Maverick Basin) of the Trinity aquifer system there are well-defined collapse units and features that are marked by moderate resistivities bracketed by resistive limestone and conductive mudstone of the Glen Rose Limestone. In the central part of the aquifer (San Marcos Platform) the Trinity's lithologies are divided into upper and lower units with further subdivisions into hydrostratigraphic units. These hydrostratigraphic units are well mapped by an airborne electromagnetic survey in Bexar County. Electrical properties of the Edwards aquifer also vary across the fresh-saline water interface where ground and borehole electrical surveys have been conducted. The saline- saturated Edwards is predictably more conductive than the fresh-water saturated rocks. Similar fresh-saline water interfaces exist within the upper confining units of the Edwards aquifer (Carrizo-Wilcox aquifer) and the Trinity aquifer rocks.

  14. New Insights Into Valley Formation and Preservation: Geophysical Imaging of the Offshore Trinity River Paleovalley

    NASA Astrophysics Data System (ADS)

    Speed, C. M.; Swartz, J. M.; Gulick, S. P. S.; Goff, J.

    2017-12-01

    The Trinity River paleovalley is an offshore stratigraphic structure located on the inner continental shelf of the Gulf of Mexico offshore Galveston, Texas. Its formation is linked to the paleo-Trinity system as it existed across the continental shelf during the last glacial period. Newly acquired high-resolution geophysical data have imaged more complexity to the valley morphology and shelf stratigraphy than was previously captured. Significantly, the paleo-Trinity River valley appears to change in the degree of confinement and relief relative to the surrounding strata. Proximal to the modern shoreline, the interpreted time-transgressive erosive surface formed by the paleo-river system is broad and rugose with no single valley, but just 5 km farther offshore the system appears to become confined to a 10 km wide valley structure before again becoming unconfined once again 30 km offshore. Fluvial stratigraphy in this region has a similar degree of complexity in morphology and preservation. A dense geophysical survey of several hundred km is planned for Fall 2017, which will provide unprecedented imaging of the paleovalley morphology and associated stratigraphy. Our analysis leverages robust chirp processing techniques that allow for imaging of strata on the decimeter scale. We will integrate our geophysical results with a wide array of both newly collected and previously published sediment cores. This approach will allow us to address several key questions regarding incised valley formation and preservation on glacial-interglacial timescales including: to what extent do paleo-rivers remain confined within a single broad valley structure, what is the fluvial systems response to transgression, and what stratigraphy is created and preserved at the transition from fluvial to estuarine environments? Our work illustrates that traditional models of incised valley formation and subsequent infilling potentially fail to capture the full breadth of dynamics of past river systems.

  15. Quantifying downstream impacts of impoundment on flow regime and channel planform, lower Trinity River, Texas

    NASA Astrophysics Data System (ADS)

    Wellmeyer, Jessica L.; Slattery, Michael C.; Phillips, Jonathan D.

    2005-07-01

    As human population worldwide has grown, so has interest in harnessing and manipulating the flow of water for the benefit of humans. The Trinity River of eastern Texas is one such watershed greatly impacted by engineering and urbanization. Draining the Dallas-Fort Worth metroplex, just under 30 reservoirs are in operation in the basin, regulating flow while containing public supplies, supporting recreation, and providing flood control. Lake Livingston is the lowest, as well as largest, reservoir in the basin, a mere 95 km above the Trinity's outlet near Galveston Bay. This study seeks to describe and quantify channel activity and flow regime, identifying effects of the 1968 closure of Livingston dam. Using historic daily and peak discharge data from USGS gauging stations, flow duration curves are constructed, identifying pre- and post-dam flow conditions. A digital historic photo archive was also constructed using six sets of aerial photographs spanning from 1938 to 1995, and three measures of channel activity applied using a GIS. Results show no changes in high flow conditions following impoundment, while low flows are elevated. However, the entire post-dam period is characterized by significantly higher rainfall, which may be obscuring the full impact of flow regulation. Channel activity rates do not indicate a more stabilized planform following dam closure; rather they suggest that the Trinity River is adjusting itself to the stress of Livingston dam in a slow, gradual process that may not be apparent in a modern time scale.

  16. Environmental Impact Statement, Aubrey Lake, Elm Fork, Trinity River, Texas.

    DTIC Science & Technology

    1973-01-01

    the most expensive site location studied. For recreation, site 4 is equal to sites 1 and 2, but less desirable than site 3. V- 9 ( 5 ) Summay. An...IV-3 9 . Agricultural Resources IV-3 10. Adverse Impacts on the Lewisville Lake Project IV- 4 Section V - Alternatives to the Proposed Action 1. No...Elements V- 4 e. Recreational Elements V- 5 2. Alternatives That Will Meet All of the Authorized Project Purposes V- 5 a. Alternate Damsite Locations V-6

  17. Water-quality assessment of the Trinity River basin, Texas : ground-water quality of the Trinity, Carrizo-Wilcox, and Gulf Coast aquifers, February-August 1994

    USGS Publications Warehouse

    Reutter, David C.; Dunn, David D.

    2000-01-01

    Ground-water samples were collected from wells in the outcrops of the Trinity, Carrizo-Wilcox, and Gulf Coast aquifers during February-August 1994 to determine the quality of ground water in the three major aquifers in the Trinity River Basin study unit, Texas. These samples were collected and analyzed for selected properties, nutrients, major inorganic constituents, trace elements, pesticides, dissolved organic carbon, total phenols, methylene blue active substances, and volatile organic compounds as part of the U.S. Geological Survey National Water-Quality Assessment Program. Quality-control practices included the collection and analysis of blank, duplicate, and spiked samples. Samples were collected from 12 shallow wells (150 feet or less) and from 12 deep wells (greater than 150 feet) in the Trinity aquifer, 11 shallow wells and 12 deep wells in the Carrizo-Wilcox aquifer, and 14 shallow wells and 10 deep wells in the Gulf Coast aquifer. The three aquifers had similar water chemistries-calcium was the dominant cation and bicarbonate the dominant anion. Statistical tests relating well depths to concentrations of nutrients and major inorganic constituents indicated correlations between well depth and concentrations of ammonia nitrogen, nitrite plus nitrate nitrogen, bicarbonate, sodium, and dissolved solids in the Carrizo-Wilcox aquifer and between well depth and concentrations of sulfate in the Gulf Coast aquifer. The tests indicated no significant correlations for the Trinity aquifer. Concentrations of dissolved solids were larger than the secondary maximum contaminant level of 500 milligrams per liter established for drinking water by the U.S. Environmental Protection Agency in 12 wells in the Trinity aquifer, 4 wells in the Carrizo-Wilcox aquifer, and 6 wells in the Gulf Coast aquifer. Iron concentrations were larger than the secondary maximum contaminant level of 300 micrograms per liter in at least 3 samples from each aquifer, and manganese concentrations were larger than the secondary maximum contaminant level of 50 micrograms per liter in at least 2 samples from each aquifer. The pesticides atrazine, deethylatrazine, and pp'-DDE were detected in at least one sample from each aquifer. Diazinon was detected in 11 Trinity aquifer samples and 4 Carrizo-Wilcox aquifer samples. Each aquifer had one detection of a volatile organic compound-benzene in the Trinity aquifer, trichlorofluoromethane in the Carrizo-Wilcox aquifer, and trichloromethane in the Gulf Coast aquifer.

  18. Environmental Assessment of the Trinity River Discharge on Productivity in Trinity Bay.

    DTIC Science & Technology

    1972-09-15

    3 Metallic Ion Concentrations ...... .................. ... 33 Mercury ........... .......................... 36 Arsenic...TB 25 SE 8-10 27.0 -- 35 TB 26 SE 12 27.0 -- 25 TB 27 SE 10-12 30.0 -- 37 TB 28 SE 6-10 -- 28 18 TABLE I (continued) Eh* H2S Mg Ca Mg/Ca Mercury ...the Houston Ship Channel. Metallic ion Concentrations Concentrations of mercury , arsenic, calcium, and magnesium ions were determined for each bottom

  19. Organic compounds in Elm Fork Trinity River water used for public supply near Carrollton, Texas, 2002-05

    USGS Publications Warehouse

    Ging, Patricia B.; Delzer, Gregory C.; Hamilton, Pixie A.

    2009-01-01

    Organic compounds studied in this U.S. Geological Survey (USGS) assessment generally are man-made, including pesticides, solvents, gasoline hydrocarbons, personal-care and domestic-use products, refrigerants, and propellants. A total of 103 of 277 compounds were detected at least once among the 30 samples of source water for a community water system on the Elm Fork Trinity River near Carrollton, Texas, collected approximately monthly during 2002-05. The diversity of compounds detected indicates a variety of different sources and uses (including wastewater discharge, industrial, agricultural, domestic, and others) and different pathways (including overland runoff and groundwater discharge) to drinking-water supplies. Nine compounds were detected year-round in source-water samples, including chloroform, methyl tert-butyl ether (MTBE), and selected herbicide compounds commonly used in the Trinity River Basin and in other urban areas across the United States. About 90 percent of the 42 compounds detected most frequently in source water (in at least 20 percent of the samples) also were detected most frequently in finished water (after treatment but before distribution). Concentrations for all detected compounds in source and finished water generally were less than 0.1 microgram per liter and always less than human-health benchmarks, which are available for about one-half of the detected compounds.

  20. Overview of the evolution of clay mineralogy in the Gulf of Mexico: implications for regional climate and drainage history of the Mississippi and Brazos-Trinity Rivers

    NASA Astrophysics Data System (ADS)

    Adatte, T.; John, C. M.; Flemings, P. B.; Behrmann, J.

    2005-12-01

    In this paper we present the overview and preliminary results of the analysis of clay minerals in two mini basins drilled during IODP Expedition 308. The goal of our project is to explore the vertical and temporal trends in clay mineralogy in the Ursa Basin and the Brazos-Trinity basin #4. The Brazos-Trinity basin was the sink for sands and clays carried by the Brazos and Trinity Rivers, while the Ursa basin was the sink for sediments carried by the Mississippi river. Reconstructing clay minerals (phyllosilicates <2μm in size) accumulations at these locations could thus potentially yield information on changes in the transport and the source of the siliclastic material transported in the course of the Pleistocene by these three rivers. Moreover, because the type of clay formed in soils through weathering processes largely depend on temperature and amount of precipitation, the dataset generated could provide clues on past climate changes. Some of the mechanisms that are hypothesized to play a major role in controlling clay accumulation in the basins investigated are reworking of clays on the American continent (controlled at the time-scale investigated here by changes in precipitation) and turbidity current deposition (controlled mainly by sea-level changes and thus glacio-eustasy). Finally, a major focusing point of Expedition 308 was sediment physical properties in an overpressured basin. Because each clay mineral specie has a specific average grain sizes, physical properties and cation exchange capacity, the clay mineral composition of the sediment investigated here (dominated by clay-sized particles) may partly control how these sediments react to changes in pressure and temperature. Thus, clay mineral data could contribute to our understanding of the physical properties of the sediments in overpressured basins, and collaborations with geotechnical scientist are planned.

  1. Ecological Survey Data for Environmental Considerations on the Trinity River and Tributaries, Texas.

    DTIC Science & Technology

    1973-07-01

    purpurascens (Sw.) DC. Marsh purslane Ludwigia alustrie (L.) Ell. Maryland senna Cassia marilandica L. Mauchia Bradburia hirtella T. & G. Maximilian...conditions in the lower river. Increases and decreases in salinity due to flow volume determine to a large extent the number of marine species likely to...which may be temporary or, in some cases, long-term inhabitants of the lower river. Seasonal fluctuations in river flow. salinity , turbidity

  2. Computational Modeling of River Flow, Sediment Transport, and Bed Evolution Using Remotely Sensed Data

    DTIC Science & Technology

    2011-01-01

    mile reach from Lewiston Lake to the North Fork of the Trinity, which includes the sites above. As of this writing, all data has been analyzed and...collection effort, probably a bathymetric LiDAR effort on the Kootenai River near Bonner’s Ferry, Idaho . Detailed multibeam acoustic surveys already

  3. Sources and Delivery of Nutrients to the Northwestern Gulf of Mexico from Streams in the South-Central United States1

    PubMed Central

    Rebich, Richard A; Houston, Natalie A; Mize, Scott V; Pearson, Daniel K; Ging, Patricia B; Evan Hornig, C

    2011-01-01

    Abstract SPAtially Referenced Regressions On Watershed attributes (SPARROW) models were developed to estimate nutrient inputs [total nitrogen (TN) and total phosphorus (TP)] to the northwestern part of the Gulf of Mexico from streams in the South-Central United States (U.S.). This area included drainages of the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf hydrologic regions. The models were standardized to reflect nutrient sources and stream conditions during 2002. Model predictions of nutrient loads (mass per time) and yields (mass per area per time) generally were greatest in streams in the eastern part of the region and along reaches near the Texas and Louisiana shoreline. The Mississippi River and Atchafalaya River watersheds, which drain nearly two-thirds of the conterminous U.S., delivered the largest nutrient loads to the Gulf of Mexico, as expected. However, the three largest delivered TN yields were from the Trinity River/Galveston Bay, Calcasieu River, and Aransas River watersheds, while the three largest delivered TP yields were from the Calcasieu River, Mermentau River, and Trinity River/Galveston Bay watersheds. Model output indicated that the three largest sources of nitrogen from the region were atmospheric deposition (42%), commercial fertilizer (20%), and livestock manure (unconfined, 17%). The three largest sources of phosphorus were commercial fertilizer (28%), urban runoff (23%), and livestock manure (confined and unconfined, 23%). PMID:22457582

  4. Geomorphology of the Trinity River floodplain in Dallas County, Texas

    NASA Astrophysics Data System (ADS)

    Haugen, B. D.; Roig-Silva, C.; Manning, A. R.; Harrelson, D. W.; Olsen, R. S.; Dunbar, J. P.; Pearson, M. L.

    2010-12-01

    Data from more than 1,800 geologic borings and over 500 cone penetrometer tests (CPTs) were used to characterize the geomorphology of the Trinity River floodplain in the Dallas Metropolitan Area. Historical maps, aerial photographs and other published information were used to prepare a preliminary geomorphic map. Boring logs and CPT data were then used to refine the preliminary map, produce a series of two-dimensional (2D) and three-dimensional (3D) cross sections, and interpret the recent geologic history of the area. Geomorphologic interpretations - most importantly the locations of paleo-channel deposits of sands and gravels - were used to identify reaches of the levees managed by the United States Army Corps of Engineers (USACE) and the City of Dallas that may be at significant risk for under-seepage. Boring logs and CPT data collected atop the levees were used to assess through-seepage risks. Local bedrock is comprised of cretaceous-age Eagle Ford Shale and Austin Chalk. Depth to bedrock in the study area averaged 14.6 m (47.8 ft). The uppermost surface of bedrock has been deeply incised by a meandering river. Vertical relief between the shallowest bedrock sections and deepest portion of the incised paleo-channel is more than 15 m (50 ft). In places the incised paleo-channel is more than 0.8 km (0.5 mi) wide. These data confirm the presence of an erosional unconformity between local bedrock and overlying quaternary floodplain deposits. The observed erosional unconformity is attributed to a higher-energy fluvial environment that occurred as a result of a drop in base level. Recent floodplain deposits consist of interlobate point bar, channel and overbank sediments that are generally distributed in a fining-upward sequence. Buried channel dimensions vary widely, but are more than 250 m (820 ft) in some areas - much larger than the current channel. A semi-continuous basal layer of quaternary sands and gravels approximately 2 to 5 m (7 to 16 ft) thick exists in much of the study area. These data indicate that the discharge rate of the Trinity River today is at its lowest since quaternary deposition began. Large terraces of varying geometry and elevation observed at the edge of the floodplain show that the Trinity River has been geographically constrained to its current floodplain since the late Cretaceous, and perhaps even earlier.

  5. Computational Modeling of River Flow, Sediment Transport, and Bed Evolution Using Remotely Sensed Data

    DTIC Science & Technology

    2009-01-01

    Ranch. Bathymetric LiDAR was collected over a 40-mile reach from Lewiston Lake to the North Fork of the Trinity, which includes the sites above. Initial...bathymetric LiDAR flight is planned for the Kootenai River near Bonner’s Ferry, Idaho for next year. Detailed multibeam acoustic surveys already exist for the

  6. Estimating changes in riparian and channel features along the Trinity River downstream of Lewiston Dam, California, 1980 to 2011

    USGS Publications Warehouse

    Curtis, Jennifer A.

    2015-01-01

    Dam construction, flow diversion, and legacy landuse effects reduced the transport capacity, sediment supply, channel complexity and floodplain-connectivity along the Trinity River, CA below Lewiston Dam. This study documents the geomorphic evolution of the Trinity River Restoration Program’s intensively managed 65-km long restoration reach from 1980 to 2011. The nature and extent of riparian and channel changes were assessed using a series of geomorphic feature maps constructed from ortho-rectified photography acquired at low flow conditions in 1980, 1997, 2001, 2006, 2009, and 2011. Since 1980 there has been a general conversion of riparian to channel features and expansion of the active channel area. The primary mechanism for expansion of the active channel was bank erosion from 1980 to 1997 and channel widening was well distributed longitudinally throughout the study reach. Subsequent net bar accretion from 1997 to 2001, followed by slightly higher net bar scour from 2001 to 2006, occurred primarily in the central and lower reaches of the study area. In comparison, post-2006 bank and bar changes were spatially-limited to reaches with sufficient local transport capacity or sediment supply supported by gravel augmentation, mechanical channel rehabilitation, and tributary contributions to flow and sediment supply. A series of tributary floods in 1997, 1998 and 2006 were the primary factors leading to documented increases in channel complexity and floodplain connectivity. During the post-2006 period managed flow releases, in the absence of large magnitude tributary flooding, combined with gravel augmentation and mechanical restoration caused localized increases in sediment supply and transport capacity leading to smaller but measurable increases in channel complexity and floodplain connectivity primarily in the upper river below Lewiston Dam.

  7. Coupling hydrodynamic modeling and empirical measures of bed mobility to assess the risk of redd scour on a large regulated river

    Treesearch

    Christine L. May; Bonnie S. Pryor; Thomas E. Lisle; Margaret M. Lang

    2009-01-01

    n order to assess the risk of scour and fill of spawning redds during floods, an understanding of the relations among river discharge, bed mobility, and scour and fill depths in areas of the streambed heavily utilized by spawning salmon is needed. Our approach coupled numerical flow modeling and empirical data from the Trinity River, California, to quantify spatially...

  8. Sources and Delivery of Nutrients to the Northwestern Gulf of Mexico from Streams in the South-Central United States

    USGS Publications Warehouse

    Rebich, R.A.; Houston, N.A.; Mize, S.V.; Pearson, D.K.; Ging, P.B.; Evan, Hornig C.

    2011-01-01

    SPAtially Referenced Regressions On Watershed attributes (SPARROW) models were developed to estimate nutrient inputs [total nitrogen (TN) and total phosphorus (TP)] to the northwestern part of the Gulf of Mexico from streams in the South-Central United States (U.S.). This area included drainages of the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf hydrologic regions. The models were standardized to reflect nutrient sources and stream conditions during 2002. Model predictions of nutrient loads (mass per time) and yields (mass per area per time) generally were greatest in streams in the eastern part of the region and along reaches near the Texas and Louisiana shoreline. The Mississippi River and Atchafalaya River watersheds, which drain nearly two-thirds of the conterminous U.S., delivered the largest nutrient loads to the Gulf of Mexico, as expected. However, the three largest delivered TN yields were from the Trinity River/Galveston Bay, Calcasieu River, and Aransas River watersheds, while the three largest delivered TP yields were from the Calcasieu River, Mermentau River, and Trinity River/Galveston Bay watersheds. Model output indicated that the three largest sources of nitrogen from the region were atmospheric deposition (42%), commercial fertilizer (20%), and livestock manure (unconfined, 17%). The three largest sources of phosphorus were commercial fertilizer (28%), urban runoff (23%), and livestock manure (confined and unconfined, 23%). ?? 2011 American Water Resources Association. This article is a U.S. Government work and is in the public domain in the USA.

  9. 33 CFR 117.989 - Trinity River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Pacific Railroad bridges, mile 41.4 at Liberty, mile 54.8 at Kenefick, mile 117.3 at Goodrich, mile 181.8 at Riverside, and the Burlington Northern Santa Fe railroad bridge, mile 96.2 at Romayor, need not be...

  10. 33 CFR 117.989 - Trinity River.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Pacific Railroad bridges, mile 41.4 at Liberty, mile 54.8 at Kenefick, mile 117.3 at Goodrich, mile 181.8 at Riverside, and the Burlington Northern Santa Fe railroad bridge, mile 96.2 at Romayor, need not be...

  11. 33 CFR 117.989 - Trinity River.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Pacific Railroad bridges, mile 41.4 at Liberty, mile 54.8 at Kenefick, mile 117.3 at Goodrich, mile 181.8 at Riverside, and the Burlington Northern Santa Fe railroad bridge, mile 96.2 at Romayor, need not be...

  12. 33 CFR 117.989 - Trinity River.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Pacific Railroad bridges, mile 41.4 at Liberty, mile 54.8 at Kenefick, mile 117.3 at Goodrich, mile 181.8 at Riverside, and the Burlington Northern Santa Fe railroad bridge, mile 96.2 at Romayor, need not be...

  13. 33 CFR 117.989 - Trinity River.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Pacific Railroad bridges, mile 41.4 at Liberty, mile 54.8 at Kenefick, mile 117.3 at Goodrich, mile 181.8 at Riverside, and the Burlington Northern Santa Fe railroad bridge, mile 96.2 at Romayor, need not be...

  14. Annual compilation and analysis of hydrologic data for Honey Creek, Trinity River Basin, Texas, 1969

    USGS Publications Warehouse

    Sansom, J.N.

    1971-01-01

    The U.S. Soil Conservation Service is actively engaged in the installation of flood and soil erosion reducing measures in Texas under the authority of ''The Flood Control Act of 1936 and 1944" and ''Watershed Protection and Flood Prevention Act" (Public Law 566), as amended. The Soil Conservation Service has found a total of approximately 3,500 floodwater-retarding structures to be physically and economically feasible in Texas. As of September 30, 1969, 1,355 of these structures had been built. This watershed-development program will have varying but important effects on the natural surface- and ground-water resources of river basins, especially where a large number of the floodwater-retarding structures are built. Basic hydrologic data under natural and developed conditions are needed to appraise the effects of the structures on the yield and mode of occurrence of runoff .

  15. Long-term streamflow trends on California’s north coast

    Treesearch

    J. Eli Asarian; Jeffrey D. Walker

    2017-01-01

    Using streamflow data from the U.S. Geological Survey, we assessed long-term (1953-2012) trends in streamflow on California’s North Coast including many sites in the redwood region. The study area spans from the Smith River to the Mattole River and includes the Eel and Klamath-Trinity basins. Antecedent Precipitation Index (API) is a time-weighted summary of...

  16. 75 FR 6791 - Surety Companies Acceptable on Federal Bonds-Termination: Trinity Universal Insurance Company

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-10

    ... DEPARTMENT OF THE TREASURY Fiscal Service Surety Companies Acceptable on Federal Bonds--Termination: Trinity Universal Insurance Company AGENCY: Financial Management Service, Fiscal Service... that the Certificate of Authority issued by the Treasury to the above-named company under 31 U.S.C...

  17. 77 FR 18853 - Trinity River National Wildlife Refuge, Liberty County, TX; Comprehensive Conservation Plan and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-28

    ... the refuge. curricula, working with program, upon the local schools to meet completion of the State... fishing pier, at Champion Lake Public fishing piers at butterfly garden, Use Area, and construct Brierwood...

  18. Smoke from Fires in Southwestern Oregon, Northern California

    NASA Image and Video Library

    2017-12-08

    This satellite image shows smoke from several fires in Oregon and California on Aug. 2, 2015. The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument that flies aboard NASA's Aqua satellite captured an image of smoke from these fires Aug. 2 at 21:05 UTC (5:05 p.m. EDT). The multiple red pixels are heat signatures detected by MODIS. The smoke appears to be a light brown color. InciWeb is an interagency all-risk incident information management system that coordinates with federal, state and local agencies to manage wildfires. In Oregon smoke from the Cable Crossing Fire, the Stouts Fire and the Potter Mountain Complex Fire commingle. The Cable Crossing Fire was reported burning on forestlands protected by the Douglas Forest Protective Association (DFPA) at approximately 3:25 p.m. on Tuesday, July 28, 2015, near Oregon Highway 138 East, near Mile Post 23, east of Glide. South of the Cable Crossing Fire is the Stouts Fire also in forestlands of the DFPA. This fire was reported on Thursday, July 30, 2015, burning approximately 11 miles east of Canyonville near the community of Milo. East of the other fires is the Potter Mountain Complex Fire. These fires are located in the Deschutes Forest consists of eight fires. According to Inciweb they were started by dry lightning on Saturday, Aug. 2, at approximately 5:30 p.m. about five miles north of Toketee Lake. In northern California, smoke from the River Complex Fire, the Fork Complex Fire and the Shf July Lightning Fire was visible in the MODIS image. The River Complex currently consists of seven reported and observed fires on the Six Rivers and Shasta Trinity National Forests. Originally identified as 18 fires, some have burned together. Inciweb noted that in the Six Rivers National Forest there are fires in the Trinity Alps Wilderness. Those fires include the Groves Fire and the Elk Fire. In the Shasta-Trinity National Forest the fires include the Happy Fire at 2,256 acres, Daily Fire at 16 acres, the Look Fire at 7 acres, Onion Fire at 136 acres and Smokey Fire at 1 acre. In the same forest, south of the River Complex is the Fork Complex fire. Inciweb reported that the Fork Complex consists of (at current count) over 40 fires, all of which were ignited by lightning between July 29 and 31, 2015. To the southwest of this complex is the Mad River Complex. This is a series of seven lightning fires that started on July 30, 2015 after a lightning storm moved through Northern California. To the east of this and the other fires, burns another near Redding, California, called the Shf July Lightning Fire. This is also under the Shasta-Trinity National Forest management. At 8 p.m. PDT on Aug. 2, Inciweb reported that approximately 15 lightning strikes occurred within 24 hours throughout the Shasta Trinity National Forest and resulted in two new fires. The Caves fire, east of Mt. Shasta, is approximately one-tenth of an acre. The Bluejay fire, east of Shasta Lake, is approximately four acres. Image credit: NASA Goddard's MODIS Rapid Response Team, Jeff Schmaltz NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram

  19. Urban Town and Gown: Increasing Minority Participation in the Geosciences Through a College-High School Partnership in Hartford, CT

    NASA Astrophysics Data System (ADS)

    OConnell, S.; OConnell, S.; OConnell, S.; Osborn, J. L.; Osborn, J. L.

    2001-12-01

    Urban public schools are often poor and have a tremendous need for educational assistance. In many cities the population is dominated by ethnic minorities. Hartford, CT, is one of these cities. Only about 50% of the students entering high school graduate and approximately 50% of those go on to higher education. Of those students taking the SAT's the average verbal and math scores are below 400. Despite these statistics, many students do succeed and therein lies an opportunity for earth scientists. As individuals and as institutions we can partner with schools and students to involve them in and excite them about the earth sciences. In 1995 Trinity College, located in Hartford, CT, undertook a \\$175 m.d. neighborhood revitalization project with funds from the college, neighboring institutions, foundations, and city, state and federal governments. Central to the revitalization is the "Learning Corridor," an educational complex that includes a magnet Montessori School, a Math and Science Middle School, and a Math and Science Magnet High School (GHAMAS). GHAMAS has a three-fold mission: teaching math and science to high school students, professional development for all math and science teachers from participating school districts, and community outreach. The Learning Corridor is adjacent to the Trinity College campus and Trinity faculty work with GHAMAS faculty to fulfill all three missions. Trinity faculty teach several high school classes. During the summer 3 Trinity and 1 GHAMAS faculty participated as a group in a week long-long NSF-sponsored Environmental Science workshop. This fall over ten teacher workshops were co-taught by Trinity and GHAMAS faculty. Recent NSF funding will allow us to develop a collaborative education and research program focused on the Connecticut River.

  20. 78 FR 21906 - Six Rivers National Forest, California, Trinity Summit Range Assessment Environmental Impact...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-12

    ... the headwaters of Horse Linto Creek and Red Cap Creek. The majority of the grazing lands fall within... Horse Linto, Mill and Tish Tang creeks. Purpose and Need for Action The purpose and need for action...

  1. Scroll bar growth on the coastal Trinity River, TX, USA

    NASA Astrophysics Data System (ADS)

    Mason, J.; Hassenruck-Gudipati, H. J.; Mohrig, D. C.

    2017-12-01

    The processes leading to the formation and growth of scroll bars remain relatively mysterious despite how often they are referenced in fluvial literature. Their definition is descriptive; they are characterized as arcuate topographic highs present on the inner banks of channel bends on meandering rivers, landward of point bars. Often, they are used as proxies for previous positions of point bars. This assumption of a one-to-one correspondence between point bars and scroll bars should be reconsidered as 1) planform curvature for scroll bars is consistently smaller than the curvature for adjacent point bars, and 2) deposition on the scroll bar is typically distinct and disconnected from the adjacent point bar deposition. Results from time-lapse airborne lidar data as well as from trenches through five separate scroll bar - point bar pairings on the Trinity River in east TX, USA, will be discussed in relation to formative scroll bar processes and their connection to point bars. On the lidar difference map, scroll bar growth appears as a strip of increased deposition flanked on both the land- and channel-ward sides by areas with no or limited deposition. Trenches perpendicular to these scrolls typically show a base of dune-scale cross stratification interpreted to be associated with a previous position of the point bar. These dune sets are overlain by sets of climbing-ripple cross-strata that form the core of the modern scroll bar and preserve a record of multiple transport directions (away from, towards, and parallel to the channel). Preliminary Trinity River grain-size analyses show that the constructional scrolls are enriched in all grain sizes less than 250 microns in diameter, while point bars are enriched in all grain sizes above this cut off. Scroll bars are hypothesized to be akin to levees along the inner banks of channels-flow expansion caused by the presence of point bars induces deposition of suspended sediment that defines the positions of the scroll bars.

  2. Oblique view of Houston, Texas as seen from Apollo 9

    NASA Image and Video Library

    1969-03-09

    AS09-22-3463 (9 March 1969) --- Oblique view of the Houston, Texas area as photographed from the Apollo 9 spacecraft during its Earth-orbital mission. This picture was taken from an altitude of 103 nautical miles, at about 1:40 p.m. (CST), on March 9, 1969. Prominent features visible include highways leading out of the city, Lake Houston, San Jacinto River, Trinity Bay, Galveston Bay, Brazos River, Baytown, and Texas City.

  3. Effects of water temperature on breeding phenology, growth, and metamorphosis of foothill yellow-legged frogs (Rana boylii): a case study of the regulated mainstem and unregulated tributaries of California's Trinity River

    Treesearch

    Clara Wheeler; James Bettaso; Donald Ashton; Hartwell Welsh

    2014-01-01

    Many riverine organisms are well adapted to seasonally dynamic environments, but extreme changes in flow and thermal regimes can threaten sustainability of their populations in regulated rivers. Altered thermal regimes may limit recruitment to populations by shifting the timing of breeding activities and affecting the growth and development of early life stages. Stream...

  4. Wildfires in California, August 17, 2015

    NASA Image and Video Library

    2017-12-08

    Very hot, dry and unstable conditions in California and across the Pacific Northwest add to the challenges facing firefighters as they battle blazes around the region. Cal Fire is urging Californians to be extremely cautious, especially for the next few days, as the current conditions increase the dangers authorities face. This image was taken by NASA-NOAA's Suomi NPP satellite's VIIRS instrument around 2145 UTC (5:45 p.m. EDT) on August 17, 2015. Northern California is seeing smoke from the River Complex, Route Complex, South Complex, Fork Complex and Mad River Complex fires combine over a large area of the Shasta-Trinity National Forest west of Redding, California, while the Rough Fire in Fresno County is spreading toward the Black Rock Reservoir, causing evacuations and road closures. Fires across the Pacific Northwest aren't limited to California. Please see the Suomi NPP VIIRS composites in NOAA View to see the growth and extent of fires over the past weeks. Credit: NASA/NOAA via NOAA Environmental Visualization Laboratory

  5. 78 FR 49735 - Intent To Prepare a Draft Environmental Impact Statement for Dam Safety Study, Lake Lewisville...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-15

    ... determine appropriate permanent methods for correcting potential problems, interim risk reduction measures... Environmental Impact Statement for Dam Safety Study, Lake Lewisville Dam, Elm Fork Trinity River, Denton County... primary purposes of the project are flood risk management, [[Page 49736

  6. Appendix: Assessment of watershed vulnerability to climate change - Pilot National Forest reports

    Treesearch

    Michael J. Furniss; Ken B. Roby; Dan Cenderelli; John Chatel; Caty F. Clifton; Alan Clingenpeel; Polly E. Hays; Dale Higgins; Ken Hodges; Carol Howe; Laura Jungst; Joan Louie; Christine Mai; Ralph Martinez; Kerry Overton; Brian P. Staab; Rory Steinke; Mark Weinhold

    2013-01-01

    Assessment of watershed vulnerability to climate change. Pilot National Forest reports: Gallatin National Forest, Helena National Forest, Grand Mesa, Uncompahgre, and Gunnison National Forests, White River National Forest, Coconino National Forest, Sawtooth National Forest, Shasta-Trinity National Forest, Umatilla National Forest, Umatilla National Forest, Ouachita...

  7. 77 FR 37656 - Multi-Species Habitat Conservation Plan

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-22

    ... the survival and recovery of the species in the wild; and (5) the applicant will meet other measures... phlox (Phlox hirsuta), and from NMFS for the Southern Oregon/Northern California Coast coho salmon... the ITP for the unlisted Klamath and Trinity Rivers Chinook salmon (O. tshawytscha) ESU and the...

  8. 77 FR 64541 - Trinity River National Wildlife Refuge, Liberty County, TX; Final Comprehensive Conservation Plan...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-22

    ...-guided with public use jubilee and various interpretative facilities. public speaking events. materials... and the EA to the public, announcing and requesting comments in a notice of availability in the... recreational opportunities available to the public, including opportunities for hunting, fishing, wildlife...

  9. Inundation and draining of the Trinity River floodplain associated with extreme precipitation from Hurricane Harvey, east Texas, USA

    NASA Astrophysics Data System (ADS)

    Hassenruck-Gudipati, H. J.; Goudge, T. A.; Mohrig, D. C.

    2017-12-01

    Rivers swelled up beyond their historic high-water marks due to precipitation from Hurricane Harvey. We used Harvey-induced flooding to investigate the flow connectivity between the coastal Trinity River and its floodplain by measuring water depth and velocity, as well as sediment-transporting conditions on the natural levee that separates the two. River discharge within the study area peaked at a historic high of 3600 cubic meters per second on September 1, 2017. The levees on two river bends were investigated on September 3 and 4 in order to characterize the hydraulic connectivity between the channel and its floodplain during the early falling limb of this flood. On September 3, a river bend located approximately 28km upstream of the river mouth was visited. Water was overtopping the levee crest at this location, 30m away from the levee crest. This overland flow only experienced about a threefold reduction in average velocity to 0.16 m/s (in 2.2 m of water) 600m away from the levee crest. On September 4, a river bend approximately 59km upstream of the river mouth was investigated. Even though the river stage was at the National Weather Service major flood stage, the levee crest separating the river and floodplain was emergent. Regardless of this local disconnect between the river and its floodplain, substantial and variable drainage velocities were measured depending on drainage patterns controlled by local topography. Velocities measured in shallow water immediately adjacent to the emergent levee were low (< 0.05 m/s in 0.2 m of water). The highest drainage velocity ( 0.18 m/s in 1.7 m of water) associated with the upstream river-bend was measured at 750m from the channel and was similar in magnitude to those recorded for the distal inundating overland flow a day before on the downstream river-bend. Results from this work highlight the maintenance of high flow velocities across the distal floodplain even during its drainage phase. The transport of sediment, detrital organics, and solutes will be explored within the context of these overland flow velocities.

  10. Conceptual model for quantifying pre-smolt production from flow-dependent physical habitat and water temperature

    USGS Publications Warehouse

    Williamson, S. C.; Bartholow, J. M.; Stalnaker, C. B.

    1993-01-01

    A conceptual model has been developed to test river regulation concepts by linking physical habitat and water temperature with salmonid population and production in cold water streams. Work is in progress to examine numerous questions as part of flow evaluation and habitat restoration programmes in the Trinity River of California and elsewhere. For instance, how much change in pre-smolt chinook salmon (Oncorhynchus tshawytscha) production in the Trinity River would result from a different annual instream allocation (i.e. up or down from 271 × 106 m3released in the late 1980s) and how much change in pre-smolt production would result from a different release pattern (i.e. different from the 8.5 m3 s−1 year-round release). The conceptual model is being used to: design, integrate and improve young-of-year population data collection efforts; test hypotheses that physical habitat significantly influences movement, growth and mortality of salmonid fishes; and analyse the relative severity of limiting factors during each life stage. The conceptual model, in conjunction with previously developed tools in the Instream Flow Incremental Methodology, should provide the means to more effectively manage a fishery resource below a regulated reservoir and to provide positive feedback to planning of annual reservoir operations.

  11. Spillway for Benbrook Dam, Clear Fork of the Trinity River, Texas: Model Investigation

    DTIC Science & Technology

    1949-03-01

    section at tho too of tho spillway to tho trapezoidal cross section of tho exit channel. Concreto training walls 11 ft in height will confine the...embankment sections to the spillway, thus eliminating the concreto sec- tiona . This procedure would require training walls at each abutment t o protect

  12. TRADOC RAM (Reliability, Availability, Maintainability) Data Evaluation System (TRADES). Part 5. System Technical Paper.

    DTIC Science & Technology

    1982-02-05

    McCo0ne Sheridan’"-M nSdHill Silver Dow Powder River Wibaux Jefferson Stillwater The following counties in Wyoming: Judith Basin Sweet Grass Albany...Sweetwater Lassen Sonoma Johnson Teton Misalera Stanislaus Lincoln Uinta Main Sutter Park Washakie Maripoaa Tehama"Sheridan Mendocino Trinity Merced

  13. Flood on Big Fossil Creek at Haltom City near Fort Worth, Texas, in 1962

    USGS Publications Warehouse

    Montgomery, John H.; Ruggles, Frederick H.; Patterson, James Lee

    1965-01-01

    The approximate area inundated near Fort Worth, Texas, by Big Fossil Creek, during the flood of September 7, 1962, is shown on a topographic map to record the flood hazard in graphic form. Big Fossil Creek, which drains an area of 74.7 square miles, flows generally southeastward along the northeast edge of Fort Worth through Richland Hills and Haltom City, into West Fork Trinity River. The flood of September 7, 1962, the greatest in Richland Hills since at least 1900 was the result of a high rate of discharge from the area upstream from the confluence of Big Fossil Creek and Whites Branch. Greater floods are possible, but no attempt has been made to show their probable overflow limits. Future protective works may reduce the frequency of flooding in the area but will not necessarily eliminate flooding. Changes in culture such as new highways and bridges and changes in land use may influence the inundation pattern of future floods. Mapping of the West Fork Trinity River flood was beyond the scope of the Big Fossil Creek study, and is not shown.

  14. Linking habitat quality with trophic performance of steelhead along forest gradients in the South Fork Trinity River Watershed, California

    USGS Publications Warehouse

    McCarthy, Sarah G.; Duda, Jeffrey J.; Emlen, John M.; Hodgson, Garth R.; Beauchamp, David A.

    2009-01-01

    We examined invertebrate prey, fish diet, and energy assimilation in relation to habitat variation for steelhead Oncorhynchus mykiss (anadromous rainbow trout) and rainbow trout in nine low-order tributaries of the South Fork Trinity River, northern California. These streams spanned a range of environmental conditions, which allowed us to use bioenergetics modeling to determine the relative effects of forest cover, stream temperature, season, and fish age on food consumption and growth efficiency. Evidence of seasonal shifts in reliance on aquatic versus terrestrial food sources was detected among forest cover categories and fish ages, although these categories were not robust indicators of O. mykiss condition and growth efficiency. Consumption estimates were generally less than 20% of maximum consumption, and fish lost weight in some streams during summer low-flow conditions when stream temperatures exceeded 15°C. Current 100-year climate change projections for California threaten to exacerbate negative growth patterns and may undermine the productivity of this steelhead population, which is currently not listed as endangered or threatened. To demonstrate the potential effect of global warming on fish growth, we ran three climate change scenarios in two representative streams. Simulated temperature increases ranging from 1.4°C to 5.5°C during the summer and from 1.5°C to 2.9C during the winter amplified the weight loss; estimated average growth for age-1 fish was 0.4–4.5 times lower than normal (low to high estimated temperature increase) in the warm stream and 0.05–0.8 times lower in the cool stream. We conclude that feeding rate and temperature during the summer currently limit the growth and productivity of steelhead and rainbow trout in low-order streams in the South Fork Trinity River basin and predict that climate change will have detrimental effects on steelhead growth as well as on macroinvertebrate communities and stream ecosystems in general.

  15. Computational modeling of river flow using bathymetry collected with an experimental, water-penetrating, green LiDAR

    NASA Astrophysics Data System (ADS)

    Kinzel, P. J.; Legleiter, C. J.; Nelson, J. M.

    2009-12-01

    Airborne bathymetric Light Detection and Ranging (LiDAR) systems designed for coastal and marine surveys are increasingly being deployed in fluvial environments. While the adaptation of this technology to rivers and streams would appear to be straightforward, currently technical challenges remain with regard to achieving high levels of vertical accuracy and precision when mapping bathymetry in shallow fluvial settings. Collectively these mapping errors have a direct bearing on hydraulic model predictions made using these data. We compared channel surveys conducted along the Platte River, Nebraska, and the Trinity River, California, using conventional ground-based methods with those made with the hybrid topographic/bathymetric Experimental Advanced Airborne Research LiDAR (EAARL). In the turbid and braided Platte River, a bathymetric-waveform processing algorithm was shown to enhance the definition of thalweg channels over a more simplified, first-surface waveform processing algorithm. Consequently flow simulations using data processed with the shallow bathymetric algorithm resulted in improved prediction of wetted area relative to the first-surface algorithm, when compared to the wetted area in concurrent aerial imagery. However, when compared to using conventionally collected data for flow modeling, the inundation extent was over predicted with the EAARL topography due to higher bed elevations measured by the LiDAR. In the relatively clear, meandering Trinity River, bathymetric processing algorithms were capable of defining a 3 meter deep pool. However, a similar bias in depth measurement was observed, with the LiDAR measuring the elevation of the river bottom above its actual position, resulting in a predicted water surface higher than that measured by field data. This contribution addresses the challenge of making bathymetric measurements with the EAARL in different environmental conditions encountered in fluvial settings, explores technical issues related to reliably detecting the water surface and river bottom, and illustrates the impact of using LiDAR data and current processing techniques to produce above and below water topographic surfaces for hydraulic modeling and habitat applications.

  16. Our Home Forever. The Hupa Indians of Northern California. [1988 Reprint].

    ERIC Educational Resources Information Center

    Nelson, Byron, Jr.

    For thousands of years, the people of the Hupa tribe have lived in villages beside the Trinity River in a beautiful rich valley in northwestern California. Hupa culture and traditions are extensive, elaborate, and intimately bound up with their homeland. The first white men entered the valley in 1828, although coastal traders' goods had filtered…

  17. National Water-Quality Assessment program: The Trinity River Basin

    USGS Publications Warehouse

    Land, Larry F.

    1991-01-01

    In 1991, the U.S. Geological Survey (USGS) began to implement a full-scale National Water-Quality Assessment (NAWQA) program. The long-term goals of the NAWQA program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources and to provide a sound, scientific understanding of the primary natural and human factors affecting the quality of these resources. In meeting these goals, the program will produce a wealth of water-quality information that will be useful to policy makers and managers at the national, State, and local levels. A major design feature of the NAWQA program will enable water-quality information at different areal scales to be integrated. A major component of the program is study-unit investigations, which comprise the principal building blocks of the program on which national-level assessment activities will be based. The 60 study-unit investigations that make up the program are hydrologic systems that include parts of most major river basins and aquifer systems. These study units cover areas of 1,200 to more than 65,000 square miles and incorporate about 60 to 70 percent of the Nation's water use and population served by public water supply. In 1991, the Trinity River basin study was among the first 20 NAWQA study units selected for study under the full-scale implementation plan.

  18. Spatial data for Eurycea salamander habitats associated With three aquifers in south-central Texas

    USGS Publications Warehouse

    Heitmuller, Franklin T.; Reece, Brian D.

    2006-01-01

    Eurycea salamander taxa comprise 12 known species that inhabit springs and caves in south-central Texas. Many of these are threatened or endangered species, and some are found only at one location. A number of the neotenic salamanders might be at risk from habitat loss associated with declines in ground-water levels. Eurycea salamander habitats are associated with three aquifers in south-central Texas: (1) the Edwards-Trinity (Plateau) aquifer, (2) the Edwards (Balcones Fault Zone) aquifer, and (3) the Trinity aquifer. The Edwards (Balcones fault zone) aquifer is commonly separated into three segments: from southwest to northeast, the San Antonio segment, the Barton Springs segment, and the northern segment. The Trinity aquifer south of the Colorado River can be divided into three permeable zones, the upper, middle, and lower zone. The U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, developed this report (geodatabase) to aggregate the spatial data necessary to assess the potential effects of ground-water declines on known Eurycea habitat locations in south-central Texas. The geodatabase provides information about spring habitats, spring flow, cave habitats, aquifers, and projected water levels.

  19. Emergency burn rehabilitation: cost, risk, effectiveness

    Treesearch

    Scott R. Miles; Donald M. Haskins; Darrel W. Ranken

    1989-01-01

    The fires of 1987 had a heavy impact on the Hayfork Ranger District. Over 50,000 acres were burned within the South Fork Trinity River watershed, which contains an important anadromous fishery. Major problems within the burned area were found to be: (1) slopes having highly erodible soils where intense wildfire resulted in a total loss of ground cover, and (2) burnout...

  20. Environmental and Cultural Impact. Proposed Tennessee Colony Reservoir, Trinity River, Texas. Volume IV. Appendix F.

    DTIC Science & Technology

    1972-01-01

    P.R. Burke, R.A. Flowers , and J.F. Ward. Maps were drafted by W.E. Bishop and J.F. Ward. Special thanks are extended to V. Clark, M.A. McCown and S...Some common shrubs in the area are American beautyberry (Callicarpa americana) and American elder ( Sambucus canadensis). All of the above understory are

  1. 78 FR 56071 - Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Texas Golden...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-11

    ...We, the U.S. Fish and Wildlife Service (Service), designate critical habitat for two Texas plants, Leavenworthia texana (Texas golden gladecress) and Hibiscus dasycalyx (Neches River rose-mallow), under the Endangered Species Act of 1973. Critical habitat for the Texas golden gladecress is located in Sabine and San Augustine Counties, Texas, and for the Neches River rose-mallow in Nacogdoches, Houston, Trinity, Cherokee, and Harrison Counties, Texas. The effect of this regulation is to designate critical habitat for these two East Texas plants under the Endangered Species Act.

