Sample records for zone red river

  1. 76 FR 22033 - Safety Zone; Red River Safety Zone, Red River, MN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-20

    ...-AAOO Safety Zone; Red River Safety Zone, Red River, MN AGENCY: Coast Guard, DHS. ACTION: Temporary... a temporary safety zone on the Red River, MN. This safety zone is being established to ensure the... Red River in the State of Minnesota north of a line drawn across latitude 46[deg]20'00'' N, including...

  2. 76 FR 23485 - Safety Zone; Red River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-27

    ...-AA00 Safety Zone; Red River AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone for all waters of the Red River in the State of North..., extending the entire width of the river. This safety zone is needed to protect persons and vessels from...

  3. 75 FR 16010 - Safety Zone; Red River, MN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-31

    ...-AAOO Safety Zone; Red River, MN AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard Captain of the Port (COTP), Marine Safety Unit Duluth, MN is establishing a temporary safety zone on the waters of the Red River, MN. This safety zone is being established to ensure the safety of...

  4. 75 FR 17106 - Safety Zone; Red Bull Air Race, Detroit River, Detroit, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-05

    ...-AA00 Safety Zone; Red Bull Air Race, Detroit River, Detroit, MI AGENCY: Coast Guard, DHS. ACTION... Detroit River during the Red Bull Air Race. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with air races. DATES: Comments and related material must be...

  5. Water and sediment dynamics in the Red River mouth and adjacent coastal zone

    NASA Astrophysics Data System (ADS)

    van Maren, D. S.

    2007-02-01

    The coastline of the Red River Delta is characterized by alternating patterns of rapid accretion and severe erosion. The main branch of the Red River, the Ba Lat, is presently expanding seaward with a main depositional area several km downstream and offshore the Ba Lat River mouth. Sediment deposition rates are approximately 6 m in the past 50 years. Field measurements were done to determine the processes that regulate marine dispersal and deposition of sediment supplied by the Ba Lat. These measurements reveal that the waters surrounding the Ba Lat delta are strongly stratified with a pronounced southward-flowing surface layer. This southward-flowing surface layer is a coastal current which is generated by river plumes that flow into the coastal zone north of the Ba Lat. However, outflow of turbid river water is not continuous and most sediment enters the coastal zone when the alongshore surface velocities are low. As a consequence, most sediment settles from suspension close to the river mouth. In addition to the southward surface flow, the southward near-bottom currents are also stronger than northward currents. Contrasting with the residual flow near-surface, this southward flow component near-bottom is caused by tidal asymmetry. Because most sediment is supplied by the Ba Lat when wave heights are low, sediment is able to consolidate and therefore the long-term deposition is southward of, but still close to, the Ba Lat mouth.

  6. 77 FR 27118 - Safety Zone; Rocketts Red Glare Fireworks, Ancarrows Landing Park, James River, Richmond, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-09

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2012-0114] RIN 1625-AA00 Safety Zone; Rocketts Red Glare Fireworks, Ancarrows Landing Park, James River, Richmond, VA... Glare Fireworks, Ancarrows Landing Park, James River, Richmond, VA in the Federal Register (76 FR 13525...

  7. 33 CFR 165.T09-0263 - Safety zone; Red River Safety Zone, Red River, MN.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... across latitude 46°20'00” N, including those portions of the river in Wilkin, Clay, Norman, Polk... designated on-scene representative. (2) This safety zone is closed to all vessel traffic, except as may be... vessel. The Captain of the Port Duluth or his designated on-scene representative may be contacted via VHF...

  8. The Ailao Shan-Red River shear zone (Yunnan, China), Tertiary transform boundary of Indochina

    NASA Astrophysics Data System (ADS)

    Leloup, Philippe Hervé; Lacassin, Robin; Tapponnier, Paul; Schärer, Urs; Zhong, Dalai; Liu, Xiaohan; Zhang, Liangshang; Ji, Shaocheng; Trinh, Phan Trong

    1995-12-01

    The Red River Fault zone (RRF) is the major geological discontinuity that separates South China from Indochina. Today it corresponds to a great right-lateral fault, following for over 900 km the edges of four narrow (< 20 km wide) high-grade gneiss ranges that together form the Ailao Shan-Red River (ASRR) metamorphic belt: the Day Nui Con Voi in Vietnam, and the Ailao, Diancang and Xuelong Shan in Yunnan. The Ailao Shan, the longest of those ranges, is fringed to the south by a strip of low-grade schists that contain ultramafic bodies. The ASRR belt has thus commonly been viewed as a suture. A detailed study of the Ailao and Diancang Shan shows that the gneiss cores of the ranges are composed of strongly foliated and lineated mylonitic gneisses. The foliation is usually steep and the lineation nearly horizontal, both being almost parallel to the local trend of the gneissic cores. Numerous shear criteria, including asymmetric tails on porphyroclasts, C-S or C'-S structures, rolling structures, asymmetric foliation boudinage and asymmetric quartz axis fabrics, indicate that the gneisses have undergone intense, progressive left-lateral shear. P-T studies show that left-lateral strain occurred under amphibolite-facies conditions (3-7 kb and 550-780°C). In both ranges high-temperature shear was coeval with emplacement of leucocratic melts. Such deformed melts yield {U}/{Pb} ages between 22.4 and 26.3 Ma in the Ailao Shan and between 22.4 and 24.2 Ma in the Diancang Shan, implying shear in the Lower Miocene. The mylonites in either range rapidly cooled to ≈ 300°C between 22 and 17 Ma, before the end of left-lateral motion. The similarity of deformation kinematics, P-T conditions, and crystallization ages in the aligned Ailao and Diancang Shan metamorphic cores, indicate that they represent two segments of the same Tertiary shear zone, the Ailao Shan-Red River (ASRR) shear zone. Our results thus confirm the idea that the ASRR belt was the site of major left

  9. 75 FR 41764 - Safety Zone; Mississippi River, Mile 840.0 to 839.8

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-19

    ...-AA00 Safety Zone; Mississippi River, Mile 840.0 to 839.8 AGENCY: Coast Guard, DHS. ACTION: Temporary... Mississippi River, Mile 840.0 to 839.8, extending the entire width of the river. This safety zone is needed to... Purpose On July 24, 2010 the Red Bull North America will be conducting a flying aircraft regatta at mile...

  10. Red River of the North Reconnaissance Report: Pembina River.

    DTIC Science & Technology

    1980-12-01

    the mallard, blue -winged teal, pintail, gadwall, northern shoveler, green -winged teal, American wigeon, and redhead. [ Rush Lake receives heavy use...r.D-Ri4. 787 RED RIVER OF THE NORTH RECONNAISSANCE REPORT: PEMBINA 1/2 RIVER(IJ) GULF SOUTH RESEAPRCH INST BATON ROUGE LA DEC 9 DACU77-8@-C-e8i7B...ii% ---. :w: U ;r u --- ’w AD-A140 787 RED RIVER OF THE NORTH RECONNAISSANCE , %h,%! iREPORT , _ PEMBINA ; RIVER CD j- - D FINAL RMPORT ’ December

  11. RED RIVER BASIN BIOLOGICAL MONITORING WORKGROUP

    EPA Science Inventory

    The goal of this project is to improve coordination of biological monitoring efforts in the Red River Basin. This is to be accomplished through coordination of a study to develop sampling protocols for macroinvertebrates in the main stream and lower tributaries of the Red River....

  12. 75 FR 54026 - Safety Zone; Red Bull Flugtag, Delaware River, Camden, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-03

    ... Franklin Bridge. The safety zone will restrict vessel traffic from a portion of the Delaware River [email protected] . If you have questions on viewing the docket, call Renee V. Wright, Program Manager... from vessels and vessels from any debris in the water as a result from the event. Under 5 U.S.C. 553(d...

  13. 33 CFR 207.380 - Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. 207.380 Section 207.380 Navigation and Navigable... Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. (a) Parties...

  14. 33 CFR 207.380 - Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. 207.380 Section 207.380 Navigation and Navigable... Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. (a) Parties...

  15. 33 CFR 207.380 - Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. 207.380 Section 207.380 Navigation and Navigable... Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. (a) Parties...

  16. 33 CFR 207.380 - Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. 207.380 Section 207.380 Navigation and Navigable... Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. (a) Parties...

  17. 33 CFR 207.380 - Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. 207.380 Section 207.380 Navigation and Navigable... Red Lake River, Minn.; logging regulations for portion of river above Thief River Falls. (a) Parties...

  18. Thermochronology of mineral grains in the Red and Mekong Rivers, Vietnam: Provenance and exhumation implications for Southeast Asia

    NASA Astrophysics Data System (ADS)

    Clift, Peter D.; Carter, Andrew; Campbell, Ian H.; Pringle, Malcolm S.; van Lap, Nguyen; Allen, Charlotte M.; Hodges, Kip V.; Tan, Mai Thanh

    2006-10-01

    Sand samples from the mouths of the Red and Mekong Rivers were analyzed to determine the provenance and exhumation history of their source regions. U-Pb dating of detrital zircon grains shows that the main sources comprise crust formed within the Yangtze Craton and during the Triassic Indosinian Orogeny. Indosinian grains in the Mekong are younger (210-240 Ma) than those in the Red River (230-290 Ma), suggesting preferential erosion of the Qiangtang Block of Tibet into the Mekong. The Red River has a higher proportion of 700-800 Ma grains originally derived from the Yangtze Craton. 40Ar/39Ar dating of muscovite grains demonstrates that rocks cooled during the Indosinian Orogeny are dominant in both rivers, although the Mekong also shows a grain population cooling at 150-200 Ma that is not seen in the Red River and which is probably of original Qiangtang Block origin. Conversely, the Red River contains a significant mica population (350-500 Ma) eroded from the Yangtze Craton. High-grade metamorphic rocks exposed in the Cenozoic shear zones of southeast Tibet-Yunnan are minority sources to the rivers. However, apatite and zircon fission track ages show evidence for the dominant sources, especially in the Red River, only being exhumed through the shallowest 5-3 km of the crust since ˜25 Ma. The thermochronology data are consistent with erosion of recycled sediment from the inverted Simao and Chuxiong Basins, from gorges that incise the eastern flank of the plateau. Average Neogene exhumation rates are 104-191 m/Myr in the Red River basin, which is within error of the 178 ± 35 m/Myr estimated from Pleistocene sediment volumes. Sparse fission track data from the Mekong River support the Ar-Ar and U-Pb ages in favoring tectonically driven rock uplift and gorge incision as the dominant control on erosion, with precipitation being an important secondary influence.

  19. 75 FR 51945 - Safety Zone; Potomac River, St. Mary's River, St. Inigoes, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-24

    ...-AA00 Safety Zone; Potomac River, St. Mary's River, St. Inigoes, MD AGENCY: Coast Guard, DHS. ACTION... of the St. Mary's River, a tributary of the Potomac River. This action is necessary to provide for.... Navy helicopter located near St. Inigoes, Maryland. This safety zone is intended to protect the...

  20. 33 CFR 117.665 - Red River of the North.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Red River of the North. 117.665 Section 117.665 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Minnesota § 117.665 Red River of the North. The draws...

  1. 33 CFR 117.665 - Red River of the North.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Red River of the North. 117.665 Section 117.665 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Minnesota § 117.665 Red River of the North. The draws...

  2. 33 CFR 117.665 - Red River of the North.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Red River of the North. 117.665 Section 117.665 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Minnesota § 117.665 Red River of the North. The draws...

  3. 33 CFR 117.665 - Red River of the North.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Red River of the North. 117.665 Section 117.665 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Minnesota § 117.665 Red River of the North. The draws...

  4. 33 CFR 117.665 - Red River of the North.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Red River of the North. 117.665 Section 117.665 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Minnesota § 117.665 Red River of the North. The draws...

  5. Red shiner invasion and hybridization with blacktail shiner in the upper Coosa River, USA

    USGS Publications Warehouse

    Walters, D.M.; Blum, M.J.; Rashleigh, Brenda; Freeman, B.J.; Porter, B.A.; Burkhead, N.M.

    2008-01-01

    Human disturbance increases the invasibility of lotic ecosystems and the likelihood of hybridization between invasive and native species. We investigated whether disturbance contributed to the invasion of red shiner (Cyprinella lutrensis) and their hybridization with native blacktail shiner (C. venusta stigmatura) in the Upper Coosa River System (UCRS). Historical records indicated that red shiners and hybrids rapidly dispersed in the UCRS via large, mainstem rivers since the mid to late 1990s. We measured the occurrence and abundance of parental species and hybrids near tributary-mainstem confluences and characterized populations at these incipient contact zones by examining variation across morphological traits and molecular markers. Red shiners represented only 1.2% of total catch in tributaries yet introgression was widespread with hybrids accounting for 34% of total catch. Occurrence of red shiners and hybrids was highly correlated with occurrence of blacktail shiners, indicating that streams with native populations are preferentially colonized early in the invasion and that hybridization is a key process in the establishment of red shiners and their genome in new habitats. Tributary invasion was driven by post-F1 hybrids with proportionately greater genomic contributions from blacktail shiner. Occurrence of red shiners and hybrids and the relative abundance of hybrids significantly increased with measures of human disturbance including turbidity, catchment agricultural land use, and low dissolved oxygen concentration. Red shiners are a significant threat to Southeast Cyprinella diversity, given that 41% of these species hybridize with red shiner, that five southeastern drainages are invaded, and that these drainages are increasingly disturbed by urbanization. ?? 2007 Springer Science+Business Media B.V.

  6. Timing of Multiple Stages of Granitic Magmatisms: Constraints on Shearing along the Ailao Shan-Red River Shear Zone

    NASA Astrophysics Data System (ADS)

    Chen, W.; Liu, J.; Fan, W.; Feng, J.; DAO, H.; Yan, J.