  2. Statistical, graphical, and trend summaries of selected water-quality and streamflow data from the Trinity River near Crockett, Texas, 1964-85

    USGS Publications Warehouse

    Goss, Richard L.

    1987-01-01

    As part of the statistical summaries, trend tests were conducted. Several small uptrends were detected for total nitrogen, total organic nitrogen, total ammonia nitrogen, total nitrite nitrogen, total nitrate nitrogen, total organic plus ammonia nitrogen, total nitrite plus nitrate nitrogen, and total phosphorus. Small downtrends were detected for biochemical oxygen demand and dissolved magnesium.

  3. Development of a Fish Stress Protein Antibody/Antigen-Based Approach for Biomonitoring of Water Quality.

    DTIC Science & Technology

    1993-01-25

    10 DISCUSSION ............................................... 14 FIELD TESTS OF ANTIBODY DETECTION OF HEAT SHOCK PROTEIN ACCUMULATION IN... TESTS OF ANTIBODY DETECTION OF HEAT SHOCK PROTEIN ACCUMULATION IN ASIAN CLAMS (CORBICULA FLUMINEA) INTRODUCTION The Trinity River flows through...the utility of induction of heat shock proteins as an indicator of stress in another test organism, the Asian clam (Corbicula fluminea). This organism

  4. 2D Hydrodynamic Based Logic Modeling Tool for River Restoration Decision Analysis: A Quantitative Approach to Project Prioritization

    NASA Astrophysics Data System (ADS)

    Bandrowski, D.; Lai, Y.; Bradley, N.; Gaeuman, D. A.; Murauskas, J.; Som, N. A.; Martin, A.; Goodman, D.; Alvarez, J.

    2014-12-01

    In the field of river restoration sciences there is a growing need for analytical modeling tools and quantitative processes to help identify and prioritize project sites. 2D hydraulic models have become more common in recent years and with the availability of robust data sets and computing technology, it is now possible to evaluate large river systems at the reach scale. The Trinity River Restoration Program is now analyzing a 40 mile segment of the Trinity River to determine priority and implementation sequencing for its Phase II rehabilitation projects. A comprehensive approach and quantitative tool has recently been developed to analyze this complex river system referred to as: 2D-Hydrodynamic Based Logic Modeling (2D-HBLM). This tool utilizes various hydraulic output parameters combined with biological, ecological, and physical metrics at user-defined spatial scales. These metrics and their associated algorithms are the underpinnings of the 2D-HBLM habitat module used to evaluate geomorphic characteristics, riverine processes, and habitat complexity. The habitat metrics are further integrated into a comprehensive Logic Model framework to perform statistical analyses to assess project prioritization. The Logic Model will analyze various potential project sites by evaluating connectivity using principal component methods. The 2D-HBLM tool will help inform management and decision makers by using a quantitative process to optimize desired response variables with balancing important limiting factors in determining the highest priority locations within the river corridor to implement restoration projects. Effective river restoration prioritization starts with well-crafted goals that identify the biological objectives, address underlying causes of habitat change, and recognizes that social, economic, and land use limiting factors may constrain restoration options (Bechie et. al. 2008). Applying natural resources management actions, like restoration prioritization, is essential for successful project implementation (Conroy and Peterson, 2013). Evaluating tradeoffs and examining alternatives to improve fish habitat through optimization modeling is not just a trend but rather the scientific strategy by which management needs embrace and apply in its decision framework.

  5. Wavelet analysis of lunar semidiurnal tidal influence on selected inland rivers across the globe.

    PubMed

    Briciu, Andrei-Emil

    2014-02-26

    The lunar semidiurnal influence is already known for tidal rivers. The moon also influences inland rivers at a monthly scale through precipitation. We show that, for some non-tidal rivers, with special geological conditions, the lunar semidiurnal tidal oscillation can be detected. The moon has semidiurnal tidal influence on groundwater, which will then export it to streamflow. Long time series with high frequency measurements were analysed by using standard wavelet analysis techniques. The lunar semidiurnal signal explains the daily double-peaked river level evolution of inland gauges. It is stronger where springs with high discharge occur, especially in the area of Edwards-Trinity and Great Artesian Basin aquifers and in areas with dolomite/limestone strata. The average maximum semidiurnal peaks range between 0.002 and 0.1 m. This secondary effect of the earth tides has important implications in predicting high resolution hydrographs, in the water cycle of wetlands and in water management.

  6. Vegetative Analysis of the Flookplain of the Trinity River, Texas,

    DTIC Science & Technology

    1974-09-30

    humilis var. longiflora (Gray) Fern. Ruellia Ruellia nudiflora (Gray)1*~ n_ __ Rush Juncus nodatus Coy.f Rush Juncus Torreyi Coy. Rush-foil...scurfpea Psoralea rhombifolia T. & G.J Royal fern Osmunda reai var. §pectabilis (Willd.) Gray Ruellia Ruellia caroliniensis (Walt.) Steud. Ruellia Ruellia ...o’clock Mirabilis nyctaginea (Michx.) 1 Wild indigo Baptisia Nuttalliana, SmallJ Wild onion Allium canadense L. Wild petunia Ruellia Corzoi Tharp & Barkl

  7. Environmental Study Plan for the Trinity River Basin, Texas

    DTIC Science & Technology

    1972-01-01

    with the requirements of NEPA, as specified In Sec. 102. These requirements Include the utilization of "a systematic, interdisciplinary approach which...and making updated completion projections is therefore included (Appendix F). B. Basic approach of the proposed study. The proposed study is divided...different from the customary approach utilized by many research specialists. Some of these differences are discussed below. I. The study is not intended

  8. Numerical Modeling of Trinity River Shoaling below Wallisville, Texas

    DTIC Science & Technology

    2015-02-01

    levees , the hydraulic deltaic process of finding the most efficient pathway to open water controls the flow direction and speed. Additionally, changes...events to allow flow to pass through the structures. During the dry season the structures are normally closed to control salt water intrusion. The... levees and natural ridges, which have low spots and channels that have incised from previous floods. Second, once the flood waters are outside the

  9. Changes across a decade in size, growth, and body condition of western pond turtle (Actinemys marmorata) populations on free-flowing and regulated forks of the Trinity River in Northwest California.

    Treesearch

    Donald Ashton; James Bettaso; Hart Welsh

    2015-01-01

    Water diversions can disrupt flows and alter thermal regimes changing seasonal patterns that signal the onset of life-history functions of native organisms and compromise the fitness of their populations. We compared size, growth, relative mass, volumetric body condition, and reproductive status of Western Pond Turtles (Actinemys marmorata) across...

  10. Environmental and Cultural Impact. Proposed Tennessee Colony Reservoir, Trinity River, Texas. Volume I. Summary Report.

    DTIC Science & Technology

    1972-01-01

    high populations of phytoplankton and periphyton , indi- cate excessive eutrophic conditions. Rates of primary production are comparatively high. The...species of algae in the phytoplankton and periphyton are those .commonly associated with organic pollution, and the high numbers for total coliform...uni- quely important geological areas within or adjacent to the proposed project area. Other geologically related pheno- 4 I mena and of potential

  11. Mineral resources of the Trinity River tributary area in Texas and Oklahoma

    USGS Publications Warehouse

    Weissenborn, A. E.

    1946-01-01

    In March 1945 Colonel George R. Goethels, Chief of the Civil Works Division of the Corps of Engineers, requested the Director of the Geological Survey, United States Department of the Interior, to prepare a report on the mineral resource of the area that, according to economic studies made by the Corps of Engineers, would be affected by the canalization of the Trinity River to Fort Worth. As a consequence, the staff of the Geological Survey's Regional Office in Rolla, Mo., was assigned the task of preparing the desired information. A. E. Weissenborn, acting Regional Geologist, called on Major H. R. Norman, Division Engineer of the Corps of Engineers, U. S. Army, and discussed with him the purpose, scope, and form of the proposed report. Following this discussion, Dr. John T. Lonsdale, Director of the Bureau of Economic Geology of the University of Texas, at Mr. Weissenborn's request, agreed that the Bureau of Economic Geology should participate in the preparation of the report. My. Weissenborn also called on Robert H. Dott, Director of the Oklahoma State Geological Survey at Norman, Oklahoma. The Oklahoma Geological Survey was unable to participate in writing the report, but was very helpful in supplying published and unpublished or out-of-print information on the mineral resources of Oklahoma.

  12. Population status of North American green sturgeon, Acipenser medirostris

    USGS Publications Warehouse

    Adams, P.B.; Grimes, C.; Hightower, J.E.; Lindley, S.T.; Moser, M.L.; Parsley, M.J.

    2007-01-01

    North American green sturgeon, Acipenser medirostris, was petitioned for listing under the Endangered Species Act (ESA). The two questions that need to be answered when considering an ESA listing are; (1) Is the entity a species under the ESA and if so (2) is the "species" in danger of extinction or likely to become an endangered species in the foreseeable future throughout all or a significant portion of its range? Green sturgeon genetic analyses showed strong differentiation between northern and southern populations, and therefore, the species was divided into Northern and Southern Distinct Population Segments (DPSs). The Northern DPS includes populations in the Rogue, Klamath-Trinity, and Eel rivers, while the Southern DPS only includes a single population in the Sacramento River. The principal risk factors for green sturgeon include loss of spawning habitat, harvest, and entrainment. The Northern DPS is not considered to be in danger of extinction or likely to become an endangered species in the foreseeable future. The loss of spawning habitat is not large enough to threaten this DPS, although the Eel River has been severely impacted by sedimentation due to poor land use practices and floods. The two main spawning populations in the Rogue and Klamath-Trinity rivers occupy separate basins reducing the potential for loss of the DPS through catastrophic events. Harvest has been substantially reduced and green sturgeon in this DPS do not face substantial entrainment loss. However there are significant concerns due to lack of information, flow and temperature issues, and habitat degradation. The Southern DPS is considered likely to become an endangered species in the foreseeable future. Green sturgeon in this DPS are concentrated into one spawning area outside of their natural habitat in the Sacramento River, making them vulnerable to catastrophic extinction. Green sturgeon spawning areas have been lost from the area above Shasta Dam on the Sacramento River and Oroville Dam on the Feather River. Entrainment of individuals into water diversion projects is an additional source of risk, and the large decline in numbers of green sturgeon entrained since 1986 causes additional concern. ?? 2006 Springer Science+Business Media B.V.

  13. Evaluation of water resources in part of central Texas

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Baker, B.; Duffin, G.; Flores, R.

    1990-01-01

    Water resources in the Brazos, Red, Colorado, and Trinity River basins, in central Texas, were evaluated. In 1985 there was a little less than 81,000 acre-ft of groundwater pumped from all aquifers in the study area, with a little less than 77,000 acre-ft of groundwater pumped from the Trinity Group aquifer. Irrigation accounted for about 56% of all groundwater pumped. A serious problem associated with the development of groundwater from the Trinity Group aquifer is the decline of artesian pressure in areas of large groundwater withdrawals. Degradation of groundwater within the Antlers and Travis Peak Formations from oil-field brines andmore » organic material are problems in several counties. The deterioration of water qualify for the City of Blum has occurred over a 26-year period and is associated with water level declines in the Hensell Member of the Travis Peak Formation. The Woodbine Group yields good quality water at or near the outcrop; however, the residual sodium carbonate and percent sodium limits its use for irrigation, while high iron and fluoride content restricts its use for public supply. Existing surface reservoirs in the study area alone can supply 296,400 acre-ft of water under 2010 conditions. Nearly all of this water is either currently owned or under contract to supply current and future needs. An additional 176,000 acre-ft of surface water could become available with the development of the proposed Lake Bosque and Paluxy Reservoir projects and with reallocation of storage in existing Lakes Waco and Whitney. The amount of groundwater currently pumped exceeds the estimated annual effective recharge to the Trinity Group aquifer; the groundwater supply for the area will continue to be drawn from storage within the aquifer. 84 refs., 21 figs., 3 tabs.« less

  14. Chlorophyll-a Concentrations Affected by Discharge and Climate Conditions in Galveston Bay, Texas

    NASA Astrophysics Data System (ADS)

    Shen, X.; Gao, H.; Zhang, S.

    2017-12-01

    As the transition zones between river and ocean, estuaries face increasing pressure on their ecosystem health due to changes of freshwater quantity and quality—especially under the impacts of population growth, land use/land cover change, and climate change. Located at the northeast of Houston, Galveston Bay is of particular social economic importance for the State of Texas. Its freshwater inflow primarily arises from two rivers, the San Jacinto and the Trinity. While it is well recognized that Chlorophyll a (chla) concentration—an indicator of ecosystem health—is closely linked to river inflows and other environmental factors, no quantitative relationships have been established. The objectives of this study are to identify the spatial-temporal variations of chla, and to investigate the impacts of freshwater inflow and climatic factors on chla variability—so that prediction models can be developed for chla forecasting to provide scientific support for ecological management (in Galveston Bay). A 10-year validated remote sensing dataset is used in this analysis. The results show that chla has higher concentrations near the shoreline, as compared to the center of the bay. Temporally, chla tends to be higher in wet years than in dry years. Similarly, the seasonal fluctuations of chla are more significant during the wet months (from February to May) than the dry months (especially from August to December). Chla in the bay is primarily determined by discharge from the Trinity River in AMJ (April, May, June) and JAS (July, August, September). However, the driving factor is mainly water temperature in OND (October, November, December). In JFM (January, February, March), almost all of the factors (except discharge from the San Jacinto River) show significant correlation with chla. Based on these analyses, a chla prediction model is developed and tested. This result can provide scientific support for coastal environmental management in Galveston Bay, maintaining the eco-environmental health and reducing eutrophication risk in the future.

  15. Spatio-temporal variation in bed-material load using dune topography collected during a severe flood on the coastal Trinity River, east TX, USA

    NASA Astrophysics Data System (ADS)

    Mason, J.; Mohrig, D. C.

    2015-12-01

    A series of six repeat surveys along 27 kilometers of the coastal Trinity River in east Texas, USA, reveal the temporal and spatial changes in bed material load during and following a historically large flood. The river event was above the National Weather Service flood stage for 55 days at the Liberty USGS station, and had a maximum discharge of about 80,000 cfs. As a community, we are beginning to understand how fluvial geomorphology is influenced by the backwater effect, but we still lack an understanding of how the bed-material transport adjusts to accommodate larger-scale changes in river bend pattern and kinematics. Survey data from this project includes sidescan sonar along the channel centerline, multibeam bathymetry, and channel bed sediment samples. In combination, this data set provides new insight into how and when bed material, primarily medium sand with some pebbles, moves through this region, and how this connects to previously observed changes in channel geometry (including downstream decreases in channel width to depth ratio, bar form volume and surface area, and lateral migration rates of river bends). Preliminary examination of sidescan sonar of two bends within the survey area, one upstream and one downstream, reveal a striking difference in bedform behavior in response to the changing hydrograph. Upstream, bedforms decrease 80% in height and 83% in length and increase in 3-dimensionality throughout the extended peak flow. During the falling limb of the flood these same bedforms increase in size as they become more laterally continuous and straight-crested. Downstream, 3-dimensional bedforms decrease 80% in height and 87% in length throughout the extended peak flow and then remain this size during the falling limb of the flood. This presentation will discuss these results with respect to backwater dynamics, sediment supply and transport, implications for coastal geomorphology as well as sediment delivery into deltaic systems.

  16. Simulation of streamflow and estimation of ground-water recharge in the Upper Cibolo Creek Watershed, south-central Texas, 1992-2004

    USGS Publications Warehouse

    Ockerman, Darwin J.

    2007-01-01

    A watershed model (Hydrological Simulation Program?FORTRAN) was developed, calibrated, and tested by the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, San Antonio River Authority, San Antonio Water System, and Guadalupe-Blanco River Authority, to simulate streamflow and estimate ground-water recharge in the upper Cibolo Creek watershed in south-central Texas. Rainfall, evapotranspiration, and streamflow data were collected during 1992?2004 for model calibrations and simulations. Estimates of average ground-water recharge during 1992?2004 from simulation were 79,800 acre-feet (5.47 inches) per year or about 15 percent of rainfall. Most of the recharge (about 74 percent) occurred as infiltration of streamflow in Cibolo Creek. The remaining recharge occurred as diffuse infiltration of rainfall through the soil and rock layers and karst features. Most recharge (about 77 percent) occurred in the Trinity aquifer outcrop. The remaining 23 percent occurred in the downstream part of the watershed that includes the Edwards aquifer recharge zone (outcrop). Streamflow and recharge in the study area are greatly influenced by large storms. Storms during June 1997, October 1998, and July 2002 accounted for about 11 percent of study-area rainfall, 61 percent of streamflow, and 16 percent of the total ground-water recharge during 1992?2004. Annual streamflow and recharge also were highly variable. During 1999, a dry year with about 16 inches of rain and no measurable runoff at the watershed outlet, recharge in the watershed amounted to only 0.99 inch compared with 13.43 inches during 1992, a relatively wet year with about 54 inches of rainfall. Simulation of flood-control/recharge-enhancement structures showed that certain structures might reduce flood peaks and increase recharge. Simulation of individual structures on tributaries showed relatively little effect. Larger structures on the main stem of Cibolo Creek were more effective than structures on tributaries, both in terms of flood-peak reduction and recharge enhancement. One simulated scenario that incorporated two main-stem structures resulted in a 37-percent reduction of peak flow at the watershed outlet and increases in stream-channel recharge of 6.6 percent in the Trinity aquifer outcrop and 12.6 percent in the Edwards aquifer (recharge zone) outcrop.

  17. Environmental and Cultural Impact. Proposed Tennessee Colony Reservoir, Trinity River, Texas. Volume III. Appendices D and E.

    DTIC Science & Technology

    1972-01-01

    daily dissolved oxygen concentration above 5 mg/l, assuming there are normal seasonal and daily variations above this concentration, (2) dissovled oxygen ... Oxygen Concentrations: Surface oxygen determinations were made at each col- lecting station at monthly intervals. Determinations were done using a...Yellow Springs Oxygen Analyzer Model 54. G. Phosphorus and nitrogen determinations : Water samples for chemical analysis were collected at the surface

  18. After the First Full Moon in April: A Sourcebook of Herbal Medicine from a California Indian Elder [Book Review

    Treesearch

    Frank K. Lake

    2013-01-01

    Josephine “Jo” Grant Peters was an Native American herbalist of mixed tribal ancestry (Karuk/Shasta/ Abenaki) who was raised and lived in Northwestern California along the Salmon, Klamath, and Trinity rivers. She was a woman with an exceptional knowledge of native and non-native plants, and of the many cultural traditions for management, harvesting, preparation, and...

  19. A guide to selected non-timber forest products of the Hayfork Adaptive Management Area, Shasta-Trinity and Six Rivers National Forests, California

    Treesearch

    Yvonne Everett

    1997-01-01

    Demand for non-timber forest products (NTFPs) is increasing, and growing numbers of people are enhancing their incomes by harvesting NTFPs from the wild. If forest ecosystems are to continue to produce NTFPs in the long run, harvesters must learn how to gather them in ways that minimize harvest damage to woods and wildlife. This guide, developed in a collaborative,...

  20. Public Use Land Requirements, Tennessee Colony Lake.

    DTIC Science & Technology

    1972-03-30

    source of pollution by oil and oil field brines. If these and existing gas fields continue to operate, oil -pumping and storage stations and oil and gas ...the lake and large numbers can be expected to visit this area. The land is in the middle of the Cayuga oil field and there are many oil and gas ...Project Area Geographic boundary and physiographic classification The Trinity River meanders south- southeast through Freestone, Anderson, Navarro and

  1. A conceptual model of the hydrogeologic framework, geochemistry, and groundwater-flow system of the Edwards-Trinity and related aquifers in the Pecos County region, Texas

    USGS Publications Warehouse

    Bumgarner, Johnathan R.; Stanton, Gregory P.; Teeple, Andrew; Thomas, Jonathan V.; Houston, Natalie A.; Payne, Jason; Musgrove, MaryLynn

    2012-01-01

    A conceptual model of the hydrogeologic framework, geochemistry, and groundwater-flow system of the Edwards-Trinity and related aquifers, which include the Pecos Valley, Igneous, Dockum, Rustler, and Capitan Reef aquifers, was developed as the second phase of a groundwater availability study in the Pecos County region in west Texas. The first phase of the study was to collect and compile groundwater, surface-water, water-quality, geophysical, and geologic data in the area. The third phase of the study involves a numerical groundwater-flow model of the Edwards-Trinity aquifer in order to simulate groundwater conditions based on various groundwater-withdrawal scenarios. Resource managers plan to use the results of the study to establish management strategies for the groundwater system. The hydrogeologic framework is composed of the hydrostratigraphy, structural features, and hydraulic properties of the groundwater system. Well and geophysical logs were interpreted to define the top and base surfaces of the Edwards-Trinity aquifer units. Elevations of the top and base of the Edwards-Trinity aquifer generally decrease from the southwestern part of the study area to the northeast. The thicknesses of the Edwards-Trinity aquifer units were calculated using the interpolated top and base surfaces of the hydrostratigraphic units. Some of the thinnest sections of the aquifer were in the eastern part of the study area and some of the thickest sections were in the Pecos, Monument Draw, and Belding-Coyanosa trough areas. Normal-fault zones, which formed as growth and collapse features as sediments were deposited along the margins of more resistant rocks and as overlying sediments collapsed into the voids created by the dissolution of Permian-age evaporite deposits, were delineated based on the interpretation of hydrostratigraphic cross sections. The lowest aquifer transmissivity values were measured in the eastern part of the study area; the highest transmissivity values were measured in a faulted area of the Monument Draw trough. Hydraulic conductivity values generally exhibited the same trends as the transmissivity values. Groundwater-quality data and groundwater-level data were used in context with the hydrogeologic framework to assess the chemical characteristics of water from different sources, regional groundwater-flow paths, recharge sources, the mixing of water from different sources, and discharge in the study area. Groundwater-level altitudes generally decrease from southwest to northeast and regional groundwater flow is from areas of recharge south and west to the north and northeast. Four principal sources of recharge to the Edwards-Trinity aquifer were identified: (1) regional flow that originated as recharge northwest of the study area, (2) runoff from the Barilla, Davis, and Glass Mountains, (3) return flow from irrigation, and (4) upwelling from deeper aquifers. Results indicated Edwards-Trinity aquifer water in the study area was dominated by mineralized, regional groundwater flow that most likely recharged during the cooler, wetter climates of the Pleistocene with variable contributions of recent, local recharge. Groundwater generally flows into the down-dip extent of the Edwards-Trinity aquifer where it discharges into overlying or underlying aquifer units, discharges from springs, discharges to the Pecos River, follows a regional flow path east out of the study area, or is withdrawn by groundwater wells. Structural features such as mountains, troughs, and faults play a substantial role in the distribution of recharge, local and regional groundwater flow, spring discharge, and aquifer interaction.

  2. 75 FR 47631 - Trinity Tank Car, Inc., a Subsidiary of Trinity Industries, Inc., Plants #19, 1200, 1017, 1110...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-06

    ... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-72,065] Trinity Tank Car, Inc., a... workers of Trinity Tank Car, Inc., Plant 19, Longview, Texas. The notice was published in the Federal... findings, the Department is amending this certification to also include workers from Trinity Tank Car, Inc...

  3. Compilation of hydrologic data, Little Elm Creek, Trinity River basin, Texas, 1968

    USGS Publications Warehouse

    ,

    1972-01-01

    The U.S. Soil Conservation Service is actively engaged in the installation of flood and soil erosion reducing measures in Texas under the authority of "The Flood Control Act ot 1936 and 1944" and ''Watershed Protection and Flood Prevention Act" (Public Law 566), as amended. In June 1968, the Soil Conservation Service estimated approximately 3,500 structures to be physically and economically feasible for installation in Texas. As of September 30, 1968, 1,271 of these structures had been built. This watershed-development program will have varying but important effects on the surface- and ground-water resources of river basins, especially where a large number of the floodwater-retarding structures are built. Basic hydrologic data are needed to appraise the effects of the structures on water yield and the mode of occurrence of runoff. Hydrologic investigations of these small watersheds were begun by the Geological Survey in 1951 and are now being made in 11 areas (fig. 1). These studies are being made in cooperation with t he Texas Water Development Board, the Soil Conservation Service, the San Antonio River Authority, the city of Dallas, and the Tarrant County Water Control and Improvement District No. 1. The 11 study areas were choson to sample watersheds having different rainfall, topography, geology, and soils. In four of the study areas (Mukewater, North, Little Elm, and Pin Oak Creeks), streamflow and rainfall records were collected prior to construction of the floodwater-retarding structures, thus affording the opportunity for analyses to the conditions before and after" development. Structures have now been built in three of these study areas. A summary of the development of the floodwater-retarding structures on each study area as of September 30, 1968, is shown in table 1.

  4. Wavelet analysis of lunar semidiurnal tidal influence on selected inland rivers across the globe

    PubMed Central

    Briciu, Andrei-Emil

    2014-01-01

    The lunar semidiurnal influence is already known for tidal rivers. The moon also influences inland rivers at a monthly scale through precipitation. We show that, for some non-tidal rivers, with special geological conditions, the lunar semidiurnal tidal oscillation can be detected. The moon has semidiurnal tidal influence on groundwater, which will then export it to streamflow. Long time series with high frequency measurements were analysed by using standard wavelet analysis techniques. The lunar semidiurnal signal explains the daily double-peaked river level evolution of inland gauges. It is stronger where springs with high discharge occur, especially in the area of Edwards-Trinity and Great Artesian Basin aquifers and in areas with dolomite/limestone strata. The average maximum semidiurnal peaks range between 0.002 and 0.1 m. This secondary effect of the earth tides has important implications in predicting high resolution hydrographs, in the water cycle of wetlands and in water management. PMID:24569793

  5. Fermi, Szilard and Trinity

    ERIC Educational Resources Information Center

    Anderson, Herbert L.

    1974-01-01

    The final installment of the author's recollections of his work with physicists Enrico Fermi, Leo Szilard and others in developing the first controlled nuclear chain reaction and in preparing the test explosion of the first atomic bomb. (GS)

  6. 77 FR 46682 - Trinity County Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-06

    ... Rural Schools one-year extension to the 2008-2011 RAC authorization, and recruitment of new RAC..., overview of one-year extension, and new RAC committee member recruitment. An agenda of the meeting is also...

  7. A Survey of the Environmental and Cultural Resources of the Trinity River.

    DTIC Science & Technology

    1972-09-01

    land is rich and well adapted to the cultivation of sugar, cotton, or corn, and affords an unbounded range for cattle. Sixty miles from the bay, on...consist mainly of vertebrate remains and some invertebrate species of pulmonate gastropods , fresh water pelecypods and ostra- cods which were deposited...90. LIST OF REFERENCES Bray, W. L. 1906. Distribution and adaptation of the vegetation of Texas. University of Texas Bull., 82. Braun, E. L. 1950

  8. Use of the routing procedure to study dye and gas transport in the West Fork Trinity River, Texas

    USGS Publications Warehouse

    Jobson, Harvey E.; Rathbun, R.E.

    1984-01-01

    Rhodamine-WT dye, ethylene, and propane were injected at three sites along a 21.6-kilometer reach of the West Fork Trinity River below Fort Worth, Texas. Complete dye concentration versus time curves and peak gas concentrations were measured at three cross sections below each injection. The peak dye concentrations were located and samples were collected at about three-hour intervals for as many as six additional cross sections. These data were analyzed to determine the longitudinal dispersion coefficients as well as the gas desorption coefficients using both standard techniques and a numerical routing procedure. The routing procedure, using a Lagrangian transport model to minimize numerical dispersion, provided better estimates of the dispersion coefficient than did the method of moments. At a steady flow of about 0.76 m2/s, the dispersion coefficient varied from about 0.7 m2/s in a reach contained within a single deep pool to about 2.0 m2/s in a reach containing riffles and small pools. The bulk desorption coefficients computed using the routing procedure and the standard peak method were essentially the same. The liquid film coefficient could also be obtained using the routing procedure. Both the bulk desorption coefficient and the liquid film coefficient were much smaller in the pooled reach than in the reaches containing riffles.

  9. Predicting fractional bed load transport rates: Application of the Wilcock‐Crowe equations to a regulated gravel bed river

    USGS Publications Warehouse

    Gaeuman, David; Andrews, E.D.; Krause, Andreas; Smith, Wes

    2009-01-01

    Bed load samples from four locations in the Trinity River of northern California are analyzed to evaluate the performance of the Wilcock‐Crowe bed load transport equations for predicting fractional bed load transport rates. Bed surface particles become smaller and the fraction of sand on the bed increases with distance downstream from Lewiston Dam. The dimensionless reference shear stress for the mean bed particle size (τ*rm) is largest near the dam, but varies relatively little between the more downstream locations. The relation between τ*rm and the reference shear stresses for other size fractions is constant across all locations. Total bed load transport rates predicted with the Wilcock‐Crowe equations are within a factor of 2 of sampled transport rates for 68% of all samples. The Wilcock‐Crowe equations nonetheless consistently under‐predict the transport of particles larger than 128 mm, frequently by more than an order of magnitude. Accurate prediction of the transport rates of the largest particles is important for models in which the evolution of the surface grain size distribution determines subsequent bed load transport rates. Values of τ*rm estimated from bed load samples are up to 50% larger than those predicted with the Wilcock‐Crowe equations, and sampled bed load transport approximates equal mobility across a wider range of grain sizes than is implied by the equations. Modifications to the Wilcock‐Crowe equation for determining τ*rm and the hiding function used to scale τ*rm to other grain size fractions are proposed to achieve the best fit to observed bed load transport in the Trinity River.

  10. Processing and evaluation of riverine waveforms acquired by an experimental bathymetric LiDAR

    NASA Astrophysics Data System (ADS)

    Kinzel, P. J.; Legleiter, C. J.; Nelson, J. M.

    2010-12-01

    Accurate mapping of fluvial environments with airborne bathymetric LiDAR is challenged not only by environmental characteristics but also the development and application of software routines to post-process the recorded laser waveforms. During a bathymetric LiDAR survey, the transmission of the green-wavelength laser pulses through the water column is influenced by a number of factors including turbidity, the presence of organic material, and the reflectivity of the streambed. For backscattered laser pulses returned from the river bottom and digitized by the LiDAR detector, post-processing software is needed to interpret and identify distinct inflections in the reflected waveform. Relevant features of this energy signal include the air-water interface, volume reflection from the water column itself, and, ideally, a strong return from the bottom. We discuss our efforts to acquire, analyze, and interpret riverine surveys using the USGS Experimental Advanced Airborne Research LiDAR (EAARL) in a variety of fluvial environments. Initial processing of data collected in the Trinity River, California, using the EAARL Airborne Lidar Processing Software (ALPS) highlighted the difficulty of retrieving a distinct bottom signal in deep pools. Examination of laser waveforms from these pools indicated that weak bottom reflections were often neglected by a trailing edge algorithm used by ALPS to process shallow riverine waveforms. For the Trinity waveforms, this algorithm had a tendency to identify earlier inflections as the bottom, resulting in a shallow bias. Similarly, an EAARL survey along the upper Colorado River, Colorado, also revealed the inadequacy of the trailing edge algorithm for detecting weak bottom reflections. We developed an alternative waveform processing routine by exporting digitized laser waveforms from ALPS, computing the local extrema, and fitting Gaussian curves to the convolved backscatter. Our field data indicate that these techniques improved the definition of pool areas dominated by weak bottom reflections. These processing techniques are also being tested for EAARL surveys collected along the Platte and Klamath Rivers where environmental conditions have resulted in suppressed or convolved bottom reflections.

  11. Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within northern Bexar and Comal Counties, Texas

    USGS Publications Warehouse

    Clark, Allan K.; Golab, James A.; Morris, Robert R.

    2016-11-28

    During 2014–16, the U.S. Geological Survey, in cooperation with the Edwards Aquifer Authority, documented the geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within northern Bexar and Comal Counties, Texas. The Edwards and Trinity aquifers are major sources of water for agriculture, industry, and urban and rural communities in south-central Texas. Both the Edwards and Trinity are classified as major aquifers by the State of Texas.The purpose of this report is to present the geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within northern Bexar and Comal Counties, Tex. The report includes a detailed 1:24,000-scale hydrostratigraphic map, names, and descriptions of the geology and hydrostratigraphic units (HSUs) in the study area.The scope of the report is focused on geologic framework and hydrostratigraphy of the outcrops and hydrostratigraphy of the Edwards and Trinity aquifers within northern Bexar and Comal Counties, Tex. In addition, parts of the adjacent upper confining unit to the Edwards aquifer are included.The study area, approximately 866 square miles, is within the outcrops of the Edwards and Trinity aquifers and overlying confining units (Washita, Eagle Ford, Austin, and Taylor Groups) in northern Bexar and Comal Counties, Tex. The rocks within the study area are sedimentary and range in age from Early to Late Cretaceous. The Miocene-age Balcones fault zone is the primary structural feature within the study area. The fault zone is an extensional system of faults that generally trends southwest to northeast in south-central Texas. The faults have normal throw, are en echelon, and are mostly downthrown to the southeast.The Early Cretaceous Edwards Group rocks were deposited in an open marine to supratidal flats environment during two marine transgressions. The Edwards Group is composed of the Kainer and Person Formations. Following tectonic uplift, subaerial exposure, and erosion near the end of Early Cretaceous time, the area of present-day south-central Texas was again submerged during the Late Cretaceous by a marine transgression resulting in deposition of the Georgetown Formation of the Washita Group.The Early Cretaceous Edwards Group, which overlies the Trinity Group, is composed of mudstone to boundstone, dolomitic limestone, argillaceous limestone, evaporite, shale, and chert. The Kainer Formation is subdivided into (bottom to top) the basal nodular, dolomitic, Kirschberg Evaporite, and grainstone members. The Person Formation is subdivided into (bottom to top) the regional dense, leached and collapsed (undivided), and cyclic and marine (undivided) members.Hydrostratigraphically the rocks exposed in the study area represent a section of the upper confining unit to the Edwards aquifer, the Edwards aquifer, the upper zone of the Trinity aquifer, and the middle zone of the Trinity aquifer. The Pecan Gap Formation (Taylor Group), Austin Group, Eagle Ford Group, Buda Limestone, and Del Rio Clay are generally considered to be the upper confining unit to the Edwards aquifer.The Edwards aquifer was subdivided into HSUs I to VIII. The Georgetown Formation of the Washita Group contains HSU I. The Person Formation of the Edwards Group contains HSUs II (cyclic and marine members [Kpcm], undivided), III (leached and collapsed members [Kplc,] undivided), and IV (regional dense member [Kprd]), and the Kainer Formation of the Edwards Group contains HSUs V (grainstone member [Kkg]), VI (Kirschberg Evaporite Member [Kkke]), VII (dolomitic member [Kkd]), and VIII (basal nodular member [Kkbn]).The Trinity aquifer is separated into upper, middle, and lower aquifer units (hereinafter referred to as “zones”). The upper zone of the Trinity aquifer is in the upper member of the Glen Rose Limestone. The middle zone of the Trinity aquifer is formed in the lower member of the Glen Rose Limestone, Hensell Sand, and Cow Creek Limestone. The regionally extensive Hammett Shale forms a confining unit between the middle and lower zones of the Trinity aquifer. The lower zone of the Trinity aquifer consists of the Sligo and Hosston Formations, which do not crop out in the study area.The upper zone of the Trinity aquifer is subdivided into five informal HSUs (top to bottom): cavernous, Camp Bullis, upper evaporite, fossiliferous, and lower evaporite. The middle zone of the Trinity aquifer is composed of the (top to bottom) Bulverde, Little Blanco, Twin Sisters, Doeppenschmidt, Rust, Honey Creek, Hensell, and Cow Creek HSUs. The underlying Hammett HSU is a regional confining unit between the middle and lower zones of the Trinity aquifer. The lower zone of the Trinity aquifer is not exposed in the study area.Groundwater recharge and flow paths in the study area are influenced not only by the hydrostratigraphic characteristics of the individual HSUs but also by faults and fractures and geologic structure. Faulting associated with the Balcones fault zone (1) might affect groundwater flow paths by forming a barrier to flow that results in water moving parallel to the fault plane, (2) might affect groundwater flow paths by increasing flow across the fault because of fracturing and juxtaposing porous and permeable units, or (3) might have no effect on the groundwater flow paths.The hydrologic connection between the Edwards and Trinity aquifers and the various HSUs is complex. The complexity of the aquifer system is a combination of the original depositional history, bioturbation, primary and secondary porosity, diagenesis, and fracturing of the area from faulting. All of these factors have resulted in development of modified porosity, permeability, and transmissivity within and between the aquifers. Faulting produced highly fractured areas that have allowed for rapid infiltration of water and subsequently formed solutionally enhanced fractures, bedding planes, channels, and caves that are highly permeable and transmissive. The juxtaposition resulting from faulting has resulted in areas of interconnectedness between the Edwards and Trinity aquifers and the various HSUs that form the aquifers.

  12. Environmental and Cultural Impact. Proposed Tennessee Colony Reservoir, Trinity River, Texas. Volume II. Appendices A, B and C.

    DTIC Science & Technology

    1972-01-01

    in a considerable increase in the water salinity . Density stratification of the water is possible, the denser saline water forming the lower water...layer in the lake basin which causes anaerobic, toxic conditions. Salinity causes also an increase in flocculation and sedi- mentation of clay minerals...increased salin - ity of the lake water. Excessive water seepage in the fault zone intersecting the northern most part of the reservoir will probably

  13. Central and North Gulf Coast, Texas

    NASA Technical Reports Server (NTRS)

    1992-01-01

    In this view of the central and north Gulf Coast of Texas (30.0N, 96.0W), San Antonio Bay, Matagorda Bay and Galveston/Trinity Bay are clearly seen though small sediment plumes at the tidal passes are visible. The large field patterns of irrigated agriculture highlights an ancient deltaic plain formed by the Colorado and Brazos Rivers. Many manmade lakes and reservoirs, as far west as Lake Belton and Lake Waco and as far east as Toledo Bend are visible.

  14. Environmental Impact Study of the Elm Fork Region of the Trinity River.

    DTIC Science & Technology

    1972-04-14

    uninterruptedly for two to four years would be re- quired. Especially in the latter two realms it is essential to compare annual data for several years in order to...site (Crook, 1952; Crook and Harris, 1953) located in the northeastern part of the sur- veyed area. The Wheeler site essentially has been destroyed...quarrying of raw mate- rial including quartzite and chert. These sites may be of any age for these resources were continually used. 18 oil 031 12 ELM FORK

  15. Environmental and Cultural Impact Proposed Tennessee Colony Reservoir, Trinity River, Texas. Volume V. Appendix G.

    DTIC Science & Technology

    1972-01-01

    allocation. Pri- marily it is concerned with any land use that increases surface water runoff and soil compaction, two phenomena that decrease recharge... runoff . Forested filter strips between range and reser- voir boundary should be developed as a land use for water quality control and quail habitat. High...shown on Plates G-10 and G-11) some measures will also be necessary to prevent fertilizer pollution of the reservoir from excessive surface runoff . G

  16. Investigating Vertical Mixing Between Two Carbonate Aquifers Using a Multiport Well, Central Texas

    NASA Astrophysics Data System (ADS)

    Kromann, J.; Wong, C. I.; Hunt, B.; Smith, B.; Banner, J. L.

    2011-12-01

    Determining the occurrence and extent of mixing between vertically-adjacent aquifers is critical to dual-aquifer management. This can be challenging due to variable well depths and uncertainty as to hydrostratigraphic sources of groundwater. This study uses a multiport monitor well to investigate the degree of aquifer mixing between the overlying Edwards aquifer and underlying Trinity aquifer in central Texas. The results will inform dual-aquifer management as the Trinity aquifer is being developed as an alternative water source to the Edwards aquifer due to pumping limits and projections of increasing water demand. Water levels from isolated hydrostratigraphic units (n = 19) were measured monthly in the well as climate conditions transitioned from wet to dry (Sept 2010 to May 2011). Groundwater was sampled over a two-week interval in May to June 2011. At the start of the monitoring interval, water levels were high in the Edwards and the uppermost units of the Trinity relative to the rest of the Trinity units. Water levels decreased to lower elevations, from about 635 to 585 ft-msl, under dry conditions. Water levels in the lowermost Trinity declined less, from about 630 to 620 ft-msl, under dry conditions. Two zones separating the Edwards and lowermost Trinity showed almost no head change during this period. The water-level variations between the two aquifers suggest that: i) vertical flow potential from the Edwards to the Trinity occurs during dry conditions, ii) the uppermost stratigraphic units of the Trinity and Edwards are mixing, and iii) portions of the Trinity behave as an aquitard, providing hydrologic separation between the Edwards and lowermost Trinity units. Groundwater samples indicate the presence of three distinct hydrochemical facies: Ca-HCO3 (Edwards), Ca-HCO3-SO4 (lowermost Trinity), and Ca-SO4 (Trinity-Glen Rose Fm), suggesting little vertical flow and mixing. Covariation between groundwater 87Sr/86Sr values and SO4 concentrations from units of the Edwards and lowermost Trinity units can be accounted for by a two-end-member fluid mixing model, which uses a unit from the Edwards and lowermost Trinity as end members. This may indicate that 87Sr/86Sr values and SO4 concentrations are controlled by varying extents of mixing between the two units. Groundwater from units in the Glen Rose Formation (between the Edwards and lowermost Trinity units) cannot be accounted for by this mixing process due to elevated SO4 concentrations likely associated with dissolution of evaporites. 87Sr/86Sr values of evaporites recovered from the well are consistent with 87Sr/86Sr values of groundwater from these Glen Rose units. Although the geochemical model results suggest possible mixing between the Edwards and Trinity aquifers, water-level variations and the presence of distinct hydrochemical facies indicate that vertical flow between the Edwards and Trinity is limited to the uppermost units of the Trinity. This study suggests that the Edwards aquifer and lowermost Trinity units are not likely in hydrologic communication and independent management may be possible.

  17. Status Report of Environmental Evaluations Trinity River Project Texas. Appendix B. Biological Inventory with Effect Evaluation

    DTIC Science & Technology

    1975-06-01

    wet depressions and sloughs present on the floodplain; heavy black clay soil ; no Spanish moss. Transect No. 4 Location: Henderson County, Bruce Smith...cattle except when too wet; sticky black clay soil ; the transect parallels the river for most of its length, touching the bank at one point. Transect No. 5...4 414 4 4-4. ’ 41-M na USC CA’ 0 nS : N41~ rmO O n4o 1 0’O 1* CC M 0 0a V)S Lj LA LJ USL . a) W WUS >5 0 C) i C n -0- ’D ’A a) __ fig- C tn ’a 0 O

  18. Geohydrologic units of the Gulf Coastal Plain in Arkansas

    USGS Publications Warehouse

    Petersen, J.C.; Broom, M.E.; Bush, W.V.

    1985-01-01

    This report describes geohydrologic units of the Jurassic, Cretaceous, Tertiary and Quaternary Systems and of the Paleozoic Era in the Gulf Coastal Plain in Arkansas. Structure contour maps on top of the Paleozoic rocks, Trinity Group, Tokio Formation, Nacatoch Sand, Midway Group, Wilcox Group, Carrizo Sand, Cane River Formation. Sparta Sand, and the Memphis Sand are included. Thickness maps of the Wilcox Group, Carrizo Sand, Cane River Formation, Sparta Sand, and the Memphis Sand and maps showing lines of equal dissolved-solids concentrations of the Nacatoch Sand, Wilcox Group, Carrizo Sand, Cane River Formation, and Sparta Sand are also included. The dissolved-solids maps are at about a 1:2 million scale. All other maps are at a 1:1 million scale. Brief descriptions of the geohydrologic units mentioned above and of the Cook Mountain and Cockfield Formations and the Jackson Group are also included. (USGS)

  19. Geologic framework and hydrogeologic characteristics of the outcrops of the Edwards and Trinity aquifers, Medina Lake area, Texas

    USGS Publications Warehouse

    Small, Ted A.; Lambert, Rebecca B.

    1998-01-01

    The Trinity aquifer, which crops out in the northern part of the Medina Lake area and underlies the Edwards aquifer in the southern part, is much less permeable and productive than the Edwards aquifer. Where the Trinity aquifer underlies the Edwards, the Trinity acts as a lower confining unit on the Edwards.

  20. Trends in the suspended-sediment yields of coastal rivers of northern California, 1955–2010

    USGS Publications Warehouse

    Warrick, J.A.; Madej, Mary Ann; Goñi, M. A.; Wheatcroft, R.A.

    2013-01-01

    Time-dependencies of suspended-sediment discharge from six coastal watersheds of northern California – Smith River, Klamath River, Trinity River, Redwood Creek, Mad River, and Eel River – were evaluated using monitoring data from 1955 to 2010. Suspended-sediment concentrations revealed time-dependent hysteresis and multi-year trends. The multi-year trends had two primary patterns relative to river discharge: (i) increases in concentration resulting from both land clearing from logging and the flood of record during December 1964 (water year 1965), and (ii) continual decreases in concentration during the decades following this flood. Data from the Eel River revealed that changes in suspended-sediment concentrations occurred for all grain-size fractions, but were most pronounced for the sand fraction. Because of these changes, the use of bulk discharge-concentration relationships (i.e., “sediment rating curves”) without time-dependencies in these relationships resulted in substantial errors in sediment load estimates, including 2.5-fold over-prediction of Eel River sediment loads since 1979. We conclude that sediment discharge and sediment discharge relationships (such as sediment rating curves) from these coastal rivers have varied substantially with time in response to land use and climate. Thus, the use of historical river sediment data and sediment rating curves without considerations for time-dependent trends may result in significant errors in sediment yield estimates from the globally-important steep, small watersheds.

  1. Development of a geodatabase for springs within and surrounding outcrops of the Trinity aquifer in northern Bexar County, Texas, 2010-11

    USGS Publications Warehouse

    Clark, Allan K.; Pedraza, Diane E.

    2013-01-01

    Data for 141 springs within and surrounding the Trinity aquifer outcrops in northern Bexar County were compiled from existing reports and databases. These data were augmented with selected data collected onsite, including the location, discharge, and water-quality characteristics of selected springs, and were entered into the geodatabase. The Trinity aquifer in central Texas is commonly divided into the upper, middle, and lower Trinity aquifers; all of the information that was compiled pertaining to the aquifer is for the upper and middle Trinity aquifers.

  2. The Holy Trinity of Methodological Rigor: A Skeptical View

    ERIC Educational Resources Information Center

    Coryn, Chris L. S.

    2007-01-01

    The author discusses validation hierarchies grounded in the tradition of quantitative research that generally consists of the criteria of validity, reliability and objectivity and compares this with similar criteria developed by the qualitative tradition, described as trustworthiness, dependability and confirmability. Although these quantitative…

  3. Trinity River Bottom Sediment Reconnaissance Study. Phase I. Plan of Work. Appendices,

    DTIC Science & Technology

    1976-11-30

    chromium , cobalt, copper, mercury, molybdepum, nickel and silver. 2. Summary of Metl od 2.1 Arsenic in the sample is first reduced to the trivalent form...a. Arsenic 1. Selenium B-3 b. Barium m. Silver c. Boron n. Zinc d. Cadmium o. Total phosphate e. Copper p. Chemical oxygen demand f. Chromium (total...78.00 3. Boron 0.72 4. Cadmium 1.20 5. Copper 15.50 6. Chromium 14.20 " 7. Lead 323.00 8. Manganese 301.00 9. Mercury 21.00 10. Nickel 13.30 " 11

  4. Campus Communications in the Age of Crises

    ERIC Educational Resources Information Center

    McGuire, Patricia

    2007-01-01

    Recent catastrophes have brought about numerous critiques and changes to campus communications. In this article, the author shares the lessons she has learned from the crises she experienced during her 18 years of being the president of Trinity (Washington) University. Furthermore, Joan Hinde Stewart, president of Hamilton College, adds her…

  5. Guide to the Logan Pearsall Smith Collection.

    ERIC Educational Resources Information Center

    Pettit, Katherine Denshaw

    A guide to the Logan Pearsall Smith Collection at Trinity University Elizabeth Coates Maddux Library in San Antonio, Texas provides a descriptive overview of the collected works of this renowned epigrammatist, critic, essayist, biographer, and authority on the English language. The guide includes a brief biography of Smith (1865-1946), detailed…

  6. Tangible Evidence in Marketing a Service: The Value of a Campus Visit in Choosing a College.

    ERIC Educational Resources Information Center

    Yost, Michael, Jr.; Tucker, Stephen L.

    1995-01-01

    A Trinity University (Texas) study identified a strong correlation between campus visits by admitted applicants and the proportion of admitted applicants who matriculated there. It is suggested that college marketing strategists consider the important role of this sales promotion device. (Author/MSE)

  7. Water-quality assessment of the Trinity River Basin, Texas - Nutrients in streams draining an agricultural and an urban area, 1993-95

    USGS Publications Warehouse

    Land, Larry F.; Shipp, Allison A.

    1996-01-01

    Water samples collected from streams draining an agricultural area in the west-central part of the Trinity River Basin upstream from the Richland-Chambers Reservoir and from streams draining an urban area in the Dallas-Fort Worth metropolitan area during March 1993 - September 1995 were analyzed for nutrients (nitrogen and phosphorus compounds). A comparison of the data for agricultural and urban streams shows the maximum concentration of total nitrogen is from an urban stream and the maximum concentration of total phosphorus is from an agricultural stream. One-half of the samples have total nitrogen concentrations equal to or less than 1.1 and 1.0 milligrams per liter in the agricultural and urban streams, respectively; and one-half of the samples have total phosphorous concentrations equal to or less than 0.04 and 0.05 milligram per liter in the agricultural and urban streams, respectively. The highest concentrations of total nitrogen in both types of streams are in the spring. The minimum concentrations of total nitrogen are during the summer in the agricultural streams and during the winter in the urban streams. Concentrations of total phosphorus in agricultural streams show negligible seasonal variability. The highest concentrations of total phosphorus are in spring and possibly late summer in the urban streams. In the midrange of streamflow in the urban streams and throughout the range of streamflow in the agricultural streams, concentrations of total nitrogen increase. Concentrations of total phosphorus increase with streamflow in the middle and upper ranges of streamflow in both agricultural and urban streams.

  8. Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape

    USGS Publications Warehouse

    Welsh, H.H.; Hodgson, G.R.; Duda, J.J.; Emlen, J.M.

    2010-01-01

    Headwaters can represent 80% of stream kilometers in a watershed, and they also have unique physical and biological properties that have only recently been recognized for their importance in sustaining healthy functioning stream networks and their ecological services. We sampled 60 headwater tributaries in the South Fork Trinity River, a 2,430 km2, mostly forested, multiple-use watershed in northwestern California. Our objectives were: (1) to differentiate unique headwater types using 69 abiotic and vegetation variables measured at three spatial scales, and then to reduce these to informative subsets; (2) determine if distinct biota occupied the different tributary types; (3) determine the environmental attributes associated with the presence and abundance of these biotic assemblages; and (4) using niche modeling, determine key attribute thresholds to illustrate how these biota could be employed as metrics of system integrity and ecological services. Several taxa were sufficiently abundant and widespread to use as bio-indicators: the presence and abundance of steelhead trout (Oncorhynchus mykiss), herpetofauna (reptile and amphibian) species richness, and signal crayfish (Pacifastacus leniusculus) represented different trophic positions, value as commercial resources (steelhead), sensitivity to environmental stress (amphibians), and indicators of biodiversity (herpetofauna species richness). Herpetofauna species richness did not differ, but abundances of steelhead trout, signal crayfish, and amphibian richness all differed significantly among tributary types. Niche models indicated that distribution and abundance patterns in both riparian and aquatic environments were associated with physical and structural attributes at multiple spatial scales, both within and around reaches. The bio-indicators responded to unique sets of attributes, reflecting the high environmental heterogeneity in headwater tributaries across this large watershed. These niche attributes represented a wide range of headwater environments, indicating responses to a number of natural and anthropogenic conditions, and demonstrated the value of using a suite of bio-indicators to elucidate watershed conditions, and to examine numerous disturbances that may influence ecological integrity.

  9. Simulations of flow in the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas

    USGS Publications Warehouse

    Kuniansky, E.L.; Holligan, K.Q.

    1994-01-01

    The transmissivity values used in the simulations were within estimated ranges and generally are: 1,000 to 10,000 ft2/d (feet squared per day) for the Edwards-Trinity and Trinity aquifers; 100,000 to greater than 1 million ft2/d for the Edwards aquifer; and less than 500 to 10,000 ft2/d in contiguous hydraulically connected units. Simulated flow through the Edwards-Trinity aquifer system and contiguous hydraulically connected units is about 3 million acre-feet per year. Estimates of areally distributed recharge from the simulations range from 0.1 to 1 inch per year for the Edwards-Trinity aquifer and increase to 4 inches per year for the Trinity aquifer. Recharge to the Edwards aquifer occurs along streambeds that cross outcropped high-permeability rocks of the Edwards Group through joints and faults. Many of the streams are diverted completely underground during periods of no precipitation. The movement of a substantial quantity of water (about 400 cubic feet per second) from the Trinity and Edwards-Trinity aquifers into the Edwards aquifer was simulated. Results of the simulations indicate that anisotropy strongly influences flow in the Edwards aquifer. In the San Antonio and Austin areas, the Edwards aquifer is the most active part of the ground-water flow system with one-third of ground-water discharge occurring in 5 percent of the modeled area for both simulations.

  10. 75 FR 34421 - Trinity County Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-17

    ...) met at the Trinity County Office of Education in Weaverville, California, on June 7, 2010, at 6:30 p.m...: Trinity County Office of Education, 201 Memorial Drive, Weaverville, California 96093. FOR FURTHER....us . SUPPLEMENTARY INFORMATION: The meeting was open to the public. Public input sessions were...

  11. SKYLAB II - EARTH VIEW (EREP)

    NASA Image and Video Library

    1973-09-20

    S73-34295 (June 1973) --- A vertical view of a portion of northern California reproduced from data taken from the Skylab Multispectral Scanner, experiment S192, in the Skylab space station in Earth orbit. This view is the most westerly one-third of Frame No. 001, Roll No. 518, S192, Skylab 2. Frame No. 001 extends from the Pacific coast at the Eureka area southeasterly 175 nautical miles to the Feather River drainage basin. Included in this view are Eureka, Trinidad, Klamath & Trinity Rivers and the Coastal Range mountains. This non-photographic image is a color composite of channels 2 (visible), 7, and 12 (infrared) from the Earth Resources Experiments Package (EREP) S192 scanner. The scanner techniques assist with spectral signature identification and mapping of ground truth targets in agriculture, forestry, geology, hydrology and oceanography. Photo credit: NASA

  12. 78 FR 35312 - Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-12

    ...-FF08EACT00] Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting... Service, announce a public meeting, teleconference and web-based meeting of the Trinity Adaptive Management Working Group (TAMWG). DATES: Public meeting, Teleconference, and web-based meeting: Tuesday June...

  13. 78 FR 49281 - Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-13

    ...-FF08EACT00] Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting... Service, announce a public meeting, teleconference, and web-based meeting of the Trinity Adaptive Management Working Group (TAMWG). DATES: Public meeting, Teleconference, and web-based meeting: Tuesday...

  14. 78 FR 17226 - Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-20

    ...-FF08EACT00] Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting... Service, announce a public meeting, teleconference and web-based meeting of the Trinity Adaptive Management Working Group (TAMWG). DATES: Public meeting, Teleconference, and web-based meeting: Monday April...

  15. Trinity River Bottom Sediment Reconnaissance Study. Phase I. Plan of Work.

    DTIC Science & Technology

    1976-11-30

    CLC AR MAX -A - I C?- 0 0 In~ ~ ~ LO I n nI opC , £. Cc %n.O t 0 3.r 0 1.C) 41C C7M og 0 0 m IIV L. L. 41 04 91- In L-) =4 (D c~ 00 mS %0 % .4...digestion; causes hypertension and cardi,-vascular problems; acr>r,lates in the kidney and liver . Standards for Cadrmium in Water EPA (1972, 1973b, 1975...total chromium. (see Appendix L for detailed procedures.) Copper, Cu: Is essential in trace amounds; in large concentrations may cause liver damage and

  16. Status Report of Environmental Evaluations, Trinity River Project, Texas. Appendix A. Plates and Photographs

    DTIC Science & Technology

    1975-06-01

    Lt.AA.LFFL% 1 I 8A -it k .. ’.NWowO cA, hi l X o-I’d1. 11 4 BASIN WAE SIA IJ, ARMY 170E R ITIC ,FHT * K ., - WII~~~I 01 A.A’ 1 n-AN, (NG ~ ~ ~ ~ ~ IA...40 S IO SCALE IN4 PE9l PLATE 29 SCEION CEET "IGH w4fe( i 5’...1’ Vvrr..R./ 20 0 20 40. 60 SCALL IN FEET Z’ 6.. C.-. SECTION J-J r /ow/ t0 0 t0 40 60

  17. Water-quality assessment of the Trinity River Basin, Texas - Analysis of available information on nutrients and suspended sediment, 1974-91

    USGS Publications Warehouse

    Van Metre, Peter C.; Reutter, David C.

    1995-01-01

    Only limited suspended-sediment data were available. Four sites had daily sediment-discharge records for three or more water years (October 1 to September 30) between 1974 and 1985. An additional three sites had periodic measurements of suspended-sediment concentrations. There are differences in concentrations and yields among sites; however, the limited amount of data precludes developing statistical or cause-and-effect relations with environmental factors such as land use, soil, and geology. Data are sufficient, and the relation is pronounced enough, to indicate trapping of suspended sediment by Livingston Reservoir.

  18. The Expression of Backwater Dynamics in the Morphology, Kinematics and Deposit Architecture of Fluvio-deltaic Channels

    NASA Astrophysics Data System (ADS)

    Fernandes, A. M.; Smith, V.

    2017-12-01

    A downstream reduction in bed material flux is associated with the backwater zone, where rivers in their terminal reaches deepen to respond to the sea-level in the receiving basin. This downstream change in sediment transport is reflected in: a) lateral channel mobility, and b) sedimentology and stratigraphic architecture of composite depositional bodies that are left behind. Here we draw comparisons between the Mississippi River and the Trinity River (TX), in terms of bar morphologies and composition, and lateral mobility of these rivers. Across the backwater transition, both rivers display a slight increase in lateral migration rates, followed by substantial decrease lateral migration in the terminal reaches. Both rivers also display predominantly symmetrical channel cross-sections, coincident with very small migration rates in the terminal reaches. We will discuss how the divergence in sediment transport flux across the backwater zone relates to the volume and shape of bank-attached bars, which in turn relates to the cross-sectional shapes of the channels as well as their lateral migrations rates, and ultimately defines the internal architecture of the composite channel deposits that result. Furthermore, we draw comparisons between the morphologies of bank-attached bars and channels in rivers and submarine channels to present insights into how the dominant mode of sediment transport in these different environments ultimately controls the morphologies and kinematics of these channels.

  19. 78 FR 46361 - Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-31

    ...-FF08EACT00] Trinity Adaptive Management Working Group; Public Meeting, Teleconference and Web-Based Meeting... Trinity Management Council (TMC). DATES: Public meeting, Teleconference, and web-based meeting: TAMWG and..., Douglas City, CA 96024. You may participate in person or by teleconference or web-based meeting from your...

  20. FY17 ASC CSSE L2 Milestone 6018: Power Usage Characteristics of Workloads Running on Trinity.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Pedretti, Kevin

    The overall goal of this work was to utilize the Advanced Power Management (APM) capabilities of the ATS-1 Trinity platform to understand the power usage behavior of ASC workloads running on Trinity and gain insight into the potential for utilizing power management techniques on future ASC platforms.

  1. (U) Status of Trinity and Crossroads Systems

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Archer, Billy Joe; Lujan, James Westley; Hemmert, K. S.

    2017-01-10

    (U) This paper provides a general overview of current and future plans for the Advanced Simulation and Computing (ASC) Advanced Technology (AT) systems fielded by the New Mexico Alliance for Computing at Extreme Scale (ACES), a collaboration between Los Alamos Laboratory and Sandia National Laboratories. Additionally, this paper touches on research of technology beyond traditional CMOS. The status of Trinity, ASCs first AT system, and Crossroads, anticipated to succeed Trinity as the third AT system in 2020 will be presented, along with initial performance studies of the Intel Knights Landing Xeon Phi processors, introduced on Trinity. The challenges and opportunitiesmore » for our production simulation codes on AT systems will also be discussed. Trinity and Crossroads are a joint procurement by ACES and Lawrence Berkeley Laboratory as part of the Alliance for application Performance at EXtreme scale (APEX) http://apex.lanl.gov.« less

  2. DOE Office of Scientific and Technical Information (OSTI.GOV)

    NONE

    Trinity Gas Corp. officials signed an agreement on May 20, 1997, with the Cauca Valley Corp. (CVC) allowing Trinity to use CVC data to explore for natural gas in the Cauca Valley of Colombia. CVC, Colombia`s Valle del Cauca water resources and environmental division, is evaluating Colombia`s underground water reserves to protect, control and preserve fresh water aquifers, some of which contain natural gas pockets that cause blowouts in farmers` water wells. Preparations now are underway for drilling Trinity`s first well at the Palmira 1 site on the San Jose Hacienda, the largest privately owned sugar cane plantation in themore » valley. Trinity also entered into an agreement with the Cauca Valley Natural Gas and Electricity Project to furnish natural gas, generated electricity and energy fuel for the industrial district in the region. According to this contract, many valley residents will have electric service for the first time.« less

  3. Scholastic Inc. Pushing Coal: A 4th-Grade Curriculum Lies through Omission

    ERIC Educational Resources Information Center

    Bigelow, Bill

    2011-01-01

    This author grew up thinking that Scholastic was the most trusted name in children's books--endorsed by the holy trinity of school, teacher, and parents. However, he now claims that, these days, among other enterprises, Scholastic produces propaganda for the coal industry and passes it off as curriculum. Scholastic has partnered with the American…

  4. Core Values, Education and Research: A Response to Mark Pike

    ERIC Educational Resources Information Center

    Bragg, Sara; Allington, Daniel; Simmons, Katy; Jones, Ken

    2011-01-01

    This article presents the authors' response to the article by Mark Pike, which appeared in the "Oxford Review of Education" in December 2010. Pike's article focuses on Trinity Academy, one of four academies in the Emmanuel Schools Foundation (ESF): it is not a faith school, but sponsored by a Christian faith-based and business-oriented…

  5. Assessing geomorphic change along the Trinity River downstream from Lewiston Dam, California, 1980-2011

    USGS Publications Warehouse

    Curtis, Jennifer A.; Wright, Scott A.; Minear, Justin T.; Flint, Lorraine E.

    2015-01-01

    The highest rates of change in the areal extents of channel and riparian features were observed during the pre‑2001 period, which was longer and relatively wetter than the post-2001 period. A series of tributary floods in 1997, 1998, and 2006 increased channel complexity and floodplain connectivity. During the post-2006 period, managed-flow releases, in the absence of tributary flooding, combined with gravel augmentation and mechanical restoration, caused localized increases in sediment supply and transport capacity that led to smaller, but measurable, increases in channel complexity and floodplain connectivity in the upper river near Lewiston Dam. Extensive pre-2001 channel widening and the muted geomorphic response of channel rehabilitation sites to post-2001 managed flows highlight the need for continued monitoring and assessment of the magnitude, duration, and timing of prescriptive flows and associated geomorphic responses.

  6. SALMON-TRINITY ALPS WILDERNESS, CALIFORNIA.

    USGS Publications Warehouse

    Hotz, Preston E.; Thurber, Horace K.

    1984-01-01

    The Salmon-Trinity Alps Wilderness in the Klamath Mountains province occupies an area of about 648 sq mi in parts of Trinity, Siskiyou, and Humboldt Counties, northwestern California. As a result of field studies it was determined that the Salmon-Trinity Alps Wilderness has an area with substantiated potential for gold resources in known lode deposits. Small amounts of quicksilver have been produced from one mine but there is little promise for the discovery of additional mercury resources. Geochemical sampling showed that anomalously high amounts of several other metals occur in a few places, but there is little promise for the discovery of energy or mineral resources other than mercury and gold.

  7. Trinity to Trinity 1945-2015

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Moniz, Ernest; Carr, Alan; Bethe, Hans

    The Trinity Test of July 16, 1945 was the first full-scale, real-world test of a nuclear weapon; with the new Trinity supercomputer Los Alamos National Laboratory's goal is to do this virtually, in 3D. Trinity was the culmination of a fantastic effort of groundbreaking science and engineering by hundreds of men and women at Los Alamos and other Manhattan Project sites. It took them less than two years to change the world. The Laboratory is marking the 70th anniversary of the Trinity Test because it not only ushered in the Nuclear Age, but with it the origin of today’s advancedmore » supercomputing. We live in the Age of Supercomputers due in large part to nuclear weapons science here at Los Alamos. National security science, and nuclear weapons science in particular, at Los Alamos National Laboratory have provided a key motivation for the evolution of large-scale scientific computing. Beginning with the Manhattan Project there has been a constant stream of increasingly significant, complex problems in nuclear weapons science whose timely solutions demand larger and faster computers. The relationship between national security science at Los Alamos and the evolution of computing is one of interdependence.« less

  8. Trinity to Trinity 1945-2015

    ScienceCinema

    Moniz, Ernest; Carr, Alan; Bethe, Hans; Morrison, Phillip; Ramsay, Norman; Teller, Edward; Brixner, Berlyn; Archer, Bill; Agnew, Harold; Morrison, John

    2018-01-16

    The Trinity Test of July 16, 1945 was the first full-scale, real-world test of a nuclear weapon; with the new Trinity supercomputer Los Alamos National Laboratory's goal is to do this virtually, in 3D. Trinity was the culmination of a fantastic effort of groundbreaking science and engineering by hundreds of men and women at Los Alamos and other Manhattan Project sites. It took them less than two years to change the world. The Laboratory is marking the 70th anniversary of the Trinity Test because it not only ushered in the Nuclear Age, but with it the origin of today’s advanced supercomputing. We live in the Age of Supercomputers due in large part to nuclear weapons science here at Los Alamos. National security science, and nuclear weapons science in particular, at Los Alamos National Laboratory have provided a key motivation for the evolution of large-scale scientific computing. Beginning with the Manhattan Project there has been a constant stream of increasingly significant, complex problems in nuclear weapons science whose timely solutions demand larger and faster computers. The relationship between national security science at Los Alamos and the evolution of computing is one of interdependence.

  9. Quality of water in the Trinity and Edwards aquifers, south-central Texas, 1996-98

    USGS Publications Warehouse

    Fahlquist, Lynne; Ardis, Ann F.

    2004-01-01

    During 1996–98, the U.S. Geological Survey studied surface- and ground-water quality in south-central Texas. The ground-water components included the upper and middle zones (undifferentiated) of the Trinity aquifer in the Hill Country and the unconfined part (recharge zone) and confined part (artesian zone) of the Edwards aquifer in the Balcones fault zone of the San Antonio region. The study was supplemented by information compiled from four ground-water-quality studies done during 1996–98.Trinity aquifer waters are more mineralized and contain larger dissolved solids, sulfate, and chloride concentrations compared to Edwards aquifer waters. Greater variability in water chemistry in the Trinity aquifer likely reflects the more variable lithology of the host rock. Trace elements were widely detected, mostly at small concentrations. Median total nitrogen was larger in the Edwards aquifer than in the Trinity aquifer. Ammonia nitrogen was detected more frequently and at larger concentrations in the Trinity aquifer than in the Edwards aquifer. Although some nitrate nitrogen concentrations in the Edwards aquifer exceeded a U.S. Geological Survey national background threshold concentration, no concentrations exceeded the U.S. Environmental Protection Agency public drinking-water standard.Synthetic organic compounds, such as pesticides and volatile organic compounds, were detected in the Edwards aquifer and less frequently in the Trinity aquifer, mostly at very small concentrations (less than 1 microgram per liter). These compounds were detected most frequently in urban unconfined Edwards aquifer samples. Atrazine and its breakdown product deethylatrazine were the most frequently detected pesticides, and trihalomethanes were the most frequently detected volatile organic compounds. Widespread detections of these compounds, although at small concentrations, indicate that anthropogenic activities affect ground-water quality.Radon gas was detected throughout the Trinity aquifer but not throughout the Edwards aquifer. Fourteen samples from the Trinity aquifer and 10 samples from the Edwards aquifer exceeded a proposed U.S. Environmental Protection Agency public drinking-water standard. Sources of radon in the study area might be granitic sediments underlying the Trinity aquifer and igneous intrusions in and below the Edwards aquifer.The presence of tritium in nearly all Edwards aquifer samples indicates that some component of sampled water is young (less than about 50 years), even for long flow paths in the confined zone. About one-half of the Trinity aquifer samples contained tritium, indicating that only part of the aquifer contains young water.Hydrogen and oxygen isotopes of water provide indicators of recharge sources to the Trinity and Edwards aquifers. Most ground-water samples have a meteorological isotopic signature indicating recharge as direct infiltration of water with little residence time on the land surface. Isotopic data from some samples collected from the unconfined Edwards aquifer indicate the water has undergone evaporation. At the time that ground-water samples were collected (during a drought), nearby streams were the likely sources of recharge to these wells.

  10. Community participation in fire management planning: The Trinity county fire safe council's fire plan

    Treesearch

    Yvonne Everett

    2008-01-01

    In 1999, Trinity County CA, initiated a participatory fire management planning effort. Since that time, the Trinity County Fire Safe Council has completed critical portions of a fire safe plan and has begun to implement projects defined in the plan. Completion of a GIS based, landscape scale fuels reduction element in the plan defined by volunteer fire fighters, agency...

  11. Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas

    USGS Publications Warehouse

    Clark, Allan K.; Morris, Robert R.

    2017-11-16

    The Edwards and Trinity aquifers are major sources of water in south-central Texas and are both classified as major aquifers by the State of Texas. The population in Hays and Comal Counties is rapidly growing, increasing demands on the area’s water resources. To help effectively manage the water resources in the area, refined maps and descriptions of the geologic structures and hydrostratigraphic units of the aquifers are needed. This report presents the detailed 1:24,000-scale bedrock hydrostratigraphic map as well as names and descriptions of the geologic and hydrostratigraphic units of the Driftwood and Wimberley 7.5-minute quadrangles in Hays and Comal Counties, Tex.Hydrostratigraphically, the rocks exposed in the study area represent a section of the upper confining unit to the Edwards aquifer, the Edwards aquifer, the upper zone of the Trinity aquifer, and the middle zone of the Trinity aquifer. In the study area, the Edwards aquifer is composed of the Georgetown Formation and the rocks forming the Edwards Group. The Trinity aquifer is composed of the rocks forming the Trinity Group. The Edwards and Trinity aquifers are karstic with high secondary porosity along bedding and fractures. The Del Rio Clay is a confining unit above the Edwards aquifer and does not supply appreciable amounts of water to wells in the study area.The hydrologic connection between the Edwards and Trinity aquifers and the various hydrostratigraphic units is complex because the aquifer system is a combination of the original Cretaceous depositional environment, bioturbation, primary and secondary porosity, diagenesis, and fracturing of the area from Miocene faulting. All of these factors have resulted in development of modified porosity, permeability, and transmissivity within and between the aquifers. Faulting produced highly fractured areas which allowed for rapid infiltration of water and subsequently formed solutionally enhanced fractures, bedding planes, channels, and caves that are highly permeable and transmissive. Because of faulting the juxtaposition of the aquifers and hydrostratigraphic units has resulted in areas of interconnectedness between the Edwards and Trinity aquifers and the various hydrostratigraphic units that form the aquifers.

  12. Water as the future clash for civilizations: a fresh conceptual approach for a Global Trinity? Water Scarcity and Future Conflict- consideration of water scarcity as a primary cause of conflict in the future requiring an adjustment to the Western approach to threats.

    DTIC Science & Technology

    2013-03-25

    of 70% by 2050. Meanwhile, economic growth and individual wealth have been producing a shift in diets from predominantly starch-based to meat and...44 From its most remote source at the head of the River Luvironzo near Lake Tanganyika, to its mouth on the Mediterranean Sea, at 6,700km the...economic development of Africa across all major parts of the continent; linking processes in southern Africa to northern Africa and the Mediterranean

  13. A Systems Evaluation of the Environmental Impact of the Aubrey Reservoir Project on Elm Fork of the Trinity River in North Texas.

    DTIC Science & Technology

    1972-06-01

    JUN 72 L C FITZPATRICK , R L ABSHI RE. L G KNOX D AC W 3-72-C-X052 4 mhhho hhEEE I lffllffllfNOlf NElf mohEEEEEshhhEE EhmhhEEEmhEEEE mhEmhEEEEEmhhI...C-0052, on 30 June 1972. I f’v IabnC Wer’Ye td so; itsj 81 3 3 063 - I _rj_,CLASSIFICATION OF THIS PAGE (When Dole Kntored) REPORT DOCUMENTATION PAGE...Engineers June 1972 Engineering Division, Plng Br, SWFED-P I . NUMBER OFPAGES P. 0. Box 17300, Fort Worth, Texas 76102 339 14. MONITORING AGENCY NAME

  14. USGS Zebra Mussel Monitoring Program for north Texas

    USGS Publications Warehouse

    Churchill, Christopher J.; Baldys, Stanley

    2012-01-01

    The U.S. Geological Survey (USGS) Zebra Mussel Monitoring Program for north Texas provides early detection and monitoring of zebra mussels (Dreissena polymorpha) by using a holistic suite of detection methods. The program is designed to assess zebra mussel occurrence, distribution, and densities in north Texas waters by using four approaches: (1) SCUBA diving, (2) water-sample collection with plankton tow nets (followed by laboratory analyses), (3) artificial substrates, and (4) water-quality sampling. Data collected during this type of monitoring can assist rapid response efforts and can be used to quantify the economic and ecological effects of zebra mussels in the north Texas area. Monitoring under this program began in April 2010. The presence of large zebra mussel populations often causes undesirable economic and ecological effects, including damage to water-processing infrastructure and hydroelectric powerplants (with an estimated 10-year cost of $3.1 billion), displacement of native mussels, increases in concentrations of certain species of cyanobacteria, and increases in concentrations of geosmin (an organic compound that results in taste and odor issues in water). Since no large-scale, environmentally safe eradication method has been developed for zebra mussels, it is difficult to remove established populations. Broad physicochemical adaptability, prolific reproductive capacity, and rapid dispersal methods have enabled zebra mussels, within a period of about 20 years, to establish populations under differing environmental conditions across much of the eastern part of the United States. In Texas, the presence of zebra mussels was first confirmed in April 2009 in Lake Texoma in the Red River Basin along the Texas-Oklahoma border. They were most likely introduced into Lake Texoma through overland transport from an infested water body. Since then, the presence of zebra mussels has been reported in both the Red River and Washita River arms of Lake Texoma, in Sister Grove Creek, and in Ray Roberts Lake. Water managers tasked with supplying the 6.6 million residents of the Dallas-Fort Worth metropolitan area must ensure that the area receives a continuous supply of water that meets both the needs of the current (2012) and the projected (doubling in number by 2050) populations. This metropolitan area depends on surface water captured in area reservoirs, including those in the Trinity River Basin, for the primary source of drinking water. The presence of an established zebra mussel population in a reservoir in the Trinity River Basin could result in increased operations and maintenance costs for water resource managers and could potentially serve as a source population leading to further expansion of this aquatic nuisance species.

  15. The Stage and the City: Narrative, Identity and Place in Dermot Bolger's "The Ballymun Trilogy" (2004-2008)

    ERIC Educational Resources Information Center

    Malone, Niamh; O'Sullivan, Carmel

    2011-01-01

    Located two miles from Dublin Airport, Ballymun was built (1966-9) to accommodate people displaced from the inner-city slums dramatised in Sean O'Casey's Dublin Trilogy. "The Stage and the City" draws on the author's research project at Trinity College Dublin, on Theatre and Urban Regeneration. Specifically, it situates Dermot Bolger's…

  16. Illuminating the Shadows of War: Demystifying Complex Adaptive Systems

    DTIC Science & Technology

    2009-06-01

    time for reviewing instructions, searching existing data sources , gathering and maintaining the data needed, and completing and reviewing the...resources required when confronting an adversary such as Hezbollah. Apportionment of time, effort, and resources to influence 2 Hezbollah’s...Figure 1: Clausewitz’s Paradoxical Trinity Source : Author’s original work Nearly a century later, British Army officer, military

  17. Ensuring Access and Inclusion for Marginalised Children in Extended Services: Identifying the Barriers and Promoting Choice

    ERIC Educational Resources Information Center

    Frost, Nick; Elmer, Sue; Best, Lesly; Mills, Sue

    2010-01-01

    This article by Nick Frost of Leeds Metropolitan University, Sue Elmer of Leeds Trinity University, and Lesly Best and Sue Mills, who are both Independent Researchers, looks at the experience of marginalised children in extended services. The authors conducted research into access to, and inclusion in, extended services based within schools and…

  18. 75 FR 38143 - Investigations Regarding Certifications of Eligibility To Apply for Worker Adjustment Assistance

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-01

    ........... 06/01/10 05/26/10 America (Workers). 74165 Trinity Tank Car Plant Longview, TX 06/01/10 05/26/10 1194 (State/One- Stop). 74166 Trinity Tank Car Plant Longview, TX 06/01/10 05/26/10 1110 (State/One- Stop). 74167 Trinity Tank Car Plant Longview, TX 06/01/10 05/26/10 17 (State/One- Stop). 74168 Kokomo Sanitary...

  19. Performance of VPIC on Trinity

    NASA Astrophysics Data System (ADS)

    Nystrom, W. D.; Bergen, B.; Bird, R. F.; Bowers, K. J.; Daughton, W. S.; Guo, F.; Li, H.; Nam, H. A.; Pang, X.; Rust, W. N., III; Wohlbier, J.; Yin, L.; Albright, B. J.

    2016-10-01

    Trinity is a new major DOE computing resource which is going through final acceptance testing at Los Alamos National Laboratory. Trinity has several new and unique architectural features including two compute partitions, one with dual socket Intel Haswell Xeon compute nodes and one with Intel Knights Landing (KNL) Xeon Phi compute nodes. Additional unique features include use of on package high bandwidth memory (HBM) for the KNL nodes, the ability to configure the KNL nodes with respect to HBM model and on die network topology in a variety of operational modes at run time, and use of solid state storage via burst buffer technology to reduce time required to perform I/O. An effort is in progress to port and optimize VPIC to Trinity and evaluate its performance. Because VPIC was recently released as Open Source, it is being used as part of acceptance testing for Trinity and is participating in the Trinity Open Science Program which has resulted in excellent collaboration activities with both Cray and Intel. Results of this work will be presented on performance of VPIC on both Haswell and KNL partitions for both single node runs and runs at scale. Work performed under the auspices of the U.S. Dept. of Energy by the Los Alamos National Security, LLC Los Alamos National Laboratory under contract DE-AC52-06NA25396 and supported by the LANL LDRD program.

  20. FY17 CSSE L2 Milestone Report: Analyzing Power Usage Characteristics of Workloads Running on Trinity.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Pedretti, Kevin

    This report summarizes the work performed as part of a FY17 CSSE L2 milestone to in- vestigate the power usage behavior of ASC workloads running on the ATS-1 Trinity plat- form. Techniques were developed to instrument application code regions of interest using the Power API together with the Kokkos profiling interface and Caliper annotation library. Experiments were performed to understand the power usage behavior of mini-applications and the SNL/ATDM SPARC application running on ATS-1 Trinity Haswell and Knights Landing compute nodes. A taxonomy of power measurement approaches was identified and presented, providing a guide for application developers to follow. Controlledmore » scaling study experiments were performed on up to 2048 nodes of Trinity along with smaller scale ex- periments on Trinity testbed systems. Additionally, power and energy system monitoring information from Trinity was collected and archived for post analysis of "in-the-wild" work- loads. Results were analyzed to assess the sensitivity of the workloads to ATS-1 compute node type (Haswell vs. Knights Landing), CPU frequency control, node-level power capping control, OpenMP configuration, Knights Landing on-package memory configuration, and algorithm/solver configuration. Overall, this milestone lays groundwork for addressing the long-term goal of determining how to best use and operate future ASC platforms to achieve the greatest benefit subject to a constrained power budget.« less

  1. Stratigraphic Evolution of Brazos-Trinity Basin IV, Western Gulf of Mexico: Preliminary Results of IODP Expedition 308

    NASA Astrophysics Data System (ADS)

    Pirmez, C.; Behrmann, J.; Flemings, P. B.; John, C.

    2005-12-01

    IODP Expedition 308 drilled three sites across Brazos-Trinity Basin IV, at the terminal end of a system of four salt-withdrawal intra-slope basins offshore Texas. A 175 m thick succession of sand-rich turbidite fans, mass-transport deposits and hemipelagic sediments was deposited within the last ~120 ka in Basin IV, as recorded at Site U1320. Pre-fan deposits dating back to MIS 6 form a conformable succession of laminated and bioturbated clays, deposited from distal turbidity currents and/or river plumes. The pre-fan succession is capped by a hemipelagic clay interpreted to represent the high stand of sea level during MIS 5e. The basal turbidite deposits in the basin are mud-rich, with the exception of the very first turbidity currents to enter the basin. This initial pulse, possibly derived from failure of older shelf edge deposits, accumulated an ~8 m thick sand-rich interval. A pause in turbidity current influx lasted 30 to 40 kyrs, beginning a few thousand years before ash layer Y8 dated at 84 ka and the Emiliana huxleyi acme. During MIS 3 to MIS 2 sand-rich fans containing 5-25 m thick packets of very fine to lower medium sand beds accumulated up to 130 m of sediments. A 2-3 m thick microfossil-rich clay marks the end of turbidity current influx into the basin during the Holocene. The sedimentary record of Brazos-Trinity Basin IV shows that the accumulation of turbidites in the terminal end of this source to sink depositional system reflects a complex interaction between the availability of material and the initiation of flows at the source near the shelf edge, the interaction of turbidity currents with complex slope topography, and the effects of salt tectonics and flow processes on modifying this topography. The initial results indicate that sealevel changes alone cannot explain the sedimentation patterns observed in the basin.

  2. Reservoir Control Center: Activities and Accomplishments of the Southwestern Division of the Army Corps of Engineers Related to Reservoir Regulation and Water Management. Part 3. Instream Flow Study. Appendix A.

    DTIC Science & Technology

    1981-01-01

    Inoduction I.. WHITE RIVER BASIN Bover Whilte LRD AR 66 1120,0 1130,0 1652 300 5 Table Rock White LRD AR/MO 58 915.0 931.0 2702 760 526 Bull Shoals...Benbrook Trinity 391 Big Hill Arkansas 120 Birch Arkansas 151 Blue Mountain Arkansas 266 Broken Bow Red 331 Bull Shoals White 15 Canton Arkansas 234 Canyon...RELAT IONS fPqnC FRCcn :324-M24) AT DAM SITE OCTOBER~ FLOWS (PER~ TIpO C REVZR CC?45-1T7NS U.. MY ENGINEER DISTRICT. FORT WORTH TO RCCCMDR4Y tNSTR~qr

  3. Status Report of Environmental Evaluations Trinity River Project, Texas. Main Text

    DTIC Science & Technology

    1975-06-01

    metropolitan character . Portions of this subregion are shown in Photographs 17 through 22, Appendix A. 2-43 SI : -. 91 .. 3Ec 7ItZ -~g -12 - 0M 0 -.z * 4 z~ si ...rather narrow, or oceanic, aeair thC Cz_9t- h, t are wide, or continental in character , in the interior of the Basin. 1-20 1.08.06 Winds. The prevailing...3 IF cr :rr 1-68 ’-410 0 .0 0% .1^ qC) 71t 1~ *C14 II 8.- x jf 0 > I C- 0 1 ~~u~W I-4 SI IC’m LA0 0 -C >-0 r4~ __ _ _ _ __ _ _ _ _ __ _ _ _ _ V) P

  4. 75 FR 27814 - Trinity Adaptive Management Working Group

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-18

    ..., 2010. ADDRESSES: The meeting will be held at the Trinity County Library, 211 Main St., Weaverville, CA... include discussion of the following topics: TRRP budget; Science program proposals and work plan...

  5. Trinity | Informatics Technology for Cancer Research (ITCR)

    Cancer.gov

    Trinity Cancer Transcriptome Analysis Toolkit (CTAT) including de novo transcriptome assembly with downstream support for expression analysis and focused analyses on cancer transcriptomes, incorporating mutation and fusion transcript discovery, and single cell analysis.

  6. 4. Photocopy of measured drawing (original in possession of Trinity ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Photocopy of measured drawing (original in possession of Trinity Episcopal Cathedral) Edward Tuckerman Potter, architect ca. 1867 WEST FACADE, ELEVATION - Grace Episcopal Cathedral, 1121 Main Street, Davenport, Scott County, IA

  7. LLNL Mercury Project Trinity Open Science Final Report

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Brantley, Patrick; Dawson, Shawn; McKinley, Scott

    2016-04-20

    The Mercury Monte Carlo particle transport code developed at Lawrence Livermore National Laboratory (LLNL) is used to simulate the transport of radiation through urban environments. These challenging calculations include complicated geometries and require significant computational resources to complete. As a result, a question arises as to the level of convergence of the calculations with Monte Carlo simulation particle count. In the Trinity Open Science calculations, one main focus was to investigate convergence of the relevant simulation quantities with Monte Carlo particle count to assess the current simulation methodology. Both for this application space but also of more general applicability, wemore » also investigated the impact of code algorithms on parallel scaling on the Trinity machine as well as the utilization of the Trinity DataWarp burst buffer technology in Mercury via the LLNL Scalable Checkpoint/Restart (SCR) library.« less

  8. 5. Photocopy of measured drawing (original in possession of Trinity ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Photocopy of measured drawing (original in possession of Trinity Episcopal Cathedral) Edward Tuckerman Potter, architect ca. 1867 CROSS SECTION, LOOKING NORTH - Grace Episcopal Cathedral, 1121 Main Street, Davenport, Scott County, IA

  9. A Decade Remote Sensing River Bathymetry with the Experimental Advanced Airborne Research LiDAR

    NASA Astrophysics Data System (ADS)

    Kinzel, P. J.; Legleiter, C. J.; Nelson, J. M.; Skinner, K.

    2012-12-01

    Since 2002, the first generation of the Experimental Advanced Airborne Research LiDAR (EAARL-A) sensor has been deployed for mapping rivers and streams. We present and summarize the results of comparisons between ground truth surveys and bathymetry collected by the EAARL-A sensor in a suite of rivers across the United States. These comparisons include reaches on the Platte River (NE), Boise and Deadwood Rivers (ID), Blue and Colorado Rivers (CO), Klamath and Trinity Rivers (CA), and the Shenandoah River (VA). In addition to diverse channel morphologies (braided, single thread, and meandering) these rivers possess a variety of substrates (sand, gravel, and bedrock) and a wide range of optical characteristics which influence the attenuation and scattering of laser energy through the water column. Root mean square errors between ground truth elevations and those measured by the EAARL-A ranged from 0.15-m in rivers with relatively low turbidity and highly reflective sandy bottoms to over 0.5-m in turbid rivers with less reflective substrates. Mapping accuracy with the EAARL-A has proved challenging in pools where bottom returns are either absent in waveforms or are of such low intensity that they are treated as noise by waveform processing algorithms. Resolving bathymetry in shallow depths where near surface and bottom returns are typically convolved also presents difficulties for waveform processing routines. The results of these evaluations provide an empirical framework to discuss the capabilities and limitations of the EAARL-A sensor as well as previous generations of post-processing software for extracting bathymetry from complex waveforms. These experiences and field studies not only provide benchmarks for the evaluation of the next generation of bathymetric LiDARs for use in river mapping, but also highlight the importance of developing and standardizing more rigorous methods to characterize substrate reflectance and in-situ optical properties at study sites. They also point out the continued necessity of ground truth data for algorithm refinement and survey verification.

  10. Geologic history and hydrogeologic setting of the Edwards-Trinity aquifer system, west-central Texas

    USGS Publications Warehouse

    Barker, R.A.; Bush, P.W.; Baker, E.T.

    1994-01-01

    Because the diagenetic effects of cementation, recrystallization, and mineral replacement diminish the hydraulic conductivity of most rocks composing the Trinity and Edwards-Trinity aquifers, transmissivity values average less than 10,000 feet squared per day over more than 90 percent of the study area. However, the effects of tectonic fractures and dissolution in the Balcones fault zone cause transmissivity values to average about 750,000 feet squared per day in the Edwards aquifer, which occupies less than 10 percent of the study area.

  11. The future of Catholic health care: observations from an Orthodox Christian perspective.

    PubMed

    Cozby, Dimitri

    1999-04-01

    The author reflects on the future of Catholic health care by looking at the essays in this volume by Dennis Brodeur, Clarke E. Cochran, and Christopher J. Kauffman. The author argues that (1) Roman Catholic teaching on the Trinity is defective, yielding an inadequate model of society, (2) Roman Catholic teaching on the Incarnation is defective, yielding an impoverished understanding of the "sacramental," and (3) the institutional orientation of Roman Catholicism combined with the lack of true sacramental vision makes it nearly impossible for Roman Catholic theory to criticize the current structure of health care financing.

  12. De novo transcriptome assembly of the calanoid copepod Neocalanus flemingeri: A new resource for emergence from diapause.

    PubMed

    Roncalli, Vittoria; Cieslak, Matthew C; Sommer, Stephanie A; Hopcroft, Russell R; Lenz, Petra H

    2018-02-01

    Copepods, small planktonic crustaceans, are key links between primary producers and upper trophic levels, including many economically important fishes. In the subarctic North Pacific, the life cycle of copepods like Neocalanus flemingeri includes an ontogenetic migration to depth followed by a period of diapause (a type of dormancy) characterized by arrested development and low metabolic activity. The end of diapause is marked by the production of the first brood of eggs. Recent temperature anomalies in the North Pacific have raised concerns about potential negative effects on N. flemingeri. Since diapause is a developmental program, its progress can be tracked using through global gene expression. Thus, a reference transcriptome was developed as a first step towards physiological profiling of diapausing females using high-throughput Illumina sequencing. The de novo transcriptome, the first for this species was designed to investigate the diapause period. RNA-Seq reads were obtained for dormant to reproductive N. flemingeri females. A high quality de novo transcriptome was obtained by first assembling reads from each individual using Trinity software followed by clustering with CAP3 Assembly Program. This assembly consisted of 140,841transcripts (contigs). Bench-marking universal single-copy orthologs analysis identified 85% of core eukaryotic genes, with 79% predicted to be complete. Comparison with other calanoid transcriptomes confirmed its quality and degree of completeness. Trinity assembly of reads originating from multiple individuals led to fragmentation. Thus, the workflow applied here differed from the one recommended by Trinity, but was required to obtain a good assembly. Copyright © 2017 The Authors. Published by Elsevier B.V. All rights reserved.

  13. Evaluation of median barrier safety issues.

    DOT National Transportation Integrated Search

    2008-01-01

    The objective of this study was to evaluate the effectiveness of the Brifen TL-4 and Trinity CASS median cable barrier systems in preventing cross-median collisions on sections of I-64, I-71, and I-265 (Brifen system) and I-265 (Trinity system) in Je...

  14. Analysis of Trinity Power Metrics for Automated Monitoring

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Michalenko, Ashley Christine

    This is a presentation from Los Alamos National Laboraotyr (LANL) about the analysis of trinity power metrics for automated monitoring. The following topics are covered: current monitoring efforts, motivation for analysis, tools used, the methodology, work performed during the summer, and future work planned.

  15. Ephemeral magma chambers in the Trinity peridotite, northern California

    NASA Astrophysics Data System (ADS)

    Cannat, Mathilde; Lécuyer, Christophe

    1991-02-01

    The Trinity Massif comprises the major lithologies of an ophiolite, as defined at the 1972 Penrose conference. Previous studies have shown, however, that it differs from the Semail (Oman) or Table Mountain (Newfoundland) ophiolitic massifs, particularly because its crustal section is thin, and because its mantle section has vertical plastic flow planes. These features have led to an interpretation of the Trinity Massif as a fragment of slow-spreading oceanic lithosphere (Le Sueur et al., 1984; Boudier and Nicolas, 1985). In this paper, we show that the Trinity gabbros occur in discontinuous, kilometre-sized pockets, intrusive into the mantle peridotites. The internal stratigraphy and the petrological characteristics of these gabbros suggest that they formed in short-lived magma chambers. These ephemeral magma chambers developed after the end of the plastic deformation in the surrounding mantle, when it had cooled down to lithospheric temperatures. We discuss the possibility that these small and ephemeral magma chambers formed at a slow-spreading oceanic ridge.

  16. Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later

    DOE PAGES

    Hanson, Susan Kloek; Pollington, Anthony Douglas; Waidmann, Christopher Russell; ...

    2016-07-05

    This study describes an approach to measuring extinct fission products that would allow for the characterization of a nuclear test at any time. The isotopic composition of molybdenum in five samples of glassy debris from the 1945 Trinity nuclear test has been measured. Nonnatural molybdenum isotopic compositions were observed, reflecting an input from the decay of the short-lived fission products 95Zr and 97Zr. By measuring both the perturbation of the 95Mo/ 96Mo and 97Mo/ 96Mo isotopic ratios and the total amount of molybdenum in the Trinity nuclear debris samples, it is possible to calculate the original concentrations of the 95Zrmore » and 97Zr isotopes formed in the nuclear detonation. Together with a determination of the amount of plutonium in the debris, these measurements of extinct fission products allow for new estimates of the efficiency and yield of the historic Trinity test.« less

  17. Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hanson, Susan Kloek; Pollington, Anthony Douglas; Waidmann, Christopher Russell

    This study describes an approach to measuring extinct fission products that would allow for the characterization of a nuclear test at any time. The isotopic composition of molybdenum in five samples of glassy debris from the 1945 Trinity nuclear test has been measured. Nonnatural molybdenum isotopic compositions were observed, reflecting an input from the decay of the short-lived fission products 95Zr and 97Zr. By measuring both the perturbation of the 95Mo/ 96Mo and 97Mo/ 96Mo isotopic ratios and the total amount of molybdenum in the Trinity nuclear debris samples, it is possible to calculate the original concentrations of the 95Zrmore » and 97Zr isotopes formed in the nuclear detonation. Together with a determination of the amount of plutonium in the debris, these measurements of extinct fission products allow for new estimates of the efficiency and yield of the historic Trinity test.« less

  18. Simulation of groundwater flow in the Edwards-Trinity and related aquifers in the Pecos County region, Texas

    USGS Publications Warehouse

    Thomas, Jonathan V.