    2017-12-01

    The Ailao Shan-Red River (ASRR) shear zone is a large scale shear zone resulted from collision between India and Euro-Asia Plates in Cenozoic. Magmatisms related to the shear zone evolution took place before, during or after shearing process that contributes to pre-, syn- and post- granitic emplacement. Combined structure, fabric and geochronology analyses of granitic rocks within sheared Proterozoic country rocks along the ASRR shear zone offer important clues on timing of shearing activity and constraining on transformation of types of the shearing. Zircon U-Pb dating results indicate that the granitic intrusions within the ASRR shear zone are broadly grouped into two stages: Permo-Triassic (256.0±6.0 Ma, 244.0±7.6 Ma and 234.0±9.3 Ma) and Cenozoic (27.1±1.5 Ma, 26.34±0.62 Ma and 25.10±0.61 Ma). The Permo-Triassic intrusions show evidences for intensive mylonitization. The older Cenozoic granitic rocks were also strongly sheared, but the younger Cenozoic granites were weakly sheared and they cut across early intrusions (e.g. the Permo-Triassic and older Cenozoic intrusions). Petrographic microscope observations suggest that the Permo-Triassic granitic intrusions show prominent superimposition of high temperature mylonization by low temperature mylonization. Quartz c-axis fabrics of the granites demonstrate that there are multiple maxima due to the superimposition. The older Cenozoic granitic intrusion of 27.1±1.5 Ma shows weak mylonization and possess four symmetrical point maxima in their quartz c-axis fabrics. The EBSD data indicate that the intrusion experienced pure shearing. Intrusions of 26.34±0.62 Ma and 25.10±0.61 Ma show evidences for very weak mylonization. The quartz c-axis patterns of the rocks dominantly resulted from low temperature deformation by simple shearing. It is concluded, in summary, that: (1) Permo-Triassic granitic intrusions experienced superimposed shearing of high and low temperatures; (2) Evidences for both early pure

  7. Water resources of Red River Parish, Louisiana

    USGS Publications Warehouse

    Newcome, Roy; Page, Leland Vernon

    1963-01-01

    Red River Parish is on the eastern flank of the Sabine uplift in northwestern Louisiana. The 'area is underlain by lignitic clay and sand of Paleocene and Eocene age which dip to the east at the rate of about 30 feet per mile. The Red River is entrenched in these rocks in the western part of the parish. Alternating valley filling and erosion during the Quaternary period have resulted in the present lowland with flanking terraces. In the flood-plain area moderate to large quantities of very hard, iron-bearing water, suitable for irrigation, are available to wells in the alluvial sand and gravel of Quaternary age. The aquifer ranges in thickness from 20 to slightly more than 100 feet. It is recharged by downward seepage of rainfall through overlying clay and silt, by inflow from older sands adjacent to and beneath the entrenched valley, and by infiltration from the streams where the water table is below stream level during flood stages or as a result of pumping. Water levels are highest in the middle of the valley. Ground water moves mainly toward the Red River on the east and Bayou Pierre on the west, but small amounts move down the valley. Computations based on water-level and aquifer-test data indicate that the Quaternary alluvium contains more than 330 billion gallons of ground water in storage and that the maximum discharge of ground water to the streams is slightly more than 30 mgd (million gallons per day). At times of high river stage, surface water flows into the aquifer at a rate that depends in part upon the height and duration of the river stage. Moderate supplies of soft, iron-bearing water may be obtained from dissected Pleistocene terrace deposits that flank the flood plains of the Red River and Black Lake Bayou. However, the quantity of water that can be pumped from these deposits varies widely from place to place because of differences in the areal extent and saturated thickness of the segments of the deposits; this extent and thickness are governed

  8. 76 FR 25545 - Safety Zone; Blue Crab Festival Fireworks Display, Little River, Little River, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-05

    ...-AA00 Safety Zone; Blue Crab Festival Fireworks Display, Little River, Little River, SC AGENCY: Coast... zone on the waters of Little River in Little River, South Carolina during the Blue Crab Festival... this rule because the Coast Guard did not receive notice of the Blue Crab Festival Fireworks Display...

  9. 77 FR 24838 - Safety Zone; Magothy River, Sillery Bay, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-26

    ...-AA00 Safety Zone; Magothy River, Sillery Bay, MD AGENCY: Coast Guard, DHS. ACTION: Final rule. SUMMARY: The Coast Guard is establishing a safety zone in certain waters of the Magothy River, in Sillery Bay... a notice of proposed rulemaking (NPRM) entitled ``Safety Zone; Magothy River, Sillery Bay, MD'' in...

  10. 78 FR 59821 - Safety Zone, Delaware River; Wilmington, DE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-30

    ... 1625-AA00 Safety Zone, Delaware River; Wilmington, DE AGENCY: Coast Guard, DHS. ACTION: Temporary final... safety zone will encompass all waters of Deepwater Anchorage No. 6, Delaware River, Wilmington, DE from... navigable waters of Deepwater Point Anchorage No. 6, Delaware River, Wilmington, DE, the effect of this...

  11. Characterizing a middle to upper crustal shear zone: Microstructures, quartz c-axis fabrics, deformation temperatures and flow vorticity analysis of the northern Ailao Shan-Red River shear zone, China

    NASA Astrophysics Data System (ADS)

    Wu, Wenbin; Liu, Junlai; Zhang, Lisheng; Qi, Yinchuan; Ling, Chengyang

    2017-05-01

    Structural and microstructural characteristics, deformation temperatures and flow vorticities of the northern Ailao Shan (ALS) high-grade metamorphic belt provide significant information regarding the nature and tectonic evolution of the Ailao Shan-Red River (ASRR) shear zone. Mineral deformation mechanisms, quartz lattice-preferred orientation (LPO) patterns and the opening angles of quartz c-axis fabrics of samples from the Gasa section indicate that the northern ALS high-grade metamorphic belt has experienced progressive shear deformation. The early stage shearing is characterized by a gradual decrease of deformation temperatures from >650 °C at the northeastern unit to ca. 300 °C at the southwestern unit, that results in the formation of migmatites, mylonitic gneisses, thin bedded mylonites, mylonitic schists and phyllonites from the NE to SW across the strike of the shear zone. The late stage low-temperature (300-400 °C) shearing is superimposed on the early deformation throughout the belt with the formation of discrete, small-scale shear zones, especially in the thin-banded mylonitic rocks along both margins. The kinematic vorticity values estimated by rotated rigid porphyroclast method and oblique grain-shaped/quartz c-axis-fabric method imply that the general shear-dominated flow (0.49-0.77) progressively changed to a simple shear-dominated flow (0.77-1) toward the late stage of ductile deformation. The two stages of shearing are consistent with early shortening-dominated and late extrusion-controlled regional tectonic processes. The transition between them occurred at ca. 27 Ma in the ALS high-grade metamorphic belt along the ASRR shear zone. The large amount of strike-slip displacement along the ASRR shear zone is predominantly attributed to accelerated flow along the shear zone during the late extrusion-controlled tectonic process.

  12. 33 CFR 3.65-15 - Sector Columbia River Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Inspection Zone and Captain of the Port Zone. 3.65-15 Section 3.65-15 Navigation and Navigable Waters COAST... ZONES, AND CAPTAIN OF THE PORT ZONES Thirteenth Coast Guard District § 3.65-15 Sector Columbia River Marine Inspection Zone and Captain of the Port Zone. Sector Columbia River's office is located in Astoria...

  13. 33 CFR 3.65-15 - Sector Columbia River Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Inspection Zone and Captain of the Port Zone. 3.65-15 Section 3.65-15 Navigation and Navigable Waters COAST... ZONES, AND CAPTAIN OF THE PORT ZONES Thirteenth Coast Guard District § 3.65-15 Sector Columbia River Marine Inspection Zone and Captain of the Port Zone. Sector Columbia River's office is located in Astoria...

  14. 33 CFR 3.65-15 - Sector Columbia River Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Inspection Zone and Captain of the Port Zone. 3.65-15 Section 3.65-15 Navigation and Navigable Waters COAST... ZONES, AND CAPTAIN OF THE PORT ZONES Thirteenth Coast Guard District § 3.65-15 Sector Columbia River Marine Inspection Zone and Captain of the Port Zone. Sector Columbia River's office is located in Astoria...

  15. 33 CFR 3.65-15 - Sector Columbia River Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Inspection Zone and Captain of the Port Zone. 3.65-15 Section 3.65-15 Navigation and Navigable Waters COAST... ZONES, AND CAPTAIN OF THE PORT ZONES Thirteenth Coast Guard District § 3.65-15 Sector Columbia River Marine Inspection Zone and Captain of the Port Zone. Sector Columbia River's office is located in Astoria...

  16. Instrumentation of the Red River Bridge at Boyce, Louisiana : final report.

    DOT National Transportation Integrated Search

    1991-01-01

    The report describes the instrumentation program of Red River Bridge at Boyce, Louisiana. The objectives of the program were to measure and evaluate time-dependent deformations, deflections, and temperatures of the Red River Bridge superstructure. To...

  17. Instrumentation of the Red River Bridge at Boyce, Louisiana : final report.

    DOT National Transportation Integrated Search

    1988-08-01

    The report describes the instrumentation program of Red River Bridge at Boyce, Louisiana. The objectives of the program were to measure and evaluate time-dependent deformations, deflections, and temperatures of the Red River Bridge superstructure. To...

  18. 33 CFR 165.513 - Safety Zone; Magothy River, Sillery Bay, MD.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone; Magothy River... Safety Zone; Magothy River, Sillery Bay, MD. (a) Regulated area. The following area is a safety zone: All waters of the Magothy River, in Sillery Bay, contained within lines connecting the following positions...

  19. 33 CFR 165.513 - Safety Zone; Magothy River, Sillery Bay, MD.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zone; Magothy River... Safety Zone; Magothy River, Sillery Bay, MD. (a) Regulated area. The following area is a safety zone: All waters of the Magothy River, in Sillery Bay, contained within lines connecting the following positions...

  20. 33 CFR 165.513 - Safety Zone; Magothy River, Sillery Bay, MD.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone; Magothy River... Safety Zone; Magothy River, Sillery Bay, MD. (a) Regulated area. The following area is a safety zone: All waters of the Magothy River, in Sillery Bay, contained within lines connecting the following positions...

  1. 33 CFR 165.T08-0080 - Safety Zone; Cincinnati Reds Fireworks Displays Ohio River, Mile 470.1-470.4, Cincinnati, OH.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Fireworks Displays Ohio River, Mile 470.1-470.4, Cincinnati, OH. 165.T08-0080 Section 165.T08-0080... Displays Ohio River, Mile 470.1-470.4, Cincinnati, OH. (a) Location. The following area is a temporary safety zone: all waters of the Ohio River, surface to bottom, from mile 470.1 to mile 470.4 on the Ohio...

  2. 33 CFR 165.722 - Security Zone: St. Johns River, Jacksonville, Florida.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone: St. Johns River....722 Security Zone: St. Johns River, Jacksonville, Florida. (a) Location. The water located within the following area is established as a security zone: beginning at the shoreline of the St. Johns River at the...

  3. Protect and Restore Red River Watershed, 2007-2008 Annual Report.

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

    Bransford, Stephanie

    2009-05-04

    The Nez Perce Tribe Department of Fisheries Resource Management, Watershed Division approaches watershed restoration with a ridge-top to ridge-top approach. The Nez Perce Tribe (NPT) and the Nez Perce National Forest (NPNF) have formed a partnership in completing watershed restoration activities, and through this partnership more work is accomplished by sharing funding and resources in our effort. The Nez Perce Tribe began watershed restoration projects within the Red River Watershed of the South Fork Clearwater River in 2001. Progress has been made in restoring the watershed through road decommissioning and culvert replacement. From completing a watershed assessment to two NEPAmore » efforts and a final stream restoration design, we will begin the effort of restoring the mainstem channel of Red River to provide spawning and rearing habitat for anadromous and resident fish species. Roads have been surveyed and prioritized for removal or improvement as well as culverts being prioritized for replacement to accommodate fish passage throughout the watershed. Another major, and extremely, important component of this project is the Red River Meadow Conservation Easement. We have begun the process of pursuing a conservation easement on approximately 270 acres of prime meadow habitat (Red River runs through this meadow and is prime spawning and rearing habitat).« less

  4. 78 FR 62359 - Red River Hydro LLC; Notice of Availability of Final Environmental Assessment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-21

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13160-004] Red River Hydro... Projects has reviewed Red River Hydro LLC's application for an original license for the Overton Lock and... (EA). The project would be located on the Red River in Rapides Parish, Louisiana, at an existing lock...

  5. 78 FR 36767 - Red River Hydro LLC; Notice of Availability of Draft Environmental Assessment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-19

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13160-004] Red River Hydro... Projects has reviewed Red River Hydro LLC's application for an original license for the Overton Lock and... assessment (draft EA). The project would be located on the Red River in Rapides Parish, Louisiana, at an...

  6. 78 FR 27033 - Safety Zone; High Water Conditions; Illinois River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-09

    ...-AA00 Safety Zone; High Water Conditions; Illinois River AGENCY: Coast Guard, DHS. ACTION: Temporary... current extreme high-water conditions. This safety zone is necessary to protect the general public, levee... dangerously high water conditions, the Coast Guard established a safety zone on the Illinois River from Mile...

  7. 76 FR 38018 - Safety Zone, Newport River; Morehead City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-29

    ...-AA00 Safety Zone, Newport River; Morehead City, NC AGENCY: Coast Guard, DHS. ACTION: Temporary final... the main span US 70/Morehead City-Newport River high rise bridge in Carteret County, NC. This safety...) entitled Safety Zone, Newport River; Morehead City, North Carolina in the Federal Register (33 FR 165). We...

  8. 78 FR 24071 - Safety Zone; Pasquotank River; Elizabeth City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-24

    ... 1625-AA00 Safety Zone; Pasquotank River; Elizabeth City, NC AGENCY: Coast Guard, DHS. ACTION: Temporary... Pasquotank River in Elizabeth City, NC in support of the Fireworks display for the Potato Festival. This... Guard is establishing a safety zone on the navigable waters of Pasquotank River in Elizabeth City, NC...

  9. 76 FR 29645 - Safety Zone, Newport River; Morehead City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-23

    ...-AA00 Safety Zone, Newport River; Morehead City, NC AGENCY: Coast Guard, DHS. ACTION: Temporary final... the main span US 70/Morehead City--Newport River high rise bridge in Carteret County, NC. This safety... Zone, Newport River; Morehead City, North Carolina in the Federal Register (33 FR 165). We received no...

  10. 78 FR 44433 - Safety Zone; Metedeconk River; Brick Township, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-24

    ...-AA00 Safety Zone; Metedeconk River; Brick Township, NJ AGENCY: Coast Guard, DHS. ACTION: Temporary... recurring fireworks event held in the Metedeconk River in Brick Township, NJ. The fireworks display is... for the Metedeconk River, Brick Township, NJ Safety Zone will be added from 6:30 p.m. until 10 p.m. on...

  11. 75 FR 33690 - Safety Zone, Lights on the River Fireworks Display, Delaware River, New Hope, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-15

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 100 [Docket No. USCG-2010-0443] RIN 1625-AA00 Safety Zone, Lights on the River Fireworks Display, Delaware River, New Hope, PA AGENCY: Coast... safety zone in during the ``Lights on the River'' fireworks shows. Assistance for Small Entities Under...

  12. 75 FR 8491 - Security Zones; Brazos River, Freeport, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-25

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2009-0501] RIN 1625-AA87 Security Zones; Brazos River, Freeport, TX AGENCY: Coast Guard, DHS. ACTION: Final rule. SUMMARY: The Coast Guard has established four permanent security zones in the Brazos River in Freeport, Texas...

  13. 33 CFR 165.T05-0091 - Safety Zone; Alligator River, NC.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; Alligator River, NC... Safety Zone; Alligator River, NC. (a) Definitions. For the purposes of this section, Captain of the Port...) Location. The following area is a safety zone: The temporary safety zone will encompass a 100 yard radius...

  14. The changing flow regime and sediment load of the Red River, Viet Nam

    NASA Astrophysics Data System (ADS)

    Le, Thi Phuong Quynh; Garnier, Josette; Gilles, Billen; Sylvain, Théry; Van Minh, Chau

    2007-02-01

    SummarySouth-East Asian Rivers contribute very significantly to the global sediment load to the ocean, hence to global biogeochemical cycles, and are subject to rapid changes owing to recent population and economic growth. The Red River system (Viet Nam and China) offers a good example of these changes. Previous estimates (before the year 1980) of the suspended matter loading of the Red River ranged from 100 to 170 × 10 6 t yr -1, i.e. from 640 to 1060 t km -2 yr -1. The strong dependence of suspended solid transport on hydrology results in a large year-to-year variability. Based on the available hydrological data from the period 1997-2004, and on a one-year survey of daily suspended matter of the three main tributaries of the Red River system in 2003, a simplified modeling approach, distinguishing between surface runoff and base flow, is established to estimate the mean suspended loading of the Red River under present conditions. The obtained value is 40 × 10 6 t yr -1, corresponding to a specific load of 280 t km -2 yr -1. It reflects a 70% decrease of the total suspended load since the impoundment of the Hoa Binh and Thac Ba reservoirs in the 1980s. Following the planned construction of two additional reservoirs, the model predicts a further reduction by 20% of the suspended load of the Red River, which might be compensated by an expected increase in suspended loading due to enhanced rainfall induced by climate change. Using measurements of the total phosphorus content of the suspended material in the different Red River tributaries, the present phosphorus delivery by the Red River can be estimated as 36 × 10 6 kgP yr -1.

  15. 33 CFR 165.515 - Safety Zone: Cape Fear River, Wilmington, North Carolina.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: Cape Fear River... § 165.515 Safety Zone: Cape Fear River, Wilmington, North Carolina. (a) Location. The following area is a safety zone: (1) The waters of the Cape Fear River bounded by a line connecting the following...

  16. Direct dating of left-lateral deformation along the Red River shear zone, China and Vietnam

    NASA Astrophysics Data System (ADS)

    Gilley, Lisa D.; Harrison, T. Mark; Leloup, P. H.; Ryerson, F. J.; Lovera, Oscar M.; Wang, Jiang-Hai

    2003-02-01

    Exposures of high-grade, midcrustal rocks within the Red River shear zone (RRSZ), which separates the Indochina and South China blocks, exhibit clear evidence of left-lateral, ductile deformation. Assuming that the South China Sea represents a pull-apart basin formed at the southeastern termination of the RRSZ, it has been argued that seafloor magnetic anomalies constrain the timing of sinistral slip accommodated by the RRSZ between ˜32 and 17 Ma at a rate of ˜4 cm/yr. While 40Ar/39Ar thermochronometry indicates that left-lateral slip occurred along the RRSZ between 25 and 17 Ma, the timing of earlier high-temperature deformation has not been directly constrained. In situ Th-Pb ion microprobe dating of monazite inclusions in garnets allows direct assessment of the timing of amphibolite-grade metamorphism and synchronous left-lateral shearing. Results from northern segments of the RRSZ in Yunnan, China, indicate that synkinematic garnet growth occurred between 34 and 21 Ma and are the first to document late Oligocene metamorphism and left-lateral shearing. Data from the southern RRSZ within Vietnam are complicated by Tertiary overprinting of rocks that experienced amphibolite facies metamorphism during the Indosinian orogeny (˜220 Ma). The period during which sinistral deformation is now constrained to have occurred along the RRSZ (i.e., 34-17 Ma) is essentially coincident with spreading of the South China seafloor (32-17 Ma). This temporal and kinematic link between left-lateral shearing along the RRSZ and opening of the South China Sea supports the view that Indochina was extruded from Asia as a block along lithospheric-scale strike-slip faults.

  17. Floods of 1950 in the Red River of the North and Winnipeg River basins

    USGS Publications Warehouse

    ,

    1952-01-01

    The floods of April-July 1950 in the Red River of the North and Winnipeg River Basins were the largest that have occurred in several decades and caused the greatest damage that the flooded area has ever sustained. Five lives were lost in the United States, owing to causes directly connected with the floods. The dual peaks--on upper river and tributaries, one in April and the other in May--of nearly the same size and" the large lake-like body of flood-water ponded between Grand Forks and Winnipeg were notable features of the flood in the Red River of the North Basin. The flood in the Winnipeg River Basin was characterized by the unusually large volume of runoff and the lateness of cresting on the Lake of the Woods.The floods were caused by a combination of causes: high antecedent soil moisture, high antecedent runoff, heavy snowfall, delayed breakup, and heavy precipitation during breakup. Mid-March snow-surveys, made in the area by hydrographers of the United States and Canadian services, showed that the snow pack north of Fargo, N. Dak., had an unusually high water content and a runoff potential increasing from west to east. A narrow band, extending from near Grand Forks, N. Dak., east-northeastward across the basin, had a water content of 5 inches or higher. April 15 marked the beginning of rapid melting throughout the basins; most of the snow was turned into water by the end of the first melt period on April 24. A return of winter-like conditions until May 10 brought more snow and set the stage for second flood crests.The records of stage and discharge collected on the Red River of the North at Grand Forks, N. Dak., since 1882 show that the important 1897 flood slightly exceeded the 1950 flood in both stage and discharge. Records collected by the Geological Survey and Corps of Engineers on the Red River of the North show that the 1950 flood stages exceeded any previously known from just below the mouth of Turtle River to the international boundary. Records for

  18. 75 FR 28757 - Security Zone; Potomac River, Washington Channel, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-24

    ...-AA87 Security Zone; Potomac River, Washington Channel, Washington, DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary security zone in certain waters of Washington Channel on the Potomac River. The security zone is necessary to provide for the...

  19. 33 CFR 165.1316 - Safety Zone; Columbia River, Astoria, Oregon.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone; Columbia River....1316 Safety Zone; Columbia River, Astoria, Oregon. (a) Location. The following area is a safety zone... Oregon shoreline at 123°49′36″ West to 46°11′51″ North thence east to 123°48′53″ West thence south to the...

  20. 33 CFR 165.1316 - Safety Zone; Columbia River, Astoria, Oregon.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone; Columbia River....1316 Safety Zone; Columbia River, Astoria, Oregon. (a) Location. The following area is a safety zone... Oregon shoreline at 123°49′36″ West to 46°11′51″ North thence east to 123°48′53″ West thence south to the...

  1. 33 CFR 165.1316 - Safety Zone; Columbia River, Astoria, Oregon.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone; Columbia River....1316 Safety Zone; Columbia River, Astoria, Oregon. (a) Location. The following area is a safety zone... Oregon shoreline at 123°49′36″ West to 46°11′51″ North thence east to 123°48′53″ West thence south to the...

  2. 33 CFR 165.1316 - Safety Zone; Columbia River, Astoria, Oregon.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zone; Columbia River....1316 Safety Zone; Columbia River, Astoria, Oregon. (a) Location. The following area is a safety zone... Oregon shoreline at 123°49′36″ West to 46°11′51″ North thence east to 123°48′53″ West thence south to the...

  3. 33 CFR 165.1316 - Safety Zone; Columbia River, Astoria, Oregon.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; Columbia River....1316 Safety Zone; Columbia River, Astoria, Oregon. (a) Location. The following area is a safety zone... Oregon shoreline at 123°49′36″ West to 46°11′51″ North thence east to 123°48′53″ West thence south to the...

  4. 33 CFR 165.721 - Safety Zone: St. Johns River, Jacksonville, FL.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: St. Johns River... Zone: St. Johns River, Jacksonville, FL. (a) Location. The following area is established as a safety... barges during the storage, preparation, and launching of fireworks in the St. Johns River between the...

  5. Bounds on strain in large Tertiary shear zones of SE Asia from boudinage restoration

    NASA Astrophysics Data System (ADS)

    Lacassin, R.; Leloup, P. H.; Tapponnier, P.

    1993-06-01

    We have used surface-balanced restoration of stretched, boudinaged layers to estimate minimum amounts of finite strain in the mylonitic gneisses of the Oligo-Miocene Red River-Ailao Shan shear zone (Yunnan, China) and of the Wang Chao shear zone (Thailand). The layer-parallel extension values thus obtained range between 250 and 870%. We discuss how to use such extension values to place bounds on amounts of finite shear strain in these large crustal shear zones. Assuming simple shear, these values imply minimum total and late shear strains of, respectively, 33 ± 6 and 7 ± 3 at several sites along the Red River-Ailao Shan shear zone. For the Wang Chao shear zone a minimum shear strain of 7 ± 4 is deduced. Assuming homogeneous shear would imply that minimum strike-slip displacements along these two left-lateral shear zones, which have been interpreted to result from the India-Asia collision, have been of the order of 330 ± 60 km (Red River-Ailao Shan) and 35 ± 20 km (Wang Chao).

  6. Incompletely Mixed Surface Transient Storage Zones at River Restoration Structures: Modeling Implications

    NASA Astrophysics Data System (ADS)

    Endreny, T. A.; Robinson, J.

    2012-12-01

    River restoration structures, also known as river steering deflectors, are designed to reduce bank shear stress by generating wake zones between the bank and the constricted conveyance region. There is interest in characterizing the surface transient storage (STS) and associated biogeochemical processing in the STS zones around these structures to quantify the ecosystem benefits of river restoration. This research explored how the hydraulics around river restoration structures prohibits application of transient storage models designed for homogenous, completely mixed STS zones. We used slug and constant rate injections of a conservative tracer in a 3rd order river in Onondaga County, NY over the course of five experiments at varying flow regimes. Recovered breakthrough curves spanned a transect including the main channel and wake zone at a j-hook restoration structure. We noted divergent patterns of peak solute concentration and times within the wake zone regardless of transect location within the structure. Analysis reveals an inhomogeneous STS zone which is frequently still loading tracer after the main channel has peaked. The breakthrough curve loading patterns at the restoration structure violated the assumptions of simplified "random walk" 2 zone transient storage models which seek to identify representative STS zones and zone locations. Use of structure-scale Weiner filter based multi-rate mass transfer models to characterize STS zones residence times are similarly dependent on a representative zone location. Each 2 zone model assumes 1 zone is a completely mixed STS zone and the other a completely mixed main channel. Our research reveals limits to simple application of the recently developed 2 zone models, and raises important questions about the measurement scale necessary to identify critical STS properties at restoration sites. An explanation for the incompletely mixed STS zone may be the distinct hydraulics at restoration sites, including a constrained

  7. 33 CFR 165.T0704 - Safety Zone: Savannah River, Savannah, Georgia.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: Savannah River....T0704 Safety Zone: Savannah River, Savannah, Georgia. (a) Location. The following area is a safety zone: Two hundred foot radius around Garden City Terminal, approximate position 32 degrees 8 minutes, N, 81...

  8. 76 FR 73511 - Safety Zone; M/V DAVY CROCKETT, Columbia River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ...-AA00 Safety Zone; M/V DAVY CROCKETT, Columbia River AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The U.S. Coast Guard is extending the enforcement period of a safety zone established on... sight at approximate river mile 117. The original safety zone was established on January 28, 2011. The...

  9. Red tree voles in the Columbia River Gorge and Hood River basin, Oregon

    Treesearch

    Eric D. Forsman; James K. Swingle; Michael A. McDonald; Scott A. Graham; Nicholas R. Hatch

    2009-01-01

    In 2003 to 2008, we conducted surveys to document the eastern and northern range limits of red tree voles (Arborimus longicaudus) in the Columbia River Gorge and Hood River basin, Oregon. Our survey indicated the current range of the vole includes the area from Wahkeena Creek, 20 km east of Troutdale to Seneca Fouts State Park, 6 km west of Hood...

  10. 77 FR 11423 - Safety Zone; Magothy River, Sillery Bay, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-27

    ...-AA00 Safety Zone; Magothy River, Sillery Bay, MD AGENCY: Coast Guard, DHS. ACTION: Notice of proposed rulemaking. SUMMARY: The Coast Guard proposes to establish a safety zone in certain waters of the Magothy... in the Magothy River, in Sillery Bay, Maryland. The proposed rule is needed to control movement...

  11. 76 FR 30018 - Safety Zone; Marysville Days Fireworks, St. Clair River, Marysville, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-24

    ...-AA00 Safety Zone; Marysville Days Fireworks, St. Clair River, Marysville, MI AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on St. Clair River, Marysville, MI. This zone is intended to restrict vessels from a portion of St. Clair River...

  12. One-dimensional flow model of the river-hyporheic zone system

    NASA Astrophysics Data System (ADS)

    Pokrajac, D.

    2016-12-01

    The hyporheic zone is a shallow layer beneath natural streams that is characterized by intense exchange of water, nutrients, pollutants and thermal energy. Understanding these exchange processes is crucial for successful modelling of the river hydrodynamics and morphodynamics at various scales from the river corridor up to the river network scale (Cardenas, 2015). Existing simulation models of hyporheic exchange processes are either idealized models of the tracer movement through the river-hyporheic zone system (e.g. TSM, Bencala and Walters, 1983) or detailed models of turbulent flow in a stream, coupled with a conventional 2D Darcian groundwater model (e.g. Cardenas and Wilson, 2007). This paper presents an alternative approach which involves a simple 1-D simulation model of the hyporheic zone system based on the classical SWE equations coupled with the newly developed porous media analogue. This allows incorporating the effects of flow unsteadiness and non-Darcian parameterization od the drag term in the hyporheic zone model. The conceptual model of the stream-hyporheic zone system consists of a 1D model of the open channel flow in the river, coupled with a 1D model of the flow in the hyporheic zone via volume flux due to the difference in the water level in the river and the hyporheic zone. The interaction with the underlying groundwater aquifer is neglected, but coupling the present model with any conventional groundwater model is straightforward. The paper presents the derivation of the 1D flow equations for flow in the hyporheic zone, the details of the numerical scheme used for solving them and the model validation by comparison with published experimental data. References Bencala, K. E., and R. A. Walters (1983) "Simulation of solute transport in a mountain pool-and-riffle stream- a transient storage model", Water Resources Reseach 19(3): 718-724. Cardenas, M. B. (2015) "Hyporheic zone hydrologic science: A historical account of its emergence and a

  13. 76 FR 34865 - Safety Zone; Rochester Harbor Festival, Genesee River, Rochester, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-15

    ...-AA00 Safety Zone; Rochester Harbor Festival, Genesee River, Rochester, NY AGENCY: Coast Guard, DHS... Genesee River, Rochester, NY for the Rochester Harbor Festival fireworks. This zone is intended to restrict vessels from the mouth of the Genesee River in Rochester during the Rochester Harbor Festival...

  14. 78 FR 48609 - Safety Zone; James River; Newport News, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-09

    ...-AA00 Safety Zone; James River; Newport News, VA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule...-0670 to read as follows: Sec. 165.T05-0670 Safety Zone, James River, Newport News, VA. (a) Definitions...'11'' N longitude 076[deg]38'40'' W, located near Fort Eustis in Newport News, VA. (c) Regulations. (1...

  15. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

  16. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

  17. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

  18. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

  19. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

  20. 33 CFR 165.805 - Security Zones; Calcasieu River and Ship Channel, Louisiana.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zones; Calcasieu River... § 165.805 Security Zones; Calcasieu River and Ship Channel, Louisiana. (a) Location. (1) The following areas are designated as fixed security zones (all coordinates are based upon North American Datum of...