    2014-01-01

    The Edwards-Trinity aquifer, a major aquifer in the Pecos County region of western Texas, is a vital groundwater resource for agricultural, industrial, and public supply uses. Resource managers would like to better understand the future availability of water in the Edwards-Trinity aquifer in the Pecos County region and the effects of the possible increase or temporal redistribution of groundwater withdrawals. To that end, the U.S. Geological Survey (USGS), in cooperation with the Middle Pecos Groundwater Conservation District, Pecos County, City of Fort Stockton, Brewster County, and Pecos County Water Control and Improvement District No. 1, completed a comprehensive, integrated analysis of available hydrogeologic data to develop a groundwater-flow model of the Edwards-Trinity and related aquifers in parts of Brewster, Jeff Davis, Pecos, and Reeves Counties. Following calibration, the model was used to evaluate the sustainability of recent (2008) and projected water-use demands on groundwater resources in the study area.

  19. Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later

    PubMed Central

    Hanson, Susan K.; Pollington, Anthony D.; Waidmann, Christopher R.; Kinman, William S.; Wende, Allison M.; Miller, Jeffrey L.; Berger, Jennifer A.; Oldham, Warren J.; Selby, Hugh D.

    2016-01-01

    This paper describes an approach to measuring extinct fission products that would allow for the characterization of a nuclear test at any time. The isotopic composition of molybdenum in five samples of glassy debris from the 1945 Trinity nuclear test has been measured. Nonnatural molybdenum isotopic compositions were observed, reflecting an input from the decay of the short-lived fission products 95Zr and 97Zr. By measuring both the perturbation of the 95Mo/96Mo and 97Mo/96Mo isotopic ratios and the total amount of molybdenum in the Trinity nuclear debris samples, it is possible to calculate the original concentrations of the 95Zr and 97Zr isotopes formed in the nuclear detonation. Together with a determination of the amount of plutonium in the debris, these measurements of extinct fission products allow for new estimates of the efficiency and yield of the historic Trinity test. PMID:27382169

  20. De novo transcript sequence reconstruction from RNA-seq using the Trinity platform for reference generation and analysis.

    PubMed

    Haas, Brian J; Papanicolaou, Alexie; Yassour, Moran; Grabherr, Manfred; Blood, Philip D; Bowden, Joshua; Couger, Matthew Brian; Eccles, David; Li, Bo; Lieber, Matthias; MacManes, Matthew D; Ott, Michael; Orvis, Joshua; Pochet, Nathalie; Strozzi, Francesco; Weeks, Nathan; Westerman, Rick; William, Thomas; Dewey, Colin N; Henschel, Robert; LeDuc, Richard D; Friedman, Nir; Regev, Aviv

    2013-08-01

    De novo assembly of RNA-seq data enables researchers to study transcriptomes without the need for a genome sequence; this approach can be usefully applied, for instance, in research on 'non-model organisms' of ecological and evolutionary importance, cancer samples or the microbiome. In this protocol we describe the use of the Trinity platform for de novo transcriptome assembly from RNA-seq data in non-model organisms. We also present Trinity-supported companion utilities for downstream applications, including RSEM for transcript abundance estimation, R/Bioconductor packages for identifying differentially expressed transcripts across samples and approaches to identify protein-coding genes. In the procedure, we provide a workflow for genome-independent transcriptome analysis leveraging the Trinity platform. The software, documentation and demonstrations are freely available from http://trinityrnaseq.sourceforge.net. The run time of this protocol is highly dependent on the size and complexity of data to be analyzed. The example data set analyzed in the procedure detailed herein can be processed in less than 5 h.

  1. Concordant paleolatitudes for Neoproterozoic ophiolitic rocks of the Trinity Complex, Klamath Mountains, California

    USGS Publications Warehouse

    Mankinen, E.A.; Lindsley-Griffin, N.; Griffin, J.R.

    2002-01-01

    New paleomagnetic results from the eastern Klamath Mountains of northern California show that Neoproterozoic rocks of the Trinity ophiolitic complex and overlying Middle Devonian volcanic rocks are latitudinally concordant with cratonal North America. Combining paleomagnetic data with regional geologic and faunal evidence suggests that the Trinity Complex and related terranes of the eastern Klamath plate were linked in some fashion to the North American craton throughout that time, but that distance between them may have varied considerably. A possible model that is consistent with our paleomagnetic results and the geologic evidence is that the Trinity Complex formed and migrated parallel to paleolatitude in the basin between Laurasia and Australia-East Antarctica as the Rodinian supercontinent began to break up. It then continued to move parallel to paleolatitude at least through Middle Devonian time. Although the eastern Klamath plate served as a nucleus against which more western components of the Klamath Mountains province amalgamated, the Klamath superterrane was not accreted to North America until Early Cretaceous time.

  2. Early Paleozoic magmatic events in the eastern Klamath Mountains, northern California

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Wallin, E.T.; Mattinson, J.M.; Potter, A.W.

    1988-02-01

    New U-Pb zircon ages for nine samples of tonalite and pegmatitic trondhjemite from the Trinity ophiolite and associated melange reveal a complex history of magmatic activity extending back into the earliest Cambrian, much older than previously believed. Earlier investigations, based on limited data, recognized lower Paleozoic crustal elements in the eastern Klamath terrane (EKT) ranging in age from Middle Ordovician to Early to Middle Devonian. The new work in the Yreka-Callahan area of the EKT confirms the Ordovician (440-475 Ma) and younger ages, but reveals for the first time the presence of tonalitic rocks that crystallized during a narrow timemore » interval at about 565-570 Ma. The authors also recognize younger, Late Silurian magmatism at 412 Ma. In the context of available mapping, these ages indicate that the Trinity ophiolite is broadly polygenetic because parts of it yield crystallization ages that span approximately 150 m.y. Superjacent dismembered units of probable early Paleozoic age may be tectonostratigraphically equivalent to the Sierra City melange in the northern Sierra Nevada.« less

  3. 76 FR 44318 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-25

    ... that the Commission received the following exempt wholesale generator filings: Docket Numbers: EG11-107-000. Applicants: Trinity Hills Wind Farm LLC. Description: Notice of Self-Certification of Exempt Wholesale Generator Status of Trinity Hills Wind Farm LLC. File Date: 07/15/2011. Accession Number: 20110715...

  4. 43 CFR 3583.4 - Hardrock mineral leases.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 43 Public Lands: Interior 2 2012-10-01 2012-10-01 false Hardrock mineral leases. 3583.4 Section... MANAGEMENT, DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.4 Hardrock mineral leases. ...

  5. 43 CFR 3583.4 - Hardrock mineral leases.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 43 Public Lands: Interior 2 2011-10-01 2011-10-01 false Hardrock mineral leases. 3583.4 Section... MANAGEMENT, DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.4 Hardrock mineral leases. ...

  6. 43 CFR 3583.4 - Hardrock mineral leases.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 43 Public Lands: Interior 2 2014-10-01 2014-10-01 false Hardrock mineral leases. 3583.4 Section... MANAGEMENT, DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.4 Hardrock mineral leases. ...

  7. 43 CFR 3583.4 - Hardrock mineral leases.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 43 Public Lands: Interior 2 2013-10-01 2013-10-01 false Hardrock mineral leases. 3583.4 Section... MANAGEMENT, DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.4 Hardrock mineral leases. ...

  8. Geologic framework, hydrostratigraphy, and ichnology of the Blanco, Payton, and Rough Hollow 7.5-minute quadrangles, Blanco, Comal, Hays, and Kendall Counties, Texas

    USGS Publications Warehouse

    Clark, Allan K.; Golab, James A.; Morris, Robert E.

    2016-09-13

    This report presents the geologic framework, hydro­stratigraphy, and ichnology of the Trinity and Edwards Groups in the Blanco, Payton, and Rough Hollow 7.5-minute quad­rangles in Blanco, Comal, Hays, and Kendall Counties, Texas. Rocks exposed in the study area are of the Lower Cretaceous Trinity Group and lower part of the Fort Terrett Formation of the Lower Cretaceous Edwards Group. The mapped units in the study area are the Hammett Shale, Cow Creek Limestone, Hensell Sand, and Glen Rose Limestone of the Trinity Group and the lower portion of the Fort Terrett Formation of the Edwards Group. The Glen Rose Limestone is composed of the Lower and Upper Members. These Trinity Group rocks con­tain the upper and middle Trinity aquifers. The only remaining outcrops of the Edwards Group are the basal nodular member of the Fort Terrett Formation, which caps several hills in the northern portion of the study area. These rocks were deposited in an open marine to supratidal flats environment. The faulting and fracturing in the study area are part of the Balcones fault zone, an extensional system of faults that generally trends southwest to northeast in south-central Texas.The hydrostratigraphic units of the Edwards and Trinity aquifers were mapped and described using a classification system based on fabric-selective or not-fabric-selective poros­ity types. The only hydrostratigraphic unit of the Edwards aquifer present in the study area is hydrostratigraphic unit VIII. The mapped hydrostratigraphic units of the upper Trinity aquifer are (from top to bottom) the Camp Bullis, upper evaporite, fossiliferous, and lower evaporite which are interval equivalent to the Upper Member of the Glen Rose Limestone. The middle Trinity aquifer encompasses (from top to bottom) the Lower Member of the Glen Rose Limestone, the Hensell Sand Member, and the Cow Creek Limestone Member of the Pearsall Formation. The Lower Member of the Glen Rose Limestone is subdivided into six informal hydro­stratigraphic units (from top to bottom) the Bulverde, Little Blanco, Twin Sisters, Doeppenschmidt, Rust, and Honey Creek hydrostratigraphic units.This study used the ichnofabric index scale to interpret the amount of bioturbation in the field. Most of the geologic units in the study area are assigned to the Cruziana and Thalassinoides ichnofacies consistent with interpretations of a tidal-dominated open marine environment (sublittoral zone). Ichnofossil assemblages are dominated by Thalassinoides networks, but also contain Cruziana, Ophiomorpha, Paleo­phycus, Planolites, and Serpulid traces.

  9. Examples of Mass Wasting and Hemipelagic Sedimentation of Brazos-Trinity Basin #4 and Ursa Basin, Northern Gulf of Mexico

    NASA Astrophysics Data System (ADS)

    Schneider, J.; Moerz, T.; Bartetzko, A.; Iturrino, G. J.; Edeskar, T. M.; Flemings, P. B.; Behrmann, J. H.; John, C. M.

    2005-12-01

    Pleistocene sea level changes influenced the sedimentation history on the passive continental margin of the northern Gulf of Mexico coast. During IODP Expedition 308, the Brazos-Trinity #4 and Ursa Basin were drilled to study -overpressure, fluid flow and deformation processes in a passive margin setting. The Brazos-Trinity Basin #4 is located 200 km south of Galveston, Texas (USA) in ~1400 m water depth below an extended shelf section. Ursa Basin is located 150 km south of New Orleans, Louisiana (USA) in ~1000 m water depth south of the Mississippi river mouth. Despite their similar geotectonic setting both basins show fundamental differences in their style of mass wasting and drape sedimentation. Here we use core descriptions, core photographs, Formation MicroScanner (FMS) data and selected physical properties measurements (magnetic susceptibility, GRAPE density) to illustrate and compare styles of mass wasting and drape sedimentation on selected intervals for the first 4 Marine Isotope Stages. Special emphasis is given to the thickness and frequency of single depositional events. One aim is to estimate the mass wasting / hemipelagic accumulation ratio for both basins and compare it to the average sedimentation rates based on the preliminary shipboard age models. This information will be used in the future to study how sedimentation processes control permeability and pore pressure. In this upcoming project, starting in mid 2006, will use well-logging data to compute continuous porosity, permeability, and pore pressure profiles. These computations require input and reference data obtained from petrophysical and geotechnical core analyses and in situ measurements (e.g. matrix density to calculate porosity from the density log, permeability and porosity to derive porosity-permeability relations, effective stress to calculate pore pressure). Permeability and effective stress will be measured using oedometer tests on undisturbed samples. The detailed lithostratigraphic information, particularly turbidite thickness, and the permeability and pore pressure profiles will be used as input data for one-dimensional modeling of the compression history of two Sites using the civil engineering modeling software PLAXIS.

  10. Compilation of geologic, hydrologic, and ground-water flow modeling information for the Spokane Valley-Rathdrum Prairie aquifer, Spokane County, Washington, and Bonner and Kootenai Counties, Idaho

    USGS Publications Warehouse

    Kahle, Sue C.; Caldwell, Rodney R.; Bartolino, James R.

    2005-01-01

    The U.S. Geological Survey, in cooperation with the Idaho Department of Water Resources and Washington Department of Ecology compiled and described geologic, hydrologic, and ground-water flow modeling information about the Spokane Valley-Rathdrum Prairie (SVRP) aquifer in northern Idaho and northeastern Washington. Descriptions of the hydrogeologic framework, water-budget components, ground- and surface-water interactions, computer flow models, and further data needs are provided. The SVRP aquifer, which covers about 370 square miles including the Rathdrum Prairie, Idaho and the Spokane valley and Hillyard Trough, Washington, was designated a Sole Source Aquifer by the U.S. Environmental Protection Agency in 1978. Continued growth, water management issues, and potential effects on water availability and water quality in the aquifer and in the Spokane and Little Spokane Rivers have illustrated the need to better understand and manage the region's water resources. The SVRP aquifer is composed of sand, gravel, cobbles, and boulders primarily deposited by a series of catastrophic glacial outburst floods from ancient Glacial Lake Missoula. The material deposited in this high-energy environment is coarser-grained than is typical for most basin-fill deposits, resulting in an unusually productive aquifer with well yields as high as 40,000 gallons per minute. In most places, the aquifer is bounded laterally by bedrock composed of granite, metasedimentary rocks, or basalt. The lower boundary of the aquifer is largely unknown except along the margins or in shallower parts of the aquifer where wells have penetrated its entire thickness and reached bedrock or silt and clay deposits. Based on surface geophysics, the thickness of the aquifer is about 500 ft near the Washington-Idaho state line, but more than 600 feet within the Rathdrum Prairie and more than 700 feet in the Hillyard trough based on drilling records. Depth to water in the aquifer is greatest in the northern Rathdrum Prairie (about 500 feet) and least near the city of Spokane along the Spokane River (less than about 50 feet). Ground-water flow is south from near the southern end of Lake Pend Oreille and Hoodoo Valley, through the Rathdrum Prairie, then west toward Spokane. In Spokane, the aquifer splits and water moves north through the Hillyard Trough as well as west through the Trinity Trough. From the Trinity Trough water flows north along the western arm of the aquifer. The aquifer's discharge area is along the Little Spokane River and near Long Lake, Washington. A compilation of estimates of water-budget components, including recharge (precipitation, irrigation, canal leakage, septic tank effluent, inflow from tributary basins, and flow from the Spokane River) and discharge (withdrawals from wells, flow to the Spokane and Little Spokane Rivers, evapotranspiration, and underflow to Long Lake) illustrates that these estimated values should be compared with caution due to several variables including the area and time period of interest as well as methods employed in making the estimates. Numerous studies have documented the dynamic ground-water and surface-water interaction between the SVRP aquifer and the Spokane and Little Spokane Rivers. Gains and losses vary throughout the year, as well as the locations of gains and losses. September 2004 streamflow measurements indicated that the upper reach of the Spokane River between Post Falls and downstream at Flora Road lost 321 cubic feet per second. A gain of 736 cubic feet per second was measured between the Flora Road site and downstream at Green Street Bridge. A loss of 124 cubic feet per second was measured for the reach between the Green Street Bridge and the Spokane River at Spokane gaging station. The river gained about 87 cubic feet per second between the Spokane River at Spokane gaging station and the TJ Meenach Bridge. Overall, the Spokane River gained about 284 cubic feet per second between the Post Falls,

  11. Characterization of geomorphic units in the alluvial valleys and channels of Gulf Coastal Plain rivers in Texas, with examples from the Brazos, Sabine, and Trinity Rivers, 2010

    USGS Publications Warehouse

    Coffman, David K.; Malstaff, Greg; Heitmuller, Franklin T.

    2011-01-01

    The U.S. Geological Survey, in cooperation with the Texas Water Development Board, described and characterized examples of geomorphic units within the channels and alluvial valleys of Texas Gulf Coastal Plain rivers using a geomorphic unit classification scale that differentiates geomorphic units on the basis of their location either outside or inside the river channel. The geomorphic properties of a river system determine the distribution and type of potential habitat both within and adjacent to the channel. This report characterizes the geomorphic units contained in the river channels and alluvial valleys of Texas Gulf Coastal Plain rivers in the context of the River Styles framework. This report is intended to help Texas Instream Flow Program practitioners, river managers, ecologists and biologists, and others interested in the geomorphology and the physical processes of the rivers of the Texas Gulf Coastal Plain (1) gain insights into how geomorphic units develop and adjust spatially and temporally, and (2) be able to recognize common geomorphic units from the examples cataloged in this report. Recent aerial imagery (high-resolution digital orthoimagery) collected in 2008 and 2009 were inspected by using geographic information system software to identify representative examples of the types of geomorphic units that occurred in the study area. Geomorphic units outside the channels of Texas Gulf Coastal Plain rivers are called \\"valley geomorphic units\\" in this report. Valley geomorphic units for the Texas Gulf Coastal Plain rivers described in this report are terraces, flood plains, crevasses and crevasse splays, flood-plain depressions, tie channels, tributaries, paleochannels, anabranches, distributaries, natural levees, neck cutoffs, oxbow lakes, and constructed channels. Channel geomorphic units occur in the river channel and are subject to frequent stresses associated with flowing water and sediment transport; they adjust (change) relatively quickly in response to short-term variations in flow. Channel geomorphic units described in this report are channel banks, benches and ledges, bank failures, point bars, cross-bar channels, channel bars, exposed bedrock, pools, runs, and crossovers.

  12. The Case of Trinity University: Collegial Rift, Mission Drift, Corporate Shift

    ERIC Educational Resources Information Center

    Twale, Darla J.; Place, A. William

    2006-01-01

    The case of Trinity University is an ideal way to introduce graduate students in educational leadership preparation programs to the university culture and how it shapes the graduate curriculum, faculty expectations for student outcomes, and professional socialization processes. Master's and doctoral students who take courses related to cultural…

  13. 76 FR 30902 - Shasta Lake Management Unit, Shasta-Trinity National Forest; California; Green-Horse Habitat...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-27

    ... management strategy to allow modification of treatments if necessary during implementation. A project-level... to 15 tons per acre for those two management prescriptions. This project-level amendment is proposed... Management Unit, Shasta-Trinity National Forest; California; Green-Horse Habitat Restoration and Maintenance...

  14. A program to assess a thermal discharge on Trinity Bay, Texas

    NASA Technical Reports Server (NTRS)

    Zaitzeff, J. B.; Whitehead, V. S.

    1972-01-01

    The application of a two dimensional mathematical model to the analysis of the thermal discharge to verify its ability to predict the temperature distribution of Trinity Bay in the vicinity of the water outfall. Basic data consist of aerial thermal infrared and in situ measurements.

  15. 43 CFR 3583.1-1 - Leasable minerals.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 43 Public Lands: Interior 2 2011-10-01 2011-10-01 false Leasable minerals. 3583.1-1 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-1 Leasable minerals. Except as otherwise...

  16. 43 CFR 3583.1-2 - Hardrock minerals.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 43 Public Lands: Interior 2 2013-10-01 2013-10-01 false Hardrock minerals. 3583.1-2 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-2 Hardrock minerals. This subpart governs the...

  17. 43 CFR 3583.1-2 - Hardrock minerals.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 43 Public Lands: Interior 2 2011-10-01 2011-10-01 false Hardrock minerals. 3583.1-2 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-2 Hardrock minerals. This subpart governs the...

  18. 43 CFR 3583.1-2 - Hardrock minerals.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 43 Public Lands: Interior 2 2014-10-01 2014-10-01 false Hardrock minerals. 3583.1-2 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-2 Hardrock minerals. This subpart governs the...

  19. 43 CFR 3583.1-1 - Leasable minerals.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 43 Public Lands: Interior 2 2012-10-01 2012-10-01 false Leasable minerals. 3583.1-1 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-1 Leasable minerals. Except as otherwise...

  20. 43 CFR 3583.1-1 - Leasable minerals.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 43 Public Lands: Interior 2 2014-10-01 2014-10-01 false Leasable minerals. 3583.1-1 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-1 Leasable minerals. Except as otherwise...

  1. 43 CFR 3583.1-1 - Leasable minerals.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 43 Public Lands: Interior 2 2013-10-01 2013-10-01 false Leasable minerals. 3583.1-1 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-1 Leasable minerals. Except as otherwise...

  2. 43 CFR 3583.1-2 - Hardrock minerals.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 43 Public Lands: Interior 2 2012-10-01 2012-10-01 false Hardrock minerals. 3583.1-2 Section 3583.1..., DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) SPECIAL LEASING AREAS Shasta and Trinity Units of the Whiskeytown-Shasta-Trinity National Recreation Area § 3583.1-2 Hardrock minerals. This subpart governs the...

  3. Trinity's "Legal Detectives" Stalk Jack the Ripper: Would Socrates Have Approved?

    ERIC Educational Resources Information Center

    Mangan, Katherine S.

    1989-01-01

    Trinity University's philosophy laboratory provides a think tank for philosophy students, allowing them to practice such skills as logic, critical reasoning, and the application of moral responsibility in decision-making by applying their skills to real-life situations. Students, selected as fellows and paid, are divided into teams for projects.…

  4. Certificated Master Contract Agreement for 1987-90, Shasta-Tehama-Trinity Joint Community College District.

    ERIC Educational Resources Information Center

    Shasta-Tehama-Trinity Joint Community Coll. District, Redding, CA.

    This collective bargaining agreement between the Shasta-Tehama-Trinity Joint Community College District and the Shasta College Faculty Association establishes conditions of employment for all full- and part-time regular or contracted certificated employees of the district. The articles of the agreement set forth provisions related to: (1)…

  5. 75 FR 62424 - EDS, an HP Company (Re-Branded as HP-Enterprise Services) Including On-Site Workers From: Abel...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-08

    ... Floyd and Company, Trinity Government SYS a Private Co, Verizon Network Integration Corp, Vision... Provider Inc., Teksystems, The Experts Inc., TM Floyd and Company, Trinity Government SYS a Private Co... Compuware Corp Comsys Information Technology SVC, Diversified Systems Inc., E- Corn LLC, Farrington...

  6. Summary of floods in the United States during 1959

    USGS Publications Warehouse

    Hendricks, E.L.

    1964-01-01

    This report describes the most outstanding floods that occurred in the United States during 1959.The floods of January-February in Ohio and adjacent States were the most outstanding floods of the year 1959 with respect to area affected, number of streams having maximum discharge of record, rare occurrence of peaks, and great amount of damage caused.Floods in the Rock River basin in southern Wisconsin and northern Illinois during late March and early April produced maximum stages and discharges on many streams. The Rock River at Watertown, Wisc., was the highest in 40 years and Lake Mendota at Madison, Wisc., reached its maximum stage since 1916. Many towns were flooded and thousands of persons were forced from their homes.What is possibly the greatest 24-hour rainfall ever to be noted in Iowa fell August 5-6. The resulting floods inundated an 80-block area in Fort Madison, Iowa, and caused damage estimated at $600,000 in the city. A total of 130,000 acres of land was inundated.Major floods occurred in Texas in the upper Trinity, middle Brazos, middle Colorado, upper Guadalupe, and upper Nueces River basins in early October, following heavy general rains that covered most of Texas. The peak stage on North Bosque River near Clifton was the highest known since 1887. More than \\$1 million in damage was reported for Houston.In addition to the 4 floods mentioned above, 22 others of lesser magnitude are considered important enough to report in this annual summary.

  7. Confirmatory Factor Analysis of the Trinity Inventory of Precursors to Suicide (TIPS) and Its Relationship to Hopelessness and Depression

    ERIC Educational Resources Information Center

    Smyth, Caroline L.; MacLachlan, Malcolm

    2005-01-01

    Numerous existing measures assess attitudes toward suicide yet fail to account for contextual factors. The Trinity Inventory of Precursors to Suicide (TIPS) is presented as an alternative, with implications for the development of prevention programs. Having previously reported exploratory analysis of the TIPS; confirmatory factor analysis and…

  8. Access to NMR Spectroscopy for Two-Year College Students: The NMR Site at Trinity University

    ERIC Educational Resources Information Center

    Mills, Nancy S.; Shanklin, Michael

    2011-01-01

    Students at two-year colleges and small four-year colleges have often obtained their exposure to NMR spectroscopy through "canned" spectra because the cost of an NMR spectrometer, particularly a high-field spectrometer, is prohibitive in these environments. This article describes the design of a NMR site at Trinity University in which…

  9. 78 FR 51741 - Notice of Application for Withdrawal and Opportunity for Public Meeting; California

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-21

    ... approximately 541 acres of National Forest System lands in the Shasta-Trinity National Forest for a period of 20..., Shasta-Trinity National Forest Headquarters, 530-226-2500 during regular business hours, 8 a.m. to 4:30 p... County, California. The above-described lands being National Forest System lands, the Secretary shall...

  10. 1. INTERIOR VIEW WITH NAVE, BARREL VAULTED SOLEA, ICONOSTAS WITH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. INTERIOR VIEW WITH NAVE, BARREL VAULTED SOLEA, ICONOSTAS WITH ICON AND SANCTUARY. IN ARCH ABOVE THE SANCTUARY IS THE TABLE OF ABRAHAM. THE ICONOSTAS INCLUDES ICONS OF THE ARCHANGEL MICHAEL, THE HOLY TRINITY, MOTHER OF GOD HOLDING THE CHRIST CHILD, JESUS. - Holy Trinity-Holy Cross Greek Orthodox Church, 200 Nineteenth Street South, Birmingham, Jefferson County, AL

  11. Breaking the Bonds of Poverty: A Motivational Profile of Selected Welfare Single Mothers Entering College.

    ERIC Educational Resources Information Center

    Cheng, Barbara Davis

    Single mothers on welfare were recruited for a program at Trinity College of Vermont using a variety of methods: newspaper advertisements, admission office applicants, and welfare office solicitation. Eligible for the program were single mothers on welfare meeting all Trinity College entrance requirements and having an interest in and commitment…

  12. Establishing a Mathematics-Enrichment Community in a Multi-School Environment

    ERIC Educational Resources Information Center

    Thomson, Ian

    2005-01-01

    Trinity College is a low-fee independent school in Gawler, South Australia. The college has an enrolment of 3500 students of varied socioeconomic mix, drawn from the northern suburbs of Adelaide. Trinity has recently been restructured into four R-10 schools and one senior school for Years 11-13. The schools share a common mathematics curriculum.…

  13. Unholy Trinity? Secularism Institute Renews Liberal Arts Curriculum

    ERIC Educational Resources Information Center

    Keysar, Ariela

    2010-01-01

    Secularism is controversial in today's political debates, championed by some and vilified by others. So when Trinity College in Hartford, Conn., opened a center for the study of secularism in September 2005, some people worried that it could become a source of friction on campus--yet another battleground in the culture wars that are wreaking havoc…

  14. Sediment Flux from Source to Sink in the Brazos-Trinity Depositional System

    NASA Astrophysics Data System (ADS)

    Pirmez, C.; Prather, B. E.; Droxler, A.; Ohayer, W.

    2007-12-01

    During the Late Pleistocene a series of intra-slope basins offshore Texas in the Western Gulf of Mexico, received a high influx of clastic sediments derived primarily from the Brazos, Trinity, and Mississippi rivers. Sediment failures initiated at shelf edge deltas resulted in mass flows that negotiate a complex slope and basin topography caused by salt tectonics. Sediment locally fill ponded basins eventually spilling into subsequent basins downstream. Interaction between these flows and slope topography leads to a complex partitioning of sediment over time and space that can only be unraveled with high-resolution data. The availability of system-wide coverage with conventional 3d seismic surveys, a dense grid of high-resolution 2d seismic lines and cored wells from two of the four linked intraslope basins, makes this locale an ideal area to investigate the transfer of sediment across the continental margin, from river sources to the ultimate sink within an enclosed intraslope basin. Data from IODP Expedition 308 and industry wells, combined with data from previous studies on the shelf constrain an integrated seismic stratigraphic framework for the depositional system. Numerous radiocarbon age dates coupled with multiple stratigraphic tools (seismic-, bio-, and tephra correlations and oxygen isotope measurements) provide an unprecedented high-resolution chronology that allow for detailed estimation of sedimentation rates in this turbidite system and calculation of sediment volumes in each of the basins over time intervals of a few millennia during the late Pleistocene. We find that rates of sedimentation exceed 10 m/kyr during some periods of ultra-fast turbidite accumulation. Rates of channel incision and tectonic subsidence can also be calculated and are comparable to the rapid accumulation rates measured in the basin fill. Our observations indicate that while sealevel changes exert a first order control on delivery of sediment to the basins, the sedimentary record suggests that delta dynamics, basin tectonics and the interaction between gravity flows and basin topography are equally important in determining the distribution of sediments in time and space along this depositional system.

  15. "A Victim of Its Own Success"? The Diploma in Addiction Studies at Trinity College Dublin

    ERIC Educational Resources Information Center

    Woods, Marguerite; Butler, Shane

    2011-01-01

    This article reviews and reflects on the Diploma in Addiction Studies: a 1-year, full-time programme taught at the School of Social Work and Social Policy in Trinity College Dublin since the academic year 1983/1984, which has recently had its external funding withdrawn. The programme was aimed at multidisciplinary classes, including students from…

  16. "The Problem of Trinity College Dublin": A Historical Perspective on Rationalisation in Higher Education in Ireland

    ERIC Educational Resources Information Center

    Walsh, John

    2014-01-01

    This paper offers a historical perspective on government policies for the rationalisation of higher education (HE) in Ireland through a critical re-appraisal of the initiative for "merger" of Trinity College and University College Dublin. The initiative launched by Donogh O'Malley in 1967 was the first significant attempt by an Irish…

  17. Seeing the Light: Visibility of the July '45 Trinity Atomic Bomb Test from the Inner Solar System

    ERIC Educational Resources Information Center

    Reed, B. Cameron

    2006-01-01

    In his "The Making of the Atomic Bomb," Richard Rhodes remarks of the July 16, 1945, Trinity atomic bomb test in New Mexico that "had astronomers been watching they could have seen it reflected from the moon, literal moonshine," an allusion to Ernest Rutherford's famous dismissal of the prospect of atomic energy. Investigating…

  18. LLNL Mercury Project Trinity Open Science Final Report

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Dawson, Shawn A.

    The Mercury Monte Carlo particle transport code is used to simulate the transport of radiation through urban environments. These challenging calculations include complicated geometries and require significant computational resources to complete. In the proposed Trinity Open Science calculations, I will investigate computer science aspects of the code which are relevant to convergence of the simulation quantities with increasing Monte Carlo particle counts.

  19. Factors regulating early life history dispersal of Atlantic cod (Gadus morhua) from coastal Newfoundland.

    PubMed

    Stanley, Ryan R E; deYoung, Brad; Snelgrove, Paul V R; Gregory, Robert S

    2013-01-01

    To understand coastal dispersal dynamics of Atlantic cod (Gadus morhua), we examined spatiotemporal egg and larval abundance patterns in coastal Newfoundland. In recent decades, Smith Sound, Trinity Bay has supported the largest known overwintering spawning aggregation of Atlantic cod in the region. We estimated spawning and dispersal characteristics for the Smith Sound-Trinity Bay system by fitting ichthyoplankton abundance data to environmentally-driven, simplified box models. Results show protracted spawning, with sharply increased egg production in early July, and limited dispersal from the Sound. The model for the entire spawning season indicates egg export from Smith Sound is 13%•day(-1) with a net mortality of 27%•day(-1). Eggs and larvae are consistently found in western Trinity Bay with little advection from the system. These patterns mirror particle tracking models that suggest residence times of 10-20 days, and circulation models indicating local gyres in Trinity Bay that act in concert with upwelling dynamics to retain eggs and larvae. Our results are among the first quantitative dispersal estimates from Smith Sound, linking this spawning stock to the adjacent coastal waters. These results illustrate the biophysical interplay regulating dispersal and connectivity originating from inshore spawning of coastal northwest Atlantic.

  20. Geohydrologic Framework of the Edwards and Trinity Aquifers, South-Central Texas

    USGS Publications Warehouse

    Blome, Charles D.; Faith, Jason R.; Ozuna, George B.

    2007-01-01

    This five-year USGS project, funded by the National Cooperative Geologic Mapping Program, is using multidisciplinary approaches to reveal the surface and subsurface geologic architecture of two important Texas aquifers: (1) the Edwards aquifer that extends from south of Austin to west of San Antonio and (2) the southern part of the Trinity aquifer in the Texas Hill Country west and south of Austin. The project's principal areas of research include: Geologic Mapping, Geophysical Surveys, Geochronology, Three-dimensional Modeling, and Noble Gas Geochemistry. The Edwards aquifer is one of the most productive carbonate aquifers in the United States. It also has been designated a sole source aquifer by the U.S. Environmental Protection Agency and is the primary source of water for San Antonio, America's eighth largest city. The Trinity aquifer forms the catchment area for the Edwards aquifer and it intercepts some surface flow above the Edwards recharge zone. The Trinity may also contribute to the Edwards water budget by subsurface flow across formation boundaries at considerable depths. Dissolution, karst development, and faulting and fracturing in both aquifers directly control aquifer geometry by compartmentalizing the aquifer and creating unique ground-water flow paths.

  1. Recent Performance Results of VPIC on Trinity

    NASA Astrophysics Data System (ADS)

    Nystrom, W. D.; Bergen, B.; Bird, R. F.; Bowers, K. J.; Daughton, W. S.; Guo, F.; Le, A.; Li, H.; Nam, H.; Pang, X.; Stark, D. J.; Rust, W. N., III; Yin, L.; Albright, B. J.

    2017-10-01

    Trinity is a new DOE compute resource now in production at Los Alamos National Laboratory. Trinity has several new and unique features including two compute partitions, one with dual socket Intel Haswell Xeon compute nodes and one with Intel Knights Landing (KNL) Xeon Phi compute nodes, use of on package high bandwidth memory (HBM) for KNL nodes, ability to configure KNL nodes with respect to HBM model and on die network topology in a variety of operational modes at run time, and use of solid state storage via burst buffer technology to reduce time required to perform I/O. An effort is in progress to optimize VPIC on Trinity by taking advantage of these new architectural features. Results of work will be presented on performance of VPIC on Haswell and KNL partitions for single node runs and runs at scale. Results include use of burst buffers at scale to optimize I/O, comparison of strategies for using MPI and threads, performance benefits using HBM and effectiveness of using intrinsics for vectorization. Work performed under auspices of U.S. Dept. of Energy by Los Alamos National Security, LLC Los Alamos National Laboratory under contract DE-AC52-06NA25396 and supported by LANL LDRD program.

  2. Geologic and hydrostratigraphic map of the Anhalt, Fischer, and Spring Branch 7.5-minute quadrangles, Blanco, Comal, and Kendall Counties, Texas

    USGS Publications Warehouse

    Clark, Allan K.; Robert R. Morris,

    2015-01-01

    The hydrostratigraphic units of the Edwards and Trinity aquifers have been mapped and described herein using a classification system developed by Choquette and Pray (1970), which is based on porosity types being fabric or not-fabric selective. The naming of hydrostratigraphic units is also based on preexisting names and topographic or historical features that occur in outcrop. The only hydrostratigraphic unit of the Edwards aquifer present in the study area is VIII hydrostratigraphic unit. The mapped hydrostratigraphic units of the upper Trinity aquifer are, from top to bottom: the cavernous, Camp Bullis, upper evaporite, fossiliferous, and lower evaporite and they are interval equivalent to the upper member of the Glen Rose Limestone. The middle Trinity aquifer (interval equivalent to the lower member of the Glen Rose Limestone) contains, from top to bottom: the Bulverde, Little Blanco, Twin Sisters, Doeppenschmidt, Rust, and Honey Creek hydrostratigraphic units. The lower part of the middle Trinity aquifer is formed by the Hensell, Cow Creek, and Hammett hydrostratigraphic units which are interval equivalent to the Hensell Sand Member, the Cow Creek Limestone, and the Hammett Shale Member, respectively, of the Pearsall Formation.

  3. Construction, calibration, and validation of the RBM10 water temperature model for the Trinity River, northern California

    USGS Publications Warehouse

    Jones, Edward C.; Perry, Russell W.; Risley, John C.; Som, Nicholas A.; Hetrick, Nicholas J.

    2016-03-31

    Augmentation scenarios were based on historical hydrological and meteorological data, combined with prescribed flow and temperature releases from Lewiston Dam provided by the Bureau of Reclamation. Water releases were scheduled to achieve targeted flows of 2,500, 2,800, and 3,200 cubic feet per second in the lower Klamath River from mid-August through late September, coinciding with the upstream migration of adult fall-run Chinook salmon (Oncorhynchus tshawytscha). Water temperatures simulated at river mile 5.7 on the Klamath River showed a 5 °C decrease from the No Action historical baseline, which was near or greater than 23 °C when augmentation began in mid-August. Thereafter, an approximate 1 °C difference among augmentation scenarios emerged, with the decrease in water temperature commensurate to the level of augmentation. All augmentation scenarios simulated water temperatures equal to or less than 21 °C from mid-August through late September. Water temperatures equal to or greater than 23 °C are of particular interest because of a thermal threshold known to inhibit upstream migration of salmon. When temperatures exceed this approximate 23 °C threshold, Chinook salmon are known to congregate in high densities in thermal refugias and show extended residence times, which can potentially trigger epizootic outbreaks such as of Ichthyophthirius multifiliis (“Ich”) and Flavobacterium columnare (“Columnaris”) that were the causative factors of the Klamath River fish kill in 2002. A model with the ability to simulate water temperatures in response to management actions at the basin scale is a valuable asset for water managers who must make decisions about how best to use limited water resources, which directly affect the state of fisheries in the Klamath Basin.

  4. De novo transcript sequence reconstruction from RNA-Seq: reference generation and analysis with Trinity

    PubMed Central

    Yassour, Moran; Grabherr, Manfred; Blood, Philip D.; Bowden, Joshua; Couger, Matthew Brian; Eccles, David; Li, Bo; Lieber, Matthias; MacManes, Matthew D.; Ott, Michael; Orvis, Joshua; Pochet, Nathalie; Strozzi, Francesco; Weeks, Nathan; Westerman, Rick; William, Thomas; Dewey, Colin N.; Henschel, Robert; LeDuc, Richard D.; Friedman, Nir; Regev, Aviv

    2013-01-01

    De novo assembly of RNA-Seq data allows us to study transcriptomes without the need for a genome sequence, such as in non-model organisms of ecological and evolutionary importance, cancer samples, or the microbiome. In this protocol, we describe the use of the Trinity platform for de novo transcriptome assembly from RNA-Seq data in non-model organisms. We also present Trinity’s supported companion utilities for downstream applications, including RSEM for transcript abundance estimation, R/Bioconductor packages for identifying differentially expressed transcripts across samples, and approaches to identify protein coding genes. In an included tutorial we provide a workflow for genome-independent transcriptome analysis leveraging the Trinity platform. The software, documentation and demonstrations are freely available from http://trinityrnaseq.sf.net. PMID:23845962

  5. Helicopter Electromagnetic and Magnetic Surveys of the Upper and Middle Zones of the Trinity Aquifer, Uvalde and Bexar Counties, Texas

    NASA Astrophysics Data System (ADS)

    Smith, D. V.; Blome, C. D.; Smith, B. D.; Clark, A. C.

    2009-12-01

    Detailed helicopter electromagnetic and magnetic surveys (HEM) were conducted in northern Uvalde and Bexar Counties, Texas, as part of a geologic mapping and hydrologic study being conducted by the U.S. Geological Survey (USGS). The aquifers of the Lower Cretaceous Trinity Group (collectively termed the Trinity aquifer) are an important regional water source in the Hill Country of south-central Texas. Rock units comprising the middle aquifer segment are represented by the lower member of the Glen Rose Formation and the Cow Creek Limestone and Hensel Sandstone members of the Pearsall Formation. The lower Trinity hydrologic segment is composed of the Hosston and Sligo Limestones and is confined by the overlying Hammet Shale. Karst features commonly occur in the Trinity Group because of the dissolution of gypsum- and anhydrite-rich beds. Faults and fractures have not been sufficiently analyzed to evaluate the effects these structures have on inter- and intra-formational groundwater flow. The survey in the north Seco Creek area covers the recharge zone of the Edwards aquifer and part of the catchment zone composed of the upper Trinity segment. These data augment the scant geologic mapping in the area by delineating faults, collapse features, and hydrostratigraphic units. The HEM survey in northern Bexar County covered the Camp Stanley Storage Activity, the Camp Bullis Training Site, parts of the recharge zone of the Edwards aquifer south of the military bases, and part of Cibolo Creek to the north. Basic line spacing was 200 meters using six frequencies. In-fill lines were flown with a spacing of 100 meters in the central part of the study area to better resolve geologic structures and karst features. The data processing took into account high EM interference and cultural noise. Apparent resistivity (ρa) maps are used in interpretation of geologic structures, trends, and in the identification of electrical properties of lithologic units. The ρa maps show the northwest trending faults of the Balcones fault zone as well as oblique trending cross faults. Though many of the major faults had been identified in previous geologic mapping, other possibly significant faults were not recognized from traditional techniques. High resistivities within the Glen Rose Limestone are indicative of more competent lithologies which have a greater limestone content. During the evolution of the groundwater system the limestone units are most likely to have developed secondary porosity conducive to establishing flow paths. In contrast, lower resistivities are associated with clay, marl, and mudstone units which have lower porosity and permeability. Resistivity depth sections along flight lines and 3D visualization of resistive zones define reefal structures in the middle Trinity segment. Detailed hydrogeologic mapping and HEM depth modeling illustrate the approach to be taken in future studies of the Trinity.

  6. Extensional faulting in the southern Klamath Mountains, California

    USGS Publications Warehouse

    Schweickert, R.A.; Irwin, W.P.

    1989-01-01

    Large northeast striking normal faults in the southern Klamath Mountains may indicate that substantial crustal extension occurred during Tertiary time. Some of these faults form grabens in the Jurassic and older bedrock of the province. The grabens contain continental Oligocene or Miocene deposits (Weaverville Formation), and in two of them the Oligocene or Miocene is underlain by Lower Cretaceous marine formations (Great Valley sequence). At the La Grange gold placer mine the Oligocene or Miocene strata dip northwest into the gently southeast dipping mylonitic footwall surface of the La Grange fault. The large normal displacement required by the relations at the La Grange mine is also suggested by omission of several kilometers of structural thickness of bedrock units across the northeast continuation of the La Grange fault, as well as by significant changes in bedrock across some northeast striking faults elsewhere in the Central Metamorphic and Eastern Klamath belts. The Trinity ultramafic sheet crops out in the Eastern Klamath terrane as part of a broad northeast trending arch that may be structurally analogous to the domed lower plate of metamorphic core complexes found in eastern parts of the Cordillera. The northeast continuation of the La Grange fault bounds the southeastern side of the Trinity arch in the Eastern Klamath terrane and locally cuts out substantial lower parts of adjacent Paleozoic strata of the Redding section. Faults bounding the northwestem side of the Trinity arch generally trend northeast and juxtapose stacked thrust sheets of lower Paleozoic strata of the Yreka terrane against the Trinity ultramafic sheet. Geometric relations suggest that the Tertiary extension of the southern Klamath Mountains was in NW-SE directions and that the Redding section and the southern part of the Central Metamorphic terrane may be a large Tertiary allochthon detached from the Trinity ultramafic sheet. Paleomagnetic data indicate a lack of rotation about a vertical axis during the extension. We propose that the Trinity ultramafic sheet is structurally analogous to a metamorphic core complex; if so, it is the first core complex to be described that involves ultramafic rocks. We infer that Mesozoic terrane accretion produced a large gravitational instability in the crust that spread laterally during Tertiary extension

  7. Secondary Channel Bifurcation Geometry: A Multi-dimensional Problem

    NASA Astrophysics Data System (ADS)

    Gaeuman, D.; Stewart, R. L.

    2017-12-01

    The construction of secondary channels (or side channels) is a popular strategy for increasing aquatic habitat complexity in managed rivers. Such channels, however, frequently experience aggradation that prevents surface water from entering the side channels near their bifurcation points during periods of relatively low discharge. This failure to maintain an uninterrupted surface water connection with the main channel can reduce the habitat value of side channels for fish species that prefer lotic conditions. Various factors have been proposed as potential controls on the fate of side channels, including water surface slope differences between the main and secondary channels, the presence of main channel secondary circulation, transverse bed slopes, and bifurcation angle. A quantitative assessment of more than 50 natural and constructed secondary channels in the Trinity River of northern California indicates that bifurcations can assume a variety of configurations that are formed by different processes and whose longevity is governed by different sets of factors. Moreover, factors such as bifurcation angle and water surface slope vary with discharge level and are continuously distributed in space, such that they must be viewed as a multi-dimensional field rather than a single-valued attribute that can be assigned to a particular bifurcation.

  8. Effect of ultrasonic tip and root-end filling material on bond strength.

    PubMed

    Vivan, Rodrigo Ricci; Guerreiro-Tanomaru, Juliane Maria; Bernardes, Ricardo Affonso; Reis, José Mauricio Santos Nunes; Hungaro Duarte, Marco Antonio; Tanomaru-Filho, Mário

    2016-11-01

    The objective of this study was to evaluate the bond strength of three root-end filling materials (MTAA-MTA Angelus, MTAS-experimental MTA Sealer, and ZOE- zinc oxide and eugenol cement) in retrograde preparations performed with different ultrasonic tips (CVD, Trinity, and Satelec). Ninety 2-mm root sections from single-rooted human teeth were used. The retrograde cavities were prepared by using the ultrasonic tips, coupled to a device for position standardization. The specimens were randomly divided into nine groups: CVD MTAA; CVD MTAS; CVD ZOE; Trinity MTAA; Trinity MTAS; Trinity ZOE; Satelec MTAA; Satelec MTAS; Satelec ZOE. Each resin disc/dentin/root-end filling material was placed in the machine to perform the push-out test. The specimens were examined in a stereomicroscope to evaluate the type of failure. Data were submitted to statistical analysis using ANOVA and Tukey tests (α = 0.05). The highest bond strength was observed for the CVD tip irrespective of the material used (P < 0.05). There was no significant difference for the Trinity TU-18 diamond and S12 Satelec tips (P > 0.05). MTAA and MTAS showed highest bond strength. The most common type of failure was adhesion between the filling material and dentin wall, except for ZOE, where mixed failure was predominant. The CVD tip favored higher bond strength of the root-end filling materials. MTA Angelus and experimental MTAS presented bond strength to dentin prepared with ultrasonic tips. Root-end preparation with the CVD tip positively influences the bond strength of root-end filling materials. MTA Angelus and experimental MTAS present bond strength to be used as root-end filling materials.