  1. 33 CFR 165.805 - Security Zones; Calcasieu River and Ship Channel, Louisiana.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zones; Calcasieu River... § 165.805 Security Zones; Calcasieu River and Ship Channel, Louisiana. (a) Location. (1) The following areas are designated as fixed security zones (all coordinates are based upon North American Datum of...

  2. 33 CFR 165.805 - Security Zones; Calcasieu River and Ship Channel, Louisiana.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zones; Calcasieu River... § 165.805 Security Zones; Calcasieu River and Ship Channel, Louisiana. (a) Location. (1) The following areas are designated as fixed security zones (all coordinates are based upon North American Datum of...

  3. 33 CFR 165.805 - Security Zones; Calcasieu River and Ship Channel, Louisiana.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zones; Calcasieu River... § 165.805 Security Zones; Calcasieu River and Ship Channel, Louisiana. (a) Location. (1) The following areas are designated as fixed security zones (all coordinates are based upon North American Datum of...

  4. 33 CFR 165.905 - USX Superfund Site Safety Zones: St. Louis River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false USX Superfund Site Safety Zones: St. Louis River. 165.905 Section 165.905 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF... USX Superfund Site Safety Zones: St. Louis River. (a) The following areas of the St. Louis River...

  5. 33 CFR 165.905 - USX Superfund Site Safety Zones: St. Louis River.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false USX Superfund Site Safety Zones: St. Louis River. 165.905 Section 165.905 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF... USX Superfund Site Safety Zones: St. Louis River. (a) The following areas of the St. Louis River...

  6. 33 CFR 165.905 - USX Superfund Site Safety Zones: St. Louis River.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false USX Superfund Site Safety Zones: St. Louis River. 165.905 Section 165.905 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF... USX Superfund Site Safety Zones: St. Louis River. (a) The following areas of the St. Louis River...

  7. 33 CFR 165.905 - USX Superfund Site Safety Zones: St. Louis River.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false USX Superfund Site Safety Zones: St. Louis River. 165.905 Section 165.905 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF... USX Superfund Site Safety Zones: St. Louis River. (a) The following areas of the St. Louis River...

  8. 33 CFR 165.905 - USX Superfund Site Safety Zones: St. Louis River.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false USX Superfund Site Safety Zones: St. Louis River. 165.905 Section 165.905 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF... USX Superfund Site Safety Zones: St. Louis River. (a) The following areas of the St. Louis River...

  9. Petrography and chemistry of the bed sediments of the Red River in China and Vietnam: Provenance and chemical weathering

    NASA Astrophysics Data System (ADS)

    Borges, Joniell; Huh, Youngsook

    2007-02-01

    The Red (Hong) River straddles southwestern China and northern Vietnam and drains the eastern Indo-Asian collision zone. We collected bed sediments from its tributaries and main channel and report the petrographic point counts of framework grains and major oxide compositions as well as organic and inorganic carbon contents. The Q:F:Rf ratios and Q:F:(L-L c) ratios of the bed-load indicate quartz-poor, mineralogically immature sediments of recycled orogen provenance. The weathering indices based on major oxides — the chemical index of alteration (CIA) and the weathering index of Parker — are also consistent with the recycled sedimentary nature of the bed sediments. Using geographic information system (GIS) we calculated for each sample basin such parameters as temperature, precipitation, potential evapotranspiration, runoff, basin length, area, relief, and areal exposure of igneous, metamorphic and sedimentary rocks. Statistically meaningful correlations are obtained between the two weathering indices, between CIA and sedimentary to metamorphic rock fragments ratio, S / (S + M), and between CIA and sedimentary rock cover, but otherwise correlations are poor. The bed sediments preserve signatures of their provenance, but the effect of weathering is not clearly seen. Subtle differences in the bed sediments are observed between the Red and the Himalayan rivers (Indus, Ganges, and Brahmaputra) as well as between sub-basins within the Red River system and are attributed mainly to differences in lithology.

  10. 77 FR 34371 - Red River Hydro LLC; Notice of Application Tendered for Filing With the Commission and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-11

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13160-004] Red River Hydro... Application: Original Major License. b. Project No.: 13160-004. c. Date Filed: May 24, 2012. d. Applicant: Red River Hydro LLC (Red River), a wholly-owned subsidiary of Symbiotics LLC. e. Name of Project: Overton...

  11. 76 FR 49462 - Red River Hydro LLC; Notice of Application Tendered For Filing With the Commission and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-10

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13160-002] Red River Hydro... Application: New Major License. b. Project No.: 13160-002. c. Date Filed: July 29, 2011. d. Applicant: Red River Hydro LLC (Red River), a wholly-owned subsidiary of Symbiotics LLC. e. Name of Project: Overton...

  12. 76 FR 28315 - Security Zone; Portland Rose Festival on Willamette River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-17

    ... Zone; Portland Rose Festival on Willamette River AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of regulation. SUMMARY: The Coast Guard will enforce the Portland Rose Festival Security Zone in... River during the Portland Rose festival. During the enforcement period, no person or vessel may enter or...

  13. Sublacustrine river valley in the shelf zone of the Black Sea parallel to the Bulgarian coast

    NASA Astrophysics Data System (ADS)

    Preisinger, A.; Aslanian, S.; Beigelbeck, R.; Heinitz, W.-D.

    2009-04-01

    The considered sublacustrine river valley is situated in the shelf zone of the Black Sea. It runs in parallel to the Bulgarian coast, was formed in the time period of the Younger Dryas (Preisinger et al., 2005), and features an inclination of about 0.5 m/km. An about 200 km long sediment wall separates the approximately 10 km broad river valley from the outside shelf zone. This wall was generated during the Older Dryas until the beginning of the Younger Dryas. Its shape was formed by transportation of water and sediment from the Strait of Kerch by a circulating rim current in the Black Sea and water as well as sediment flow of the Danube in direction to the Bosporus. New investigations of the sediments of this river valley were performed by utilizing a Sediment Echo Sounder (SES 2000). This Echo Sounder is a parametric sub-bottom profiler enabling a high resolution sub-bottom analyses. It is capable of penetrating sea beds up to more than 50 m of water depth. The received echo data are real-time processed. The signal amplitudes are valuated in context to a logarithmic scale and graphically visualized by means of a colorized echogram utilizing false colours ranging from red for a high to blue representing a low signal (W.-D. Heinitz et al., 1998). The highest signal (red) is given by the acoustic impedance of the boundary between sea water and river sediment. The echograms of the river valley depict spatially isolated (red) high-signal peaks, which are periodically repeated in vertical direction between the sediment surface and the bottom of the valley. The number of these high-signal parts increase with an increasing valley depth. Studying of the distribution of these peaks allows to draw conclusions regarding the content and composition of the sediment. This prediction of the sediment composition obtained by means of the SES 2000 was successfully verified by analyzing a gravity core taken near Nos Maslen (at 44 m water depth) with a particular focus on the water

  14. Bromide, Chloride, and Sulfate Concentrations and Loads at U.S. Geological Survey Streamflow-Gaging Stations 07331600 Red River at Denison Dam, 07335500 Red River at Arthur City, and 07336820 Red River near DeKalb, Texas, 2007-09

    USGS Publications Warehouse

    Baldys, Stanley; Churchill, Christopher J.; Mobley, Craig A.; Coffman, David K.

    2010-01-01

    The U.S. Geological Survey, in cooperation with the City of Dallas Water Utilities Division, did a study to characterize bromide, chloride, and sulfate concentrations and loads at three U.S. Geological Survey streamflow-gaging stations on the reach of the Red River from Denison Dam, which impounds Lake Texoma, to the U.S. Highway 259 bridge near DeKalb, Texas. Bromide, chloride, and sulfate concentrations and loads were computed for streamflow-gaging stations on the study reach of the Red River. Continuous streamflow and specific conductance data and discrete samples for bromide, chloride, sulfate, and specific conductance were collected at three main-stem streamflow-gaging stations on the Red River: 07331600 Red River at Denison Dam near Denison, Texas (Denison Dam gage), 07335500 Red River at Arthur City, Texas (Arthur City gage), and 07336820 Red River near DeKalb, Texas (DeKalb gage). At each of these streamflow-gaging stations, discrete water-quality data were collected during January 2007-February 2009; continuous water-quality data were collected during March 2007-February 2009. Two periods of high flow resulted from floods during the study; floods during June-July 2007 resulted in elevated flow during June-September 2007 and smaller floods during March-April 2008 resulted in elevated flow during March-April 2008. Bromide, chloride, and sulfate concentrations in samples collected at the three gages decreased downstream. Median bromide concentrations ranged from 0.32 milligram per liter at the Denison Dam gage to 0.19 milligram per liter at the DeKalb gage. Median chloride concentrations ranged from 176 milligrams per liter at the Denison Dam gage to 108 milligrams per liter at the DeKalb gage, less than the 300-milligrams per liter secondary maximum contaminant level established by the Texas Commission on Environmental Quality. Median sulfate concentrations ranged from 213 milligrams per liter at the Denison Dam gage to 117 milligrams per liter at the De

  15. 75 FR 81464 - Safety Zone; Columbia River, The Dalles Lock and Dam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ...-AA00 Safety Zone; Columbia River, The Dalles Lock and Dam AGENCY: Coast Guard, DHS. ACTION: Temporary... Columbia River in the vicinity of The Dalles Lock and Dam while the Army Corps of Engineers completes...; Columbia River, The Dalles Lock and Dam (a) Location. The following is a safety zone: All waters of the...

  16. 78 FR 36658 - Safety Zone; Delaware River Waterfront Corp. Fireworks Display, Delaware River; Camden, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-19

    ... portion of the Delaware River from operating while a fireworks event is taking place. This temporary...-AA00 Safety Zone; Delaware River Waterfront Corp. Fireworks Display, Delaware River; Camden, NJ AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary...

  17. 76 FR 18669 - Safety Zone, Newport River; Morehead City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-05

    ...-AA00 Safety Zone, Newport River; Morehead City, NC AGENCY: Coast Guard, DHS. ACTION: Notice of proposed... River under the main span US 70/Morehead City--Newport River high rise bridge in Carteret County, NC... Newport River at Morehead City, North Carolina. The contract provides for cleaning, painting, and steel...

  18. 76 FR 23227 - Safety Zone, Newport River; Morehead City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-26

    ...-AA00 Safety Zone, Newport River; Morehead City, NC AGENCY: Coast Guard, DHS. ACTION: Notice of proposed... River under the main span US 70/Morehead City--Newport River high rise bridge in Carteret County, NC... Newport River at Morehead City, North Carolina. The contract provides for cleaning, painting, and steel...

  19. Dispersal of suspended sediments in the turbid and highly stratified Red River plume

    NASA Astrophysics Data System (ADS)

    van Maren, D. S.; Hoekstra, P.

    2005-03-01

    The Red River, annually transporting 100 million tons of sediment, flows into a shallow shelf sea where it rapidly deposits most of its sediment on a prograding delta front. Oceanographic cruises were carried out in February-March and July-August 2000 to determine the vertical structure of the Ba Lat river plume and sediment transport patterns on the delta front. The surface waters in the coastal zone were strongly stratified with a low density and high sediment concentration during the larger part of the wet season, caused by low mixing rates of river plumes with ambient water. The river plume is advected to the south by a well-developed coastal current which originates from the river plumes that enter the Gulf of Tonkin North of the Ba Lat and are deflected southward by the Coriolis force. Sediment predominantly leaves the surface plume by settling from suspension and less by mixing of fresh and marine water. A one-dimensional model for plume deposition valid for fair weather conditions indicates that most sediment is deposited within 10 km and southward of the river mouth. Of prime importance for this depositional pattern is the phase relation between river outflow and tidal currents, in combination with the southward surface flow; alongshore advection is very low during outflow of the turbid river plume. The agreement of modeled plume sedimentation patterns with long-term bathymetric changes strongly suggests that fair weather depositional processes determine delta front development. This may be related to the fact that reworking of sediment mainly occurs several months after the peak deposition period; in the meantime sediment compaction and consolidation have increased the shear strength of deposited sediments.

  20. Effect of Rapidly Changing River Stage on Uranium Flux through the Hyporheic Zone

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

    Fritz, Brad G.; Arntzen, Evan V.

    2007-11-01

    At the Hanford Site, the flux of uranium contaminated groundwater into the Columbia River varies according to the dynamic changes in hydraulic gradient caused by fluctuating river stage. The river stage changes in response to operations of dams on the Columbia River. Piezometers were installed in the hyporheic zone to facilitate long term, high frequency measurement of water and uranium fluxes into the Columbia River in response to fluctuating river stage. In addition, measurement of the water level in the near shore unconfined aquifer enhanced the understanding of the relationship between fluctuating river stage and uranium flux. The changing rivermore » stage caused head fluctuations in the unconfined aquifer, and resulted in fluctuating hydraulic gradient in the hyporheic zone. Further, influx of river water into the unconfined aquifer caused reduced uranium concentration in near shore groundwater as a result of dilution. Calculated water flux through the hyporheic zone ranged between 0.3 and -0.5 L/min/m2. The flux of uranium through the hyporheic zone exceeded 30 ug/min/m2 during some time periods, but was generally on the order of 3 to 5 ug/min/m2 over the course of this study. It was also found that at this location, the top 20 cm of the hyporheic zone constituted the most restrictive portion of the aquifer, and controlled the flux of water through the hyporheic zone.« less

  1. Book Review: Greening in the Red Zone

    Treesearch

    Nancy Falxa-Raymond

    2013-01-01

    In the aftermath of a crisis, local, often spontaneous stewardship of nature provides a source of social-ecological resilience to individuals, communities, and ecosystems. This is the concept behind Greening in the Red Zone, and one that may be intuitive to many working in urban forestry, community greening, or any of the local nonprofits or...

  2. New constraints on the structure, thermochronology, and timing of the Ailao Shan-Red River shear zone, SE Asia

    NASA Astrophysics Data System (ADS)

    Leloup, P. H.; Arnaud, N.; Lacassin, R.; Kienast, J. R.; Harrison, T. M.; Trong, T. T. Phan; Replumaz, A.; Tapponnier, P.

    2001-04-01

    New structural, petrographic, and 40Ar/39Ar data constrain the kinematics of the ASRR (Ailao Shan-Red River shear zone). In the XueLong Shan (XLS), geochronological data reveal Triassic, Early Tertiary, and Oligo-Miocene thermal events. The latter event (33-26 Ma) corresponds to cooling during left-lateral shear. In the FanSiPan (FSP) range, thrusting of the SaPa nappe, linked to left-lateral deformation, and cooling of the FSP granite occurred at ≈35 Ma. Rapid cooling resumed at 25-29 Ma as a result of uplift within the transtensive ASRR. In the DayNuiConVoi (DNCV), foliation trends NW-SE, but is deflected near large-scale shear planes. Stretching lineation is nearly horizontal. On steep foliations, shear criteria indicate left-lateral shear sense. Zones with flatter foliations show compatible shear senses. Petrographic data indicate decompression from ≈6.5 kbar during left-lateral shear (temperatures >700°C). 40Ar/39Ar data imply rapid cooling from above 350°C to below 150°C between 25 and 22 Ma without diachronism along strike. Along the whole ASRR cooling histories show two main episodes: (1) rapid cooling from peak metamorphism during left-lateral shear; (2) rapid cooling from greenschist conditions during right-lateral reactivation of the ASRR. In the NW part of the ASRR (XLS, Diancang Shan), we link rapid cooling 1 to local denudations in a transpressive environment. In the SW part (Ailao Shan and DNCV), cooling 1 resulted from regional denudation by zipper-like tectonics in a transtensive regime. The induced cooling diachronism observed in the Ailao Shan suggests left-lateral rates of 4 to 5 cm/yr from 27 Ma until ≈17 Ma. DNCV rocks always stayed in a transtensive regime and do not show cooling diachronism. The similarities of deformation kinematics along the ASRR and in the South China Sea confirms the causal link between continental strike-slip faulting and marginal basin opening.

  3. Effects of Fluctuating River flow on Groundwater/Surface Water Mixing in the Hyporheic Zone of a Regulated, Large Cobble Bed River

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

    Arntzen, Evan V.; Geist, David R.; Dresel, P. Evan

    2006-10-31

    Physicochemical relationships in the boundary zone between groundwater and surface water (i.e., the hyporheic zone) are controlled by surface water hydrology and the hydrogeologic properties of the riverbed. We studied how sediment permeability and river discharge altered the vertical hydraulic gradient (VHG) and water quality of the hyporheic zone within the Hanford Reach of the Columbia River. The Columbia River at Hanford is a large, cobble-bed river where water level fluctuates up to 2 m daily because of hydropower generation. Concomitant with recording river stage, continuous readings were made of water temperature, specific conductance, dissolved oxygen, and water level ofmore » the hyporheic zone. The water level data were used to calculate VHG between the river and hyporheic zone. Sediment permeability was estimated using slug tests conducted in piezometers installed into the river bed. The response of water quality measurements and VHG to surface water fluctuations varied widely among study sites, ranging from no apparent response to co-variance with river discharge. At some sites, a hysteretic relationship between river discharge and VHG was indicated by a time lag in the response of VHG to changes in river stage. The magnitude, rate of change, and hysteresis of the VHG response varied the most at the least permeable location (hydraulic conductivity (K) = 2.9 x 10-4 cms-1), and the least at the most permeable location (K=8.0 x 10-3 cms-1). Our study provides empirical evidence that sediment properties and river discharge both control the water quality of the hyporheic zone. Regulated rivers, like the Columbia River at Hanford, that undergo large, frequent discharge fluctuations represent an ideal environment to study hydrogeologic processes over relatively short time scales (i.e., days to weeks) that would require much longer periods of time to evaluate (i.e., months to years) in un-regulated systems.« less

  4. 75 FR 28769 - Safety Zone; Osage River, Mile 016.8 to 017.2

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-24

    ...-AA00 Safety Zone; Osage River, Mile 016.8 to 017.2 AGENCY: Coast Guard, DHS. ACTION: Notice of proposed... Osage River, Mile 016.8 to 017.2, extending the entire width of the river. This safety zone is needed to... between mile 016.8 and 017.2 on the Osage River. This event presents safety hazards to the navigation of...

  5. Forging the Link: Using a Conservative Mixing Framework to Characterize Connections between Rivers and Great Lakes in River-lake Transition Zones

    EPA Science Inventory

    River-to-Great Lake transition zones are hydrologically, biogeochemically and biologically dynamic areas that regulate nutrient and energy fluxes between rivers and Great Lakes. Our goal is to characterize the biogeochemical properties of the river-lake transition zones and under...

  6. 76 FR 11334 - Safety Zone; Soil Sampling; Chicago River, Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-02

    ...-AA00 Safety Zone; Soil Sampling; Chicago River, Chicago, IL AGENCY: Coast Guard, DHS. ACTION: Temporary... North Branch of the Chicago River due to soil sampling in this area. This temporary safety zone is... soil sampling efforts. DATES: This rule is effective from 7 a.m. on March 1, 2011, until 5 p.m. on...

  7. Red River Flooding in North Dakota

    NASA Image and Video Library

    2017-12-08

    NASA Satellite image acquired March 21, 2010. To see a high res of this image go here: www.flickr.com/photos/gsfc/4455124807/in/photostream/ On March 21, 2010, the Red River crested at 36.99 feet (11.27 meters), according to the National Weather Service. The New York Times reported that the river’s crest was 1 foot (0.3 meters) below predictions and 4 feet (1 meter) below 2009’s record crest. A cold front passing through the area on March 19, 2010, slowed the rate of snowmelt feeding local rivers. That, combined with sandbags and dykes, spared the metropolitan area of Fargo, North Dakota, from serious flooding. North of town, however, agricultural fields and roads flooded. The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured these images of fields north of Fargo on March 21, 2010. The top image uses shortwave infrared light, and the bottom image uses visible light. Muddy waters and fallow fields blend together in the true-color image (bottom), but the false-color image (top) distinguishes better between water and land. Blue indicates water and green indicates vegetation. Fallow fields, bare ground, and paved surfaces appear in shades of brown. Cyan suggests pale water and/or sediment. Wide swaths of blue show large areas of standing water. The Sheyenne, Red, and Buffalo Rivers all flow through the area pictured here. According to The New York Times, flooding in rural areas around Fargo resulted primarily from the Red River’s failure to absorb water from the tributaries feeding it. Much of the standing water apparent in this image occurs around the Sheyenne and Buffalo Rivers. Overflowing tributaries left several inches of standing water in agricultural fields and on highways. About 10 miles (16 kilometers) north of Fargo, flooding forced the closure of Interstate 29. NASA image created by Jesse Allen, using EO-1 ALI data provided courtesy of the NASA EO-1 team and the United States Geological Survey. Caption by Michon Scott

  8. 75 FR 41760 - Safety Zone; Transformers 3 Movie Filming, Chicago River, Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-19

    ...-AA00 Safety Zone; Transformers 3 Movie Filming, Chicago River, Chicago, IL AGENCY: Coast Guard, DHS... vessels from the hazards associated with the filming of the major motion picture, Transformers 3. The... Safety Zone; Transformers 3 Movie Filming, Chicago River, Chicago, IL (a) Location. The safety zone will...

  9. 77 FR 25080 - Safety Zones; TriMet Bridge Project, Willamette River, Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-27

    ...-AA00 Safety Zones; TriMet Bridge Project, Willamette River, Portland, OR AGENCY: Coast Guard, DHS... trestles and construction cranes involved in the construction of the TriMet Bridge on the Willamette River... project. These safety zones replace the prior safety zones established for the TriMet Bridge construction...

  10. 76 FR 53054 - Safety Zone; TriMet Bridge Project, Willamette River; Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-25

    ...-AA00 Safety Zone; TriMet Bridge Project, Willamette River; Portland, OR AGENCY: Coast Guard, DHS... the TriMet Bridge on the Willamette River, in Portland, OR. This action is necessary to ensure the... Zone: TriMet Bridge Project, Willamette River; Portland, OR in the Federal Register (76 FR 86). We...

  11. 77 FR 29901 - Safety Zone; Marysville Days Fireworks, St. Clair River, Marysville, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-21

    ...-AA00 Safety Zone; Marysville Days Fireworks, St. Clair River, Marysville, MI AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on the St. Clair River, Marysville, Michigan. This zone is intended to restrict vessels from a portion of the St...

  12. 33 CFR 165.170 - Safety Zone; Military Munitions Recovery, Raritan River, Raritan, NJ.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone; Military Munitions... § 165.170 Safety Zone; Military Munitions Recovery, Raritan River, Raritan, NJ. (a) Location. The following area is a safety zone: All navigable waters of the Raritan River upstream of the Perth Amboy...

  13. Wetland storage to reduce flood damages in the Red River

    Treesearch

    Steven Shultz

    2000-01-01

    The restoration of previously drained wetlands to store water was not found to be an economically feasible strategy to reduce flood related damages in two sub-watersheds of the Red River Valley (the Maple River Watershed in North Dakota, and the Wild Rice Watershed of Minnesota). Restoring wetlands, while providing full ecological services, was less feasible, even...

  14. 78 FR 39592 - Safety Zone, Tennessee River, Mile 625.5 to 626.5

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ... Zone, Tennessee River, Mile 625.5 to 626.5 AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone for the waters of the Tennessee River beginning at mile marker 625.5 and ending at mile marker 626.5, extending bank to bank. This zone is...

  15. 75 FR 53193 - Safety Zone; Mississippi River, Mile 427.3 to 427.5

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-31

    ... Zone; Mississippi River, Mile 427.3 to 427.5 AGENCY: Coast Guard, DHS. ACTION: Temporary final rule... River, Mile 427.3 to 427.5, extending the entire width of the river. This safety zone is needed to... 5, 2010 the City of Keithsburg will be conducting a fireworks display at mile 427.4 on the Upper...

  16. 75 FR 55973 - Safety Zone; Illinois River, Mile 000.5 to 001.5

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-15

    ...-AA00 Safety Zone; Illinois River, Mile 000.5 to 001.5 AGENCY: Coast Guard, DHS. ACTION: Temporary final... River, Mile 000.5 to 001.5, extending the entire width of the river. This safety zone is needed to... 18, 2010 the City of Grafton will be conducting a land based fireworks display at mile 001.0 on the...

  17. 33 CFR 165.1312 - Security Zone; Portland Rose Festival on Willamette River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zone; Portland Rose Festival on Willamette River. 165.1312 Section 165.1312 Navigation and Navigable Waters COAST GUARD... § 165.1312 Security Zone; Portland Rose Festival on Willamette River. (a) Location. The following area...

  18. 33 CFR 165.1312 - Security Zone; Portland Rose Festival on Willamette River.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Portland Rose Festival on Willamette River. 165.1312 Section 165.1312 Navigation and Navigable Waters COAST GUARD... § 165.1312 Security Zone; Portland Rose Festival on Willamette River. (a) Location. The following area...

  19. 78 FR 6209 - Safety Zone; Grain-Shipment Vessels, Columbia and Willamette Rivers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-30

    ... 1625-AA00 Safety Zone; Grain-Shipment Vessels, Columbia and Willamette Rivers AGENCY: Coast Guard, DHS... temporary safety zone around all inbound and outbound grain-shipment vessels involved in commerce with the Columbia Grain facility on the Willamette River in Portland, OR, the United Grain Corporation facility on...

  20. 33 CFR 165.T09-0124 - Safety Zone; St. Louis River, Tallas Island, Duluth, MN.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; St. Louis River... § 165.T09-0124 Safety Zone; St. Louis River, Tallas Island, Duluth, MN. (a) Location. The following area is a temporary safety zone: near Tallas Island on the St. Louis River to include all waters contained...

  1. An Old-Growth Definition for Red River Bottom Forests in the Eastern United States

    Treesearch

    Ted Shear; Mike Young; Robert Kellison

    1997-01-01

    Our goal was to develop a description of old-growth red river bottom forests of the Southeastern United States. We compared the characteristics of forests described in the scientific literature and forests we examined to various published criteria for old-growth condition. Because red rivers are a relatively new landscape feature (most 250 years old, resulting from...

  2. 77 FR 40800 - Safety Zone: Sacramento River Closure for Aerial Cable Installation, Sacramento, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ...-AA00 Safety Zone: Sacramento River Closure for Aerial Cable Installation, Sacramento, CA AGENCY: Coast... zone in the navigable waters of the Sacramento River near Sherman Island, CA in support of the...; Sacramento River Closure for Aerial Cable Installation, Sacramento, CA. (a) Location. This temporary safety...

  3. 78 FR 34258 - Safety Zone; Salvage Operations at Marseilles Dam; Illinois River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-07

    ...-AA00 Safety Zone; Salvage Operations at Marseilles Dam; Illinois River AGENCY: Coast Guard, DHS. ACTION... Illinois River starting at Mile Marker 246.9 and extending 600 yards upstream of the Marseilles Dam to Mile... repair efforts at the Marseilles Dam. This safety zone is necessary to protect the general public...

  4. Red Cedar Invasion Along the Missouri River, South Dakota: Cause and Consequence

    NASA Astrophysics Data System (ADS)

    Greene, S.; Knox, J. C.

    2012-12-01

    This research evaluates drivers of and ecosystem response to red cedar (Juniperus virginiana) invasion of riparian surfaces downstream of Gavin's Point Dam on the Missouri River. Gavin's Point Dam changed the downstream geomorphology and hydrology of the river and its floodplain by reducing scouring floods and flood-deposited sediment. The native cottonwood species (Populus deltoides) favors cleared surfaces with little to no competitors to establish. Now that there are infrequent erosive floods along the riparian surfaces to remove competitor seeds and seedlings, other vegetation is able to establish. Red cedar is invading the understory of established cottonwood stands and post-dam riparian surfaces. To assess reasons and spatial patterns for the recent invasion of red cedar, a stratified random sampling of soil, tree density and frequency by species, and tree age of 14 forest stands was undertaken along 59 river kilometers of riparian habitat. Soil particle size was determined using laser diffraction and tree ages were estimated from ring counts of tree cores. As an indicator of ecosystem response to invasion, we measured organic matter content in soil collected beneath red cedar and cottonwood trees at three different depths. Of 565 red cedars, only two trees were established before the dam was built. We applied a multiple regression model of red cedar density as a function of cottonwood density and percent sand (63-1000 microns in diameter) in StatPlus© statistical software. Cottonwood density and percent sand are strongly correlated with invasion of red cedar along various riparian surfaces (n = 59, R2 = 0.42, p-values < 0.05). No significant differences exist between organic matter content of soil beneath red cedar and cottonwood trees (p-value > 0.05 for all depths). These findings suggest that the dam's minimization of downstream high-stage flows opened up new habitat for red cedar to establish. Fluvial geomorphic surfaces reflect soil type and cottonwood

  5. 77 FR 42642 - Safety Zone; City of Ogdensburg Fireworks, St. Lawrence River, Ogdensburg, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-20

    ...-AA00 Safety Zone; City of Ogdensburg Fireworks, St. Lawrence River, Ogdensburg, NY AGENCY: Coast Guard... the St. Lawrence River, Ogdensburg, NY. This safety zone is intended to restrict vessels from a portion of the St. Lawrence River during the City of Ogdensburg Fireworks display. This temporary safety...

  6. 76 FR 20532 - Safety Zone; Boom Days, Niagara River, Niagara Falls, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-13

    ...-AA00 Safety Zone; Boom Days, Niagara River, Niagara Falls, NY AGENCY: Coast Guard, DHS. ACTION..., Niagara Falls, NY for the Boom Days Fireworks. This zone is intended to restrict vessels from La Salle Marina and a portion of the Niagara River, Niagara Falls, NY during the Boom Days Fireworks on April 16...

  7. 78 FR 46810 - Safety Zone; Motion Picture Filming; Chicago River; Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-02

    ...-AA00 Safety Zone; Motion Picture Filming; Chicago River; Chicago, IL AGENCY: Coast Guard, DHS. ACTION... portion of the Chicago River due to the filming of a motion picture. These temporary safety zones are..., rigging, and other hazards involved in the filming of a motion picture. DATES: This rule will be enforced...