  9. LAMMPS Project Report for the Trinity KNL Open Science Period.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Moore, Stan Gerald; Thompson, Aidan P.; Wood, Mitchell

    LAMMPS is a classical molecular dynamics code (lammps.sandia.gov) used to model materials science problems at Sandia National Laboratories and around the world. LAMMPS was one of three Sandia codes selected to participate in the Trinity KNL (TR2) Open Science period. During this period, three different problems of interest were investigated using LAMMPS. The first was benchmarking KNL performance using different force field models. The second was simulating void collapse in shocked HNS energetic material using an all-atom model. The third was simulating shock propagation through poly-crystalline RDX energetic material using a coarse-grain model, the results of which were used inmore » an ACM Gordon Bell Prize submission. This report describes the results of these simulations, lessons learned, and some hardware issues found on Trinity KNL as part of this work.« less

  10. Riparian Systems and Forest Management—Changes in Harvesting Techniques and their Effects on Decomposed Granitic Soils

    Treesearch

    John W. Bramhall

    1989-01-01

    In the 1950s, timber on steep granitic terrain in Trinity County, California was harvested by using the logging techniques of the time. After Trinity Dam was built in the 1960s, it became evident these techniques were not suited to quality riparian habitat and healthy anadromous fisheries. Since adoption of the Z'berg-Nejedly Forest Practice Act in 1973, efforts...

  11. Map Showing Geology and Hydrostratigraphy of the Edwards Aquifer Catchment Area, Northern Bexar County, South-Central Texas

    USGS Publications Warehouse

    Clark, Amy R.; Blome, Charles D.; Faith, Jason R.

    2009-01-01

    Rock units forming the Edwards and Trinity aquifers in northern Bexar County, Texas, are exposed within all or parts of seven 7.5-minute quadrangles: Bulverde, Camp Bullis, Castle Hills, Helotes, Jack Mountain, San Geronimo, and Van Raub. The Edwards aquifer is the most prolific ground-water source in Bexar County, whereas the Trinity aquifer supplies water for residential, commercial, and industrial uses for areas north of the San Antonio. The geologic map of northern Bexar County shows the distribution of informal hydrostratigraphic members of the Edwards Group and the underlying upper member of the Glen Rose Limestone. Exposures of the Glen Rose Limestone, which forms the Trinity aquifer alone, cover approximately 467 km2 in the county. This study also describes and names five informal hydrostratigraphic members that constitute the upper member of the Glen Rose Limestone; these include, in descending order, the Caverness, Camp Bullis, Upper evaporite, Fossiliferous, and Lower evaporite members. This study improves our understanding of the hydrogeologic connection between the two aquifers as it describes the geology that controls the infiltration of surface water and subsurface flow of ground water from the catchment area (outcropping Trinity aquifer rocks) to the Edwards water-bearing exposures.

  12. Factors Regulating Early Life History Dispersal of Atlantic Cod (Gadus morhua) from Coastal Newfoundland

    PubMed Central

    Stanley, Ryan R. E.; deYoung, Brad; Snelgrove, Paul V. R.; Gregory, Robert S.

    2013-01-01

    To understand coastal dispersal dynamics of Atlantic cod (Gadus morhua), we examined spatiotemporal egg and larval abundance patterns in coastal Newfoundland. In recent decades, Smith Sound, Trinity Bay has supported the largest known overwintering spawning aggregation of Atlantic cod in the region. We estimated spawning and dispersal characteristics for the Smith Sound-Trinity Bay system by fitting ichthyoplankton abundance data to environmentally-driven, simplified box models. Results show protracted spawning, with sharply increased egg production in early July, and limited dispersal from the Sound. The model for the entire spawning season indicates egg export from Smith Sound is 13%•day−1 with a net mortality of 27%•day–1. Eggs and larvae are consistently found in western Trinity Bay with little advection from the system. These patterns mirror particle tracking models that suggest residence times of 10–20 days, and circulation models indicating local gyres in Trinity Bay that act in concert with upwelling dynamics to retain eggs and larvae. Our results are among the first quantitative dispersal estimates from Smith Sound, linking this spawning stock to the adjacent coastal waters. These results illustrate the biophysical interplay regulating dispersal and connectivity originating from inshore spawning of coastal northwest Atlantic. PMID:24058707

  13. Lead isotopic composition of trinitite melt glass: evidence for the presence of Canadian industrial lead in the first atomic weapon test.

    PubMed

    Bellucci, Jeremy J; Simonetti, Antonio; Wallace, Christine; Koeman, Elizabeth C; Burns, Peter C

    2013-08-06

    The Pb isotopic compositions for 51 spots of melt glass in 11 samples of trinitite have been determined by laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS). Trinitite glass yields a large range of Pb isotopic compositions (i.e., (206)Pb/(204)Pb = 17.08-19.04), which reflect mixing between industrial Pb from materials used in the Trinity test and natural geologic components. Areas within trinitite melt glass containing high concentrations of both Cu and Pb, which are derived from the bomb and blast site-related components, were used for delineating the Pb isotopic composition corresponding to the anthropogenic Pb component. Comparison between the isotopic composition estimated here for the industrial Pb used in the Trinity test and those from known Pb deposits worldwide indicates close agreement with ore from the Buchans mine (Newfoundland, Canada). The Buchans mine was active during the time of the Trinity test and was operated by the American Smelting and Refining Company, which could have provided the Pb used in the test. The industrial Pb used in the Trinity test materials is not documented in the literature (or declassified) but could have been present in bricks, solder, pigs, or some other anthropogenic component related to the experiment.

  14. Reconnaissance of acid drainage sources and preliminary evaluation of remedial alternatives at the Copper Bluff mine, Hoopa Valley Reservation, California

    USGS Publications Warehouse

    Alpers, Charles N.; Hunerlach, Michael P.; Hamlin, Scott N.; Zierenberg, Robert A.

    2003-01-01

    Acidic drainage from the inactive Copper Bluff mine cascades down a steep embankment into the Trinity River, on the Hoopa Valley Reservation in northern California. The Copper Bluff mine produced about 100,000 tons of sulfide-bearing copper-zinc-gold-silver ore during 1957–1962. This report summarizes the results of a water-resources investigation begun by the U.S. Geological Survey in 1994 with the overall objective of gathering sufficient geochemical, hydrologic, and geologic information so that a sound remediation strategy for the Copper Bluff mine could be selected and implemented by the Hoopa Valley Tribe. This study had the following specific objectives: (1) monitor the quality and quantity of the mine discharge, (2) determine seasonal variability of metal concentrations and loads, (3) map and sample the underground mine workings to determine sources of flow and suitability of mine plugging options, and (4) analyze the likely consequences of various remediation and treatment options.Analysis of weekly water samples of adit discharge over parts of two wet seasons (January to July 1995 and October 1995 to May 1996) shows that dissolved copper (Cu) and zinc (Zn) concentrations (in samples filtered with 0.20-micrometer membranes) varied systematically in a seasonal pattern. Metal concentrations increased dramatically in response to the first increase in discharge, or first flush, early in the wet season. The value of Zn/Cu in the adit discharge exhibited systematic seasonal variations; an annual Zn/Cu cycle was observed, beginning with values between 3 and 5 during the main part of the wet season, rising to values between 6 and 10 during the period of lowest discharge late in the dry season, and then dropping dramatically to values less than 3 during the first-flush period. Values of pH were fairly constant in the range of 3.1 to 3.8 throughout the wet season and into the beginning of the dry season, but rose to values between 4.5 and 5.6 during the period of lowest discharge, from October to early December 1995.Underground reconnaissance was conducted once during dry-season conditions (September 1995) and twice during wet-season conditions (March 1995 and March 1996). The main tunnel was accessed to a distance of about 600 feet from the portal entrance. Water samples were collected at nine locations along the floor of the main tunnel and from several ore shoots to evaluate the contributions of water and dissolved constituents from different portions of the mine. Values of pH ranged from 2.5 to 6.4 at different underground locations, concentrations of copper ranged from 0.020 to 44 mg/L (milligram per liter), zinc from 6.3 to 160 mg/L, and cadmium from 0.010 to 0.47 mg/L. Discharge from the ore shoots ranged from less than 1 gallon per minute to more than 30 gallons per minute and was always a small component of the total mine flow compared with the tunnel floor drainage. During March 1996, the main flow originated in the northernmost portion of the underground workings (inaccessible) and mixed with an unknown quantity of water upwelling from flooded lower workings. High-water marks observed on the tunnel walls indicate that past blockages impounded more than 100,000 gallons of water. Sudden release of a large volume of metal-rich water could have serious effects on fish and other aquatic resources in the Trinity River.Because of the hydrogeologic setting, mine plugging is not likely to offer an effective long-term solution to the problem of acid mine drainage at the Copper Bluff mine. The underground workings are close to a state highway and underlie a 500-foot-high bluff with highly fractured rocks that seep during the wet season. Total plugging likely would result in additional uncontrolled seepage and could potentially destabilize the highway. Partial plugging to restrict flow during periods of highest discharge may provide benefits in terms of reduced risk of catastrophic release without the additional risks associated with total plugging. Passive water treatment methods such as wetlands or anoxic limestone drains are unlikely to succeed at the Copper Bluff mine because of the lack of available space. A covered conveyance for the discharge directly from the mine portal to the Trinity River is a low-cost remedial alternative that would not reduce metal loadings to the Trinity River, but would reduce pathways of metal exposure to humans and wildlife. Lime neutralization or innovative, active water treatment methods such as bioreactors represent high-cost remedial alternatives that likely would be successful if sufficient resources were available for adequate design, testing, construction, long-term maintenance, and sludge disposal.

  15. Trinity Bay Study: Dye tracing experiments

    NASA Technical Reports Server (NTRS)

    Ward, G. H., Jr.

    1972-01-01

    An analysis of the heat balance and temperature distribution within Trinity Bay near Galveston, Texas is presented. The effects of tidal currents, wind driven circulations, and large volume inflows are examined. Emphasis is placed on the effects of turbulent diffusion and local shears in currents. The technique of dye tracing to determine the parameters characterizing dispersion is described. Aerial photographs and maps are provided to show the flow conditions existing at different times and seasons.

  16. Erosion and deterioration of Isles Dernieres Barrier Island arc, Louisiana: 1842-1988

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    McBride, R.A.; Westphal, K.; Penland, S.

    1989-09-01

    The Isles Dernieres barrier island arc is the most rapidly eroding coastline in the US. Located on the Mississippi River delta plain in Terrebonne Parish, Louisiana, the Isles Dernieres consists of four smaller islands in a 32-km long chain. From west to east, these islands are known as Raccoon Island, Whiskey Island, Trinity Island, and East Island. The barrier island arc is separated from the mainland by Caillou Bay, Boca Caillou, and Lake Pelto lagoonal systems. The abandonment and transgression of the Bayou Petit Caillou delta (part of the larger Lafourche delta complex) over the last 600 years, along withmore » sea level rise, repeated storm impacts, and rapid shoreface erosion, have led to the formation of the Isles Dernieres. Continued transgressive submergence combined with a diminishing sediment supply are driving the extreme coastal erosion found in the Isles Dernieres.« less

  17. Flood Frequency Analyses Using a Modified Stochastic Storm Transposition Method

    NASA Astrophysics Data System (ADS)

    Fang, N. Z.; Kiani, M.

    2015-12-01

    Research shows that areas with similar topography and climatic environment have comparable precipitation occurrences. Reproduction and realization of historical rainfall events provide foundations for frequency analysis and the advancement of meteorological studies. Stochastic Storm Transposition (SST) is a method for such a purpose and enables us to perform hydrologic frequency analyses by transposing observed historical storm events to the sites of interest. However, many previous studies in SST reveal drawbacks from simplified Probability Density Functions (PDFs) without considering restrictions for transposing rainfalls. The goal of this study is to stochastically examine the impacts of extreme events on all locations in a homogeneity zone. Since storms with the same probability of occurrence on homogenous areas do not have the identical hydrologic impacts, the authors utilize detailed precipitation parameters including the probability of occurrence of certain depth and the number of occurrence of extreme events, which are both incorporated into a joint probability function. The new approach can reduce the bias from uniformly transposing storms which erroneously increases the probability of occurrence of storms in areas with higher rainfall depths. This procedure is iterated to simulate storm events for one thousand years as the basis for updating frequency analysis curves such as IDF and FFA. The study area is the Upper Trinity River watershed including the Dallas-Fort Worth metroplex with a total area of 6,500 mi2. It is the first time that SST method is examined in such a wide scale with 20 years of radar rainfall data.

  18. Sources of trends in water-quality data for selected streams in Texas, 1975-89 water years

    USGS Publications Warehouse

    Schertz, T.L.; Wells, F.C.; Ohe, D.J.

    1994-01-01

    The probable source of trend patterns in nutrients and measures of oxygen in the Trinity River Basin was changes in the wastewater treatment facilities in the Dallas-Fort Worth metropolitan area. A pattern of increased concentrations of inorganic constituents in the upper Colorado River Basin resulted from emergency releases of water from the Natural Darn Lake, a salinity control structure. Trend patterns in inorganic constituents in the Rio Grande Basin were a result of increasing concentrations in the Pecos River and, to a lesser extent, the Rio Grande above the Amistad Reservoir, combined with the effects of reservoir regulation. A pattern of increasing concentrations of organic plus ammonia nitrogen and ammonia nitrogen was detected for the 1975-86 water years for stations with low concentrations (generally less than 5 milligrams per liter) of these nitrogen species. The trends were no longer evident when the period of trend analysis was extended to the 1989 water year. A positive bias in the data caused by the addition of mercuric chloride tablets to preserve nutrient samples during 1980-86 was the probable source of this trend pattern. A pattern of increasing concentrations in dissolved sulfate in the eastern part of the State was a result of a positive bias in the analytical results of a turbidimetric method of sulfate analysis. The source of a statewide pattern of increased pH in streams could not be identified.

  19. A conceptual hydrogeologic model for the hydrogeologic framework, geochemistry, and groundwater-flow system of the Edwards-Trinity and related aquifers in the Pecos County region, Texas

    USGS Publications Warehouse

    Thomas, Jonathan V.; Stanton, Gregory P.; Bumgarner, Johnathan R.; Pearson, Daniel K.; Teeple, Andrew; Houston, Natalie A.; Payne, Jason; Musgrove, MaryLynn

    2013-01-01

    Several previous studies have been done to compile or collect physical and chemical data, describe the hydrogeologic processes, and develop conceptual and numerical groundwater-flow models of the Edwards-Trinity aquifer in the Trans-Pecos region. Documented methods were used to compile and collect groundwater, surface-water, geochemical, geophysical, and geologic information that subsequently were used to develop this conceptual model.

  20. Barnett Shale or Strawn Group: Identifying the Source of Stray Gas through Noble Gases in the Trinity Aquifer, North-Central Texas

    NASA Astrophysics Data System (ADS)

    Wen, T.; Castro, M. C.; Nicot, J. P.; Hall, C. M.; Pinti, D. L.; Mickler, P. J.; Darvari, R.; Larson, T. E.

    2017-12-01

    The complete set of stable noble gases (He, Ne, Ar, Kr, Xe) is presented for Barnett Shale and Strawn Group production gas together with that of stray flowing gas present in the Trinity Aquifer, Texas. It places new constraints on the source of this stray gas and further shows that Barnett and Strawn gas have distinct crustal and atmospheric noble gas signatures, allowing clear identification of these two sources. Like Trinity Aquifer stray gas, Strawn gas is significantly more enriched in crustal 4He*, 21Ne*, and 40Ar* than Barnett gas. The similarity of Strawn and stray gas crustal noble gas signatures suggests that the Strawn is the source of stray gas in the Trinity Aquifer. Atmospheric 22Ne/36Ar ratios of stray gas mimic also that of Strawn, further reinforcing the notion that the source of stray gas in this aquifer is the Strawn. While noble gas signatures of Strawn and stray gas are consistent with a single-stage water degassing model, a two-stage oil modified groundwater exsolution fractionation model is required to explain the light atmospheric noble gas signature of Barnett Shale production gas. These distinct Strawn and Barnett noble gas signatures are likely the reflection of distinct evolution histories with Strawn gas being possibly older than that of Barnett Shale.

  1. A comparison of commercially available demineralized bone matrices with and without human mesenchymal stem cells in a rodent spinal fusion model.

    PubMed

    Hayashi, Tetsuo; Lord, Elizabeth L; Suzuki, Akinobu; Takahashi, Shinji; Scott, Trevor P; Phan, Kevin; Tian, Haijun; Daubs, Michael D; Shiba, Keiichiro; Wang, Jeffrey C

    2016-07-01

    OBJECTIVE The efficacy of some demineralized bone matrix (DBM) substances has been demonstrated in the spinal fusion of rats; however, no previous comparative study has reported the efficacy of DBM with human mesenchymal stem cells (hMSCs). There is an added cost to the products with stem cells, which should be justified by improved osteogenic potential. The purpose of this study is to prospectively compare the fusion rates of 3 different commercially available DBM substances, both with and without hMSCs. METHODS Posterolateral fusion was performed in 32 mature athymic nude rats. Three groups of 8 rats were implanted with 1 of 3 DBMs: Trinity Evolution (DBM with stem cells), Grafton (DBM without stem cells), or DBX (DBM without stem cells). A fourth group with no implanted material was used as a control group. Radiographs were obtained at 2, 4, and 8 weeks. The rats were euthanized at 8 weeks. Overall fusion was determined by manual palpation and micro-CT. RESULTS The fusion rates at 8 weeks on the radiographs for Trinity Evolution, Grafton, and DBX were 8 of 8 rats, 3 of 8 rats, and 5 of 8 rats, respectively. A significant difference was found between Trinity Evolution and Grafton (p = 0.01). The overall fusion rates as determined by micro-CT and manual palpation for Trinity Evolution, Grafton, and DBX were 4 of 8 rats, 3 of 8 rats, and 3 of 8 rats, respectively. The Trinity Evolution substance had the highest overall fusion rate, however no significant difference was found between groups. CONCLUSIONS The efficacies of these DBM substances are demonstrated; however, the advantage of DBM with hMSCs could not be found in terms of posterolateral fusion. When evaluating spinal fusion using DBM substances, CT analysis is necessary in order to not overestimate fusion.

  2. Hydrogen and oxygen isotope constraints on hydrothermal alteration of the Trinity peridotite, Klamath Mountains, California

    USGS Publications Warehouse

    Liakhovitch, V.; Quick, J.E.; Gregory, R.T.

    2005-01-01

    The Trinity peridotite represents a rare opportunity to examine a relatively fertile plagioclase peridotite that was exhumed and later subjected to intrusive events in a seafloor environment, followed by its emplacement and incorporation into a continent. Over 250 stable isotopic determinations on whole rocks and minerals elucidate the hydrothermal evolution of the Trinity complex. All three serpentine polymorphs are present in the Trinity peridotite; these separate on the basis of their ??D values: antigorite, -46 < ??D < -82??? and lizardite and chrysotile, -90 < ??D < -106 and -110 < ??D < -136???, respectively. Antigorite coexists with chlorite, talc, and tremolite in contact aureole assemblages associated with Silurian/Devonian gabbroic plutons. Lizardite and chrysotile alteration carries a meteoric signature, which suggests association with post-emplacement serpentinization, or overprinting of earlier low-temperature seafloor serpentinization. Regionally, contours of ??D values exhibit bull's-eye patterns associated with the gabbroic plutons, with ??D maxima coinciding with the blackwall alteration at the margins on the plutons. In contrast to the hydrogen isotope behavior, oxygen isotope values of the three polymorphs are indistinguishable, spanning the range 5.3 < ??18O< 7.5, and suggesting low integrated fluid fluxes and strongly 18O-shifted fluids. Inferred primary ?? 18O values for peridotite, gabbro, and late Mesozoic granodiorite indicate a progressive 18O enrichment with time for the source regions of the rocks. These isotopic signatures are consistent with the geology, petrochemistry, and geochronology of the Trinity massif, which indicate the following history: (1) lithospheric emplacement and cooling of the peridotite in an oceanic environment ??? 472 Ma; (2) intrusion of gabbroic plutons into cold peridotite in an arc environment between 435 and 404 Ma; and finally (3) intrusion of felsic plutons between 171 and 127 Ma, long after the peridotite was incorporated into the continental crust. Copyright ?? 2005 by V. H. Winston & Son, Inc. All rights reserved.

  3. Houston, Galveston Bay, Texas, USA

    NASA Image and Video Library

    1985-10-07

    51J-143-126 (5 Oct. 1985) --- The vertical stabilizer of the Earth-orbiting Space Shuttle Atlantis serves to partially frame this scene of Metropolitan Houston. Hold photo with vertical tail at top so that north will be at top. America's fourth largest city, with its radiating highway network, lies at the junction between the East Texas piney woods, containing lakes Conroe and Livingston (near top center and top right, respectively), and the coastal prairie, now largely farmland (left side of frame). The coast stretches from the left at Freeport and the mouth of the Brazos River, past Galveston and Texas City, and the circle of the High Island Salt Dome (clearly seen at lower right near the Bolivar Peninsula), to Port Arthur on the Neches River (far right). Patterns of muddy and clear water are particularly well-displayed in Galveston and Trinity Bays, as well as in the Gulf of Mexico. With a close look, the Harris County Domed Stadium (Astrodome) can be recognized on Houston's south side. The NASA Johnson Space Center (JSC) and the Clear Lake City area are easily delineated some 25 miles southeast of downtown Houston. The scene was recorded on film by one of the STS-51J crewmembers using a handheld Hasselblad camera and 70mm film.

  4. Land-Cover and Imperviousness Data for Regional Areas near Denver, Colorado; Dallas-Fort Worth, Texas; and Milwaukee-Green Bay, Wisconsin - 2001

    USGS Publications Warehouse

    Falcone, James A.; Pearson, Daniel K.

    2006-01-01

    This report describes the processing and results of land-cover and impervious surface derivation for parts of three metropolitan areas being studied as part of the U.S. Geological Survey's (USGS) National Water-Quality Assessment (NAWQA) Program Effects of Urbanization on Stream Ecosystems (EUSE). The data were derived primarily from Landsat-7 Enhanced Thematic Mapper Plus (ETM+) satellite imagery from the period 1999-2002, and are provided as 30-meter resolution raster datasets. Data were produced to a standard consistent with data being produced as part of the USGS National Land Cover Database 2001 (NLCD01) Program, and were derived in cooperation with, and assistance from, NLCD01 personnel. The data were intended as surrogates for NLCD01 data because of the EUSE Program's time-critical need for updated land-cover for parts of the United States that would not be available in time from the NLCD01 Program. Six datasets are described in this report: separate land-cover (15-class categorical data) and imperviousness (0-100 percent continuous data) raster datasets for parts of the general Denver, Colorado area (South Platte River Basin), Dallas-Fort Worth, Texas area (Trinity River Basin), and Milwaukee-Green Bay, Wisconsin area (Western Lake Michigan Drainages).

  5. Bedload transport from spectral analysis of seismic noise near rivers

    NASA Astrophysics Data System (ADS)

    Hsu, L.; Finnegan, N. J.; Brodsky, E. E.

    2010-12-01

    Channel change in rivers is driven by bedload sediment transport. However, the nonlinear nature of sediment transport combined with the difficulty of making direct observations in rivers at flood hinder prediction of the timing and magnitude of bedload movement. Recent studies have shown that spectral analysis of seismic noise from seismometers near rivers illustrate a correlation between the relative amplitude of high frequency (>1 Hz) seismic noise and conditions for bedload transport, presumably from the energy transferred from clast collisions with the channel. However, a previous study in the Himalayas did not contain extensive bedload transport or discharge measurements, and the correspondence of seismic noise with proxy variables such as regional hydrologic and meteorologic data was not exact. A more complete understanding of the relationship between bedload transport and seismic noise would be valuable for extending the spatial and temporal extent of bedload data. To explore the direct relationship between bedload transport and seismic noise, we examine data from several seismic stations near the Trinity River in California, where the fluvial morphodynamics and bedload rating curves have been studied extensively. We compare the relative amplitude of the ambient seismic noise with records of water discharge and sediment transport. We also examine the noise at hourly, daily, and seasonal timescales to determine other possible sources of noise. We report the influence of variables such as local river slope, adjacent geology, anthropogenic noise, and distance from the river. The results illustrate the feasibility of using existing seismic arrays to sense radiated energy from processes of bedload transport. In addition, the results can be used to design future seismic array campaigns to optimize information about bedload transport. This technique provides great spatial and temporal coverage, and can be performed where direct bedload measurements are difficult or impossible. In addition to supplying information about sediment transport, the measure of energy transfer to the bed is useful for other applications such as potential for channel bed scour and erosion. Preliminary calculations indicate that the radiated energy sensed by a seismometer 1 km from a large mountain stream is of order 10^2 joules/s. This is similar in magnitude to the gravitational potential energy supply per time of the river, and therefore suggests that in these steep landscapes, a significant fraction of the energy from rivers is transmitted to the bed and can be documented by seismic noise.

  6. Evaluation of a Novel Laser-assisted Coronary Anastomotic Connector - the Trinity Clip - in a Porcine Off-pump Bypass Model

    PubMed Central

    Stecher, David; Bronkers, Glenn; Noest, Jappe O.T.; Tulleken, Cornelis A.F.; Hoefer, Imo E.; van Herwerden, Lex A.; Pasterkamp, Gerard; Buijsrogge, Marc P.

    2014-01-01

    To simplify and facilitate beating heart (i.e., off-pump), minimally invasive coronary artery bypass surgery, a new coronary anastomotic connector, the Trinity Clip, is developed based on the excimer laser-assisted nonocclusive anastomosis technique. The Trinity Clip connector enables simplified, sutureless, and nonocclusive connection of the graft to the coronary artery, and an excimer laser catheter laser-punches the opening of the anastomosis. Consequently, owing to the complete nonocclusive anastomosis construction, coronary conditioning (i.e., occluding or shunting) is not necessary, in contrast to the conventional anastomotic technique, hence simplifying the off-pump bypass procedure. Prior to clinical application in coronary artery bypass grafting, the safety and quality of this novel connector will be evaluated in a long-term experimental porcine off-pump coronary artery bypass (OPCAB) study. In this paper, we describe how to evaluate the coronary anastomosis in the porcine OPCAB model using various techniques to assess its quality. Representative results are summarized and visually demonstrated. PMID:25490000

  7. Potential landscape and flux field theory for turbulence and nonequilibrium fluid systems

    NASA Astrophysics Data System (ADS)

    Wu, Wei; Zhang, Feng; Wang, Jin

    2018-02-01

    Turbulence is a paradigm for far-from-equilibrium systems without time reversal symmetry. To capture the nonequilibrium irreversible nature of turbulence and investigate its implications, we develop a potential landscape and flux field theory for turbulent flow and more general nonequilibrium fluid systems governed by stochastic Navier-Stokes equations. We find that equilibrium fluid systems with time reversibility are characterized by a detailed balance constraint that quantifies the detailed balance condition. In nonequilibrium fluid systems with nonequilibrium steady states, detailed balance breaking leads directly to a pair of interconnected consequences, namely, the non-Gaussian potential landscape and the irreversible probability flux, forming a 'nonequilibrium trinity'. The nonequilibrium trinity characterizes the nonequilibrium irreversible essence of fluid systems with intrinsic time irreversibility and is manifested in various aspects of these systems. The nonequilibrium stochastic dynamics of fluid systems including turbulence with detailed balance breaking is shown to be driven by both the non-Gaussian potential landscape gradient and the irreversible probability flux, together with the reversible convective force and the stochastic stirring force. We reveal an underlying connection of the energy flux essential for turbulence energy cascade to the irreversible probability flux and the non-Gaussian potential landscape generated by detailed balance breaking. Using the energy flux as a center of connection, we demonstrate that the four-fifths law in fully developed turbulence is a consequence and reflection of the nonequilibrium trinity. We also show how the nonequilibrium trinity can affect the scaling laws in turbulence.

  8. 78 FR 79434 - Sabine River Authority of Texas and Sabine River Authority, State of Louisiana; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-30

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2305-036] Sabine River Authority of Texas and Sabine River Authority, State of Louisiana; Notice of Availability of the Final Environmental Impact Statement for the Toledo Bend Hydroelectric Project In accordance with the National Environmental Policy Act of 1969 and the...

  9. Variable glacier response to atmospheric warming, northern Antarctic Peninsula, 1988-2009

    NASA Astrophysics Data System (ADS)

    Davies, B. J.; Carrivick, J. L.; Glasser, N. F.; Hambrey, M. J.; Smellie, J. L.

    2012-09-01

    The northern Antarctic Peninsula has recently exhibited ice-shelf disintegration, glacier recession and acceleration. However, the dynamic response of land-terminating, ice-shelf tributary and tidewater glaciers has not yet been quantified or assessed for variability, and there are sparse data for glacier classification, morphology, area, length or altitude. This paper firstly classifies the area, length, altitude, slope, aspect, geomorphology, type and hypsometry of 194 glaciers on Trinity Peninsula, Vega Island and James Ross Island in 2009 AD. Secondly, this paper documents glacier change 1988-2009. In 2009, the glacierised area was 8140±262 km2. From 1988-2001, 90% of glaciers receded, and from 2001-2009, 79% receded. This equates to an area change of -4.4% for Trinity Peninsula eastern coast glaciers, -0.6% for western coast glaciers, and -35.0% for ice-shelf tributary glaciers from 1988-2001. Tidewater glaciers on the drier, cooler eastern Trinity Peninsula experienced fastest shrinkage from 1988-2001, with limited frontal change after 2001. Glaciers on the western Trinity Peninsula shrank less than those on the east. Land-terminating glaciers on James Ross Island shrank fastest in the period 1988-2001. This east-west difference is largely a result of orographic temperature and precipitation gradients across the Antarctic Peninsula, with warming temperatures affecting the precipitation-starved glaciers on the eastern coast more than on the western coast. Reduced shrinkage on the western Peninsula may be a result of higher snowfall, perhaps in conjunction with the fact that these glaciers are mostly grounded. Rates of area loss on the eastern side of Trinity Peninsula are slowing, which we attribute to the floating ice tongues receding into the fjords and reaching a new dynamic equilibrium. The rapid shrinkage of tidewater glaciers on James Ross Island is likely to continue because of their low elevations and flat profiles. In contrast, the higher and steeper tidewater glaciers on the eastern Antarctic Peninsula will attain more stable frontal positions after low-lying ablation areas are removed, reaching equilibrium more quickly.

  10. A multiphased approach to groundwater investigations for the Edwards-Trinity and related aquifers in the Pecos County region, Texas

    USGS Publications Warehouse

    Thomas, Jonathan V.

    2014-01-01

    The Edwards-Trinity aquifer is a vital groundwater resource for agricultural, industrial, and public supply uses in the Pecos County region of western Texas. Resource managers would like to understand the future availability of water in the Edwards-Trinity aquifer in the Pecos County region and the effects of the possible increase or temporal redistribution of groundwater withdrawals. To provide resource managers with that information, the U.S. Geological Survey (USGS), in cooperation with the Middle Pecos Groundwater Conservation District, Pecos County, City of Fort Stockton, Brewster County, and Pecos County Water Control and Improvement District No. 1, completed a three-phase study of the Edwards-Trinity and related aquifers in parts of Brewster, Jeff Davis, Pecos, and Reeves Counties. The first phase was to collect groundwater, surface-water, geochemical, geophysical, and geologic data in the study area and develop a geodatabase of historical and collected data. Data compiled in the first phase of the study were used to develop the conceptual model in the second phase of the study. The third phase of the study involved the development and calibration of a numerical groundwater-flow model of the Edwards-Trinity aquifer to simulate groundwater conditions based on various groundwater-withdrawal scenarios. Analysis of well, geophysical, geochemical, and hydrologic data contributed to the development of the conceptual model in phase 1. Lithologic information obtained from well reports and geophysical data was used to describe the hydrostratigraphy and structural features of the groundwater-flow system, and aquifer-test data were used to estimate aquifer hydraulic properties. Geochemical data were used to evaluate groundwater-flow paths, water-rock interaction, aquifer interaction, and the mixing of water from different sources in phase 2. Groundwater-level data also were used to evaluate aquifer interaction, as well as to develop a potentiometric-surface map, delineate regional groundwater divides, and describe regional groundwater-flow paths. During phase 3, the data collected and compiled along with the conceptual information in the study area were incorporated into a numerical groundwater-flow model to evaluate the sustainability of recent (2008) and projected water-use demands on groundwater resources in the study area.

  11. Effects of Thalassinoides ichnofabrics on the petrophysical properties of the Lower Cretaceous Lower Glen Rose Limestone, Middle Trinity Aquifer, Northern Bexar County, Texas

    NASA Astrophysics Data System (ADS)

    Golab, James A.; Smith, Jon J.; Clark, Allan K.; Blome, Charles D.

    2017-04-01

    The combined Edwards and Trinity aquifer system is the primary source of freshwater for the rapidly growing San Antonio and Austin metropolitan areas. The karstic Lower Cretaceous (Aptian-Albian) Lower Glen Rose Limestone (GRL) contains the middle Trinity aquifer and has been subdivided into six hydrostratigraphic units (HSUs) with distinct hydrologic characteristics. These HSUs were first identified in the subsurface via core examination at the Camp Stanley Storage Activity (CSSA) in northern Bexar County, Texas and were then correlated to associated gamma-ray and resistivity logs. The Trinity aquifer system is a telogenetic karst and fluid flow is directed primarily through solution-enhanced faults, fractures, and pervasive Thalassinoides networks because matrix porosity of both transmissive and confining HSUs is very low. Meteoric water infiltrates the Trinity aquifer through vertically-oriented faults and likely moves laterally through biogenic pores. Two 7.62 cm diameter GRL cores and well logs from monitoring wells CS-MW9-CC and CS-MW5-LGR recovered from the CSSA were used to characterize the effect such large-scale Thalassinoides networks have on the petrophysical properties (resistivity and natural gamma-ray) of four HSUs (Honey Creek, Rust, Doeppenschmidt, and Twin Sisters HSUs). Resistivity logs show that resistance values > 300 Ω-m correlate with well-developed biogenic porosity and values of 650 Ω-m are associated with solution enhancement of the Thalassinoides networks. These high resistivity zones are cyclical and are identified in muddy confining units, even when no changes in lithology or karstic development are identified. Pervasive Thalassinoides networks act as starting points for wide spread dissolution and lead to advanced karst development in transmissive HSUs. Natural gamma-ray logs do not reflect hydrologic characteristics directly, but are inversely correlated to resistivity logs and display m-scale cyclicity. Resistivity logs suggest that Thalassinoides networks are interconnected throughout strata within the GRL and when coupled with natural gamma-logs, the lateral distribution of these networks within HSUs can be correlated. Identifying such fluid pathways is of particular importance for wells not located in proximity to major faults and karstic features.

  12. ABC of ladder operators for rationally extended quantum harmonic oscillator systems

    NASA Astrophysics Data System (ADS)

    Cariñena, José F.; Plyushchay, Mikhail S.

    2017-07-01

    The problem of construction of ladder operators for rationally extended quantum harmonic oscillator (REQHO) systems of a general form is investigated in the light of existence of different schemes of the Darboux-Crum-Krein-Adler transformations by which such systems can be generated from the quantum harmonic oscillator. Any REQHO system is characterized by the number of separated states in its spectrum, the number of ‘valence bands’ in which the separated states are organized, and by the total number of the missing energy levels and their position. All these peculiarities of a REQHO system are shown to be detected and reflected by a trinity (A^+/- , B^+/- , C^+/-) of the basic (primary) lowering and raising ladder operators related between themselves by certain algebraic identities with coefficients polynomially-dependent on the Hamiltonian. We show that all the secondary, higher-order ladder operators are obtainable by a composition of the basic ladder operators of the trinity which form the set of the spectrum-generating operators. Each trinity, in turn, can be constructed from the intertwining operators of the two complementary minimal schemes of the Darboux-Crum-Krein-Adler transformations.

  13. Planning report for the Edwards-Trinity Regional Aquifer-System analysis in central Texas, southeast Oklahoma, and southwest Arkansas

    USGS Publications Warehouse

    Bush, Peter W.

    1986-01-01

    The Edwards-Trinity regional aquifer-system analysis project, begun in October 1985 and scheduled to be completed by October 1991, is one of a series of similar projects being conducted nationwide. The project is intended to define the hydrogeologic framework, and to describe the geochemistry and groundwater flow of the aquifer system in order to provide a better understanding of the system's long-term water-yielding potential. A multidisciplinary approach will be used in which computer-based digital simulation of flow in the system will be the principal method of hydrogeologic investigation.

  14. Characterization of the world's first nuclear explosion, the Trinity test, as a source of public radiation exposure.

    PubMed

    Widner, Thomas E; Flack, Susan M

    2010-03-01

    The world's first atomic bomb was tested in New Mexico on 16 July 1945. From 1999 through 2008, scientists working for the Centers for Disease Control and Prevention gathered information relevant to past releases from Los Alamos activities, including the Trinity test. Detonation on a 30.5 m tower enhanced radioactive fallout, and terrain and wind patterns caused "hot spots" of deposition. Several ranchers reported that fallout resembling flour was visible for 4 to 5 d after the blast, and residents living as close as 19 km from ground zero collected rain water from metal roofs for drinking. Pressures to maintain secrecy and avoid legal claims led to decisions that would not likely have been made in later tests. Residents were not warned before the test or informed afterward about potential protective actions, and no evacuations were conducted. Occupied homes were overlooked on the day of the blast. Exposure rates in residential areas were recorded as high as 1.4 microC kg s (20 R h) using instruments that were crude, ill suited to field use, and incapable of effectively measuring alpha contamination from about 4.8 kg of unfissioned plutonium that was dispersed. Vehicle shielding and contamination were recognized but not corrected for. To date, the post-shot field team measurements have not been rigorously evaluated, cross-checked, adjusted, or subjected to uncertainty analysis. Evaluations of Trinity fallout published to date have not addressed internal doses to members of the public following intakes of contaminated air, water, or foods. The closing of these data gaps appears feasible with the information that has been assembled and would support placement of the Trinity event in perspective as a source of public radiation exposure and more defensible evaluation of the potential for human health effects.

  15. 77 FR 30518 - Grand River Dam Authority; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-23

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 1494-403] Grand River Dam.... Project No.: 1494-403. c. Date Filed: April 11, 2012. d. Applicant: Grand River Dam Authority. e. Name of.... Tamara E. Jahnke, Assistant General Counsel, Grand River Dam Authority, P.O. Box 409, Vinita, Oklahoma...

  16. 77 FR 58820 - Grand River Dam Authority; Notice of Application Accepted for Filing, Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [ Project No. 1494-410] Grand River Dam.... Project No: 1494-410. c. Date Filed: August 6, 2012. d. Applicant: Grand River Dam Authority. e. Name of... River Dam Authority, P.O. Box 409, Vinita, Oklahoma 74301, (918) 256-5545. i. FERC Contact: Lorance...

  17. 76 FR 9341 - Grand River Dam Authority; Notice of Application Accepted for Filing, Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-17

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 1494-391] Grand River Dam.... Project No.: 1494-391. c. Date Filed: January 7, 2011. d. Applicant: Grand River Dam Authority (GRDA). e... Contact: Tamara E. Jahnke, Assistant General Counsel, Grand River Dam Authority, P.O. Box 409, Vinita, OK...

  18. 75 FR 16090 - Grand River Dam Authority; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 1494-384] Grand River Dam.... Applicant: Grand River Dam Authority. e. Name of Project: Pensacola Project. f. Location: The proposed non... Council, Grand Dam River Authority, P.O. Box 409, Vinita, Oklahoma 74301, (918) 256-5545. i. FERC Contact...

  19. 76 FR 40903 - Grand River Dam Authority; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-12

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2524-019] Grand River Dam.... Date Filed: January 21, 2011. d. Applicant: Grand River Dam Authority. e. Name of Project: Salina... Zumwalt-Smith, General Counsel, Grand River Dam Authority, P.O. Box 409, Vinita, OK 73401-0409. Tel: (918...

  20. Baseline assessment of fish communities, benthic macroinvertebrate communities, and stream habitat and land use, Big Thicket National Preserve, Texas, 1999-2001

    USGS Publications Warehouse

    Moring, J. Bruce

    2003-01-01

    The Big Thicket National Preserve comprises 39,300 hectares in the form of nine preserve units connected by four stream corridor units (with two more corridor units proposed) distributed over the lower Neches and Trinity River Basins of southeastern Texas. Fish and benthic macroinvertebrate data were collected at 15 stream sites (reaches) in the preserve during 1999–2001 for a baseline assessment and a comparison of communities among stream reaches. The fish communities in the preserve were dominated by minnows (family Cyprinidae) and sunfishes (family Centrarchidae). Reaches with smaller channel sizes generally had higher fish species richness than the larger reaches in the Neches River and Pine Island Bayou units of the preserve. Fish communities in geographically adjacent reaches were most similar in overall community structure. The blue sucker, listed by the State as a threatened species, was collected in only one reach—a Neches River reach a few miles downstream from the Steinhagen Lake Dam. Riffle beetles (family Elmidae) and midges (family Chironomidae) dominated the aquatic insect communities at the 14 reaches sampled for aquatic insects in the preserve. The Ephemeroptera, Plecoptera and Trichoptera (EPT) Index, an index sensitive to water-quality degradation, was smallest at the Little Pine Island Bayou near Beaumont reach that is in a State 303(d)-listed stream segment on Little Pine Island Bayou. Trophic structure of the aquatic insect communities is consistent with the river continuum concept with shredder and scraper insect taxa more abundant in reaches with smaller stream channels and filter feeders more abundant in reaches with larger channels. Aquatic insect community metrics were not significantly correlated to any of the stream-habitat or land-use explanatory variables. The percentage of 1990s urban land use in the drainage areas upstream from 12 bioassessment reaches were negatively correlated to the reach structure index, which indicates less stable habitat for aquatic biota.

  1. Towards an Understanding of the Interactions between Freshwater Inflows and Phytoplankton Communities in a Subtropical Estuary in the Gulf of Mexico

    PubMed Central

    Dorado, Samuel; Booe, Tyra; Steichen, Jamie; McInnes, Allison S.; Windham, Rachel; Shepard, Alicia; Lucchese, Allyson E. B.; Preischel, Hannah; Pinckney, James L.; Davis, Stephen E.; Roelke, Daniel L.; Quigg, Antonietta

    2015-01-01

    Subtropical estuaries worldwide face increased pressure on their ecosystem health and services due to increasing human population growth and associated land use/land cover changes, expansion of ports, and climate change. We investigated freshwater inflows (river discharge) and the physico-chemical characteristics of Galveston Bay (Texas, USA) as mechanisms driving variability in phytoplankton biomass and community composition between February 2008 and December 2009. Results of multivariate analyses (hierarchical cluster analysis, PERMANOVA, Mantel test, and nMDS ordination coupled to environmental vector fitting) revealed that temporal and spatial differences in phytoplankton community structure correlate to differences in hydrographic and water quality parameters. Spatially, phytoplankton biomass and community composition responded to nutrient loading from the San Jacinto River in the northwest region of the bay (consistent with nutrient limitation) while hydraulic displacement (and perhaps other processes) resulted in overall lower biomass in the Trinity River delta (northeast region). The influence of inflows on phytoplankton diminished along a north to south gradient in the bay. Temporally, temperature and variables associated with freshwater inflow (discharge volume, salinity, inorganic nitrogen and phosphorus concentrations) were major influences on phytoplankton dynamics. Dissolved inorganic nitrogen: phosphorus (DIN:DIP) ratios suggest that phytoplankton communities will be predominately nitrogen limited. Diatoms dominated during periods of moderate to high freshwater inflows in winter/spring and were more abundant in the upper bay while cyanobacteria dominated during summer/fall when inflow was low. Given the differential influences of freshwater inflow on the phytoplankton communities of Galveston Bay, alterations upstream (magnitude, timing, frequency) will likely have a profound effect on downstream ecological processes and corresponding ecosystem services. PMID:26133991

  2. 75 FR 4363 - Grand River Dam Authority; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2183-072] Grand River Dam... No.: 2183-072. c. Date Filed: August 4, 2009. d. Applicant: Grand River Dam Authority. e. Name of... 16 U.S.C. 791(a)-825(r). h. Applicant Contact: D. Casey Davis, Grand River Dam Authority, P.O. Box...

  3. The Math You Need at Trinity College, Hartford CT

    NASA Astrophysics Data System (ADS)

    Geiss, C. E.

    2011-12-01

    Trinity College is a small, private, highly selective liberal arts college with approximately 2400 students. Most students have relatively well developed quantitative skills, but many are nevertheless insecure about their abilities and reluctant to engage in courses that stress quantitative content. I have used The Math You Need (TMYN) modules in an introductory geology course which serves both majors and non-majors in Trinity's Environmental Science Program. This dual audience makes the introduction of quantitative exercises labor intensive and challenging for both students and instructor. TMYN was introduced to a) offer the students an independent support structure outside of class and to b) free up some class and office hour time that would have been spent on mathematical background information. THMY was added to the course as a set of homework assignments preceding related laboratory exercises and homework assignments. During the semester most feedback regarding TMYN was negative. Some outspoken students either saw it as additional busywork or generally disliked "being taught by a computer". A review of pre- and post-test data, however, revealed that the exercises improved students' quantitative skills. Furthermore, in the assignments most students ranked the exercises as useful and rewarding. These positive results were relatively independent of student skill levels.

  4. A new glacier inventory for 2009 reveals spatial and temporal variability in glacier response to atmospheric warming in the Northern Antarctic Peninsula, 1988-2009

    NASA Astrophysics Data System (ADS)

    Davies, B. J.; Carrivick, J. L.; Glasser, N. F.; Hambrey, M. J.; Smellie, J. L.

    2011-12-01

    The Northern Antarctic Peninsula has recently exhibited ice-shelf disintegration, glacier recession and acceleration. However, the dynamic response of land-terminating, ice-shelf tributary and tidewater glaciers has not yet been quantified or assessed for variability, and there are sparse published data for glacier classification, morphology, area, length or altitude. This paper firstly uses ASTER images from 2009 and a SPIRIT DEM from 2006 to classify the area, length, altitude, slope, aspect, geomorphology, type and hypsometry of 194 glaciers on Trinity Peninsula, Vega Island and James Ross Island. Secondly, this paper uses LANDSAT-4 and ASTER images from 1988 and 2001 and data from the Antarctic Digital Database (ADD) from 1997 to document glacier change 1988-2009. From 1988-2001, 90 % of glaciers receded, and from 2001-2009, 79 % receded. Glaciers on the western side of Trinity Peninsula retreated relatively little. On the eastern side of Trinity Peninsula, the rate of recession of ice-shelf tributary glaciers has slowed from 12.9 km2 a-1 (1988-2001) to 2.4 km2 a-1 (2001-2009). Tidewater glaciers on the drier, cooler Eastern Trinity Peninsula experienced fastest recession from 1988-2001, with limited frontal retreat after 2001. Land-terminating glaciers on James Ross Island also retreated fastest in the period 1988-2001. Large tidewater glaciers on James Ross Island are now declining in areal extent at rates of up to 0.04 km2 a-1. This east-west difference is largely a result of orographic temperature and precipitation gradients across the Antarctic Peninsula. Strong variability in tidewater glacier recession rates may result from the influence of glacier length, altitude, slope and hypsometry on glacier mass balance. High snowfall means that the glaciers on the Western Peninsula are not currently rapidly receding. Recession rates on the eastern side of Trinity Peninsula are slowing as the floating ice tongues retreat into the fjords and the glaciers reach a new dynamic equilibrium. The rapid glacier recession of tidewater glaciers on James Ross Island is likely to continue because of their low elevations and flat profiles. In contrast, the higher and steeper tidewater glaciers on the Eastern Antarctic Peninsula will attain more stable frontal positions after low-lying ablation areas are removed.

  5. 76 FR 63914 - Sabine River Authority of Texas and Sabine River Authority, State of Louisiana; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-14

    ...-foot-high powerhouse located in the right abutment, containing two vertical Kaplan turbines with an... adjacent to the powerhouse. The Sabine River Authorities propose to construct a 1.3-MW minimum flow turbine...

  6. Model structure of the stream salmonid simulator (S3)—A dynamic model for simulating growth, movement, and survival of juvenile salmonids

    USGS Publications Warehouse

    Perry, Russell W.; Plumb, John M.; Jones, Edward C.; Som, Nicholas A.; Hetrick, Nicholas J.; Hardy, Thomas B.

    2018-04-06

    Fisheries and water managers often use population models to aid in understanding the effect of alternative water management or restoration actions on anadromous fish populations. We developed the Stream Salmonid Simulator (S3) to help resource managers evaluate the effect of management alternatives on juvenile salmonid populations. S3 is a deterministic stage-structured population model that tracks daily growth, movement, and survival of juvenile salmon. A key theme of the model is that river flow affects habitat availability and capacity, which in turn drives density dependent population dynamics. To explicitly link population dynamics to habitat quality and quantity, the river environment is constructed as a one-dimensional series of linked habitat units, each of which has an associated daily time series of discharge, water temperature, and usable habitat area or carrying capacity. The physical characteristics of each habitat unit and the number of fish occupying each unit, in turn, drive survival and growth within each habitat unit and movement of fish among habitat units.The purpose of this report is to outline the underlying general structure of the S3 model that is common among different applications of the model. We have developed applications of the S3 model for juvenile fall Chinook salmon (Oncorhynchus tshawytscha) in the lower Klamath River. Thus, this report is a companion to current application of the S3 model to the Trinity River (in review). The general S3 model structure provides a biological and physical framework for the salmonid freshwater life cycle. This framework captures important demographics of juvenile salmonids aimed at translating management alternatives into simulated population responses. Although the S3 model is built on this common framework, the model has been constructed to allow much flexibility in application of the model to specific river systems. The ability for practitioners to include system-specific information for the physical stream structure, survival, growth, and movement processes ensures that simulations provide results that are relevant to the questions asked about the population under study.

  7. Evaluate Hydrologic Response on Spatiotemporal Characteristics of Rainfall Using High Resolution Radar Rainfall Data and WRF-Hydro Model

    NASA Astrophysics Data System (ADS)

    Gao, S.; Fang, N. Z.

    2017-12-01

    A previously developed Dynamic Moving Storm (DMS) generator is a multivariate rainfall model simulating the complex nature of precipitation field: spatial variability, temporal variability, and storm movement. Previous effort by the authors has investigated the sensitivity of DMS parameters on corresponding hydrologic responses by using synthetic storms. In this study, the DMS generator has been upgraded to generate more realistic precipitation field. The dependence of hydrologic responses on rainfall features was investigated by dissecting the precipitation field into rain cells and modifying their spatio-temporal specification individually. To retrieve DMS parameters from radar rainfall data, rain cell segmentation and tracking algorithms were respectively developed and applied on high resolution radar rainfall data (1) to spatially determine the rain cells within individual radar image and (2) to temporally analyze their dynamic behavior. Statistics of DMS parameters were established by processing a long record of rainfall data (10 years) to keep the modification on real storms within the limit of regional climatology. Empirical distributions of the DMS parameters were calculated to reveal any preferential pattern and seasonality. Subsequently, the WRF-Hydro model forced by the remodeled and modified precipitation was used for hydrologic simulation. The study area was the Upper Trinity River Basin (UTRB) watershed, Texas; and two kinds of high resolution radar data i.e. the Next-Generation Radar (NEXRAD) level III Digital Hybrid Reflectivity (DHR) product and Multi-Radar Multi-Sensor (MRMS) precipitation rate product, were utilized to establish parameter statistics and to recreate/remodel historical events respectively. The results demonstrated that rainfall duration is a significant linkage between DMS parameters and their hydrologic impacts—any combination of spatiotemporal characteristics that keep rain cells longer over the catchment will produce higher peak discharge.

  8. The Perils of Paul: Near Disasters in Airborne Radiochemical Sampling

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Meade, Roger Allen

    Beginning with the Trinity test in July 1945, Laboratory radiochemists have collected debris from nuclear tests by various means. At Trinity, two United States Army Sherman tanks were used. Beginning with Operation Crossroads and continuing throughout atmospheric testing, aircraft were used to fly in and around mushroom clouds to collect debris. Paul Guthals, the LASL project leader for sampling operations, flew on many of the B-57 sampling missions. Two such missions, one flown over the Nevada Test and one in the skies near Johnston Atoll, again proved the dangers involved in collecting airborne test debris. The events of these twomore » missions are briefly recounted.« less

  9. 76 FR 65744 - Draft Environmental Assessment and Draft Habitat Conservation Plan for Lower Colorado River...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-24

    ...] Draft Environmental Assessment and Draft Habitat Conservation Plan for Lower Colorado River Authority... of availability of documents and announcement of public hearings. SUMMARY: The Lower Colorado River... issuance of an incidental take permit (ITP) to Lower Colorado River Authority Transmission Services...

  10. 75 FR 61458 - Grand River Dam Authority; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-05

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 1494-386] Grand River Dam Authority; Notice of Application for Amendment of License and Soliciting Comments, Motions To Intervene, and... August 16, 2010. d. Applicant: Grand River Dam Authority. e. Name of Project: Pensacola Hydroelectric...

  11. In search of the Abrams post office, Trinity County

    USGS Publications Warehouse

    Lanphere, Marvin A.; Irwin, William P.

    1987-01-01

    An understanding of earth history depends in part on stratigraphy, a division of geology in which the distinctive features of natural units or formations of layered rocks are studied and described and names are assigned to them. The procedures for describing and naming rock units in a uniform way are incorporated in documents known as stratigraphic codes. The North American Stratigraphic Code (1983) is currently used by most geologists in the United States when formation names are selected. Rock unit names consist of a geographic name, generally taken from a natural feature near the locality where the unit was first described, followed by a descriptive feature, usually the dominant rock type in the unit. Although the procedure for naming a rock unit seems straightforward, stratigraphic nomenclature can lead to confusion when the principles outlined in the stratigraphic code are ignored or incorrectly applied. This paper traces the naming of the Abrams Mica Schist, one of the major units of the northern California Klamath Mountains. It describes how uncertainty about the location of the geographic feature after which the unit was named has led to conflicting terminology. The search revealed some interesting history of the early days of mining in the Coffee Creek region of the Trinity Alps in Trinity County. 

  12. Integrated modeling of protein-coding genes in the Manduca sexta genome using RNA-Seq data from the biochemical model insect

    PubMed Central

    Cao, Xiaolong; Jiang, Haobo

    2015-01-01

    The genome sequence of Manduca sexta was recently determined using 454 technology. Cufflinks and MAKER2 were used to establish gene models in the genome assembly based on the RNA-Seq data and other species' sequences. Aided by the extensive RNA-Seq data from 50 tissue samples at various life stages, annotators over the world (including the present authors) have manually confirmed and improved a small percentage of the models after spending months of effort. While such collaborative efforts are highly commendable, many of the predicted genes still have problems which may hamper future research on this insect species. As a biochemical model representing lepidopteran pests, M. sexta has been used extensively to study insect physiological processes for over five decades. In this work, we assembled Manduca datasets Cufflinks 3.0, Trinity 4.0, and Oases 4.0 to assist the manual annotation efforts and development of Official Gene Set (OGS) 2.0. To further improve annotation quality, we developed methods to evaluate gene models in the MAKER2, Cufflinks, Oases and Trinity assemblies and selected the best ones to constitute MCOT 1.0 after thorough crosschecking. MCOT 1.0 has 18,089 genes encoding 31,666 proteins: 32.8% match OGS 2.0 models perfectly or near perfectly, 11,747 differ considerably, and 29.5% are absent in OGS 2.0. Future automation of this process is anticipated to greatly reduce human efforts in generating comprehensive, reliable models of structural genes in other genome projects where extensive RNA-Seq data are available. PMID:25612938

  13. Introduction to the Delaware River Port Authority's Smart Bridges initiative

    NASA Astrophysics Data System (ADS)

    Box, Robert A.; McCullough, Patrick J.; Bistline, Robert S.

    2000-06-01

    The Delaware River Port Authority, whose mission is to manage, plan and construct transportation facilities and provide transportation services to maximize the safe and efficient movement of people and freight within the Delaware River Valley, located in southwestern Pennsylvania and southern New Jersey, is a self-financing, bi-state Authority, formed by a compact between the Commonwealth of Pennsylvania and the State of New Jersey and approved by the Congress of the United States. The Delaware River Port Authority is firmly committed to the strategic and integrated use of advanced transportation technology to improve traffic flow, operational efficiency and safety on DRPA's four bridges. To this end, the Delaware River Port Authority has initiated a program, appropriately named 'Smart Bridges.' The Delaware River Port Authority has recognized that this type of program is essential to the advancement of the DRPA's mission as an efficient, customer- friendly transportation and regional development agency. Under the Smart Bridges program the Delaware River Port Authority is introducing new technology into its aging infrastructure and transportation systems to ensure that the facilities continue to serve the region into the 21st century and beyond. Initiatives introduced under this program include EZ Pass, video surveillance systems, computerized traffic control systems and partnering with local universities to investigate the application of various innovative technologies to assist in the maintenance of the bridge facilities.

  14. Osprey distribution, abundance, and status in western North America: I. The northern California population

    USGS Publications Warehouse

    Henny, Charles J.; Dunaway, David J.; Mallette, Robert D.; Koplin, James R.

    1978-01-01

    An estimated 355± 40 pairs (95 percent C.I.) of Ospreys (Pandion haliaetus carolinensis) nested in the northern California survey area in 1975. Eighty-one pairs were estimated along the extreme northern coast in Del Norte and Humboldt Counties. One hundred and forty-four pairs were estimated along California's northern coast in Mendociuo, Sonoma, and Marin Counties. The northern interior region, primarily in Siskiyou, Trinity, Shasta, Lassen, and Plumas Counties, contained an estimated 130 pairs. Forty-nine percent of the interior Osprey population is associated with reservoirs that were not present in 1900. We believe more Ospreys are present in the interior now than 75 years ago because of the increase in suitable habitat; nevertheless, populations at Shasta Lake and Clair Engle Lake are now exhibiting below-normal production rates and local declines. The long-term status of the coastal population, nesting along rivers, streams, and bays, is not clear. Recent production rates from two segments of the coastal population appear to be normal, but production at Usal Creek is below normal.

  15. N-mix for fish: estimating riverine salmonid habitat selection via N-mixture models

    USGS Publications Warehouse

    Som, Nicholas A.; Perry, Russell W.; Jones, Edward C.; De Juilio, Kyle; Petros, Paul; Pinnix, William D.; Rupert, Derek L.

    2018-01-01

    Models that formulate mathematical linkages between fish use and habitat characteristics are applied for many purposes. For riverine fish, these linkages are often cast as resource selection functions with variables including depth and velocity of water and distance to nearest cover. Ecologists are now recognizing the role that detection plays in observing organisms, and failure to account for imperfect detection can lead to spurious inference. Herein, we present a flexible N-mixture model to associate habitat characteristics with the abundance of riverine salmonids that simultaneously estimates detection probability. Our formulation has the added benefits of accounting for demographics variation and can generate probabilistic statements regarding intensity of habitat use. In addition to the conceptual benefits, model application to data from the Trinity River, California, yields interesting results. Detection was estimated to vary among surveyors, but there was little spatial or temporal variation. Additionally, a weaker effect of water depth on resource selection is estimated than that reported by previous studies not accounting for detection probability. N-mixture models show great promise for applications to riverine resource selection.

  16. 77 FR 19597 - Listing Endangered and Threatened Species; 12-Month Finding on a Petition To List Chinook Salmon...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-02

    ...We, NMFS, announce a 12-month finding on a petition to list the Chinook salmon (Oncorhynchus tshawytscha) in the Upper Klamath and Trinity Rivers Basin (UKTR) as threatened or endangered and designate critical habitat under the Endangered Species Act (ESA). We have reviewed the status of the UKTR Chinook salmon Evolutionarily Significant Unit (ESU) and considered the best scientific and commercial data available, and conclude that the petitioned action is not warranted. In reaching this conclusion, we conclude that spring-run and fall-run Chinook salmon in the UKTR Basin constitute a single ESU. Based on a comprehensive review of the best scientific and commercial data currently available, and consistent with the 1998 status review and listing determination for the UKTR Chinook salmon ESU, the overall extinction risk of the ESU is considered to be low over the next 100 years. Based on these considerations and others described in this notice, we conclude this ESU is not in danger of extinction throughout all or a significant portion of its range, nor is it likely to become so in the foreseeable future.

  17. A finite-element model for simulation of two-dimensional steady-state ground-water flow in confined aquifers

    USGS Publications Warehouse

    Kuniansky, E.L.

    1990-01-01

    A computer program based on the Galerkin finite-element method was developed to simulate two-dimensional steady-state ground-water flow in either isotropic or anisotropic confined aquifers. The program may also be used for unconfined aquifers of constant saturated thickness. Constant head, constant flux, and head-dependent flux boundary conditions can be specified in order to approximate a variety of natural conditions, such as a river or lake boundary, and pumping well. The computer program was developed for the preliminary simulation of ground-water flow in the Edwards-Trinity Regional aquifer system as part of the Regional Aquifer-Systems Analysis Program. Results of the program compare well to analytical solutions and simulations .from published finite-difference models. A concise discussion of the Galerkin method is presented along with a description of the program. Provided in the Supplemental Data section are a listing of the computer program, definitions of selected program variables, and several examples of data input and output used in verifying the accuracy of the program.

  18. 75 FR 74700 - Grand River Dam Authority; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-01

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No.: 2183-078] Grand River Dam... Dam Authority. e. Name of Project: Markham Ferry Hydroelectric Project. f. Location: The project is..., Grand River Dam Authority, P.O. Box 409, Vinita, Oklahoma 74301-0409, (918) 256-5545 or by e-mail...

  19. 33 CFR 263.13 - Program scope.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... authority. Section 107, River and Harbor Act of 1960, as amended (33 U.S.C 577). (e) Authority for snagging and clearing for navigation. Section 3, River and Harbor Act of 1945 (33 U.S.C 603a). (f) Small beach erosion control project authority. Section 103, River and Harbor Act of 1962, as amended (33 U.S.C. 426g...

  20. Evaluation of the diagnostic accuracy of CareStart G6PD deficiency Rapid Diagnostic Test (RDT) in a malaria endemic area in Ghana, Africa.

    PubMed

    Adu-Gyasi, Dennis; Asante, Kwaku Poku; Newton, Sam; Dosoo, David; Amoako, Sabastina; Adjei, George; Amoako, Nicholas; Ankrah, Love; Tchum, Samuel Kofi; Mahama, Emmanuel; Agyemang, Veronica; Kayan, Kingsley; Owusu-Agyei, Seth

    2015-01-01

    Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most widespread enzyme defect that can result in red cell breakdown under oxidative stress when exposed to certain medicines including antimalarials. We evaluated the diagnostic accuracy of CareStart G6PD deficiency Rapid Diagnostic Test (RDT) as a point-of-care tool for screening G6PD deficiency. A cross-sectional study was conducted among 206 randomly selected and consented participants from a group with known G6PD deficiency status between February 2013 and June 2013. A maximum of 1.6ml of capillary blood samples were used for G6PD deficiency screening using CareStart G6PD RDT and Trinity qualitative with Trinity quantitative methods as the "gold standard". Samples were also screened for the presence of malaria parasites. Data entry and analysis were done using Microsoft Access 2010 and Stata Software version 12. Kintampo Health Research Centre Institutional Ethics Committee granted ethical approval. The sensitivity (SE) and specificity (SP) of CareStart G6PD deficiency RDT was 100% and 72.1% compared to Trinity quantitative method respectively and was 98.9% and 96.2% compared to Trinity qualitative method. Malaria infection status had no significant (P=0.199) change on the performance of the G6PD RDT test kit compared to the "gold standard". The outcome of this study suggests that the diagnostic performance of the CareStart G6PD deficiency RDT kit was high and it is acceptable at determining the G6PD deficiency status in a high malaria endemic area in Ghana. The RDT kit presents as an attractive tool for point-of-care G6PD deficiency for rapid testing in areas with high temperatures and less expertise. The CareStart G6PD deficiency RDT kit could be used to screen malaria patients before administration of the fixed dose primaquine with artemisinin-based combination therapy.

  1. Characterization of groundwater resources in the Trinity and Woodbine aquifers in Texas.

    PubMed

    Chaudhuri, Sriroop; Ale, Srinivasulu

    2013-05-01

    A vast region in north-central Texas, centering on Dallas-Fort Worth metroplex, suffers from intense groundwater drawdown and water quality degradation, which led to inclusion of 18 counties of this region into Priority Groundwater Management Areas. We combined aquifer-based and county-based hydrologic analyses to (1) assess spatio-temporal changes in groundwater level and quality between 1960 and 2010 in the Trinity and Woodbine aquifers underlying the study region, (2) delve into major hydrochemical facies with reference to aquifer hydrostratigraphy, and (3) identify county-based spatial zones to aid in future groundwater management initiatives. Water-level and quality data was obtained from the Texas Water Development Board (TWDB) and analyzed on a decadal scale. Progressive water-level decline was the major concern in the Trinity aquifer with >50% of observations occurring at depths >100 m since the 1980s, an observation becoming apparent only in the 2000s in the Woodbine aquifer. Water quality degradation was the major issue in the Woodbine aquifer with substantially higher percentage of observations exceeding the secondary maximum contaminant levels (SMCL; a non-enforceable threshold set by the United State Environmental Protection Agency (USEPA)) and/or maximum contaminant level (MCL, a legally enforceable drinking water standard set by the USEPA) for sulfate (SO4(2-)), chloride (Cl(-)), and fluoride (F(-)) in each decade. In both aquifers, however, >70% of observations exceeded the SMCL for total dissolved solids indicating high groundwater salinization. Water-level changes in Trinity aquifer also had significant negative impact on water quality. Hydrochemical facies in this region sequentially evolved from Ca-Mg-HCO3 and Ca-HCO3 in the fluvial sediments of the west to Na-SO4-Cl in the deltaic sediments to the east. Sequentially evolving hydrogeochemical facies and increasing salinization closely resembled regional groundwater flow pattern. Distinct spatial zones based on homogenous hydrologic characteristics have become increasingly apparent over time indicating necessity of zone-specific groundwater management strategies. Copyright © 2013 Elsevier B.V. All rights reserved.

  2. Nathaniel Hodges (1629-1688): Plague doctor.

    PubMed

    Duffin, Christopher J

    2016-02-01

    Nathaniel Hodges was the son of Thomas Hodges (1605-1672), an influential Anglican preacher and reformer with strong connections in the political life of Carolingian London. Educated at Westminster School, Trinity College Cambridge and Christ Church College, Oxford, Nathaniel established himself as a physician in Walbrook Ward in the City of London. Prominent as one of a handful of medical men who remained in London during the time of the Great Plague of 1665, he wrote the definitive work on the outbreak. His daily precautions against contracting the disease included fortifying himself with Théodore de Mayerne's antipestilential electuary and the liberal consumption of Sack. Hodges' approach to the treatment of plague victims was empathetic and based on the traditional Galenic method rather than Paracelsianism although he was pragmatic in the rejection of formulae and simples which he judged from experience to be ineffective. Besieged by financial problems in later life, his practice began to fail in the 1680s and he eventually died in a debtor's prison. © The Author(s) 2014.

  3. How coarse is too coarse for salmon spawning substrates?

    NASA Astrophysics Data System (ADS)

    Wooster, J. K.; Riebe, C. S.; Ligon, F. K.; Overstreet, B. T.

    2009-12-01

    Populations of Pacific salmon species have declined sharply in many rivers of the western US. Reversing these declines is a top priority and expense of many river restoration projects. To help restore salmon populations, managers often inject gravel into rivers, to supplement spawning habitat that has been depleted by gravel mining and the effects of dams—which block sediment and thus impair habitat downstream by coarsening the bed where salmon historically spawned. However, there is little quantitative understanding nor a methodology for determining when a river bed has become too coarse for salmon spawning. Hence there is little scientific basis for selecting sites that would optimize the restoration benefits of gravel injection (e.g., sites where flow velocities are suitable but bed materials are too coarse for spawning). To develop a quantitative understanding of what makes river beds too coarse for salmon spawning, we studied redds and spawning use in a series of California and Washington rivers where salmon spawning ability appears to be affected by coarse bed material. Our working hypothesis is that for a given flow condition, there is a maximum “threshold” particle size that a salmon of a given size is able to excavate and/or move as she builds her redd. A second, related hypothesis is that spawning use should decrease and eventually become impossible with increasing percent coverage by immovable particles. To test these hypotheses, we quantified the sizes and spatial distributions of immovably coarse particles in a series of salmon redds in each river during the peak of spawning. We also quantified spawning use and how it relates to percent coverage by immovable particles. Results from our studies of fall-run chinook salmon (Oncorhynchus tshawytsha) in the Feather River suggest that immovable particle size varies as a function of flow velocity over the redd, implying that faster water helps fish move bigger particles. Our Feather River study also suggests that the immovable particle size varies as a function of particle shape. Results from our study of fall run chinook salmon in the Sacramento River suggest that spawning is not possible when the bed is more than 40% covered by immovable particles, consistent with our second hypotheses. We will explore these relationships further in fall 2009, when we collect data on threshold particle sizes and spawning use for both pink salmon (O. gorbuscha) in the Puyallup River, and chinook salmon in the Trinity River. Because pink salmon are significantly smaller than chinook salmon, we expect that their redd building success is constrained by a lower average threshold particle size. We expect that there will be a range of threshold sizes for each run, depending on intra-run variability in fish size and variations in flow velocity. Taken together we expect that our results will demonstrate the feasibility of a new methodology for determining when a bed has become too coarse, thus contributing to more effective management of rivers where monitoring of spawning suitability of natural gravels is a priority.

  4. Trinity Phase 2 Open Science: CTH

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ruggirello, Kevin Patrick; Vogler, Tracy

    CTH is an Eulerian hydrocode developed by Sandia National Laboratories (SNL) to solve a wide range of shock wave propagation and material deformation problems. Adaptive mesh refinement is also used to improve efficiency for problems with a wide range of spatial scales. The code has a history of running on a variety of computing platforms ranging from desktops to massively parallel distributed-data systems. For the Trinity Phase 2 Open Science campaign, CTH was used to study mesoscale simulations of the hypervelocity penetration of granular SiC powders. The simulations were compared to experimental data. A scaling study of CTH up tomore » 8192 KNL nodes was also performed, and several improvements were made to the code to improve the scalability.« less

  5. Interactions between Channel Morphology and the Propagation of Coarse Sediment Augmentations Downstream from Dams

    NASA Astrophysics Data System (ADS)

    Gaeuman, D. A.; Dickenson, S.; Pyles, M.

    2009-12-01

    Gravel augmentations are being implemented in a number of streams where natural recruitment of gravel is impeded by dams. Uncertainties relevant to the management of gravel augmentations include the quantities of gravel needed to achieve habitat benefits at downstream locations and the temporal and spatial scales over which those benefits that will be realized. The solution to such questions depends to a large extent on how gravel slugs evolve as the material is transported downstream, i.e., whether the gravel translates downstream as a coherent wave or whether it tends to disperse. A number of recent studies conducted in laboratory flumes or by numerical simulation that gravels slugs tend to disperse rather than translate. However, these studies do not consider the influence of channel morphology on slug behavior. Initial monitoring results based from 2 California streams suggest that natural channel morphology suppresses slug dispersion because the gravel tends to accumulate in discrete deposition zones. Field mapping and about 200 tracer stones implanted with passive integrated transponder (PIT) tags show that gravel recruitment piles of about 80 tons each placed in Grass Valley Creek in 2007 and 2008 were deposited as 2 new bars immediately downstream. The more upstream of the 2 bars formed during the 2007 winter and spring flood season, whereas the more downstream bar did not appear until the following year. A sharp deposition front and an absence of tracers in the reaches downstream strongly suggest that none of the added gravel was transported downstream beyond the area of bar formation in either year. A relatively small proportion of the mobilized tracer particles (59%) were located following the 2007 flood season, probably due to deep burial in the newly deposited bar and to radio interference caused by the high concentration of tracers in a small area. The proportion of newly introduced or previously-located tracers that were relocated in 2009 was considerably higher (88%), suggesting that average burial depths decrease as the deposition front moves downstream. In addition, about one quarter of the tracers that were missing in 2008 were recovered in 2009, indicating that some of the particles buried during the first flood season were exhumed the following year. Changes in bed topography downstream from a gravel augmentation in the Trinity River provide additional evidence that the presence of discrete deposition zones in stream channels tends to suppress gravel dispersion. Repeat bathymetric surveys conducted in the Trinity River before and after placement of 1000 tons of gravel during a 2008 high-flow event show that a quantity of gravel equivalent to the augmentation volume was deposited on the first bar downstream from the augmentation point.

  6. Evaluation of usefulness of Skylab EREP S-190 and S-192 imagery in multistage forest surveys

    NASA Technical Reports Server (NTRS)

    Langley, P. G. (Principal Investigator)

    1973-01-01

    The author has identified the following significant results. A unique digital timber volume estimation system with digital data for two ERTS-1 MSS bands was tested. The system was tested on a 64-square mile area in Northern California's Trinity Alps. The outcome of a systematic experiment in which possible combinations of the two bands (MSS 5 and 7) were tried, showed than an estimated gain in precision of 50% can be obtained in a multistage sampling design. Especially the difference between the two bands proved to be of major importance for the estimation of biomass in the form of timber volume. Identical tests as the one performed will be conducted with various S-192 bands when the digital data become available.

  7. Evaluation of Trinity Evolution in Patients Undergoing Foot and Ankle Fusion

    ClinicalTrials.gov

    2014-04-07

    Tibiotalar Arthrodesis; Subtalar Arthrodesis; Calcaneocuboid Arthrodesis; Talonavicular Arthrodesis; Double Arthrodesis (i.e. Calcaneocuboid and Talonavicular); Triple Arthrodesis (i.e. Subtalar, Calcaneocuboid, and Talonavicular)

  8. Characterizing the Noble Gas Isotopic Composition of the Barnett Shale and Strawn Group and Constraining the Source of Stray Gas in the Trinity Aquifer, North-Central Texas.

    PubMed

    Wen, Tao; Castro, M Clara; Nicot, Jean-Philippe; Hall, Chris M; Pinti, Daniele L; Mickler, Patrick; Darvari, Roxana; Larson, Toti

    2017-06-06

    This study presents the complete set of stable noble gases for Barnett Shale and Strawn Group production gas together with stray flowing gas in the Trinity Aquifer, Texas. It places new constraints on the source of this stray gas and further shows that Barnett and Strawn gas have distinct crustal and atmospheric noble gas signatures, allowing clear identification of these two sources. Like stray gas, Strawn gas is significantly more enriched in crustal 4 He*, 21 Ne*, and 40 Ar* than Barnett gas. The similarity of Strawn and stray gas crustal noble gas signatures suggests that the Strawn is the source of stray gas in the Trinity Aquifer. Atmospheric 22 Ne/ 36 Ar ratios of stray gas mimic also that of Strawn, further reinforcing the notion that the source of stray gas in this aquifer is the Strawn. While noble gas signatures of Strawn and stray gas are consistent with a single-stage water degassing model, a two-stage oil modified groundwater exsolution fractionation model is required to explain the light atmospheric noble gas signature of Barnett Shale production gas. These distinct Strawn and Barnett noble gas signatures are likely the reflection of distinct evolution histories with Strawn gas being possibly older than that of Barnett Shale.

  9. Investigating the Relationship of Late Pleistocene Terrace Formation and Channel Dynamics within the Texas Gulf Coastal Plain

    NASA Astrophysics Data System (ADS)

    Ellis, T.; Hassenruck-Gudipati, H. J.; Mohrig, D. C.; Goudge, T. A.

    2016-12-01

    Terrace formation along coastal rivers is often assumed to be a direct result of punctuated sea-level fall. However, it has been experimentally shown that terraces commonly form under conditions of constant base level fall. In addition, it has been demonstrated that migrating channels in a bedrock system with steady state rock uplift can produce similar looking terraces. The lower Trinity River, in East Texas, is an ideal location to study allogenic (punctuated external forcing) versus autogenic terrace-building mechanisms using lidar measurements and OSL depositional age constraints (Gavin, 2005). To understand paleochannel influence on terrace construction, we measured channel characteristics for 27 preserved segments of paleochannels that are late Pleistocene in age and associated with 27 of 34 measured terraces along about 90 km of the modern river. There is no clear clustering of terrace elevation that might be tied to distinct sea level change events. Rather, the range of mean terrace elevations is indicative of a more constant system transformation. Based on lidar measurements, all paleochannels are larger than the modern channel, suggesting a wetter climate or larger watershed. Channel width measurements are used to quantify these changes in paleoflow discharge. Paleochannel width, radius of curvature and terrace slope measurements are used to characterize the movement of an incising channel. Based upon OSL terrace dates (Gavin, 2005), known global climate variations can be compared to discharge estimates and investigated as a predictor of terrace formation. If terrace formation occurred during distinct intervals of sea level fall, terraces with similar calculated paleoflow discharges are expected to plot along specific downstream elevation profiles. Assuming avulsion-driven terrace formation occurs at locations of higher channel sinuosity, the sinuosity of paleochannels on terraces is compared to the sinuosity of the modern river. Higher paleo-sinuosity would indicate preferential terrace formation at avulsion prone channel bends. Many factors may contribute to terrace formation during sea level fall and as such, we seek correlations between paleochannel morphology and terrace characteristics to distinguish between different terrace forming mechanisms.

  10. 5. Historic American Buildings Survey, Martin Linsey, Photographer October 2, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Historic American Buildings Survey, Martin Linsey, Photographer October 2, 1966 SOUTHEAST CORNER. - Trinity Episcopal Church, Euclid Avenue & East Twenty-Second Street, Cleveland, Cuyahoga County, OH

  11. WEAVER BALLY ROADLESS AREA, CALIFORNIA.

    USGS Publications Warehouse

    Blake, M.C.; Peters, T.J.

    1984-01-01

    The Weaver Bally Roadless Area includes approximately 22 sq mi in the Shasta-Trinity National Forest, Trinity County, California. A mineral survey indicates that an area of less than 1 sq mi in the northern part of the Weaver Bally Roadless Area has a substantiated mineral-resource potential for gold and silver; a much larger area has a probable mineral-resource potential for the same elements. The geologic terrane precludes the occurrence of fossil fuel resources and there is little promise for the occurrence of additional metallic, energy, or nonmetallic resources in the roadless area. Detailed studies, including further geochemical sampling and drilling could be done in the region of the Globe mines. In addition, the outcrops of dacite porphyry dikes and sills and associated hydrothermal alteration should be mapped in detail.

  12. Integrated modeling of protein-coding genes in the Manduca sexta genome using RNA-Seq data from the biochemical model insect.

    PubMed

    Cao, Xiaolong; Jiang, Haobo

    2015-07-01

    The genome sequence of Manduca sexta was recently determined using 454 technology. Cufflinks and MAKER2 were used to establish gene models in the genome assembly based on the RNA-Seq data and other species' sequences. Aided by the extensive RNA-Seq data from 50 tissue samples at various life stages, annotators over the world (including the present authors) have manually confirmed and improved a small percentage of the models after spending months of effort. While such collaborative efforts are highly commendable, many of the predicted genes still have problems which may hamper future research on this insect species. As a biochemical model representing lepidopteran pests, M. sexta has been used extensively to study insect physiological processes for over five decades. In this work, we assembled Manduca datasets Cufflinks 3.0, Trinity 4.0, and Oases 4.0 to assist the manual annotation efforts and development of Official Gene Set (OGS) 2.0. To further improve annotation quality, we developed methods to evaluate gene models in the MAKER2, Cufflinks, Oases and Trinity assemblies and selected the best ones to constitute MCOT 1.0 after thorough crosschecking. MCOT 1.0 has 18,089 genes encoding 31,666 proteins: 32.8% match OGS 2.0 models perfectly or near perfectly, 11,747 differ considerably, and 29.5% are absent in OGS 2.0. Future automation of this process is anticipated to greatly reduce human efforts in generating comprehensive, reliable models of structural genes in other genome projects where extensive RNA-Seq data are available. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. 76 FR 13422 - Lower Mississippi River Waterway Safety Advisory Committee; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-11

    ... authority found in section 19 of the Coast Guard Authorization Act of 1991, (Pub. L. 102-241) as amended by section 621 of the Coast Guard Authorization Act of 2010, Public Law 111-281. The Lower Mississippi River...

  14. Measurement of flows for two irrigation districts in the lower Colorado River basin, Texas

    USGS Publications Warehouse

    Coplin, L.S.; Liscum, Fred; East, J.W.; Goldstein, L.B.

    1996-01-01

    The Lower Colorado River Authority sells and distributes water for irrigation of rice farms in two irrigation districts, the Lakeside district and the Gulf Coast district, in the lower Colorado River Basin of Texas. In 1993, the Lower Colorado River Authority implemented a water-measurement program to account for the water delivered to rice farms and to promote water conservation. During the rice-irrigation season (summer and fall) of 1995, the U.S. Geological Survey measured flows at 30 sites in the Lakeside district and 24 sites in the Gulf Coast district coincident with Lower Colorado River Authority measuring sites. In each district, the Survey made essentially simultaneous flow measurements with different types of meters twice a day once in the morning and once in the afternoon at each site on selected days for comparison with Lower Colorado River Authority measurements. One-hundred pairs of corresponding (same site, same date) Lower Colorado River Authority and U.S. Geological Survey measurements from the Lakeside district and 104 measurement pairs from the Gulf Coast district are compared statistically and graphically. For comparison, the measurement pairs are grouped by irrigation district and further subdivided by the time difference between corresponding measurements less than or equal to 1 hour or more than 1 hour. Wilcoxon signed-rank tests (to indicate whether two groups of paired observations are statistically different) on Lakeside district measurement pairs with 1 hour or less between measurements indicate that the Lower Colorado River Authority and U.S. Geological Survey measurements are not statistically different. The median absolute percent difference between the flow measurements is 5.9 percent; and 33 percent of the flow measurements differ by more than 10 percent. Similar statistical tests on Gulf Coast district measurement pairs with 1 hour or less between measurements indicate that the Lower Colorado River Authority and U.S. Geological Survey measurements are not statistically different. The median absolute percent difference between the flow measurements is 2.6 percent; and 30 percent of the flow measurements differ by more than 10 percent. The differences noted above between Lower Colorado River Authority and U.S. Geological Survey measurements with 1 hour or less between measurements and the differences between essentially simultaneous U.S. Geological Survey measurements are of similar orders of magnitude and, in some cases, very close.

  15. 1. Historic American Buildings Survey, Martin Linsey, Photographer October 2, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Historic American Buildings Survey, Martin Linsey, Photographer October 2, 1965 NORTH (FRONT) ELEVATION. - Trinity Episcopal Church, Euclid Avenue & East Twenty-Second Street, Cleveland, Cuyahoga County, OH

  16. Solar Energy

    ERIC Educational Resources Information Center

    Building Design and Construction, 1977

    1977-01-01

    Describes 21 completed projects now using solar energy for heating, cooling, or electricity. Included are elementary schools in Atlanta and San Diego, a technical school in Detroit, and Trinity University in San Antonio, Texas. (MLF)

  17. Columbia River System Analysis Model - Phase 1

    DTIC Science & Technology

    1991-10-01

    Reach reservoirs due to the impact of APPENDIX D 6 Wenatchee River flows and additional inflow downstream of Rocky Reach. An inflow link terminates at...AD-A246 639I 11 11111 till11 1 111 US Army Corps of Engineers Hydrologic Engineering Center Columbia River System Analysis Model - Phase I Libby...WORK UNIT ELEMENT NO. NO. NO. ACCESSION NO. 11. TITLE (Include Security Classification) Columbia River System Analysis - Phase I 12. PERSONAL AUTHOR(S

  18. 4. Historic American Buildings Survey, Martin Linsey, Photographer October 2, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Historic American Buildings Survey, Martin Linsey, Photographer October 2, 1965 SOUTH ELEVATION OF CHAPEL. - Trinity Episcopal Church, Euclid Avenue & East Twenty-Second Street, Cleveland, Cuyahoga County, OH

  19. Evaluation of the Diagnostic Accuracy of CareStart G6PD Deficiency Rapid Diagnostic Test (RDT) in a Malaria Endemic Area in Ghana, Africa

    PubMed Central

    Adu-Gyasi, Dennis; Asante, Kwaku Poku; Newton, Sam; Dosoo, David; Amoako, Sabastina; Adjei, George; Amoako, Nicholas; Ankrah, Love; Tchum, Samuel Kofi; Mahama, Emmanuel; Agyemang, Veronica; Kayan, Kingsley; Owusu-Agyei, Seth

    2015-01-01

    Background Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most widespread enzyme defect that can result in red cell breakdown under oxidative stress when exposed to certain medicines including antimalarials. We evaluated the diagnostic accuracy of CareStart G6PD deficiency Rapid Diagnostic Test (RDT) as a point-of-care tool for screening G6PD deficiency. Methods A cross-sectional study was conducted among 206 randomly selected and consented participants from a group with known G6PD deficiency status between February 2013 and June 2013. A maximum of 1.6ml of capillary blood samples were used for G6PD deficiency screening using CareStart G6PD RDT and Trinity qualitative with Trinity quantitative methods as the “gold standard”. Samples were also screened for the presence of malaria parasites. Data entry and analysis were done using Microsoft Access 2010 and Stata Software version 12. Kintampo Health Research Centre Institutional Ethics Committee granted ethical approval. Results The sensitivity (SE) and specificity (SP) of CareStart G6PD deficiency RDT was 100% and 72.1% compared to Trinity quantitative method respectively and was 98.9% and 96.2% compared to Trinity qualitative method. Malaria infection status had no significant (P=0.199) change on the performance of the G6PD RDT test kit compared to the “gold standard”. Conclusions The outcome of this study suggests that the diagnostic performance of the CareStart G6PD deficiency RDT kit was high and it is acceptable at determining the G6PD deficiency status in a high malaria endemic area in Ghana. The RDT kit presents as an attractive tool for point-of-care G6PD deficiency for rapid testing in areas with high temperatures and less expertise. The CareStart G6PD deficiency RDT kit could be used to screen malaria patients before administration of the fixed dose primaquine with artemisinin-based combination therapy. PMID:25885097

  20. Sedimentologic and Geometric Characterization of Turbidites of Brazos-Trinity Basin IV in the Gulf of Mexico: Preliminary Results of IODP Expedition 308

    NASA Astrophysics Data System (ADS)

    Gutierrez-Pastor, J.; Pirmez, C.; Flemings, P. B.; Behrmann, J. H.; John, C. M.

    2005-12-01

    Brazos Trinity Basin IV is located about 200 km offshore Texas, and belongs to a linked system of four intra slope mini basins. Basin IV provides a type section to characterize turbidites in salt withdrawal mini-basins of the Gulf of Mexico. IODP Expedition 308 has cored and logged complete pre-fan and fan sequences that are clearly distinguished with high-resolution seismic profiles at Brazos Trinity Basin IV at Sites U1319, U1320 and U1321. Seismically imaged pre-fan and fan units also can be distinguished and correlated with the sedimentological and logging data. Turbidite facies display distinct properties in terms of grain size, bed thickness, color, organic matter content, vertical organization of beds and lateral distribution in all the units of the fan through the basin. The pre-fan sequence is composed of terrigenous laminated clay with color banding and it is interpreted to result from deposition from fluvial plumes and/or muddy turbidity currents overspilling from basins upstream of Basin IV. The lower fan is characterized by laminated and bioturbated muds with thin beds of silt and sand, and represent the initial infill of the basin by mostly muddy turbidity currents, although an exceptionally sand-rich unit occurs at the base of the lower fan. The middle and upper fan represent the main pulses of turbidity current influx into Basin IV, and contain fine to medium sand turbidite beds organized in packets ranging in thickness from 5 to 25 m. The middle fan displays an overall upward increase in sand content at Site U1320, suggesting increased flow by-pass from the updip basins through time. Key examples of turbidites from each fan unit are analysed in detail to infer the depositional processes and infilling history of Brazos-Trinity Basin IV. The study of turbidites in a calibrated basin such as Basin IV provides ground truth for the sedimentological processes and resultant seismic facies, which can be used to interpret the infill history of other intraslope basins with similar seismic facies in the Gulf of Mexico where well calibration is not available.

  1. Pore Water Chemistry as Sensitive Indicators for Fluid Flow in Brazos-Trinity Basin #4 and Ursa Basin, Northeast Gulf of Mexico (IODP Expedition 308)

    NASA Astrophysics Data System (ADS)

    Jiang, S.; Gilhooly, W.; Takano, Y.; Flemings, P.; Behrmann, J.; John, C.

    2005-12-01

    Rapid sediment loading drives overpressure in marine sedimentary basins around the world. During IODP Expedition 308, two basins (Brazos-Trinity Basin #4 and Ursa Basin) with large different sedimentary loading of turbidite and hemipelagic sediments in the northeast Gulf of Mexico, were investigated to characterize in-situ spatial variations in temperature, pressure, and rock and fluid physical properties and chemistry. Pore water chemical compositions including alkalinity, salinity, pH, anions (Cl, SO4, PO4, H4SiO4), cations (Na, K, Ca, Mg), trace metals (Li, B, Sr, Ba, Fe, Mn), were analyzed in four drill holes at sites U1319, U1320, U1322, and U1324, in the Brazos-Trinity Basin #4 and Ursa Basin. At all sites, pore water chemistry shows great variability at shallow depths with maximam or miminum values corresponding well to seismic reflectors and lithostratigraphic units. The sulfate profile shows a dramatic decrease in SO4 content with a sulfate-methane interface (SMI) of 15 mbsf at Site 1319 and 22 mbsf at Site 1320 in the Brazos-Trinity Basin #4 Basin. In contrast, the sulfate- methane interfaces (SMI) are much deeper in Ursa Basin, i.e., 74 mbsf at Site 1322, and 94 mbsf at Site 2324. The deep SMI in Ursa Basin suggest relatively slow anaerobic degradation of organic matter considering the location of drilling site though we do not determine sulfate reducing rate with organic matter or methane as substrate at this leg. The downhole consumption of sulfate coincides with a concomitant increase in alkalinity and a decrease of Mn, Ca, Mg, Sr, and Li. Furthermore, initial pore water chemistry results appear to be influence by hydrogeologic fluid flow in both basins. Coincidence between pore water profile concentration maxima and parallel seismic reflectors may suggest that these seismic surfaces occur along specific stratigraphic units, which serve as channels for lateral fluid flow. Overall, the downhole variations in interstitial water chemistry may reflect a combination of processes, including anaerobic degradation of organic matter, diagenetic carbonate precipitation/dissolution, and fluid flow pathways.

  2. 77 FR 52711 - Sabine River Authority of Texas and Sabine River Authority, State of Louisiana; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-30

    ..., containing two vertical Kaplan turbines with an authorized installed capacity of 81 megawatts (MW); (5) a 220... construct a 1.3-MW minimum flow turbine-generator at the project spillway. The offer of settlement involves...

  3. 79. SITE INSTRUMENTATION: INTERIOR OF INSTRUMENTATION BUNKER AT 800 WEST, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    79. SITE INSTRUMENTATION: INTERIOR OF INSTRUMENTATION BUNKER AT 800 WEST, WITH WOODEN WORK BENCH - White Sands Missile Range, Trinity Site, Vicinity of Routes 13 & 20, White Sands, Dona Ana County, NM

  4. 2. Historic American Buildings Survey, Martin Linsey, Photographer October 26, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Historic American Buildings Survey, Martin Linsey, Photographer October 26, 1965 SOUTHWEST CORNER (22ND ST. SIDE). - Trinity Episcopal Church, Euclid Avenue & East Twenty-Second Street, Cleveland, Cuyahoga County, OH

  5. 7. Historic American Buildings Survey, Martin Linsey, Photographer March 23, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Historic American Buildings Survey, Martin Linsey, Photographer March 23, 1966 PHOTOCOPY OF ARCHITECT'S RENDERING FOR ROMANESQUE DESIGN. - Trinity Episcopal Church, Euclid Avenue & East Twenty-Second Street, Cleveland, Cuyahoga County, OH

  6. 8. Historic American Buildings Survey, Martin Linsey, Photographer March 23, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. Historic American Buildings Survey, Martin Linsey, Photographer March 23, 1966 PHOTOCOPY OF ARCHITECT'S RENDERING FOR REVISED DESIGN. - Trinity Episcopal Church, Euclid Avenue & East Twenty-Second Street, Cleveland, Cuyahoga County, OH

  7. Detection of Unknown Crypts under the Floor in the Holy Trinity Church (Dominican Monastery) in Krakow, Poland

    NASA Astrophysics Data System (ADS)

    Strzępowicz, Anna; Łyskowski, Mikołaj; Ziętek, Jerzy; Tomecka-Suchoń, Sylwia

    2018-03-01

    The GPR surveying method belongs to non-invasive and quick geophysical methods, applied also in archaeological prospection. It allows for detecting archaeological artefacts buried under historical layers, and also those which can be found within buildings of historical value. Most commonly, just as in this particular case, it is used in churches, where other non-invasive localisation methods cannot be applied. In a majority of cases, surveys bring about highly positive results, enabling the site and size of a specific object to be indicated. A good example are the results obtained from the measurements carried out in the Basilica of Holy Trinity, belonging to the Dominican Monastery in Krakow. They allowed for confirming the location of the already existing crypts and for indicating so-far unidentified objects.

  8. Survey of the Urban Bell in the Belfry of St. Trinity Church in Krosno

    NASA Astrophysics Data System (ADS)

    Oleniacz, Grzegorz; Skrzypczak, Izabela; Ślęczka, Lucjan; Świętoń, Tomasz; Rymar, Marta

    2017-06-01

    Urban is one of the three bells in the belfry of St. Trinity Church in Krosno. It is the largest one, with diameter equal to 1,535 mm and it is commonly considered as one of the largest historical bells in Poland. The total mass of all the three bells is close to 4,200 kilograms, so the dynamic actions produced by swinging have a great effect on the supporting structure and on the tower. However, the exact weight of the biggest bell isn't known, and for safety reasons it should be estimated in order to verify the real dynamic forces affecting the structure. The paper describes the method of Urban bell's survey using terrestrial laser scanning and a total station as a task to estimate its weight by determining its volume.