  8. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  9. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  10. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  11. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  12. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  13. 33 CFR 165.720 - Safety/Security Zone: St. Johns River, Jacksonville, FL.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety/Security Zone: St. Johns... § 165.720 Safety/Security Zone: St. Johns River, Jacksonville, FL. (a) Location. The water and the land..., within 100 yards of the St. Johns River. (3) All waters within 200 yards of any specified military supply...

  14. [Temporal and spatial distribution of red tide in Yangtze River Estuary and adjacent waters].

    PubMed

    Liu, Lu-San; Li, Zi-Cheng; Zhou, Juan; Zheng, Bing-Hui; Tang, Jing-Liang

    2011-09-01

    The events of red tide were collected in Yangtze River Estuary and adjacent waters from 1972 to 2009. Based on geographic information system (GIS) analysis on the temporal and spatial distribution of red tide, the distribution map was generated accordingly. The results show: (1) There are three red tide-prone areas, which are outside the Yangtze River estuary and the eastern of Sheshan, Huaniaoshan-Shengshan-Gouqi, Zhoushan and the eastern of Zhujiajian. The red tide occurred 174 times in total, in which there were 25 times covered the area was larger than 1 000 km2. After 2000, the frequency of red tide were significantly increasing; (2) The frequent occurrence of red tide was in May (51% of total occurrence) and June (20% of total occurrence); (3) In all of the red tide plankton, the dominant species were Prorocentrum danghaiense, Skeletonema costatum, Prorocentrum dantatum, Nactiluca scientillans. The red tides caused by these species were 38, 35, 15, 10 times separately.

  15. 33 CFR 165.512 - Safety Zone; Patapsco River, Northwest and Inner Harbors, Baltimore, MD.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; Patapsco River... Guard District § 165.512 Safety Zone; Patapsco River, Northwest and Inner Harbors, Baltimore, MD. (a... towing vessels. (b) Location. The following area is a moving safety zone: All waters, from surface to...

  16. Effect of rapidly changing river stage on uranium flux through the hyporheic zone.

    PubMed

    Fritz, Brad G; Arntzen, Evan V

    2007-01-01

    Measurement of ground water/surface water interaction within the hyporheic zone is increasingly recognized as an important aspect of subsurface contaminant fate and transport. Understanding the interaction between ground water and surface water is critical in developing a complete conceptual model of contaminant transport through the hyporheic zone. At the Hanford Site near Richland, Washington, ground water contaminated with uranium discharges to the Columbia River through the hyporheic zone. Ground water flux varies according to changes in hydraulic gradient caused by fluctuating river stage, which changes in response to operation of dams on the Columbia River. Piezometers and continuous water quality monitoring probes were installed in the hyporheic zone to provide long-term, high-frequency measurement of hydraulic gradient and estimated uranium concentrations. Subsequently, the flux of water and uranium was calculated for each half-hour time period over a 15-month study period. In addition, measurement of water levels in the near-shore unconfined aquifer enhanced the understanding of the relationship between river stage, aquifer elevation, and uranium flux. Changing river stage resulted in fluctuating hydraulic gradient within the hyporheic zone. Further, influx of river water caused lower uranium concentrations as a result of dilution. The methods employed in this study provide a better understanding of the interaction between surface and ground water in a situation with a dynamically varying vertical hydraulic gradient and illustrate how the combination of relatively standard methods can be used to derive an accurate estimation of water and contaminant flux through the hyporheic zone.

  17. 76 FR 34862 - Safety Zone; M/V DAVY CROCKETT, Columbia River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-15

    ...-AA00 Safety Zone; M/V DAVY CROCKETT, Columbia River AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The U.S. Coast Guard is extending the enforcement of a safety zone established on the... original safety zone was established on January 28, 2011. The safety zone is necessary to help ensure the...

  18. 77 FR 38488 - Safety Zone; Alexandria Bay Chamber of Commerce, St. Lawrence River, Alexandria Bay, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ... 1625-AA00 Safety Zone; Alexandria Bay Chamber of Commerce, St. Lawrence River, Alexandria Bay, NY... temporary safety zone on the St. Lawrence River, Alexandria Bay, New York. This safety zone is intended to restrict vessels from a portion of the St. Lawrence River during the Alexandria Bay Chamber of Commerce...

  19. 78 FR 6782 - Safety Zone-Chelsea River, Boston Inner Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-31

    ...-AA00 Safety Zone--Chelsea River, Boston Inner Harbor, Boston, MA AGENCY: Coast Guard, DHS. ACTION....120, Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. This advance notice allows the Coast... Commercial Street, Boston, MA 02109: March 6, 2013, from 11:00 a.m. to 12:00 p.m.; April 24, 2013, from 11:00...

  20. 77 FR 40518 - Swim Events in the Captain of the Port New York Zone; Hudson River, East River, Upper New York...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ... 1625-AA00 Swim Events in the Captain of the Port New York Zone; Hudson River, East River, Upper New York Bay, Lower New York Bay; New York, NY ACTION: Final rule. SUMMARY: The Coast Guard is establishing seven temporary safety zones for swim events within the Captain of the Port (COTP) New York Zone. These...

  1. 77 FR 27116 - Safety Zone, Naval Helicopter Association Reunion Helicopter Demonstration, Elizabeth River...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-09

    ...-AA00 Safety Zone, Naval Helicopter Association Reunion Helicopter Demonstration, Elizabeth River... establishing a temporary safety zone on the Elizabeth River in the vicinity of Norfolk, VA to support the Naval... of life on navigable waters during the Naval Helicopter Association Reunion Helicopter Demonstration...

  2. 77 FR 38486 - Safety Zone; City of Tonawanda July 4th Celebration, Niagara River, Tonawanda, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ... 1625-AA00 Safety Zone; City of Tonawanda July 4th Celebration, Niagara River, Tonawanda, NY AGENCY... safety zone on the Niagara River, Tonawanda, New York. This safety zone is intended to restrict vessels from a portion of the Niagara River during the City of Tonawanda July 4th Celebration fireworks on July...

  3. 77 FR 70964 - Security Zone, Potomac and Anacostia Rivers; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-28

    ... 1625-AA87 Security Zone, Potomac and Anacostia Rivers; Washington, DC AGENCY: Coast Guard, DHS. ACTION... to establish a security zone during activities associated with the Presidential Inauguration in... extends the southern boundary of the proposed security zone. This rule prohibits vessels and people from...

  4. 75 FR 27641 - Safety Zone; Marathon Oil Refinery Construction, Rouge River, Detroit, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-18

    ...-AA00 Safety Zone; Marathon Oil Refinery Construction, Rouge River, Detroit, MI AGENCY: Coast Guard, DHS... River during the Marathon Oil Refinery Construction project. This temporary safety zone is necessary to... personnel during the setup and offloading of equipment in conjunction with the Marathon Oil Refinery...

  5. 77 FR 43167 - Safety Zone; Electric Zoo Fireworks, East River, Randall's Island, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-24

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket Number USCG-2012-0588] RIN 1625-AA00 Safety Zone; Electric Zoo Fireworks, East River, Randall's Island, NY AGENCY: Coast Guard... Zone; Electronic Zoo Fireworks, East River, Randall's Island, NY. (a) Regulated Area. The following...

  6. 33 CFR 165.T13-175 - Safety Zone; M/V DAVY CROCKETT, Columbia River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone; M/V DAVY CROCKETT....T13-175 Safety Zone; M/V DAVY CROCKETT, Columbia River. (a) Location: The following area is a safety zone: (1) All waters of the Columbia River encompassed within the following four points: point one at...

  7. 76 FR 49664 - Safety Zone; M/V DAVY CROCKETT, Columbia River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-11

    ...-AA00 Safety Zone; M/V DAVY CROCKETT, Columbia River AGENCY: Coast Guard, DHS. ACTION: Temporary final... waters of the Columbia River surrounding the M/ V DAVY CROCKETT at approximate river mile 117. The... operations involving the M/ V DAVY CROCKETT. All persons and vessels are prohibited from entering or...

  8. 76 FR 33643 - Safety Zone; Nicole Cerrito Birthday Fireworks, Detroit River, Detroit, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-09

    ...-AA00 Safety Zone; Nicole Cerrito Birthday Fireworks, Detroit River, Detroit, MI AGENCY: Coast Guard... Detroit River during the Nicole Cerrito Birthday Fireworks. This temporary safety zone is necessary to... hazards associated with maritime fireworks displays. Under 5 U.S.C. 553(d)(3), the Coast Guard finds that...

  9. 78 FR 15293 - Safety Zone; St. Patrick's Day Fireworks; Manitowoc River, Manitowoc, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-11

    ...-AA00 Safety Zone; St. Patrick's Day Fireworks; Manitowoc River, Manitowoc, WI AGENCY: Coast Guard, DHS... will hold its annual St. Patrick's Day fireworks display. This fireworks display will be launched from... as follows: Sec. 165.T09-0116 Safety Zone; St. Patrick's Day Fireworks; Manitowoc River, Manitowoc...

  10. 75 FR 51377 - Safety Zone; Thunder on Niagara, Niagara River, North Tonawanda, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-20

    ...-AA00 Safety Zone; Thunder on Niagara, Niagara River, North Tonawanda, NY AGENCY: Coast Guard, DHS... Niagara River during the Thunder on Niagara powerboat races. This safety zone is necessary to protect... ensure the safety of spectators and vessels during the Thunder on Niagara powerboat races. This rule is...

  11. 1997 flood tracking chart for the Red River of the North basin

    USGS Publications Warehouse

    Wiche, G.J.; Martin, C.R.; Albright, L.L.; Wald, Geraldine B.

    1997-01-01

    The flood tracking chart for the Red River of the North Basin can be used by local citizens and emergency response personnel to determine the latest river stage. By comparing the current stage (water-surface elevation above some datum) and predicted flood crest to the recorded peak stages of previous floods, emergency response personnel and residents can make informed decisions concerning the threat to life and property. The flood tracking chart shows a map of the basin with the location of major real-time streamflow-gaging stations in the basin. Click on a station in the map or in the list below the map. Streamflow and stage information for the last 7 days, current stage relative to recorded peak stages, and streamflow for the previous 18 months are provided in graphic form, along with information such as station location and length of record. The National Weather Service has direct access to all information collected by the USGS for use in their forecasting models and routinely broadcasts the forecast information to the news media and on shortwave radio. The radio frequencies are 162.400 MHz (megahertz) in Petersburg, N. Dak., and Detroit Lakes, Minn.; 162.425 MHz in Webster, N. Dak., and Bemidji, Minn.; 162.450 MHz in Roosevelt, Minn.; 162.475 MHz in Grand Forks and Amenia, N. Dak.; and 162.550 MHz in Thief River Falls, Minn. To use the flood tracking chart for a particular property, determine the approximate elevation of the threatened property and the elevation of the gaging station that is closest to the threatened property. For example, most people in Grand Forks, N. Dak., probably will use the Red River of the North at Grand Forks station. Record the flood elevation for the gaging station. Compare the flood elevation to the elevation of the property to immediately know if the property has an impending threat of flooding. One must be cautioned by the fact that the surface of flowing water is not flat but has a slope. Therefore, the water-surface elevation

  12. River gain and loss studies for the Red River of the North Basin, North Dakota and Minnesota

    USGS Publications Warehouse

    Williams-Sether, Tara

    2004-01-01

    The Dakota Water Resources Act passed by the U.S. Congress in 2000 authorized the Secretary of the Interior to conduct a comprehensive study of future water-quantity and -quality needs of the Red River of the North (Red River) Basin in North Dakota and of possible options to meet those water needs.  To obtain the river gain and loss information needed to properly account for available streamflow within the basin, available river gain and loss studies for the Sheyenne, Turtle, Forest, and Park Rivers in North Dakota and the Wild Rice, Sand Hill, Clearwater, South Branch Buffalo, and Otter Tail Rivers in Minnesota were reviewed.  Ground-water discharges for the Sheyenne River in a reach between Lisbon and Kindred, N. Dak., were about 28.8 cubic feet per second in 1963 and about 45.0 cubic feet per second in 1986.  Estimated monthly net evaporation losses for additional flows to the Sheyenne River from the Missouri River ranged from 1.4 cubic feet per second in 1963 to 51.0 cubic feet per second in 1976.  Maximum water losses for a reach between Harvey and West Fargo, N. Dak., for 1956-96 ranged from about 161 cubic feet per second for 1976 to about 248 cubic feet per second for 1977.  Streamflow gains of 1 to 1.5 cubic feet per second per mile were estimated for the Wild Rice, Sand Hill, and Clearwater Rivers in Minnesota.  The average ground-water discharge for a 5.2-mile reach of the Otter Tail River in Minnesota was about 14.1 cubic feet per second in August 1994.  The same reach lost about 14.1 cubic feet per second between February 1994 and June 1994 and about 21.2 cubic feet per second between August 1994 and August 1995.

  13. Streamflow losses along the Balcones Fault Zone, Nueces River basin, Texas

    USGS Publications Warehouse

    Land, L.F.; Boning, C.W.; Harmsen, Lynn; Reeves, R.D.

    1983-01-01

    Statistical evaluations of historical daily flow records for the streams that have gaging stations upstream and downstream from the recharge zone provided mathematical relationships that expressed downstream flow in terms of other significant parameters. For each stream, flow entering the recharge zone is most significant in defining downstream flow; for some streams, antecedent flows at the upstream site and ground-water levels are also significantly related to downstream flow. The analyses also determined the discharges required upstream from the recharge zone to sustain flow downstream from that zone. These discharges ranged from 355 cubic feet per second for the combined Frio and Dry Frio Rivers to 33 cubic feet per second for the Nueces River. The entire flows of lesser magnitude are generally lost to recharge to the aquifer.

  14. Habitat preferences of foraging red-cockaded woodpeckers at the Savannah River Site, South Carolina.

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

    Franzreb, Kathleen, E.

    2004-12-31

    Franzreb, Kathleen, E. 2004. Habitat preferences of foraging red-cockaded woodpeckers at the Savannah River Site, South Carolina. In: Red-cockaded woodpecker; Road to Recovery. Proceedings of the 4th Red-cockaded woodpecker Symposium. Ralph Costa and Susan J. Daniels, eds. Savannah, Georgia. January, 2003. Chapter 9. Habitat Management and Habitat Relationships. Pp 553-561. Abstract: I constructed a foraging study to examine habitat use of red-cockaded woodpeckers at the Savannah River Site, South Carolina. Because much of the land had been harvested in the late 1940s and early 1950s prior to being sold to the Department of Energy, the available habitat largely consisted ofmore » younger trees (e.g., less than 40 years old). From 1992 to 1995, I examined the foraging behavior and reproductive success of 7 groups of red-cockaded woodpeckers.« less

  15. Nitrogen dynamics in a tidal river zone influenced by highly urbanization, western Japan

    NASA Astrophysics Data System (ADS)

    Saito, M.; Onodera, S. I.; Shimizu, Y.; Maruyama, Y.; Jin, G.; Aritomi, D.

    2014-12-01

    Tidal river and estuary are the transition zone between freshwater and seawater with high biological production. These areas have characteristics of water level fluctuation which causes surface water-groundwater interaction and the associated change in dynamics of nitrogen. Generally in coastal megacities, severe groundwater depression and high contaminants load influence on the environment of tidal river. However, these effects on the nitrogen dynamics and its load from a river to sea have not been fully evaluated in previous studies. Therefore, we aimed to clarify the characteristics of the nitrogen dynamics with the surface water-groundwater interaction in the tidal river zone of Osaka metropolitan city, western Japan. We conducted the field survey from the river mouth to the 7km upstream area of Yamato River, which has a length of 68km and a watershed area of 1,070 km2. Spatial variations in radon (222Rn) concentrations and the difference of hydraulic potential between river waters and the pore waters suggest that the groundwater discharges to the river channel in the upstream area. In contrast, the river water recharged into the groundwater near the river mouth area. It may be caused by the lowering of groundwater level associated with the excess abstraction in the urban area. The spatial and temporal variations in nutrient concentration indicate that nitrate-nitrogen (NO3-N) concentration changed temporally and it was negatively correlated with dissolved organic nitrogen (DON) concentration. Based on the mass balance estimation in winter and summer periods, nitrogen was removed in tidal river zone in both periods which was estimated to be about 10 % of total nitrogen (TN) load from the upstream. However, dissolved inorganic nitrogen (DIN) and DON was re-produced in winter and summer periods, respectively. NO3-N concentrations were negatively correlated with velocity of river water, which suggests the progress of denitrification in the tidal river zone under

  16. 76 FR 51885 - Safety Zone; Thunder on Niagara, Niagara River, North Tonawanda, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-19

    ...-AA00 Safety Zone; Thunder on Niagara, Niagara River, North Tonawanda, NY AGENCY: Coast Guard, DHS... the Niagara River during the Thunder on Niagara powerboat races. This temporary safety zone is.... Background and Purpose On August 20th and 21st of 2011, the Thunder on Niagara powerboat races will be held...

  17. 76 FR 25278 - Safety Zone; TriMet Bridge Project, Willamette River; Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-04

    ...-AA00 Safety Zone; TriMet Bridge Project, Willamette River; Portland, OR AGENCY: Coast Guard, DHS... safety zone during the construction of the TriMet Bridge on the Willamette River, in Portland, OR. This..., will be starting construction of the new Portland-Milwaukie Light Rail Bridge on July 1, 2011 (with in...

  18. 75 FR 61354 - Safety Zone; Interstate 5 Bridge Repairs, Columbia River, Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-05

    ...-AA00 Safety Zone; Interstate 5 Bridge Repairs, Columbia River, Portland, OR AGENCY: Coast Guard, DHS... waters of the Columbia River due to repairs being made to the Interstate 5 Bridge. The safety zone is... would be contrary to public interest since the repairs to the Interstate 5 Bridge would be completed by...

  19. 75 FR 18755 - Security Zone; Calcasieu River and Ship Channel, LA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-13

    ...-AA87 Security Zone; Calcasieu River and Ship Channel, LA AGENCY: Coast Guard, DHS. ACTION: Final rule. SUMMARY: The Coast Guard is disestablishing the permanent safety zone at Trunkline LNG in Lake Charles, LA and replacing it with a security zone with new boundaries. The Coast Guard is also establishing two...

  20. Forecasting changes in water quality in rivers associated with growing biofuels in the Arkansas-White-Red river drainage, USA

    DOE PAGES

    Jager, Henriette I.; Baskaran, Latha M.; Schweizer, Peter E.; ...

    2014-05-15

    We study that the mid-section of the Arkansas-White-Red (AWR) river basin near the 100 th parallel is particularly promising for sustainable biomass production using cellulosic perennial crops and residues. Along this longitudinal band, precipitation becomes limiting to competing crops that require irrigation from an increasingly depleted groundwater aquifer. In addition, the deep-rooted perennial, switchgrass, produces modest-to-high yields in this region with minimal inputs and could compete against alternative crops and land uses at relatively low cost. Previous studies have also suggested that switchgrass and other perennial feedstocks offer environmentally benign alternatives to corn and corn stover. However, water quality implicationsmore » remain a significant concern for conversion of marginal lands to bioenergy production because excess nutrients produced by agriculture for food or for energy contribute to eutrophication in the dead-zone in the Gulf of Mexico. This study addresses water quality implications for the AWR river basin. We used the SWAT model to compare water quality in rivers draining a baseline, pre-cellulosic-bioenergy and post-cellulosic-bioenergy landscapes for 2022 and 2030. Simulated water quality responses varied across the region, but with a net tendency toward decreased amounts of nutrient and sediment, particularly in subbasins with large areas of bioenergy crops in 2030 future scenarios. We conclude that water quality is one aspect of sustainability for which cellulosic bioenergy production in this region holds promise.« less

  1. Reconnaissance of mercury in lakes, wetlands, and rivers in the Red River of the North Basin, North Dakota, March through August 2001

    USGS Publications Warehouse

    Sando, Steven K.; Wiche, G.J.; Lundgren, R.F.; Sether, Bradley A.

    2003-01-01

    Devils Lake rose dramatically during the 1990's, causing extensive flood damages. Because of the potential for continued flooding, the U.S. Army Corps of Engineers has been conducting studies to evaluate the feasibility of constructing and operating an outlet from Devils Lake. The occurrence of mercury in lakes, wetlands, and rivers and the potential for increased loading of mercury into the Sheyenne River as a result of a Devils Lake outlet needed to be evaluated as part of the studies.Sixteen lake, wetland, and river sites in the Devils Lake, Sheyenne River, Red River of the North, and Red Lake River Basins were sampled and analyzed for mercury constituents and other selected properties and constituents relevant to mercury aquatic chemistry. For the lake and wetland sites, whole-water methylmercury concentrations ranged from less than 0.04 to 3.53 nanograms per liter and whole-water total mercury concentrations ranged from 0.38 to 7.02 nanograms per liter. Conditions favorable for methylation of mercury generally exist at the lake and wetland sites, as indicated by larger dissolved methylmercury concentrations in near-bottom samples than in near-surface samples and by relatively large ratios of methylmercury to total mercury (generally greater than 10 percent for the summer sampling period). Total mercury concentrations were larger for the summer sampling period than for the winter sampling period for all lake and wetland sites. A wetland site in the upper Devils Lake Basin had the largest mercury concentrations for the lake and wetland sites.For the river sites, whole-water methylmercury concentrations ranged from 0.15 to 1.13 nanograms per liter and whole-water total mercury concentrations ranged from 2.00 to 26.90 nanograms per liter. Most of the mercury for the river sites occurred in particulate inorganic phase. Summer ratios of whole-water methylmercury to whole-water total mercury were 35 percent for Starkweather Coulee (a wetland-dominated site), near or

  2. 77 FR 39404 - Safety Zone; Wicomico Community Fireworks Rain Date, Great Wicomico River, Mila, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-03

    ...-AA00 Safety Zone; Wicomico Community Fireworks Rain Date, Great Wicomico River, Mila, VA AGENCY: Coast... zone on the Great Wicomico River in the vicinity of Mila, VA in support of the Wicomico Community Rain... as follows: Sec. 165.T05-0425 Safety Zone; Wicomico Community Fireworks Rain Date, Great Wicomico...

  3. Constituent loads and flow-weighted average concentrations for major subbasins of the upper Red River of the North Basin, 1997-99

    USGS Publications Warehouse

    Sether, Bradley A.; Berkas, Wayne R.; Vecchia, Aldo V.

    2004-01-01

    Data were collected at 11 water-quality sampling sites in the upper Red River of the North (Red River) Basin from May 1997 through September 1999 to describe the water-quality characteristics of the upper Red River and to estimate constituent loads and flow-weighted average concentrations for major tributaries of the Red River upstream from the bridge crossing the Red River at Perley, Minn. Samples collected from the sites were analyzed for 5-day biochemical oxygen demand, bacteria, dissolved solids, nutrients, and suspended sediment.Concentration data indicated the median concentrations for most constituents and sampling sites during the study period were less than existing North Dakota and Minnesota standards or guidelines. However, more than 25 percent of the samples for the Red River at Perley, Minn., site had fecal coliform concentrations that were greater than 200 colonies per 100 milliliters, indicating an abundance of pathogens in the upper Red River Basin. Although total nitrite plus nitrate concentrations generally increased in a downstream direction, the median concentrations for all sites were less than the North Dakota suggested guideline of 1.0 milligram per liter. Total and dissolved phosphorus concentrations also generally increased in a downstream direction, but, for those constituents, the median concentrations for most sampling sites exceeded the North Dakota suggested guideline of 0.1 milligram per liter.For dissolved solids, nutrients, and suspended sediments, a relation between constituent concentration and streamflow was determined using the data collected during the study period. The relation was determined by a multiple regression model in which concentration was the dependent variable and streamflow was the primary explanatory variable. The regression model was used to compute unbiased estimates of annual loads for each constituent and for each of eight primary water-quality sampling sites and to compute the degree of uncertainty

  4. 76 FR 21253 - Safety Zone; M/V DAVY CROCKETT, Columbia River

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-15

    ...-AA00 Safety Zone; M/V DAVY CROCKETT, Columbia River AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The U.S. Coast Guard is extending and expanding the emergency safety zone established on... January 28, 2011. The safety zone is necessary to help ensure the safety of the response workers and...

  5. 77 FR 36394 - Safety Zone for Fireworks Display, Potomac River, National Harbor Access Channel; Oxon Hill, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-19

    ... 1625-AA00 Safety Zone for Fireworks Display, Potomac River, National Harbor Access Channel; Oxon Hill... safety zone upon specified waters of the Potomac River. This action is necessary to provide for the... zone is intended to protect the maritime public in a portion of the Potomac River. DATES: This rule is...

  6. 33 CFR 165.902 - Niagara River at Niagara Falls, New York-safety zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., New York-safety zone. 165.902 Section 165.902 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... § 165.902 Niagara River at Niagara Falls, New York—safety zone. (a) The following is a safety zone—The... Falls, New York to a line drawn across the Niagara River from the downstream side of the mouth of Gill...

  7. 75 FR 24402 - Safety Zone; St. Louis River, Tallas Island, Duluth, MN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-05

    ...-AA00 Safety Zone; St. Louis River, Tallas Island, Duluth, MN AGENCY: Coast Guard, DHS. ACTION... Island area of the St. Louis River, Duluth, Minnesota. All vessels are prohibited from transiting the... potential threat associated with the dredging project beginning at Tallas Island, St. Louis River. The...

  8. 77 FR 49351 - Safety Zone; Port Huron Float-Down, St. Clair River, Port Huron, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-16

    ...-AA00 Safety Zone; Port Huron Float-Down, St. Clair River, Port Huron, MI AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on the St. Clair River, Port Huron, MI. This zone is intended to restrict vessels from a portion of the St. Clair...

  9. 75 FR 24799 - Safety Zone; Tri-City Water Follies Hydroplane Races Practice Sessions, Columbia River, Kennewick...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-06

    ...-AA00 Safety Zone; Tri-City Water Follies Hydroplane Races Practice Sessions, Columbia River, Kennewick...-City Water Follies Association hosts annual hydroplane races on the Columbia River in Kennewick... Safety Zone; Tri-City Water Follies Hydroplane Races Practice Sessions, Columbia River, Kennewick, WA (a...

  10. 76 FR 75450 - Safety Zone; Container Crane Relocation, Cooper and Wando Rivers, Charleston, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-02

    ...-AA00 Safety Zone; Container Crane Relocation, Cooper and Wando Rivers, Charleston, SC AGENCY: Coast... moving safety zone around a barge transporting two container cranes on the Cooper and Wando Rivers during... from hazards associated with transporting the large cranes by barge. Persons and vessels are prohibited...

  11. DEM Simulated Results And Seismic Interpretation of the Red River Fault Displacements in Vietnam

    NASA Astrophysics Data System (ADS)

    Bui, H. T.; Yamada, Y.; Matsuoka, T.

    2005-12-01

    The Song Hong basin is the largest Tertiary sedimentary basin in Viet Nam. Its onset is approximately 32 Ma ago since the left-lateral displacement of the Red River Fault commenced. Many researches on structures, formation and tectonic evolution of the Song Hong basin have been carried out for a long time but there are still remained some problems that needed to put into continuous discussion such as: magnitude of the displacements, magnitude of movement along the faults, the time of tectonic inversion and right lateral displacement. Especially the mechanism of the Song Hong basin formation is still in controversy with many different hypotheses due to the activation of the Red River fault. In this paper PFC2D based on the Distinct Element Method (DEM) was used to simulate the development of the Red River fault system that controlled the development of the Song Hong basin from the onshore to the elongated portion offshore area. The numerical results show the different parts of the stress field such as compress field, non-stress field, pull-apart field of the dynamic mechanism along the Red River fault in the onshore area. This propagation to the offshore area is partitioned into two main branch faults that are corresponding to the Song Chay and Song Lo fault systems and said to restrain the east and west flanks of the Song Hong basin. The simulation of the Red River motion also showed well the left lateral displacement since its onset. Though it is the first time the DEM method was applied to study the deformation and geodynamic evolution of the Song Hong basin, the results showed reliably applied into the structural configuration evaluation of the Song Hong basin.

  12. 78 FR 39608 - Safety Zone; Summer in the City Water Ski Show; Fox River, Green Bay, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ...-AA00 Safety Zone; Summer in the City Water Ski Show; Fox River, Green Bay, WI AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on the Fox River in Green Bay, WI. This safety zone is intended to restrict vessels from a portion of the Fox River...

  13. 78 FR 48085 - Safety Zones; Chelsea River, Boston Inner Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-07

    ...-AA00 Safety Zones; Chelsea River, Boston Inner Harbor, Boston, MA AGENCY: Coast Guard, DHS. ACTION... for the Chelsea River, Boston Inner Harbor, Boston, MA. Since the implementation of the regulation... spanned the Chelsea River providing a means for vehicles to travel between Chelsea, MA and East Boston, MA...

  14. 77 FR 74587 - Safety Zone; Grain-Shipment Vessels, Columbia and Willamette Rivers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-17

    ... 1625-AA00 Safety Zone; Grain-Shipment Vessels, Columbia and Willamette Rivers AGENCY: Coast Guard, DHS... inbound and outbound grain-shipment vessels involved in commerce with the Columbia Grain facility on the Willamette River in Portland, OR, and the United Grain Corporation facility on the Columbia River in...

  15. 77 FR 42640 - Safety Zone; Can-Am Festival Fireworks, Black River Bay, Sackets Harbor, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-20

    ...-AA00 Safety Zone; Can-Am Festival Fireworks, Black River Bay, Sackets Harbor, NY AGENCY: Coast Guard... Black River Bay during the Can-Am Festival Fireworks display. This temporary safety zone is necessary to... Can-Am Festival Fireworks. This zone will be effective and enforced from 9:15 p.m. until 10:45 p.m. on...