  9. Comparability: manufacturing, characterization and controls, report of a UK Regenerative Medicine Platform Pluripotent Stem Cell Platform Workshop, Trinity Hall, Cambridge, 14–15 September 2015

    PubMed Central

    Williams, David J; Archer, Richard; Archibald, Peter; Bantounas, Ioannis; Baptista, Ricardo; Barker, Roger; Barry, Jacqueline; Bietrix, Florence; Blair, Nicholas; Braybrook, Julian; Campbell, Jonathan; Canham, Maurice; Chandra, Amit; Foldes, Gabor; Gilmanshin, Rudy; Girard, Mathilde; Gorjup, Erwin; Hewitt, Zöe; Hourd, Paul; Hyllner, Johan; Jesson, Helen; Kee, Jasmin; Kerby, Julie; Kotsopoulou, Nina; Kowalski, Stanley; Leidel, Chris; Marshall, Damian; Masi, Louis; McCall, Mark; McCann, Conor; Medcalf, Nicholas; Moore, Harry; Ozawa, Hiroki; Pan, David; Parmar, Malin; Plant, Anne L; Reinwald, Yvonne; Sebastian, Sujith; Stacey, Glyn; Thomas, Robert J; Thomas, Dave; Thurman-Newell, Jamie; Turner, Marc; Vitillo, Loriana; Wall, Ivan; Wilson, Alison; Wolfrum, Jacqueline; Yang, Ying; Zimmerman, Heiko

    2016-01-01

    This paper summarizes the proceedings of a workshop held at Trinity Hall, Cambridge to discuss comparability and includes additional information and references to related information added subsequently to the workshop. Comparability is the need to demonstrate equivalence of product after a process change; a recent publication states that this ‘may be difficult for cell-based medicinal products’. Therefore a well-managed change process is required which needs access to good science and regulatory advice and developers are encouraged to seek help early. The workshop shared current thinking and best practice and allowed the definition of key research questions. The intent of this report is to summarize the key issues and the consensus reached on each of these by the expert delegates. PMID:27404768

  10. MANHATTAN: The View From Los Alamos of History's Most Secret Project

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Carr, Alan Brady

    This presentation covers the political and scientific events leading up to the creation of the Manhattan Project. The creation of the Manhattan Project’s three most significant sites--Los Alamos, Oak Ridge, and Hanford--is also discussed. The lecture concludes by exploring the use of the atomic bombs at the end of World War II. The presentation slides include three videos. The first is a short clip of the 100-ton Test. The 100-Ton Test was history’s largest measured blast at that point in time; it was a pre-test for Trinity, the world’s first nuclear detonation. The second clip features views of Trinity followedmore » a short statement by the Laboratory’s first director, J. Robert Oppenheimer. The final clip shows Norris Bradbury talking about arms control.« less

  11. Trinity mysteries: university, elite schooling and sport in Ireland.

    PubMed

    Finn, Gerry P T

    2010-01-01

    The development of sport in Ireland was, contrary to some arguments, highly influenced by English examples and Anglo-Irish institutions. Trinity College and prestigious Irish schools did have an impact, as did the number of Irish students sent to England for public school or university education. Athleticism was evident in Ireland as it was in England. Although the development of soccer did follow a slightly different trajectory from other sports, as was also the case in both England and Scotland, this does not mean that it departed from this broad evolutionary model of Irish sport. Yet this was Ireland: and Ireland was different. As opposition to British rule intensified, forms of sporting participation took on more and more of a national symbolism. The outcome was the emergence of a very potent form of athleticism: an Irish athleticism for an Irish people.

  12. Comparability: manufacturing, characterization and controls, report of a UK Regenerative Medicine Platform Pluripotent Stem Cell Platform Workshop, Trinity Hall, Cambridge, 14-15 September 2015.

    PubMed

    Williams, David J; Archer, Richard; Archibald, Peter; Bantounas, Ioannis; Baptista, Ricardo; Barker, Roger; Barry, Jacqueline; Bietrix, Florence; Blair, Nicholas; Braybrook, Julian; Campbell, Jonathan; Canham, Maurice; Chandra, Amit; Foldes, Gabor; Gilmanshin, Rudy; Girard, Mathilde; Gorjup, Erwin; Hewitt, Zöe; Hourd, Paul; Hyllner, Johan; Jesson, Helen; Kee, Jasmin; Kerby, Julie; Kotsopoulou, Nina; Kowalski, Stanley; Leidel, Chris; Marshall, Damian; Masi, Louis; McCall, Mark; McCann, Conor; Medcalf, Nicholas; Moore, Harry; Ozawa, Hiroki; Pan, David; Parmar, Malin; Plant, Anne L; Reinwald, Yvonne; Sebastian, Sujith; Stacey, Glyn; Thomas, Robert J; Thomas, Dave; Thurman-Newell, Jamie; Turner, Marc; Vitillo, Loriana; Wall, Ivan; Wilson, Alison; Wolfrum, Jacqueline; Yang, Ying; Zimmerman, Heiko

    2016-07-01

    This paper summarizes the proceedings of a workshop held at Trinity Hall, Cambridge to discuss comparability and includes additional information and references to related information added subsequently to the workshop. Comparability is the need to demonstrate equivalence of product after a process change; a recent publication states that this 'may be difficult for cell-based medicinal products'. Therefore a well-managed change process is required which needs access to good science and regulatory advice and developers are encouraged to seek help early. The workshop shared current thinking and best practice and allowed the definition of key research questions. The intent of this report is to summarize the key issues and the consensus reached on each of these by the expert delegates.

  13. Sandstone detrital modes and basinal setting of the Trinity Peninsula Group, northern Graham Land, Antarctic Peninsula: A preliminary survey

    NASA Astrophysics Data System (ADS)

    Smellie, J. L.

    Sandstone detrital modes for a representative sample of the Trinity Peninsula Group in northern Graham Land are described and assessed. Whereas the volumetrically dominant quartz and feldspar were derived principally from erosion of a plutonic and high-rank metamorphic terrane, the lithic population was derived mainly from a volcanic cover. The data clearly indicate the presence of two major sandstone suites (petro-facies I and II) with distinctive and probably separate provenances. Further scope for subdivision is limited by the small sample set, but four petrofacies (Ia, Ib, IIa, and IIb) may be present, three of which correspond with previously described lithostratigraphical units (Legoupil, Hope Bay, and View Point formations). The sample distribution and detrital modes enable approximate geographical limits to be assigned to each petrofacies for the first time, although the nature of the boundaries (stratigraphical or structural) is unknown. Petrofacies II could have been derived from an active magmatic arc and deposited in a forearc basin (sensu lato) or series of basins at a major consuming margin. Petrofacies I is a much more quartzose suite, although otherwise petrographically very similar to petrofacies II. Its depositional setting is ambiguous on the basis of the data presently available, and deposition can only be said to have occurred at either an active or a passive continental margin. Finally, there is the possibility that strike-slip faulting has structurally shuffled the Trinity Peninsula Group, causing the pronounced age and compositional contrasts observed.

  14. Overpressure and consolidation near the seafloor of Brazos-Trinity Basin IV, northwest deepwater Gulf of Mexico

    NASA Astrophysics Data System (ADS)

    Schneider, Julia; Flemings, Peter B.; Dugan, Brandon; Long, Hui; Germaine, John T.

    2009-05-01

    Pore water overpressures (u*) within mudstones beneath Brazos-Trinity Basin IV (deepwater Gulf of Mexico, offshore Texas) are greater than 70% of the hydrostatic vertical effective stress (σ'vh) [λ* = 0.7 = (u*/σ'vh)]. These results are compatible with recent observations that suggest sedimentation rates in this region are rapid (6 mm/a). We compare the petrophysical properties and pore pressures within a 127-m-thick package of mudstone penetrated at two locations: Integrated Ocean Drilling Program (IODP) sites U1319 and U1320. Site U1319 is at the margin of Brazos-Trinity Basin IV, whereas Site U1320 lies at its center, beneath 180 m of turbidite fill. Experimentally derived preconsolidation stresses and an in situ pore pressure measurement record overpressure at Site U1319 and Site U1320 (λ* ˜ 0.2 to 0.8 and λ* ˜ 0.8, respectively). We use these data to define an average vertical effective stress gradient. Assuming that void ratio (e) is proportional to the log of vertical effective stress (σ'v), we predict pore pressures (u) throughout the mudstone at both sites using bulk density data. Overpressures are greater at Site U1320 due to rapid deposition of the overlying turbidites. However, a large fraction of the overpressure induced by the turbidite load applied at Site U1320 has dissipated by drainage into the overlying basin fill. High overpressures near the seafloor drive shallow fluid flow, reduce slope stability, and may explain large submarine landslides.

  15. Quantifying forest vertical structure to determine bird habitat quality in the Greenbelt Corridor, Denton, TX

    NASA Astrophysics Data System (ADS)

    Matsubayashi, Shiho

    This study presents the integration of light detection and range (LiDAR) and hyperspectral remote sensing to create a three-dimensional bird habitat map in the Greenbelt Corridor of the Elm Fork of the Trinity River. This map permits to examine the relationship between forest stand structure, landscape heterogeneity, and bird community composition. A biannual bird census was conducted at this site during the breeding seasons of 2009 and 2010. Census data combined with the three-dimensional map suggest that local breeding bird abundance, community structure, and spatial distribution patterns are highly influenced by vertical heterogeneity of vegetation surface. For local breeding birds, vertical heterogeneity of canopy surface within stands, connectivity to adjacent forest patches, largest forest patch index, and habitat (vegetation) types proved to be the most influential factors to determine bird community assemblages. Results also highlight the critical role of secondary forests to increase functional connectivity of forest patches. Overall, three-dimensional habitat descriptions derived from integrated LiDAR and hyperspectral data serve as a powerful bird conservation tool that shows how the distribution of bird species relates to forest composition and structure at various scales.

  16. The Relevancy of the Clausewitzian Trinity to the War on Terrorism

    DTIC Science & Technology

    2002-04-14

    Jordan, Tajikistan, Uzbekistan, Syria, China, Pakistan, Bangladesh, Malaysia , Myanmar, Indonesia, Philippines, Lebanon, Iraq, Saudi Arabia, Kuwait...routinely discounted. American patriotism, obesity , emotionality, self-centeredness: these are the crucial issues.”111

  17. 28. MCDONALD RANCH: VIEW OF RANCH HOUSE FROM WESTSOUTHWEST, WITH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    28. MCDONALD RANCH: VIEW OF RANCH HOUSE FROM WEST-SOUTHWEST, WITH OSCURA MOUNTAINS IN BACKGROUND - White Sands Missile Range, Trinity Site, Vicinity of Routes 13 & 20, White Sands, Dona Ana County, NM

  18. 27 CFR 9.184 - Trinity Lakes.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    .... Provisional Edition 1986; (2) Whisky Bill Peak, Calif. Provisional Edition 1986; (3) Damnation Peak, Calif...) Proceed due east on township line T37N/T36N onto the Whisky Bill Peak, California quadrangle map to the...

  19. 27 CFR 9.184 - Trinity Lakes.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    .... Provisional Edition 1986; (2) Whisky Bill Peak, Calif. Provisional Edition 1986; (3) Damnation Peak, Calif...) Proceed due east on township line T37N/T36N onto the Whisky Bill Peak, California quadrangle map to the...

  20. 78 FR 53666 - Drawbridge Operation Regulation; Wolf River, Gills Landing and Winneconne, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-30

    ... the Upper Fox River. The Wolf River has two drawbridges over the waterway. The Winneconne Highway... the Fox River that connect directly with the Wolf River. This rule will establish consistent operating... by WDOT and Fox River Valley Navigation Authority for the past 10 to 15 years. These agencies, along...

  1. Use of Bedrock and Geomorphic Mapping Compilations in Assessing Geologic Hazards at Recreation Sites on National Forests in NW California

    NASA Astrophysics Data System (ADS)

    de La Fuente, J. A.; Bell, A.; Elder, D.; Mowery, R.; Mikulovsky, R.; Klingel, H.; Stevens, M.

    2010-12-01

    Geologic hazards on US Forest Service lands have a long history of producing catastrophic events. In 1890 (prior to the establishment of the Forest Service), the China Mine landslide buried a miner’s camp along the Trinity River in NW California, killing a number of miners. An earthquake in southwestern Montana triggered a massive landslide which killed 28 people in a US Forest Service campground in 1959. In 1980, Mount St. Helens erupted in Oregon, killing 57 people. Debris flows from a winter storm in 2003 on the burned hillslopes of the San Bernardino National Forest in California killed 14 people at the St. Sophia youth Camp. A rockfall in the summer of 2009 in Lassen National Park killed a 9 year old boy. The most recent catastrophe occurred on June 11, 2010 when 20 people died in a flash flood at the Albert Pike Campground on the Ouachita National Forest. These and other disasters point out the need for geologic hazard mapping and assessments on the National Forests. The US Forest Service (USFS) is currently assessing geologic hazards in the Northern Province of USFS Region 5 (Pacific Southwest Region), which includes the Klamath, Mendocino, Shasta-Trinity, and Six Rivers National Forests. The most common geologic hazards (relatively short return intervals) in this area include landslides, rock falls, debris flows, flooding, temporary dam failures (landslide or woody debris), naturally occurring hazardous materials, (asbestos radon, etc), and rarely, karst subsidence. Seismic and volcanic hazards are also important at longer return intervals. This assessment will be conducted in three phases, and is patterned after a process developed by Region 8 of the US Forest Service. The first phase is a reconnaissance level assessment based on existing information such as spatial databases, aerial photos, Digital Elevation Models, State of California Alquist-Priolo Earthquake Fault Zone maps, previous investigations and anecdotal accounts of past events. The bedrock coverage is a compilation of the best available mapping for all National Forests in California. The geomorphic coverage includes features such as active and dormant landslides, alluvial fans, headwall basins, glacial features, and valley inner gorge. Criteria will be developed which utilize elements of this data to evaluate geologic hazards in the vicinity of developed recreation sites. The second phase will be conducted later and involves site specific analyses focusing on areas identified as higher hazard in the first phase, along with verification and updating of phase 1 findings. The third phase will complete any site level geologic or hydrologic investigations, and wrap up the hazard assessment process. A summary report with hazard maps and recommendations will be prepared at the end of each phase. The overriding goal of this project is to provide sound geologic information to managers so they can use a science-based approach in recognizing and managing geologic hazards at recreation sites.

  2. Vulnerability of ground water to contamination, northern Bexar County, Texas

    USGS Publications Warehouse

    Clark, Amy R.

    2003-01-01

    The Trinity aquifer, composed of Lower Cretaceous carbonate rocks, largely controls the ground-water hydrology in the study area of northern Bexar County, Texas. Discharge from the Trinity aquifer recharges the downgradient, hydraulically connected Edwards aquifer one of the most permeable and productive aquifers in the Nation and the sole source of water for more than a million people in south-central Texas. The unconfined, karstic outcrop of the Edwards aquifer makes it particularly vulnerable to contamination resulting from urbanization that is spreading rapidly northward across an "environmentally sensitive" recharge zone of the Edwards aquifer and its upgradient "catchment area," composed mostly of the less permeable Trinity aquifer.A better understanding of the Trinity aquifer is needed to evaluate water-management decisions affecting the quality of water in both the Trinity and Edwards aquifers. A study was made, therefore, in cooperation with the San Antonio Water System to assess northern Bexar County's vulnerability to ground-water contamination. The vulnerability of ground water to contamination in this area varies with the effects of five categories of natural features (hydrogeologic units, faults, caves and (or) sinkholes, slopes, and soils) that occur on the outcrop and in the shallow subcrop of the Glen Rose Limestone.Where faults affect the rates of recharge or discharge or the patterns of ground-water flow in the Glen Rose Limestone, they likewise affect the risk of water-quality degradation. Caves and sinkholes generally increase the vulnerability of ground water to contamination, especially where their occurrences are concentrated. The slope of land surface can affect the vulnerability of ground water by controlling where and how long a potential contaminant remains on the surface. Disregarding the exception of steep slopes which are assumed to have no soil cover the greater the slope, the less the risk of ground-water contamination. Because most soils in the study area are uniformly thin, they have only minimal effect on the vulnerability of ground water to contamination.The results of hydrogeologic mapping during the present study divide the outcrop of the Glen Rose Limestone into five mappable intervals, labeled (youngest to oldest) A through E. Of these intervals, only the middle (C) and the lowermost (E) generally provide appreciable permeability.The vulnerability assessment provided herein was determined by combining the presumed effects of selected natural features (with individual vulnerability ratings ranging from 0 through 35) using a grid-based, multilayer system of digital datasets and geographic information system analysis. The resulting vulnerability map comprises composite vulnerability ratings that range from 26 through 104. The relatively less vulnerable areas those containing no faults, sinkholes, or caves occupy about 92 percent of the study area. The most vulnerable areas are those containing both a fault and one or more caves. The distribution of the most vulnerable areas which trend from southwest to northeast, roughly parallel to the Balcones fault zone occur mainly where faults intersect caves.

  3. 78 FR 69124 - Trinity Adaptive Management Working Group; Public Meeting and Teleconference

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-18

    ... Recommendation, Bylaw discussion, 2014 Flow Alternatives, Status of Klamath fall flow release, Mining issues...Point, or rich text file). Registered speakers who wish to expand on their oral statements, or those who...

  4. 36 CFR 7.91 - Whiskeytown Unit, Whiskeytown-Shasta-Trinity National Recreation Area.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... marine toilets so constructed as to permit wastes to be discharged directly into the water shall have such facilities sealed to prevent discharge. (2) Chemical or other type marine toilets with approved...

  5. 36 CFR 7.91 - Whiskeytown Unit, Whiskeytown-Shasta-Trinity National Recreation Area.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... marine toilets so constructed as to permit wastes to be discharged directly into the water shall have such facilities sealed to prevent discharge. (2) Chemical or other type marine toilets with approved...

  6. 75 FR 25197 - Shasta Trinity National Forest, South Fork Management Unit, California Salt Timber Harvest and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-07

    ... use telecommunication devices for the deaf (TDD) may call the Federal Information Relay Service (FIRS..., Environmental Protection Information Center and Kiamath Forest Alliance. On February 5, 2010, Appeal Reviewing...

  7. Development of a Faith-Based Stress Management Intervention in a Rural African American Community.

    PubMed

    Bryant, Keneshia; Moore, Todd; Willis, Nathaniel; Hadden, Kristie

    2015-01-01

    Faith-based mental health interventions developed and implemented using a community-based participatory research (CBPR) approach hold promise for reaching rural African Americans and addressing health disparities. To describe the development, challenges, and lessons learned from the Trinity Life Management, a faith-based stress management intervention in a rural African American faith community. The researchers used a CBPR approach by partnering with the African American faith community to develop a stress management intervention. Development strategies include working with key informants, focus groups, and a community advisory board (CAB). The community identified the key concepts that should be included in a stress management intervention. The faith-based "Trinity Life Management" stress management intervention was developed collaboratively by a CAB and an academic research team. The intervention includes stress management techniques that incorporate Biblical principles and information about the stress-distress-depression continuum.

  8. Daedalus in Dublin: A Physicist's Labyrinth

    NASA Astrophysics Data System (ADS)

    O'Connor, Thomas C.

    2014-03-01

    I describe some of the rich physical and natural-philosophy heritage of the urban center of the Irish capital Dublin (first tour) and its environs (second tour), in a two-part excursion that could take between two and eight hours in toto. In terms of history, both tours center around the nineteenth century. The first tour is located in and around Trinity College, and we encounter such personages as William Rowan Hamilton, George Fitzgerald, Ernest Walton, and Erwin Schrödinger, among others. Moving away from Trinity College, the second tour explores some of the periphery of the city. I describe the role of politics, money, and religion in shaping the emergence and development of scientific talent among the Irish people, and consequently the footprint left by physics in the city today, with its numerous sites and names that put Irish physics in an honorable place among the nations.

  9. Effectiveness of Workshop Style Teaching in Students' Learning of Introductory Electricity and Magnetism

    NASA Astrophysics Data System (ADS)

    Mehta, Nirav; Cheng, Kelvin

    2012-10-01

    We have developed an interactive workshop-style course for our introductory calculus-based physics sequence at Trinity University. Lecture is limited to approximately 15 min. at the beginning of class, and the remainder of the 50-min. class is devoted to inquiry-based activities and problem solving. So far, lab is done separately and we have not incorporated the lab component into the workshop model. We use the Brief Electricity and Magnetism Assessment (BEMA) to compare learning gains between the workshop and traditional lecture-based course for the Spring 2012 semester. Both the workshop and lecture courses shared the same inquiry-based lab component that involved pre-labs, prediction-observation and post-lab activities. Our BEMA results indicate statistically significant improvement in overall learning gains compared to the traditional course. We compare our workshop BEMA scores both to traditional lecture scores here at Trinity and to those from other institutions.

  10. 33 CFR 263.26 - Small beach erosion control project authority (Section 103).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Small beach erosion control....26 Small beach erosion control project authority (Section 103). (a) Legislative authority. Section 103(a) of the River and Harbor Act of 1962, as amended by section 310 of the River and Harbor Act of...

  11. Life beneath the surface of the central Texan Balcones Escarpment: genus Anillinus Casey, 1918 (Coleoptera, Carabidae, Bembidiini): new species, a key to the Texas species, and notes about their way of life and evolution

    PubMed Central

    Sokolov, Igor M.; Reddell, James R.; Kavanaugh, David H.

    2014-01-01

    Abstract The Texas fauna of the genus Anillinus Casey, 1918 includes three previously described species (A. affabilis (Brues), 1902, A. depressus (Jeannel), 1963 and A. sinuatus (Jeannel), 1963) and four new species here described: A. acutipennis Sokolov & Reddell, sp. n. (type locality: Fort Hood area, Bell County, Texas); A. comalensis Sokolov & Kavanaugh, sp. n. (type locality: 7 miles W of New Braunfels, Comal County, Texas); A. forthoodensis Sokolov & Reddell, sp. n. (type locality: Fort Hood area, Bell County, Texas); A. wisemanensis Sokolov & Kavanaugh, sp. n. (type locality: Wiseman Sink, Hays County, Texas). A key for identification of adults of these species is provided. The fauna includes both soil- and cave-inhabiting species restricted to the Balcones Fault Zone and Lampasas Cut Plain and adjacent areas underlain by the Edwards-Trinity Aquifer. Based on morphological and distributional data, we hypothesize that four lineages of endogean Anillinus species extended their geographical ranges from a source area in the Ouachita-Ozark Mountains to the Balconian region in central Texas. There the cavernous Edwards-Trinity aquifer system provided an excellent refugium as the regional climate in the late Tertiary and early Quaternary became increasingly drier, rendering life at the surface nearly impossible for small, litter-inhabiting arthropods. Isolated within the Edwards-Trinity aquifer system, these anilline lineages subsequently differentiated, accounting for the currently known diversity. The paucity of specimens and difficulty in collecting them suggest that additional undiscovered species remain to be found in the region. PMID:25061356

  12. Life beneath the surface of the central Texan Balcones Escarpment: genus Anillinus Casey, 1918 (Coleoptera, Carabidae, Bembidiini): new species, a key to the Texas species, and notes about their way of life and evolution.

    PubMed

    Sokolov, Igor M; Reddell, James R; Kavanaugh, David H

    2014-01-01

    The Texas fauna of the genus Anillinus Casey, 1918 includes three previously described species (A. affabilis (Brues), 1902, A. depressus (Jeannel), 1963 and A. sinuatus (Jeannel), 1963) and four new species here described: A. acutipennis Sokolov & Reddell, sp. n. (type locality: Fort Hood area, Bell County, Texas); A. comalensis Sokolov & Kavanaugh, sp. n. (type locality: 7 miles W of New Braunfels, Comal County, Texas); A. forthoodensis Sokolov & Reddell, sp. n. (type locality: Fort Hood area, Bell County, Texas); A. wisemanensis Sokolov & Kavanaugh, sp. n. (type locality: Wiseman Sink, Hays County, Texas). A key for identification of adults of these species is provided. The fauna includes both soil- and cave-inhabiting species restricted to the Balcones Fault Zone and Lampasas Cut Plain and adjacent areas underlain by the Edwards-Trinity Aquifer. Based on morphological and distributional data, we hypothesize that four lineages of endogean Anillinus species extended their geographical ranges from a source area in the Ouachita-Ozark Mountains to the Balconian region in central Texas. There the cavernous Edwards-Trinity aquifer system provided an excellent refugium as the regional climate in the late Tertiary and early Quaternary became increasingly drier, rendering life at the surface nearly impossible for small, litter-inhabiting arthropods. Isolated within the Edwards-Trinity aquifer system, these anilline lineages subsequently differentiated, accounting for the currently known diversity. The paucity of specimens and difficulty in collecting them suggest that additional undiscovered species remain to be found in the region.

  13. An evaluation of soil sampling for 137Cs using various field-sampling volumes.

    PubMed

    Nyhan, J W; White, G C; Schofield, T G; Trujillo, G

    1983-05-01

    The sediments from a liquid effluent receiving area at the Los Alamos National Laboratory and soils from an intensive study area in the fallout pathway of Trinity were sampled for 137Cs using 25-, 500-, 2500- and 12,500-cm3 field sampling volumes. A highly replicated sampling program was used to determine mean concentrations and inventories of 137Cs at each site, as well as estimates of spatial, aliquoting, and counting variance components of the radionuclide data. The sampling methods were also analyzed as a function of soil size fractions collected in each field sampling volume and of the total cost of the program for a given variation in the radionuclide survey results. Coefficients of variation (CV) of 137Cs inventory estimates ranged from 0.063 to 0.14 for Mortandad Canyon sediments, whereas CV values for Trinity soils were observed from 0.38 to 0.57. Spatial variance components of 137Cs concentration data were usually found to be larger than either the aliquoting or counting variance estimates and were inversely related to field sampling volume at the Trinity intensive site. Subsequent optimization studies of the sampling schemes demonstrated that each aliquot should be counted once, and that only 2-4 aliquots out of as many as 30 collected need be assayed for 137Cs. The optimization studies showed that as sample costs increased to 45 man-hours of labor per sample, the variance of the mean 137Cs concentration decreased dramatically, but decreased very little with additional labor.

  14. Effects of experimentally enhanced flows on fishes of a small Texas (U.S.A.) stream: Assessing the impact of interbasin transfer

    USGS Publications Warehouse

    Matthews, W.J.; Schorr, M.S.; Meador, M.R.

    1996-01-01

    1. Completion of a large interbasin water transfer system in northern Texas (U.S.A.) provided the opportunity to test the effects of pre-planned, experimental increases (??? ??30) in flow on the fish fauna of a small, low-gradient, natural stream that was included as part of the conveyance system. Water from Lake Texoma (Red River basin) was pumped via a 16-km pipeline to the headwaters of Sister Grove Creek (Trinity River basin), which then carried the donor water 50 km downstream to Lake Lavon. 2. Baseline (pre-transfer) data on the composition of fish assemblages at seven stations on the creek or at its confluence with the receiving reservoir were collected monthly for 3 years, and similar data were collected for 2 years during and after trial flows of Lake Texoma water to Sister Grove Creek. We also documented fish abundance at five creek stations immediately before and after three trial flow periods of 10-14 days each in summer and autumn. 3. Multivariate analysis of all routine monthly samples over the 5-year pre- and posttransfer period showed moderate changes in the fish fauna of the creek after initiation of the trial flows. Samples taken within a week before and after the artificial high flows showed little overall change in abundance of individual fish species, but at some stations the quantitative or qualitative change in composition of the local assemblage was substantial. 4. The trial flows lasted 2 weeks or less. Long-term effects of water transfer on the fish fauna of Sister Grove Creek can only be determined after the conveyance system goes into normal operation, with periods of artificial flow of longer duration.

  15. 75 FR 8745 - Notice of Intent To Prepare a Resource Management Plan Amendment and Associated Environmental...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-25

    ... of the Lower Clear Creek and Grass Valley Creek Areas of Critical Environmental Concern, Redding, CA...) and Grass Valley Creek (in eastern Trinity County) as Areas of Critical Environmental Concern (ACEC...

  16. On the Front Lines: Presidents Build Institutional Image.

    ERIC Educational Resources Information Center

    Justiz, Manuel J.; And Others

    1986-01-01

    The principles used by college presidents in enhancing their institutions' images are outlined and illustrated in profiles of the presidents' roles at the University of South Carolina, Trinity University, Tuskegee University, and the Community College of Philadelphia. (MSE)

  17. 75 FR 26942 - Sunshine Act Meeting Notice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-13

    ... Service, 9th Floor, Room 9802B, 1201 New York Avenue, NW., Washington, DC 20525. Phone (202) 606-6696. Fax (202) 606-3462. TDD: (202) 606-3472. E-mail: [email protected] . Dated: May 10, 2010. Frank R. Trinity...

  18. Trinity sure-II

    NASA Astrophysics Data System (ADS)

    Swartz, Clifford E.

    1998-11-01

    What could be simpler? Exert a force on a mass, and it accelerates. F=ma! You can work that formula into any number of problems about objects on inclined planes, or Atwood's machine, or blocks sliding along a surface with coefficient of friction, μ.

  19. 76 FR 13171 - Leaf River Energy Center LLC; Notice of Application

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-10

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. CP11-107-000] Leaf River Energy Center LLC; Notice of Application On February 25, 2011, Leaf River Energy Center LLC (Leaf River... Docket No. CP08-8-000 to authorize Leaf River to relocate and construct two of its certificated and not...

  20. Report for Flood Control and Allied Purposes, Whitewater River Basin, California.

    DTIC Science & Technology

    1978-06-01

    wildlife preservation . This authority has been combined with the outstanding authority for an investigation of the Whitewater River, Californi authorized...Epl. in Munz ( Lamiaceae ) Muilla clevelandii (S. Wats.) Hoover (Amaryllidaceae) Penstemon californicus (M. & J.) Keck (Scrophulariaceae) A&tragalus...Munz ( Lamiaceae ) 17 Proposed additions to rare and endangered or very are Celtis reticulata Tort. (Ulmaceae) Machaeranthera cognata (Hall) Cronq. & Keck

  1. 75 FR 13299 - Lower Colorado River Authority Transmission Services Corporation; Construction, Operation...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-19

    ...] Lower Colorado River Authority Transmission Services Corporation; Construction, Operation, Maintenance... activities associated with LCRA TSC's construction, maintenance, operation, and repair of four Competitive..., substation upgrades, and access roads) required to be constructed by the Public Utility Commission of Texas...

  2. Master Plan: Lake Barkley, Cumberland River, Kentucky - Tennessee.

    DTIC Science & Technology

    1983-01-01

    VASE 2 LOISVLLE7, DIXON GPM INGTAt PARK 28 PT. MA6AC STT PARR-*BCOLUMBUS BELMONT BATTLE ST PARK 10 REELFOOT LAKE STATV P-’ t ELYFREST STATE PAP, 01.6T...Plan: Lake garkley,Cumberland River, 3 Kentucky - Tennessee. Master Plan Update. 6. PERFORMING ORG. REPORT NUMBER 7- AUTHOR(s) 8. CONTRACT OR GRANT...block number) Lake Barkley, Kentucky. Interpretative programs. Cumberland River Recreation. Land Between the Lakes . Master Plan. 20. ABSTRACT (Continue

  3. 76 FR 57725 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-16

    .... Applicants: Black River Generation, LLC, ReEnergy Black River LLC. Description: Application for Authorization for Disposition of Jurisdictional Facilities and Request for Expedition and Certain Waivers of Black River Generation, LLC and ReEnergy Black River LLC. Filed Date: 09/07/2011. Accession Number: 20110907...

  4. 77 FR 60138 - Trinity Adaptive Management Working Group; Public Teleconference/Web-Based Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-02

    ... statements must be supplied to Elizabeth Hadley in one of the following formats: One hard copy with original... file formats are Adobe Acrobat PDF, MS Word, PowerPoint, or rich text file). Registered speakers who...

  5. 27 CFR 9.184 - Trinity Lakes.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... continue northwesterly along the contour line across Mule Creek and Snowslide Gulch in section 13, T35N/R9W; continue on the contour line, cross Little Mule Creek in section 18, T35N/R8W, and continue southeasterly...

  6. 27 CFR 9.184 - Trinity Lakes.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... continue northwesterly along the contour line across Mule Creek and Snowslide Gulch in section 13, T35N/R9W; continue on the contour line, cross Little Mule Creek in section 18, T35N/R8W, and continue southeasterly...

  7. 27 CFR 9.184 - Trinity Lakes.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... continue northwesterly along the contour line across Mule Creek and Snowslide Gulch in section 13, T35N/R9W; continue on the contour line, cross Little Mule Creek in section 18, T35N/R8W, and continue southeasterly...

  8. Timber resources of northern interior California, 1970.

    Treesearch

    Charles L. Bolsinger

    1976-01-01

    This report summarizes a timber resource inventory in Lassen, Modoc, Siskiyou, Shasta, and Trinity Counties, California. Included are detailed tables of forest area, timber volume, growth, mortality, and removals and a discussion of the current timber resource and timber industry situation.

  9. Clausewitz’s Trinity: Dead or Alive?

    DTIC Science & Technology

    2013-05-23

    Western and Japanese ideologies drastically affected the conduct of WWII in the Pacific Theater.104 The almost total dehumanization of the opponent served...racial indoctrination that influenced Allied forces’ perception of the nature of their enemy, exaggerating the effects of the dehumanization

  10. Trinity cable safety system.

    DOT National Transportation Integrated Search

    2007-01-31

    Cab1eSafety System (CASS).is being tested by the Oklahoma Department of Transportation (ODOT) along I-35 in McClain County. CASS will be compare with two other system approve by ODOT. Using C-shaped post tensioned cables, CASS is designed to...

  11. 77 FR 19278 - Leaf River Energy Center LLC; Notice of Application

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. CP12-91-000] Leaf River Energy Center LLC; Notice of Application On March 20, 2012, Leaf River Energy Center LLC (Leaf River), 53... Docket No. CP08-8-000 as amended in Docket No. CP11-107-000, to authorize Leaf River to reallocate the...

  12. Supplemental Environmental Assessment & Finding of No Significant Impact: Louisville Bend State Wildlife Area Fish and Wildlife Habitat Rehabilitation

    DTIC Science & Technology

    2013-05-01

    and Maintenance of the Missouri River Bank Stabilization and Navigation Project, and Operation of the Kansas River Reservoir System, and acquiring and...developing lands to produce habitat as directed by the BSNP Mitigation Project. The proposed project would be constructed under the authority of...the Mitigation Project. The Missouri River BSNP Mitigation Project of Missouri, Kansas , Iowa, and Nebraska was authorized by Section 601 (a) of the

  13. Sources of groundwater based on Helium analyses in and near the freshwater/saline-water transition zone of the San Antonio segment of the Edwards Aquifer, South-Central Texas, 2002-03

    USGS Publications Warehouse

    Hunt, Andrew G.; Lambert, Rebecca B.; Fahlquist, Lynne

    2010-01-01

    This report evaluates dissolved noble gas data, specifically helium-3 and helium-4, collected by the U.S. Geological Survey, in cooperation with the San Antonio Water System, during 2002-03. Helium analyses are used to provide insight into the sources of groundwater in the freshwater/saline-water transition zone of the San Antonio segment of the Edwards aquifer. Sixty-nine dissolved gas samples were collected from 19 monitoring wells (categorized as fresh, transitional, or saline on the basis of dissolved solids concentration in samples from the wells or from fluid-profile logging of the boreholes) arranged in five transects, with one exception, across the freshwater/saline-water interface (the 1,000-milligrams-per-liter dissolved solids concentration threshold) of the Edwards aquifer. The concentration of helium-4 (the dominant isotope in atmospheric and terrigenic helium) in samples ranged from 63 microcubic centimeters per kilogram at standard temperature (20 degrees Celsius) and pressure (1 atmosphere) in a well in the East Uvalde transect to 160,587 microcubic centimeters per kilogram at standard temperature and pressure in a well in the Kyle transect. Helium-4 concentrations in the 10 saline wells generally increase from the western transects to the eastern transects. Increasing helium-4 concentrations from southwest to northeast in the transition zone, indicating increasing residence time of groundwater from southwest to northeast, is consistent with the longstanding conceptualization of the Edwards aquifer in which water recharges in the southwest, flows generally northeasterly (including in the transition zone, although more slowly than in the fresh-water zone), and discharges at major springs in the northeast. Excess helium-4 was greater than 1,000 percent for 60 of the 69 samples, indicating that terrigenic helium is largely present and that most of the excess helium-4 comes from sources other than the atmosphere. The helium data of this report cannot be used to identify sources of groundwater in and near the transition zone of the Edwards aquifer in terms of specific geologic (stratigraphic) units or hydrogeologic units (aquifers or confining units). However, the data indicate that the source or sources of the helium, and thus the water in which the helium is dissolved, in the transition zone are mostly terrigenic in origin rather than atmospheric. Whether most helium in and near the transition zone of the Edwards aquifer originated either in rocks outside the transition zone and at depth or in the adjacent Trinity aquifer is uncertain; but most of the helium in the transition zone had to enter the transition zone from the Trinity aquifer because the Trinity aquifer is the hydrogeologic unit immediately beneath and laterally adjacent to the transition zone of the Edwards aquifer. Thus the helium data support a hypothesis of sufficient hydraulic connection between the Trinity and Edwards aquifers to allow movement of water from the Trinity aquifer to the transition zone of the Edwards aquifer.

  14. 33 CFR 162.105 - Missouri River; administration and navigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... on the river. (b) Navigation. During critical flood stages on any particular limited reach of the... District Commander in charge of the locality shall have the authority to declare the reach of the river...

  15. Sockets Manufactured by CAD/CAM Method Have Positive Effects on the Quality of Life of Patients With Transtibial Amputation.

    PubMed

    Karakoç, Mehmet; Batmaz, İbrahim; Sariyildiz, Mustafa Akif; Yazmalar, Levent; Aydin, Abdülkadir; Em, Serda

    2017-08-01

    Patients with amputation need prosthesis to comfortably move around. One of the most important parts of a good prosthesis is the socket. Currently, the most commonly used method is the traditional socket manufacturing method, which involves manual work; however, computer-aided design/computer-aided manufacturing (CAD/CAM) is also being used in the recent years. The present study aimed to investigate the effects of sockets manufactured by traditional and CAD/CAM method on clinical characteristics and quality of life of patients with transtibial amputation. The study included 72 patients with transtibial amputation using prosthesis, 36 of whom had CAD/CAM prosthetic sockets (group 1) and 36 had traditional prosthetic sockets (group 2). Amputation reason, prosthesis lifetime, walking time and distance with prosthesis, pain-free walking time with prosthesis, production time of the prosthesis, and adaptation time to the prosthesis were questioned. Quality of life was assessed using the 36-item Short Form Health Survey questionnaire and the Trinity Amputation and Prosthesis Experience Scales. Walking time and distance and pain-free walking time with prosthesis were significantly better in group 1 than those in group 2. Furthermore, the prosthesis was applied in a significantly shorter time, and socket adaptation time was significantly shorter in group 1. Except emotional role limitation, all 36-item Short Form Healthy Survey questionnaire parameters were significantly better in group 1 than in group 2. Trinity Amputation and Prosthesis Experience Scales activity limitation scores of group 1 were lower, and Trinity Amputation and Prosthesis Experience Scales satisfaction with the prosthesis scores were higher than those in group 2. Our study demonstrated that the sockets manufactured by CAD/CAM methods yield better outcomes in quality of life of patients with transtibial amputation than the sockets manufactured by the traditional method.

  16. Three-dimensional model of the hydrostratigraphy and structure of the area in and around the U.S. Army-Camp Stanley Storage Activity Area, northern Bexar County, Texas

    USGS Publications Warehouse

    Pantea, Michael P.; Blome, Charles D.; Clark, Allan K.

    2014-01-01

    A three-dimensional model of the Camp Stanley Storage Activity area defines and illustrates the surface and subsurface hydrostratigraphic architecture of the military base and adjacent areas to the south and west using EarthVision software. The Camp Stanley model contains 11 hydrostratigraphic units in descending order: 1 model layer representing the Edwards aquifer; 1 model layer representing the upper Trinity aquifer; 6 model layers representing the informal hydrostratigraphic units that make up the upper part of the middle Trinity aquifer; and 3 model layers representing each, the Bexar, Cow Creek, and the top of the Hammett of the lower part of the middle Trinity aquifer. The Camp Stanley three-dimensional model includes 14 fault structures that generally trend northeast/southwest. The top of Hammett hydrostratigraphic unit was used to propagate and validate all fault structures and to confirm most of the drill-hole data. Differences between modeled and previously mapped surface geology reflect interpretation of fault relations at depth, fault relations to hydrostratigraphic contacts, and surface digital elevation model simplification to fit the scale of the model. In addition, changes based on recently obtained drill-hole data and field reconnaissance done during the construction of the model. The three-dimensional modeling process revealed previously undetected horst and graben structures in the northeastern and southern parts of the study area. This is atypical, as most faults in the area are en echelon that step down southeasterly to the Gulf Coast. The graben structures may increase the potential for controlling or altering local groundwater flow.

  17. 36 CFR 7.89 - New River Gorge National River.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .... (ii) Comply with the hunting seasons, harvest limits, and any other conditions established by the... is allowed: (i) On park roads and in parking areas; and (ii) On administrative roads and trails authorized for bicycle use as listed in the following table. Administrative Roads and Trails Authorized for...

  18. 77 FR 59395 - Grand River Dam Authority; Notice of Revised Restricted Service List for a Programmatic Agreement

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-27

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2524-018--Oklahoma Salina Pumped Storage Project] Grand River Dam Authority; Notice of Revised Restricted Service List for a Programmatic Agreement Rule 2010 of the Federal Energy Regulatory Commission's (Commission) Rules of Practice...

  19. 77 FR 6534 - Malheur National Forest; Oregon; Summit Logan Grazing Authorization Project

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-08

    ... Creek and Summit Prairie allotments. These allotments are within the Upper Malheur River and Upper North Fork Malheur River watersheds. The Summit Logan Grazing Authorization Project area is located south and west of Prairie City, Oregon and encompasses approximately 40,272 acres of National Forest System Lands...

  20. California salmon and steelhead: Beyond the crossroads

    USGS Publications Warehouse

    Mills, Terry J.; McEwan, Dennis R.; Jennings, Mark R.; Stouder, Deanna J.; Bisson, Peter A.; Naiman, Robert J.

    1997-01-01

    Virtually all California salmon (Oncorhynchus spp.) and steelhead (O. mykiss) stocks have declined to record or near-record low levels during 1980-95. Escapement of naturally spawning Klamath and Sacramento basin fall-run chinook salmon (O. tshawytscha) stocks has fallen consistently below the goals of 35,000 adults (Klamath) and 120,000 adults (Sacramento) established by the Pacific Fishery Management Council. These two stocks constitute the primary management units for ocean harvest regulations in California and southern Oregon. This decline triggered a mandatory review of ocean harvest and inland production conditions in each basin. The Sacramento winter-run chinook salmon, once numbering >100,000 adult spawners, was listed as threatened in 1990 and endangered in 1994 under the Endangered Species Act. The listing occurred as a result of a precipitous decline in abundance (to <200 adult spawners) and significant threats to this stock’s continued existence.Spring-run chinook salmon, historically an abundant component of California’s inland fish fauna with >500,000 adult spawners, has been extirpated from the San Joaquin River basin. However, remnant populations of this naturally spawning stock remain within the Klamath, Smith, and Sacramento river basins. Unfortunately, annual counts of 3,000-25,000 spawners in the Sacramento River basin during the past 25 years are largely of hatchery origin. Recent steelhead data from the same region indicate that many stocks are close to extinction, and nearly all steel-head in the Sacramento River are also of hatchery origin. Both spring-run chinook salmon and summer steelhead are considered to be species of special concern by the California Department of Fish and Game because of their limited distributions and sensitivities to degraded habitat conditions. The southern race of winter steelhead south of Point Conception is nearly extinct and remnant populations have been recently recorded in only 9 streams.Coastal cutthroat trout (O. clarki), which are restricted to lowland drainages from the Eel River northward, are greatly depleted. Coho salmon (O. kisutch),which once probably numbered close to 1,000,000 fish per year in coastal California streams, have dwindled to —5,000 natural spawners per year. Chum salmon (O. keta), never a significant part of the state’s native fish fauna, are currently restricted to <10 spawners in three different streams in the Sacramento River basin and occasionally in the South Fork of the Trinity River. The historically small runs of pink salmon (O. gorbuscha) in the Sacramento and Russian rivers are probably now extirpated. Anadromous sockeye salmon (O. nerka) are only recorded as strays.In response to serious declines in salmon and steelhead stocks, numerous legislative and congressional actions have been undertaken and California has embarked on an ambitious planto restore riparian habitats, improve fish passage, and increase natural production. Additionally, many currently unlisted California salmon and steelhead stocks are potential candidates for protection under the Endangered Species Act. These include coho, chum, spring-run chinook, and San Joaquin fall-run chinook salmon, as well as summer steelhead and the southern race of winter steelhead.

  1. Significance Assessment of Site 16SC61, Luling Revetment, Mississippi River M-116.7-R

    DTIC Science & Technology

    1993-03-01

    16SC61, LULING REVETMENT , MISSISSIPPI RIVER M-1 16.7-R DTIC ELECTE Final Report AUG 0 4 1993 I_ March 1993A EARTH SEARCH, IN, . P.O. Box 850319 New...Classification) Significance Assessment of Site 16SC61, Luling Revetment , Mississippi River M-116.7-R 12. PERSONAL AUTHOR(S) Herschel A. Franks and...by block number) FIELD GROUP SUB-GROUP Archeology, historic archeology, sugar plantation,I Islave quarters, nineteenth century, St. Charles Parish

  2. An Investigation of Freshwater Mussels (Unionidae) in the Tennessee River below Kentucky Lock and Dam.

    DTIC Science & Technology

    1991-07-01

    Division of Water , Murray, KY. Sickel, J. B. 1987. "Survey of Freshwater Mussels in the Kentucky Dam Tailwater at the Site of the Proposed Reed...AN]ITECHNICAL REPORT EL-91-8 AN INVESTIGATION OF FRESHWATER MUSSELS (UNiONIDAE) IN THE TENNESSEE RIVER BELOW KENTUCKY LOCK AND DAM by ADA 24 0 265...SUBTITLE S. FUNDING NUMBERS An Investigation of Freshwater Mussels (Unionidae) in the Tennessee River Below Kentucky Lock and Dam 6. AUTHOR(S) Andrew C

  3. NPDES Permit for NRG Energy (Formerly GenOn Potomac River Generating Station)

    EPA Pesticide Factsheets

    Under National Pollutant Discharge Elimination System permit number DC0022004, NRG Energy (Formerly GenOn Potomac River Generating Station) is authorized to discharge from a facility into receiving waters named Potomac River.

  4. 25 CFR 162.503 - San Xavier and Salt River Pima-Maricopa Reservations.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false San Xavier and Salt River Pima-Maricopa Reservations. 162... AND PERMITS Special Requirements for Certain Reservations § 162.503 San Xavier and Salt River Pima... statutory authority for long-term leasing on the San Xavier and Salt River Pima-Maricopa Reservations...

  5. 25 CFR 162.603 - San Xavier and Salt River Pima-Maricopa Reservations.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false San Xavier and Salt River Pima-Maricopa Reservations. 162... AND PERMITS Special Requirements for Certain Reservations § 162.603 San Xavier and Salt River Pima... statutory authority for long-term leasing on the San Xavier and Salt River Pima-Maricopa Reservations...

  6. 25 CFR 162.503 - San Xavier and Salt River Pima-Maricopa Reservations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true San Xavier and Salt River Pima-Maricopa Reservations. 162... AND PERMITS Special Requirements for Certain Reservations § 162.503 San Xavier and Salt River Pima... statutory authority for long-term leasing on the San Xavier and Salt River Pima-Maricopa Reservations...

  7. 25 CFR 162.503 - San Xavier and Salt River Pima-Maricopa Reservations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false San Xavier and Salt River Pima-Maricopa Reservations. 162... AND PERMITS Special Requirements for Certain Reservations § 162.503 San Xavier and Salt River Pima... statutory authority for long-term leasing on the San Xavier and Salt River Pima-Maricopa Reservations...

  8. Human Rights in the Humanities

    ERIC Educational Resources Information Center

    Harpham, Geoffrey

    2012-01-01

    Human rights are rapidly entering the academic curriculum, with programs appearing all over the country--including at Duke, Harvard, Northeastern, and Stanford Universities; the Massachusetts Institute of Technology; the Universities of Chicago, of Connecticut, of California at Berkeley, and of Minnesota; and Trinity College. Most of these…

  9. Development of the trickle roof cooling and heating system: Experimental plan

    NASA Astrophysics Data System (ADS)

    Haves, P.; Jankovic, T.; Doderer, E.

    1982-07-01

    A passive system applicable both to retrofit and new construction was developed. This system (the trickle roof system) dissipates heat from a thin film of water flowing over the roof. A small scale trickle roof system dissipator was tested at Trinity University under a range of ambient conditions and operating configurations. The results suggest that trickle roof systems should have comparable performance to roof pond systems. Provided is a review of the trickle roof system concept, several possible configurations, and the benefits the systems can provide. Test module experiments And results are presented in detail. The requirements for full scale testing are discussed and a plan is outlined using the two identical residential scale passive test facility buildings at Trinity University, San Antonio, Texas. Full scale experimental results would be used to validate computer algorithms, provide system optimization, and produce a nationwide performance assessment and design guidelines. This would provide industry with the information necessary to determine the commerical potential of the trickle roof system.

  10. Geochemical consequences of flow differentiation in a multiple injection dike (Trinity ophiolite, N. California)

    USGS Publications Warehouse

    Brouxel, M.

    1991-01-01

    A clinopyroxene-rich dike of the Trinity ophiolite sheeted-dike complex shows three different magmatic pulses, probably injected in a short period of time (no well developed chilled margin) and important variations of the clinopyroxene and plagioclase percentages between its core (highly porphyritic) and margins (aphyric). This variation, interpreted as related to a flow differentiation phenomenon (mechanical phenocryst redistribution), has important geochemical consequences. It produces increases in the FeO, MgO, CaO, Cr and Ni contents from the margin to the core, together with increases in the clinopyroxene percentage, and decreases in the SiO2, Zr, Y, Nb and REE contents together with a decrease in the percentage of the fine-grained groundmass toward the core of the dike. This mineralogical redistribution, which also affects the incompatible trace element ratios because of the difference in plagioclase and clinopyroxene mineral/liquid partition coefficients, illustrate the importance of fractionation processes outside of a magma chamber. ?? 1991.

  11. River-aquifer interactions, geologic heterogeneity, and low-flow management

    USGS Publications Warehouse

    Fleckenstein, J.H.; Niswonger, R.G.; Fogg, G.E.

    2006-01-01

    Low river flows are commonly controlled by river-aquifer exchange, the magnitude of which is governed by hydraulic properties of both aquifer and aquitard materials beneath the river. Low flows are often important ecologically. Numerical simulations were used to assess how textural heterogeneity of an alluvial system influences river seepage and low flows. The Cosumnes River in California was used as a test case. Declining fall flows in the Cosumnes River have threatened Chinook salmon runs. A ground water-surface water model for the lower river basin was developed, which incorporates detailed geostatistical simulations of aquifer heterogeneity. Six different realizations of heterogeneity and a homogenous model were run for a 3-year period. Net annual seepage from the river was found to be similar among the models. However, spatial distribution of seepage along the channel, water table configuration and the level of local connection, and disconnection between the river and aquifer showed strong variations among the different heterogeneous models. Most importantly, the heterogeneous models suggest that river seepage losses can be reduced by local reconnections, even when the regional water table remains well below the riverbed. The percentage of river channel responsible for 50% of total river seepage ranged from 10% to 26% in the heterogeneous models as opposed to 23% in the homogeneous model. Differences in seepage between the models resulted in up to 13 d difference in the number of days the river was open for salmon migration during the critical fall months in one given year. Copyright ?? 2006 The Author(s).

  12. Hood River Production Master Plan.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    O'Toole, Patty

    1991-07-01

    The Northwest Power Planning Council's 1987 Columbia River Fish and Wildlife Program authorizes the development of artificial production facilities to raise chinook salmon and steelhead for enhancement in the Hood, Umatilla, Walla Walla, Grande Ronde and Imnaha rivers and elsewhere. On February 26, 1991 the Council agreed to disaggregate Hood River from the Northeast Oregon Hatchery Project, and instead, link the Hood River Master Plan (now the Hood River Production Plan) to the Pelton Ladder Project (Pelton Ladder Master Plan 1991).

  13. 78 FR 41057 - Sabine River Authority of Texas and Sabine River Authority, State of Louisiana; Public Meetings...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-09

    ... the Draft Environmental Impact Statement for the Toledo Bend Hydroelectric Project On May 17, 2013, the Commission issued a Draft Environmental Impact Statement (draft EIS) for the Toledo Bend Hydroelectric Project No 2105-036 (Toledo Bend Project). The draft EIS documents the views of governmental...

  14. 78 FR 37216 - Sabine River Authority of Texas and Sabine River Authority, State of Louisiana; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-20

    ... Environmental Impact Statement for the Toledo Bend Hydroelectric Project In accordance with the National... Office of Energy Projects has reviewed the application for license for the Toledo Bend Hydroelectric... the Toledo Bend Project. The draft EIS documents the views of governmental agencies, non- governmental...

  15. A Field Course Investigation of a Pembrokeshire River.

    ERIC Educational Resources Information Center

    Bailey, R. G.

    1978-01-01

    The river was investigated at six stations from source to estuary. Modifications of water quality and aquatic communities are related to man's activities in the river basin. The organization of the exercise and the method employed are described. (Author/BB)

  16. William E. Wilson and his contemporaries

    NASA Astrophysics Data System (ADS)

    Elliott, I.

    Although he never attended school or university, William E. Wilson FRS, of Daramona, County Westmeath, made pioneering contributions to solar physics, celestial photography and stellar photometry. His well-equipped observatory attracted collaborators who included George Francis FitzGerald of Trinity College Dublin and Arthur Rambaut of Dunsink Observatory.

  17. Careers and people

    NASA Astrophysics Data System (ADS)

    2013-01-01

    On his staff page of the Trinity College Dublin website, Michael Coey lists "champagne" as his favourite drink. At the end of 2012, the Belfast-born experimental physicist received an extra reason to raise a celebratory glass thanks to Science Foundation Ireland (SFI), which named him its Researcher of the Year.

  18. Commencement Address.

    ERIC Educational Resources Information Center

    Burch, Dean

    Trinity University and the Federal Communications Commission (FCC) share many of the same ground rules; tolerance for diversity, willingness to change, and a guaranteed opportunity for competition in the marketplace of goods, services, and ideas. But a Presidential commission hanging on an office wall is not a hunting license to shape the…

  19. Researching Group Assessment: Jazz in the Conservatoire

    ERIC Educational Resources Information Center

    Barratt, Elisabeth; Moore, Hilary

    2005-01-01

    This article presents the results of research into methods and scorings for jazz assessment in Trinity College of Music, London, focusing on the possibility of introducing group assessment. It considers the advantages of group assessment methods, contrasting these with the more traditional approach, firmly established in conservatoires, of…

  20. When the City Is Your Classroom

    ERIC Educational Resources Information Center

    Riggio, Milla Cozart; Sapolis, Lisa G.; Chen, Xiangming

    2011-01-01

    Students who attend Trinity College in Hartford, Connecticut, have elected to spend their university years in one of America's most distinguished small cosmopolitan cities. Over the last two decades as the world has become rapidly urbanized, Hartford has become a critically contested site where economic poverty, environmental degradation,…

  1. Does Your Technology Support Measure Up?

    ERIC Educational Resources Information Center

    Abramson, Paul

    1998-01-01

    Provides tips on ways to keep computer systems in colleges and universities from failing while also controlling costs. Trinity College (Hartford) is used to illustrate how proper staffing, system maintenance, hardware purchasing decisions, technician compensation, and the use of students for maintenance work can effectively support a school's…

  2. 40 CFR 49.22 - Federal implementation plan for Tri-Cities landfill, Salt River Pima-Maricopa Indian Community.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...-Cities landfill, Salt River Pima-Maricopa Indian Community. 49.22 Section 49.22 Protection of Environment... MANAGEMENT Tribal Authority § 49.22 Federal implementation plan for Tri-Cities landfill, Salt River Pima... construction of electricity-generating engines owned and operated by the Salt River Project at the Tri-Cities...

  3. 40 CFR 49.22 - Federal implementation plan for Tri-Cities landfill, Salt River Pima-Maricopa Indian Community.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...-Cities landfill, Salt River Pima-Maricopa Indian Community. 49.22 Section 49.22 Protection of Environment... Authority § 49.22 Federal implementation plan for Tri-Cities landfill, Salt River Pima-Maricopa Indian... River Project at the Tri-Cities landfill, which are fueled by collected landfill gas. Secondary...

  4. 78 FR 76604 - Grand River Dam Authority; Notice of Application Tendered for Filing With the Commission and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-18

    ... reservoir for the Grand River Dam Authority's Markham Ferry Project No. 2183, for pumped storage operations.... Holway Reservoir (the upper reservoir), with a normal pool elevation between 850 feet and 865 feet National Geodetic Vertical Datum; (2) three rim dikes around the upper reservoir; (3) an 1,800-foot-long...

  5. 78 FR 13618 - Shasta-Trinity National Forest; California; Elk Late-Successional Reserve Enhancement Project

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-28

    ... reduction would be completed using mechanical and hand methods and prescribed fire. Proposed road actions include maintenance and reconstruction of National Forest System roads, construction of temporary roads to complete project activities, and closure and decommissioning of National Forest System roads and existing...

  6. 75 FR 52057 - Office of Hazardous Materials Safety; Notice of Delays in Processing of Special Permits Applications

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-24

    ... Trinity 4 03-31-2011 Industries, Inc., Dallas, TX. 14835-N The Reusable 4 03-31-2011 Industrial Packaging... Air 4 03-31-2011 Group, Inc., Seattle, WA. 14868-N Wal-Mart Stores, 4 03-31-2011 Inc., Bentonville, AR...

  7. 36 CFR 30.3 - Recreation District I.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... or flashing device. Such signs may be placed only on the property on which the advertised use occurs, or on the property which is advertised for sale or rental. Signs shall be subdued in appearance... Whiskeytown-Shasta-Trinity National Recreation Area delineated as “Recreation District I” on a map bearing the...

  8. 36 CFR 30.3 - Recreation District I.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... or flashing device. Such signs may be placed only on the property on which the advertised use occurs, or on the property which is advertised for sale or rental. Signs shall be subdued in appearance... Whiskeytown-Shasta-Trinity National Recreation Area delineated as “Recreation District I” on a map bearing the...

  9. Training Teachers to be Professional Development Leaders.

    ERIC Educational Resources Information Center

    Leslie, Jessica B.

    1982-01-01

    A Teacher Corps project conducted by the Edgewood Independent School District and Trinity University (San Antonio, Texas) is described. A classroom teacher at each participating school is trained to lead professional development activities at his or her school. Teacher involvement in designing professional development at each school is emphasized.…

  10. Competitive Robotics Brings out the Best in Students

    ERIC Educational Resources Information Center

    Caron, Darrell

    2010-01-01

    This article features Advanced Competitive Science (ACS), a two-year course introduced by a science teacher, Joe Pouliot, in 2004 at Trinity High School in Manchester, New Hampshire. More than a traditional STEM (science, technology, engineering, and math) course, ACS harnesses the excitement of robotics competitions to promote student…

  11. Motherlove is a Killer: "Sula,""Beloved," and the Deadly Trinity of Motherlove.

    ERIC Educational Resources Information Center

    Delancey, Dayle B.

    1990-01-01

    Explores the view of motherhood and the concept of mother love as a killer in Toni Morrison's novels "Sula" (1973) and "Beloved" (1987). The triple nature of mother love as destructive materially, emotionally, and literally is examined in the context of African-American women's struggles. (SLD)

  12. A resolution congratulating the Trinity College Bantams for their 11th-straight College Squash Association Men's Team Championship.

    THOMAS, 111th Congress

    Sen. Lieberman, Joseph I. [ID-CT

    2009-04-29

    Senate - 04/29/2009 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (All Actions) Tracker: This bill has the status Agreed to in SenateHere are the steps for Status of Legislation:

  13. Robot Contest as a Laboratory for Experiential Engineering Education

    ERIC Educational Resources Information Center

    Verner, Igor M.; Ahlgren, David J.

    2004-01-01

    By designing, building, and operating autonomous robots students learn key engineering subjects and develop systems-thinking, problem-solving, and teamwork skills. Such events as the Trinity College Fire-Fighting Home Robot Contest (TCFFHRC) offer rich opportunities for students to apply their skills by requiring design, and implementation of…

  14. Reexamining Our Approach to College Access

    ERIC Educational Resources Information Center

    Pérez, Angel B.

    2017-01-01

    In this article Trinity College vice president for enrollment and student success, Angel Pérez addresses the nation's inability to offer consistent college preparation, academic rigor and counseling across varying socioeconomic communities. Research has highlighted the fact that standardized tests do more to keep low-income students out of top…

  15. 75 FR 8486 - Regulated Navigation Area; Hudson River south of the Troy Locks, New York

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-25

    ...-AA11 Regulated Navigation Area; Hudson River south of the Troy Locks, New York AGENCY: Coast Guard, DHS... area on the navigable waters of the Hudson River south of the Troy Locks. This regulated navigation... Hudson River south of the Troy locks when ice conditions are 8 inches or greater unless authorized by the...

  16. Surficial sediment character of the Louisiana offshore continental shelf region: a GIS compilation

    USGS Publications Warehouse

    Williams, S. Jeffress; Arsenault, Matthew A.; Buczkowski, Brian J.; Reid, Jane A.; Flocks, James; Kulp, Mark A.; Penland, Shea; Jenkins, Chris J.

    2007-01-01

    The Louisiana coastal zone, comprising the Mississippi River delta plain stretching nearly 400 km from Sabine Pass at the Texas border east to the Chandeleur Islands at the Mississippi border, represents one of North America’s most important coastal ecosystems in terms of natural resources, human infrastructure, and cultural heritage. At the same time, this region has the highest rates of coastal erosion and wetland loss in the Nation due to a complex combination of natural processes and anthropogenic actions over the past century. Comparison of historical maps dating back to 1855 and recent aerial photography show the Louisiana coast undergoing net erosion at highly variable rates. Rates have increased significantly during the past several decades. Earlier published statewide average shoreline erosion rates were >6 m/yr; rates have increased recently to >10 m/yr. The increase is attributable to collective action of storms, rapid subsidence, and pervasive man-made alterations of the rivers and the coast. In response to the dramatic landloss, regional-scale restoration plans are being developed by a partnership of federal and state agencies for the delta plain that have the objectives of maintaining the barrier islands, reducing wetland loss, and enhancing the natural sediment delivery processes. There is growing awareness that the sustainability of coastal Louisiana's natural resources and human infrastructure depends on the successful restoration of natural geologic processes. Critical to the long term success of restoration is scientific understanding of the geologic history and processes of the coastal zone region, including interactions between the rivers, wetlands, coast, and inner shelf. A variety of geophysical studies and mapping of Late Quaternary sedimentary framework and coastal processes by U.S. Geological Survey and other scientists during the past 50 years document that the Louisiana delta plain is the product of a complex history of cyclic delta switching by the Mississippi River and its distributaries over the past ~10,000 years that resulted in laterally overlapping deltaic depocenters. The interactions among riverine, coastal, and inner shelf processes have been superimposed on the Holocene transgression resulting in distinctive landforms and sedimentary sequences. Four Holocene shelf-phase delta complexes have been identified using seismic reflection data and vibracores. Each delta complex is bounded by transgressive surfaces. Following each cycle of deposition and abandonment, the delta lobes undergo regional subsidence and marine reworking that forms transgressive coastal systems and barrier islands. Ultimately, the distal end of each of the abandoned delta lobes is marked by submerged marine sand bodies representing drowned barriers. These sand bodies (e.g. Ship Shoal, Outer Shoal, Trinity Shoal, Tiger Shoal, St. Bernard Shoal) offer the largest volumes and highest quality sand for beach nourishment and shoreline and wetlands restoration. These four large sand shoals on inner continental shelf, representing the reworked remnants of former prograded deltaic headlands that existed on the continental shelf at lower sea level, were generated in the retreat path of the Mississippi River delta plain during the Holocene transgression. Penland and others (1989) have shown these sand bodies represent former shoreline positions associated with lower still stands in sea level. Short periods of rapid relative sea-level rise led to the transgressive submergence of the shorelines which today can be recognized at the -10 m to -20 m isobaths on the Louisiana continental shelf. Trinity Shoal and Ship Shoal represent the -10 m middle-to-late Holocene shoreline trend, whereas Outer Shoal and the St. Bernard Shoals define the -20 m early Holocene shoreline trend (Penland and others, 1989). Collectively, these sand shoals constitute a large volume of high quality sandy sediment potentially suitable for barrier island nourishment and coastal restoration. The USGS has actively supported coastal and wetlands geologic research for the past two decades in partnership with universities (e.g., Louisiana State University, University of New Orleans), state agencies (e.g. Louisiana Geological Survey, Louisiana Department of Natural Resources), and private organizations (Williams and others, 1992a,b; Williams and Cichon, 1993; List and others, 1994). These studies have focused on regional-scale mapping of coastal and wetland change and developing a better understanding of the processes that cause coastal erosion and wetlands loss, particularly the rapid deterioration of Louisiana's barrier islands, estuaries, and wetlands environments. With a better understanding of these processes, the ability to model and predict erosion and wetlands loss will improve. More accurate predictions will, in turn, allow for proper management of coastal resources. Improved predictions will also allow for better assessments of the utility of different restoration alternatives.

  17. ERTS data user investigation to develop a multistage forest sampling inventory system

    NASA Technical Reports Server (NTRS)

    Langley, P. G.; Vanroessel, J. W. (Principal Investigator)

    1973-01-01

    The author has identified the following significant results. A unique digital timber volume estimation system was developed for use with the MSS CCT tapes. The system was tested on a 64-square mile area in Northern California's Trinity Alps. The outcome of a systematic experiment, in which several possible combinations of bands 5 and 7 and a contrast measure were tried, showed that an estimated gain in precision of 50% can be obtained in a multistage sampling design. The difference between bands 5 and 7 proved to be of special importance for the estimation of biomass in the form of timber volume. In addition, an interpretation model for high flight U2 photographs was developed. A maximum multiple correlation coefficient of 0.74 was obtained for the regression model, explaining 55% of the variation in timber volume as estimated from aerial photos and ground measurments. An interpretation model for MSS color composites is in the testing stage.

  18. Paleohydrological methods and some examples from Swedish fluvial environments. II - River meanders.

    USGS Publications Warehouse

    Williams, G.P.

    1984-01-01

    Empirical relations are developed between river-meander features and water-discharge characteristics for 19 reaches along Swedish rivers. In these relations, either average channel width or average radius of curvature of meander arcs can be used to estimate average annual peak discharge and average daily discharge. By accepting certain assumptions, the relations can be applied to other meandering Swedish rivers, present or ancient. The Oster-Dalalven River near Mora is used as an example.-Author

  19. Wild, scenic, and transcendental rivers

    NASA Astrophysics Data System (ADS)

    Showstack, Randy

    “A more lovely stream than this has never flowed on Earth,” 19th century American author Nathaniel Hawthorne wrote about the confluence of the Assabet and Concord Rivers, streams that meander about 40 km west of Boston, Massachusetts.Segments of these streams as well as the Assabet River became the newest additions to the U.S. National Wild and Scenic Rivers System, when President Bill Clinton signed into law the “Sudbury, Assabet, and Concord Wild and Scenic River Act” on April 9.

  20. Over Ten Million Served: Gendered Service in Language and Literature Workplaces

    ERIC Educational Resources Information Center

    Masse, Michelle A., Ed.; Hogan, Katie J., Ed.

    2010-01-01

    All tenured and tenure-track faculty know the trinity of promotion and tenure criteria: research, teaching, and service. While teaching and research are relatively well-defined areas of institutional focus and evaluation, service work is rarely tabulated or analyzed as a key aspect of higher education's political economy. Instead, service, silent…

  1. 76 FR 77578 - In the Matter of: Brendan Technologies, Inc., CenterStaging Corp., PGMI, Inc., Thermal Energy...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-13

    ... SECURITIES AND EXCHANGE COMMISSION [File No. 500-1] In the Matter of: Brendan Technologies, Inc., CenterStaging Corp., PGMI, Inc., Thermal Energy Storage, Inc., and Trinity3 Corporation; Order of... there is a lack of current and accurate information concerning the securities of Thermal Energy Storage...

  2. The drop heard round the world

    NASA Astrophysics Data System (ADS)

    Bergin, Shane D.; Hutzler, Stefan; Weaire

    2014-05-01

    When physicists at Trinity College Dublin began looking after an antique funnel full of pitch, they had no idea their humble experiment would spawn one of 2013's most “viral” news stories. Shane D Bergin, Stefan Hutzler and Denis Weaire reflect on the value of “slow science” to a hyper-connected, social-media world.

  3. Fixing a Fatal Flaw in "U.S. News" Rankings

    ERIC Educational Resources Information Center

    Manion, Andrew P.

    2007-01-01

    The closure of Barat College's operations in 2004 is similar to the accounts of other small, tuition-driven institutions such as Ambassador University, Bradford College, Marymount College, and Trinity College of Vermont. All institutions were small and in tight financial positions, and all ended up closing their doors. They also shared another…

  4. Final Review of FY17 ASC CSSE L2 Milestone #6018 entitled "Analyzing Power Usage Characteristics of Workloads Running on Trinity".

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hoekstra, Robert J.; Hammond, Simon David; Hemmert, Karl Scott

    The presentation documented the technical approach of the team and summary of the results with sufficient detail to demonstrate both the value and the completion of the milestone. A separate SAND report was also generated with more detail to supplement the presentation.

  5. 29 CFR 4.11 - Arm's length proceedings.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Act. See Trinity Services, Inc. v. Marshall, 593 F.2d 1250 (D.C. Cir. 1978). A finding as to whether a...)(3)(ii) of this section where the Administrator determines that material facts are in dispute, shall... that no material facts are in dispute, the Administrator shall refer the issue and the record compiled...

  6. 29 CFR 4.11 - Arm's length proceedings.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Act. See Trinity Services, Inc. v. Marshall, 593 F.2d 1250 (D.C. Cir. 1978). A finding as to whether a...)(3)(ii) of this section where the Administrator determines that material facts are in dispute, shall... that no material facts are in dispute, the Administrator shall refer the issue and the record compiled...

  7. 29 CFR 4.11 - Arm's length proceedings.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Act. See Trinity Services, Inc. v. Marshall, 593 F.2d 1250 (D.C. Cir. 1978). A finding as to whether a...)(3)(ii) of this section where the Administrator determines that material facts are in dispute, shall... that no material facts are in dispute, the Administrator shall refer the issue and the record compiled...

  8. 29 CFR 4.11 - Arm's length proceedings.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Act. See Trinity Services, Inc. v. Marshall, 593 F.2d 1250 (D.C. Cir. 1978). A finding as to whether a...)(3)(ii) of this section where the Administrator determines that material facts are in dispute, shall... that no material facts are in dispute, the Administrator shall refer the issue and the record compiled...

  9. 29 CFR 4.11 - Arm's length proceedings.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Act. See Trinity Services, Inc. v. Marshall, 593 F.2d 1250 (D.C. Cir. 1978). A finding as to whether a...)(3)(ii) of this section where the Administrator determines that material facts are in dispute, shall... that no material facts are in dispute, the Administrator shall refer the issue and the record compiled...

  10. 77 FR 53839 - Shasta-Trinity National Forest; California; East McCloud Plantations Thinning Project

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-04

    ... actions include road maintenance and reconstruction of National Forest System, new road construction and addition of new roads and selected existing unauthorized routes to the Forest Transportation System to.... The project's legal description is: Portions of Township (T.) 39 North (N.), Range (R.) 1-3 East (E...

  11. To Be a Teacher: Voices from the Classroom.

    ERIC Educational Resources Information Center

    Henry, Eric; And Others

    This volume contains personal reflections by four teachers in Texas on their year-long Trinity University intern teaching experience at Mark Twain Middle School, an urban professional development school in San Antonio. Part 1 by Corinne McKamey, "To understand teaching you have to be there, engrossed in the human interactions," is a…

  12. Build Your Own Particle Smasher: The Royal Society Partnership Grants Scheme

    ERIC Educational Resources Information Center

    Education in Science, 2012

    2012-01-01

    This article features the project, "Build Your Own Particle Smasher" and shares how to build a particle smasher project. A-level and AS-level students from Trinity Catholic School have built their own particle smashers, in collaboration with Nottingham Trent University, as part of The Royal Society's Partnership Grants Scheme. The…

  13. Deer habitat use after prescribed burning in Northern California

    Treesearch

    John G. Kie

    1984-01-01

    Prescribed burning was used to improve blacktailed deer (Odocoileus hemionus columbianus) habitat in Trinity County, northern California. Deer response was measured by comparing pellet group deposition on one burned and three unburned areas. Pellet group counts were highest on the burned area for 3 years after burning. One year after burning, pellet...

  14. Lecturer Responses to the Inclusion of Students with Intellectual Disabilities Auditing Undergraduate Classes

    ERIC Educational Resources Information Center

    O'Connor, Barrie; Kubiak, John; Espiner, Deborah; O'Brien, Patricia

    2012-01-01

    Although postsecondary education for people with intellectual disabilities can improve their chances of employment and create a more satisfying life, higher education is becoming a more usual avenue of postschool learning. As part of a 2-year Certificate in Contemporary Living (CCL) Program offered at Trinity College Dublin, students audited…

  15. Visions and Values in Catholic Higher Education.

    ERIC Educational Resources Information Center

    Murphy, J. Patrick

    This book offers a model of value sharing in organizations concerned with Catholic higher education and backs it up with statistics and narrative. It summarizes the core values of five Catholic colleges and universities (Barry University, Trinity College, Saint Mary-of-the-Woods College, Santa Clara University, DePaul University) as found in the…

  16. The Postsecondary Resource Trinity Model: Exploring the Interaction between Socioeconomic, Academic, and Institutional Resources

    ERIC Educational Resources Information Center

    Giani, Matt S.

    2015-01-01

    The purpose of this study is to revisit the widely held assumption that the impact of socioeconomic background declines steadily across educational transitions, particularly at the postsecondary level. Sequential logit modeling, a staple methodological approach for estimating the relative impact of SES across educational stages, is applied to a…

  17. Emerging Trends and New Directions in Telecollaborative Learning

    ERIC Educational Resources Information Center

    O'Dowd, Robert

    2016-01-01

    This article provides an overview of the most significant emerging trends and tendencies in telecollaborative practice. In order to achieve this, I review the recent literature in the area and I identify recurring themes from the Telecollaboration in Higher Education conference which took place in Trinity College Dublin, Ireland from 21 to 23…

  18. Learner Autonomy and Telecollaborative Language Learning

    ERIC Educational Resources Information Center

    Little, David

    2016-01-01

    When I was invited to give one of the keynote talks at the Second International Conference on Telecollaboration in Higher Education, my first thought was that I should decline. It is true that for thirty years I was responsible for Trinity College Dublin's self-access language learning facilities and resources; true also that around the turn of…

  19. 75 FR 45161 - Notice of Determinations Regarding Eligibility To Apply for Worker Adjustment Assistance

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-02

    ... Site at Trinity North American Freight Car. 74,189 Agilent Technologies, Inc., Liberty Lake, WA...Car America, Inc., Johnstown, PA......... November 6, 2008. Administrative Office. 73,213 Johnson... Burlington, NC........ March 17, 2009. Services, A Division of Burlington Technologies. 73,791A Se7en, A...

  20. On the Merits of "Unusual Field Trips."

    ERIC Educational Resources Information Center

    Howarth, Dean E.

    1999-01-01

    Describes the organization and completion of a scientific field trip for a group of high school physics students that was organized primarily around a study of the Manhattan Project. The group visited the Trinity site, Los Alamos, several museums, and the National Radio Astronomy Observatory Very Large Array. Contact information for the various…

  1. The Use of Computer Networks in Data Gathering and Data Analysis.

    ERIC Educational Resources Information Center

    Yost, Michael; Bremner, Fred

    This document describes the review, analysis, and decision-making process that Trinity University, Texas, went through to develop the three-part computer network that they use to gather and analyze EEG (electroencephalography) and EKG (electrocardiogram) data. The data are gathered in the laboratory on a PDP-1124, an analog minicomputer. Once…

  2. Dr. Faustus: Theist or Atheist?

    ERIC Educational Resources Information Center

    Karim, Shah Mohammad Sanaul; Fathema, Fawzia; Hakim, Abdul

    2015-01-01

    Dr. Faustus is the greatest but the most controversial of Marlowe's plays. Among the causes of controversy, whether Dr. Faustus is an atheist or theist deserves utmost attention. This paper is intended to deal with the issue. Though at various stages of the development of the action, Dr. Faustus abjures Trinity, resorts to necromancy, becomes…

  3. Northwest California oak woodlands: environment, species composition, and ecological status

    Treesearch

    Thomas M. Jimerson; Sydney K. Carothers

    2002-01-01

    This paper describes the oak woodland plant communities of Northwest California and their ecological status using data from 446 ecology plots collected on federal lands in Humboldt, Trinity, Siskiyou, Mendocino, Tehama, Glenn, Colusa and Lake Counties. Geographically, oak woodlands lie between the coastal mixed evergreen forests and the valley grasslands of the Central...

  4. Organizational Issues Involved in the Development and Operation of Farm Informational Systems for Modernizing Agriculture.

    ERIC Educational Resources Information Center

    Lionberger, Herbert F.

    The need for an information development system for farmers is discussed in this paper. Issues and alternatives are described in terms of the research-extension-teaching trinity, extension services, role combinations, specialist advisor issues, innovations, research orientation, reward structures, and information services. Information gathered in…

  5. Tracking Radionuclide Fractionation in the First Atomic Explosion Using Stable Elements

    DOE PAGES

    Bonamici, Chloë E.; Hervig, Richard L.; Kinman, William S.

    2017-08-25

    Compositional analysis of postdetonation fallout is a tool for forensic identification of nuclear devices. However, the relationship between device composition and fallout composition is difficult to interpret because of the complex combination of physical mixing, nuclear reactions, and chemical fractionations that occur in the chaotic nuclear fireball. By using a combination of in situ microanalytical techniques (electron microprobe analysis and secondary ion mass spectrometry), we show that some heavy stable elements (Rb, Sr, Zr, Ba, Cs, Ba, La, Ce, Nd, Sm, Dy, Lu, U, Th) in glassy fallout from the first nuclear test, Trinity, are reliable chemical proxies for radionuclidesmore » generated during the explosion. Stable-element proxies show that radionuclides from the Trinity device were chemically, but not isotopically, fractionated by condensation. Moreover, stable-element proxies delineate chemical fractionation trends that can be used to connect present-day fallout composition to past fireball composition. Stable-element proxies therefore offer a novel approach for elucidating the phenomenology of the nuclear fireball as it relates to the formation of debris and the fixation of device materials within debris.« less

  6. The Inglorious Death of Jumbo

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Meade, Roger Allen

    In the summer of 1944, J. Robert Oppenheimer and Los Alamos faced a crisis. An isotopic impurity in Plutonium rendered the metal unusable in a gun-assembled atomic bomb (i.e., Little Boy). Making this situation worse was a shortage of Uranium. The combination of these two problems threatened the entire wartime project. The answer to this dilemma, in part, was to develop a novel assembly method for Plutonium using the supersonic shock waves created by several tons of high explosives to compress a ball of Plutonium into a supercritical state. Since this method, implosion, was not much more than a theoreticalmore » construct, the Trinity test was devised to proof test the process. Given the speculative nature of implosion, Trinity was a gamble of sorts. If the test failed (i.e., little or no nuclear yield), the blast of the high explosives would scatter the scarce and expensive Plutonium over the surrounding desert. Since the probability of failure remained high into the early summer of 1945, some method of containing a failed nuclear explosion was needed. Jumbo was the answer.« less

  7. Tracking Radionuclide Fractionation in the First Atomic Explosion Using Stable Elements

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Bonamici, Chloë E.; Hervig, Richard L.; Kinman, William S.

    Compositional analysis of postdetonation fallout is a tool for forensic identification of nuclear devices. However, the relationship between device composition and fallout composition is difficult to interpret because of the complex combination of physical mixing, nuclear reactions, and chemical fractionations that occur in the chaotic nuclear fireball. By using a combination of in situ microanalytical techniques (electron microprobe analysis and secondary ion mass spectrometry), we show that some heavy stable elements (Rb, Sr, Zr, Ba, Cs, Ba, La, Ce, Nd, Sm, Dy, Lu, U, Th) in glassy fallout from the first nuclear test, Trinity, are reliable chemical proxies for radionuclidesmore » generated during the explosion. Stable-element proxies show that radionuclides from the Trinity device were chemically, but not isotopically, fractionated by condensation. Moreover, stable-element proxies delineate chemical fractionation trends that can be used to connect present-day fallout composition to past fireball composition. Stable-element proxies therefore offer a novel approach for elucidating the phenomenology of the nuclear fireball as it relates to the formation of debris and the fixation of device materials within debris.« less

  8. Seasonal Thermal Dynamics of Three High Elevation Lakes in the Trinity Alps Wilderness, California

    NASA Astrophysics Data System (ADS)

    Barnes, J. M.; Huggett, B. W.

    2012-12-01

    High elevation lakes experience isothermal equilibrium, often called turnover, twice a year: preceding the onset of winter ice cover and following the melt of spring ice cover. The dynamics and evolution of the thermal regime are a function of meteorological forcings (air temperature, wind speed), climate (variable onset of winter and spring), and topographic constraints (access to direct insolation). We have deployed numerous water and air temperature sensors in Emerald, Sapphire and Echo lakes in the Trinity Alps Wilderness of northern California over two hydrologic years in an attempt to determine the onset of turnover events, the duration of turnover and the ice-free season, and to characterize the evolution of the thermocline and its stability over time. Our findings detail thermocline structures in all lakes that vary on hourly to weekly timescales. We also report on our techniques to develop bathymetric maps for each lake and how the use of off-the-shelf technologies and robust GIS analysis can allow the collection of heretofore uncollected baseline data for remote, mountainous regions.

  9. Performance of the CareStart Glucose-6-Phosphate Dehydrogenase (G6PD) Rapid Diagnostic Test in Gressier, Haiti

    PubMed Central

    von Fricken, Michael E.; Weppelmann, Thomas A.; Eaton, Will T.; Masse, Roseline; Beau de Rochars, Madsen V. E.; Okech, Bernard A.

    2014-01-01

    Administering primaquine (PQ) to treat malaria patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency can pose a serious risk of drug-induced hemolysis (DIH). New easy to use point-of-care rapid diagnostic tests are being developed as an alternative to labor-intensive spectrophotometric methods, but they require field testing before they can be used at scale. This study screened 456 participants in Gressier, Haiti using the Access Bio CareStart qualitative G6PD rapid detection test compared with the laboratory-based Trinity Biotech quantitative spectrophotometric assay. Findings suggest that the CareStart test was 90% sensitive for detecting individuals with severe deficiency and 84.8% sensitive for detecting individuals with moderate and severe deficiency compared with the Trinity Biotech assay. A high negative predictive value of 98.2% indicates excellent performance in determining those patients able to take PQ safely. The CareStart G6PD test holds much value for screening malaria patients to determine eligibility for PQ therapy. PMID:24778197

  10. Tracking Radionuclide Fractionation in the First Atomic Explosion Using Stable Elements.

    PubMed

    Bonamici, Chloë E; Hervig, Richard L; Kinman, William S

    2017-09-19

    Compositional analysis of postdetonation fallout is a tool for forensic identification of nuclear devices. However, the relationship between device composition and fallout composition is difficult to interpret because of the complex combination of physical mixing, nuclear reactions, and chemical fractionations that occur in the chaotic nuclear fireball. Using a combination of in situ microanalytical techniques (electron microprobe analysis and secondary ion mass spectrometry), we show that some heavy stable elements (Rb, Sr, Zr, Ba, Cs, Ba, La, Ce, Nd, Sm, Dy, Lu, U, Th) in glassy fallout from the first nuclear test, Trinity, are reliable chemical proxies for radionuclides generated during the explosion. Stable-element proxies show that radionuclides from the Trinity device were chemically, but not isotopically, fractionated by condensation. Furthermore, stable-element proxies delineate chemical fractionation trends that can be used to connect present-day fallout composition to past fireball composition. Stable-element proxies therefore offer a novel approach for elucidating the phenomenology of the nuclear fireball as it relates to the formation of debris and the fixation of device materials within debris.

  11. Performance of the CareStart glucose-6-phosphate dehydrogenase (G6PD) rapid diagnostic test in Gressier, Haiti.

    PubMed

    von Fricken, Michael E; Weppelmann, Thomas A; Eaton, Will T; Masse, Roseline; Beau de Rochars, Madsen V E; Okech, Bernard A

    2014-07-01

    Administering primaquine (PQ) to treat malaria patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency can pose a serious risk of drug-induced hemolysis (DIH). New easy to use point-of-care rapid diagnostic tests are being developed as an alternative to labor-intensive spectrophotometric methods, but they require field testing before they can be used at scale. This study screened 456 participants in Gressier, Haiti using the Access Bio CareStart qualitative G6PD rapid detection test compared with the laboratory-based Trinity Biotech quantitative spectrophotometric assay. Findings suggest that the CareStart test was 90% sensitive for detecting individuals with severe deficiency and 84.8% sensitive for detecting individuals with moderate and severe deficiency compared with the Trinity Biotech assay. A high negative predictive value of 98.2% indicates excellent performance in determining those patients able to take PQ safely. The CareStart G6PD test holds much value for screening malaria patients to determine eligibility for PQ therapy. © The American Society of Tropical Medicine and Hygiene.

  12. 77 FR 53884 - North Sky River Energy, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-04

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER12-2444-000] North Sky River Energy, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for... North Sky River Energy, LLC's application for market-based rate authority, with an accompanying rate...

  13. Hudson River School

    ERIC Educational Resources Information Center

    McCloskey, Patrick J.

    2004-01-01

    In this article, the author features the "Clearwater," a full-size working replica of a 19th century Hudson River cargo sloop. The "Clearwater" has been serving New York state students as a link to both local history and the environment, helping them to learn lessons about the history of the Hudson River and the environment,…

  14. 78 FR 5176 - CED White River Solar, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-24

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER13-764-000] CED White River Solar, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for Blanket... River Solar, LLC's application for market-based rate authority, with an accompanying rate schedule...

  15. US Airways Flight 1549 Hudson river crash: the New Jersey experience.

    PubMed

    Merlin, Mark A; Bucher, Joshua; Cortacans, Henry P

    2009-01-01

    The authors review the preparation, implementation, and management of the US Airways Flight 1549 Hudson River crash. This is a review of the experience of NJ. The state planning that created the ability to execute the treatment of patients from time of impact in the river until debriefing is reviewed.

  16. How great a thirst? Assembling a river restoration toolkit

    Treesearch

    Steve Harris

    1999-01-01

    The Rio Grande River's biologically troubled status is clearly linked to present and historic water management. To restore the river to pre-settlement conditions will take a "tool kit" that holds authorities, knowledge, and skills needed to correct historical neglect and abuse. Tools include awareness, planning, partnerships, engineering solutions, and a...

  17. Geologic framework and hydrogeologic characteristics of the Glen Rose limestone, Camp Stanley Storage Activity, Bexar County, Texas

    USGS Publications Warehouse

    Clark, Allan K.

    2004-01-01

    The Trinity aquifer is a regional water source in the Hill Country of south-central Texas that supplies water for agriculture, commercial, domestic, and stock purposes. Rocks of the Glen Rose Limestone, which compose the upper zone and upper part of the middle zone of the Trinity aquifer, crop out at the Camp Stanley Storage Activity (CSSA), a U.S. Army weapons and munitions supply, maintenance, and storage facility in northern Bexar County (San Antonio area) (fig. 1). On its northeastern, eastern, and southern boundaries, the CSSA abuts the Camp Bullis Training Site, a U.S. Army field training site for military and Federal government agencies. During 2003, the U.S. Geological Survey (USGS), in cooperation with the U.S. Army, studied the outcropping Glen Rose Limestone at the CSSA and immediately adjacent area (Camp Stanley study area, fig. 1) to identify and map the hydrogeologic subdivisions and faults of the Glen Rose Limestone at the facility. The results of the study are intended to help resource managers improve their understanding of the distribution of porosity and permeability of the outcropping rocks, and thus the conditions for recharge and the potential for contaminants to enter the Glen Rose Limestone. This study followed a similar study done by the USGS at Camp Bullis (Clark, 2003). The purpose of this report is to present the geologic framework and hydrogeologic characteristics of the Glen Rose Limestone in the study area. The hydrogeologic nomenclature follows that introduced by Clark (2003) for the outcropping Glen Rose Limestone at Camp Bullis in which the upper member of the Glen Rose Limestone (hereinafter, upper Glen Rose Limestone), which is coincident with the upper zone of the Trinity aquifer, is divided into five intervals on the basis of observed lithologic and hydrogeologic properties. An outcrop map, two generalized sections, related illustrations, and a table summarize the description of the framework and distribution of characteristics.

  18. Paleocene coal deposits of the Wilcox group, central Texas

    USGS Publications Warehouse

    Hook, Robert W.; Warwick, Peter D.; SanFilipo, John R.; Schultz, Adam C.; Nichols, Douglas J.; Swanson, Sharon M.; Warwick, Peter D.; Karlsen, Alexander K.; Merrill, Matthew D.; Valentine, Brett J.

    2011-01-01

    Coal deposits in the Wilcox Group of central Texas have been regarded as the richest coal resources in the Gulf Coastal Plain. Although minable coal beds appear to be less numerous and generally higher in sulfur content (1 percent average, as-received basis; table 1) than Wilcox coal deposits in the Northeast Texas and Louisiana Sabine assessment areas (0.5 and 0.6 percent sulfur, respectively; table 1), net coal thickness in coal zones in central Texas is up to 32 ft thick and more persistent along strike (up to 15 mi) at or near the surface than coals of any other Gulf Coast assessment area. The rank of the coal beds in central Texas is generally lignite (table 1), but some coal ranks as great as subbituminous C have been reported (Mukhopadhyay, 1989). The outcrop of the Wilcox Group in central Texas strikes northeast, extends for approximately 140 mi between the Trinity and Colorado Rivers, and covers parts of Bastrop, Falls, Freestone, Lee, Leon, Limestone, Milam, Navarro, Robertson, and Williamson Counties (Figure 1). Three formations, in ascending order, the Hooper, Simsboro, and Calvert Bluff, are recognized in central Texas (Figure 2). The Wilcox Group is underlain conformably by the Midway Group, a mudstone-dominated marine sequence, and is overlain and scoured locally by the Carrizo Sand, a fluvial unit at the base of the Claiborne Group.

  19. Effect of low quality effluent from wastewater stabilization ponds to receiving bodies, case of Kilombero sugar ponds and Ruaha river, Tanzania.

    PubMed

    Machibya, Magayane; Mwanuzi, Fredrick

    2006-06-01

    A study was conducted in a sewage system at Kilombero Sugar Company to review its design, configuration, effectiveness and the quality of influent and effluent discharged into the Ruaha river (receiving body). The concern was that, the water in the river, after effluent has joined the river, is used as drinking water by villages located downstream of the river. Strategic sampling at the inlet of the oxidation pond, at the outlet and in the river before and after the effluent has joined the receiving body (river) was undertaken. Samples from each of these locations were taken three times, in the morning, noon and evening. The sample were then analysed in the laboratory using standard methods of water quality analysis. The results showed that the configuration and or the layout of the oxidation ponds (treatment plant) were not in accordance with the acceptable standards. Thus, the BOD5 of the effluent discharged into the receiving body (Ruaha River) was in the order of 41 mg/l and therefore not meeting several standards as set out both by Tanzanian and international water authorities. The Tanzanian water authorities, for example, requires that the BOD5 of the effluent discharged into receiving bodies be not more that 30 mg/l while the World Health Organization (WHO) requires that the effluent quality ranges between 10 - 30 mg/l. The paper concludes that proper design of treatment plants (oxidation ponds) is of outmost importance especially for factories, industries, camps etc located in rural developing countries where drinking water from receiving bodies like rivers and lakes is consumed without thorough treatment. The paper further pinpoint that both owners of treatment plants and water authorities should establish monitoring/management plan such that treatment plants (oxidation ponds) could be reviewed regarding the change on quantity of influent caused by population increase.

  20. Traditional Aids to Navigation: The Next 25 Years

    NASA Astrophysics Data System (ADS)

    Turner, Neil Macdonald

    The authors of this paper are the three General Lighthouse Authorities (GLAs) of the United Kingdom and the Republic of Ireland. It was presented on their behalf at the RIN-96 conference by Captain Turner. The paper gives a brief overview of the policy of the GLAs (i.e. the Corporation of Trinity House, the Northern Lighthouse Board and the Commissioners of Irish Lights) regarding the provision of an aids to navigation service with emphasis on the future prospects of traditional aids to navigation over the next 25 years. The three GLAs have recently carried out a consultation exercise on marine aids to navigation into the 21st century. The results of this consultation exercise are discussed. It should be noted that, for clarity, the General Lighthouse Authorities (GLAs) refer to the systems that they provide as (AtoN), to differentiate their provision from the equipment carried on board ships for navigational purposes which are referred to by the GLAs as . This paper therefore in the main deals with AtoN.The coastlines within the GLAs' areas of responsibility rank with the most heavily trafficked and dangerous in the world. The coastlines vary from isolated rocks and the steep, Atlantic coastline, to the low-lying relatively featureless coastline of south-east England, off which are shifting sandbanks and channels. The tidal range in GLA waters is significant and tidal streams can reach 10 knots or more in a number of places.

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