  16. NASA Satellite Images Annual Spring Thaw, Red River, North Dakota

    NASA Image and Video Library

    2011-04-21

    NASA Terra spacecraft shows the annual spring thaw in the upper Midwest is underway. Snow-covered ground contrasts with the dark tones of water under broken cloud cover. Along the Red River in North Dakota, floodwaters are moving northward into Canada.

  17. Porous media of the Red River Formation, Williston Basin, North Dakota: a possible Sedimentary Enhanced Geothermal System

    NASA Astrophysics Data System (ADS)

    Hartig, Caitlin M.

    2018-01-01

    Fracture-stimulated enhanced geothermal systems (EGS) can be developed in both crystalline rocks and sedimentary basins. The Red River Formation (Ordovician) is a viable site for development of a sedimentary EGS (SEGS) because the formation temperatures exceed 140 °C and the permeability is 0.1-38 mD; fracture stimulation can be utilized to improve permeability. The spatial variations of the properties of the Red River Formation were analyzed across the study area in order to understand the distribution of subsurface formation temperatures. Maps of the properties of the Red River Formation-including depth to the top of the formation, depth to the bottom of the formation, porosity, geothermal gradient, heat flow, and temperature-were produced by the Kriging interpolation method in ArcGIS. In the future, these results may be utilized to create a reservoir simulation model of an SEGS in the Red River Formation; the purpose of this model would be to ascertain the thermal response of the reservoir to fracture stimulation.

  18. 78 FR 57261 - Safety Zone; Grain-Shipment and Grain-Shipment Assist Vessels, Columbia and Willamette Rivers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-18

    ... 1625-AA00 Safety Zone; Grain-Shipment and Grain-Shipment Assist Vessels, Columbia and Willamette Rivers... temporary safety zone around all inbound and outbound grain-shipment and grain-shipment assist vessels... Columbia and Willamette Rivers and their tributaries. For grain- shipment vessels, this safety zone extends...

  19. 78 FR 49684 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-15

    ...-AA00 Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago... the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago... the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago...

  20. 78 FR 49921 - Safety Zone; Thunder on the Niagara, Niagara River, North Tonawanda, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-16

    ... 1625-AA00 Safety Zone; Thunder on the Niagara, Niagara River, North Tonawanda, NY AGENCY: Coast Guard... portion of the Niagara River during the Thunder on the Niagara hydroplane race. This temporary safety zone... to ensure the safety of spectators and vessels during the Thunder on the Niagara hydroplane race...

  1. 75 FR 62320 - Safety Zone; Fireworks for USS GRAVELY Commissioning Ceremony, Cape Fear River, Wilmington, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-08

    ...-AA00 Safety Zone; Fireworks for USS GRAVELY Commissioning Ceremony, Cape Fear River, Wilmington, NC... zone on the navigable waters of Cape Fear River in Wilmington, NC in support of the Fireworks for the... western shore of the Cape Fear River at Battleship Park. The fireworks debris fallout area will extend...

  2. 76 FR 78820 - Safety Zone; City of Beaufort's Tricentennial New Year's Eve Fireworks Display, Beaufort River...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-20

    ...-AA00 Safety Zone; City of Beaufort's Tricentennial New Year's Eve Fireworks Display, Beaufort River... establishing a temporary safety zone on the Beaufort River, in Beaufort, South Carolina, during the City of... Carolina. The fireworks will be launched from a barge, which will be located on the Beaufort River. The...

  3. 77 FR 65478 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-29

    ...-AA00 Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago... the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago... segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River...

  4. 77 FR 60044 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-02

    ...-AA00 Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago... the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago... segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River...

  5. Soil Gas Dynamics and Microbial Activity in the Unsaturated Zone of a Regulated River

    NASA Astrophysics Data System (ADS)

    Christensen, H.; Ferencz, S. B.; Cardenas, M. B.; Neilson, B. T.; Bennett, P. C.

    2017-12-01

    Over 60% of the world's rivers are dammed, and are therefore regulated. In some river systems, river regulation is the dominant factor governing fluid exchange and soil gas dynamics in the hyporheic region and overlying unsaturated zone of the river banks. Where this is the case, it is important to understand the effects that an artificially-induced change in river stage can have on the chemical, plant, and microbial components of the unsaturated zone. Daily releases from an upstream dam cause rapid stage fluctuations in the Lower Colorado River east of Austin, Texas. For this study, we utilized an array of water and gas wells along a transect perpendicular to the river to investigate the biogeochemical process occurring in this mixing zone. The gas wells were installed at several depths up to 1.5 meters, and facilitated the continuous monitoring of soil gases as the pulse percolated through the river bank. Water samples collected from the screened wells penetrated to depths below the water table and were analyzed for nutrients, carbon, and major ions. Additionally, two soil cores were taken at different distances from the river and analyzed for soil moisture and grain size. These cores were also analyzed for microbial activity using the total heterotroph count method and the acetylene inhibition technique, a sensitive method of measuring denitrifying activity. The results provide a detailed picture of soil gas flux and biogeochemical processes in the bank environment in a regulated river. Findings indicate that a river pulse that causes a meter-scale change in river stage causes small, centimeter-scale pulses in the water table. We propose that these conditions create an area of elevated microbial respiration at the base of the unsaturated zone that appears to be decoupled from normal diurnal fluctuations. Along the transect, CO2 concentrations increased with increasing depth down to the water table. CO2 concentrations were highest in the time following a pulse

  6. 33 CFR 165.530 - Safety Zone: Cape Fear and Northeast Cape Fear Rivers, NC.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Northeast Cape Fear Rivers, NC. 165.530 Section 165.530 Navigation and Navigable Waters COAST GUARD... § 165.530 Safety Zone: Cape Fear and Northeast Cape Fear Rivers, NC. (a) Location. The following area is a moving safety zone during the specified conditions: The waters of the Cape Fear and Northeast Cape...

  7. 76 FR 62301 - Safety Zone; Rotary Club of Fort Lauderdale New River Raft Race, New River, Fort Lauderdale, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-07

    ...-AA00 Safety Zone; Rotary Club of Fort Lauderdale New River Raft Race, New River, Fort Lauderdale, FL... Fort Lauderdale, Florida during the Rotary Club of Fort Lauderdale New River Raft Race. The race is... safety of race participants, participant vessels, spectators, and the general public during the 550 yard...

  8. Surface-water quality assessment of the North Fork Red River basin upstream from Lake Altus, Oklahoma, 2002

    USGS Publications Warehouse

    Smith, S. Jerrod; Schneider, M.L.; Masoner, J.R.; Blazs, R.L.

    2003-01-01

    Elevated salinity in the North Fork Red River is a major concern of the Bureau of Reclamation W. C. Austin Project at Lake Altus. Understanding the relation between surface-water runoff, ground-water discharge, and surface-water quality is important for maintaining the beneficial use of water in the North Fork Red River basin. Agricultural practices, petroleum production, and natural dissolution of salt-bearing bedrock have the potential to influence the quality of nearby surface water. The U.S. Geological Survey, in cooperation with the Bureau of Reclamation, sampled stream discharge and water chemistry at 19 stations on the North Fork Red River and tributaries. To characterize surface-water resources of the basin in a systematic manner, samples were collected synoptically during receding streamflow conditions during July 8-11, 2002. Together, sulfate and chloride usually constitute greater than half of the dissolved solids. Concentrations of sulfate ranged from 87.1 to 3,450 milligrams per liter. The minimum value was measured at McClellan Creek near Back (07301220), and the maximum value was measured at Bronco Creek near Twitty (07301303). Concentrations of chloride ranged from 33.2 to 786 milligrams per liter. The minimum value was measured at a North Fork Red River tributary (unnamed) near Twitty (07301310), and the maximum value was measured at the North Fork Red River near Back (07301190), the most upstream sample station.

  9. Red River Flooding in North Dakota (high res)

    NASA Image and Video Library

    2017-12-08

    NASA Satellite image acquired March 21, 2010. To see a high res more detail of this image go here: www.flickr.com/photos/gsfc/4455125023/in/photostream/ On March 21, 2010, the Red River crested at 36.99 feet (11.27 meters), according to the National Weather Service. The New York Times reported that the river’s crest was 1 foot (0.3 meters) below predictions and 4 feet (1 meter) below 2009’s record crest. A cold front passing through the area on March 19, 2010, slowed the rate of snowmelt feeding local rivers. That, combined with sandbags and dykes, spared the metropolitan area of Fargo, North Dakota, from serious flooding. North of town, however, agricultural fields and roads flooded. The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured these images of fields north of Fargo on March 21, 2010. The top image uses shortwave infrared light, and the bottom image uses visible light. Muddy waters and fallow fields blend together in the true-color image (bottom), but the false-color image (top) distinguishes better between water and land. Blue indicates water and green indicates vegetation. Fallow fields, bare ground, and paved surfaces appear in shades of brown. Cyan suggests pale water and/or sediment. Wide swaths of blue show large areas of standing water. The Sheyenne, Red, and Buffalo Rivers all flow through the area pictured here. According to The New York Times, flooding in rural areas around Fargo resulted primarily from the Red River’s failure to absorb water from the tributaries feeding it. Much of the standing water apparent in this image occurs around the Sheyenne and Buffalo Rivers. Overflowing tributaries left several inches of standing water in agricultural fields and on highways. About 10 miles (16 kilometers) north of Fargo, flooding forced the closure of Interstate 29. NASA image created by Jesse Allen, using EO-1 ALI data provided courtesy of the NASA EO-1 team and the United States Geological Survey. Caption by

  10. Final Environmental Impact Statement. Upper and Lower Red Lakes. Operation and Maintenance Activities, Red Lake River Basin, Minnesota.

    DTIC Science & Technology

    1975-03-01

    Smith, Jr. 1971. Annual Catch of Yellow Perch from Red Lakes, Minnesota, in Relation to Growth Rate and Fishing Effort. University of Minnesota...forest... The stream borders become marshy... growths of wild rice.., muskrats and ducks, muddy game trails between r water and woods... Hardwood forest...the Reservation itself, the Red Lake River drained what was then-so far as I could see from the canoe--real wilderness...There were heavy growths of

  11. 77 FR 30242 - Safety Zone; City of Tonawanda July 4th Celebration, Niagara River, Tonawanda, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-22

    ...-AA00 Safety Zone; City of Tonawanda July 4th Celebration, Niagara River, Tonawanda, NY AGENCY: Coast... vessels from a portion of the Niagara River during the City of Tonawanda July 4th Celebration fireworks... read as follows: Sec. 165.T09-0352 Safety Zone; City of Tonawanda July 4th Celebration, Niagara River...

  12. 77 FR 34285 - Safety Zone; 2012 Ironman U.S. Championship Swim, Hudson River, Fort Lee, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-11

    ...-AA00 Safety Zone; 2012 Ironman U.S. Championship Swim, Hudson River, Fort Lee, NJ AGENCY: Coast Guard... safety zone on the navigable waters of the Hudson River in the vicinity of Englewood Cliffs and Fort Lee... the Hudson River in the vicinity of Englewood Cliffs and Fort Lee, New Jersey. This swim event poses...

  13. 78 FR 13811 - Safety Zone; Underwater Escape Event, Seaport, East River, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-01

    ... York Zone on the specified date and time. This action is necessary to ensure the safety of participants... Coast Guard will enforce the safety zone listed in 33 CFR 165.160 on the specified date and time as... Zone; Underwater Escape Event, Seaport, East River, NY AGENCY: Coast Guard, DHS. ACTION: Notice of...

  14. Magnetic minerals in three Asian rivers draining into the South China Sea: Pearl, Red, and Mekong Rivers

    NASA Astrophysics Data System (ADS)

    Kissel, Catherine; Liu, Zhifei; Li, Jinhua; Wandres, Camille

    2016-05-01

    The use of the marine sedimentary magnetic properties, as tracers for changes in precipitation rate and in oceanic water masses transport and exchanges, implies to identify and to characterize the different sources of the detrital fraction. This is of particular importance in closed and/or marginal seas such as the South China Sea. We report on the magnetic properties of sedimentary samples collected in three main Asian rivers draining into the South China Sea: the Pearl, Red, and Mekong Rivers. The geological formations as well as the present climatic conditions are different from one catchment to another. The entire set of performed magnetic analyses (low-field magnetic susceptibility, ARM acquisition and decay, IRM acquisition and decay, back-field acquisition, thermal demagnetization of three-axes IRM, hysteresis parameters, FORC diagrams, and low-temperature magnetic measurements) allow us to identify the magnetic mineralogy and the grain-size distribution when magnetite is dominant. Some degree of variability is observed in each basin, illustrating different parent rocks and degree of weathering. On average it appears that the Pearl River is rich in magnetite along the main stream while the Mekong River is rich in hematite. The Red River is a mixture of the two. Compared to clay mineral assemblages and major element contents previously determined on the same samples, these new findings indicate that the magnetic fraction brings complementary information of great interest for environmental reconstructions based on marine sediments from the South China Sea.

  15. 78 FR 46258 - Safety Zone; Upper Mississippi River, Mile 662.8 to 663.9

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-31

    ...-AA00 Safety Zone; Upper Mississippi River, Mile 662.8 to 663.9 AGENCY: Coast Guard, DHS. ACTION... Upper Mississippi River, from mile 662.8 to 663.9, extending the entire width of the river. This safety... mile 662.8 to 663.9 on the Upper Mississippi River. Anticipated traffic on the river presents safety...

  16. Analysis of change of red tide species in Yodo River estuary by the numerical ecosystem model.

    PubMed

    Hayashi, Mitsuru; Yanagi, Tetsuo

    2008-01-01

    Occurrence number of red tides in Osaka Bay in Japan is more than 20 cases every year. Diatom red tide was dominant in Osaka Bay, but the non-diatom red tide was dominant in early 1990s. Therefore, the material cycling in Yodo River estuary in Osaka Bay during August from 1991 to 2000 was analyzed by using the numerical ecosystem model and field observation data to clarify the reasons of change in red tide species. Year-to-year variation in calculated concentration ratio of diatom to non-diatom corresponds to the variation in observed ratio of red tide days of diatom to non-diatom. Limiting nutrient of primary production is phosphate over the period. Diatom dominated from 1991 to 1993, but it was difficult for non-diatom to grow due to the limitation by physical condition. Non-diatom was able to grow because of good physical and nutrient conditions from 1994 to 1996. And diatom dominated again under the good physical condition, and phosphorus supply was not enough for non-diatom to grow from 1998 to 2000. Phosphate concentration in the lower layer of Yodo River estuary was important to the variation in red tide species in the upper layer of Yodo River estuary.

  17. Sediment budget as affected by construction of a sequence of dams in the lower Red River, Viet Nam

    NASA Astrophysics Data System (ADS)

    Lu, Xi Xi; Oeurng, Chantha; Le, Thi Phuong Quynh; Thuy, Duong Thi

    2015-11-01

    Dam construction is one of the main factors resulting in riverine sediment changes, which in turn cause river degradation or aggradation downstream. The main objective of this work is to examine the sediment budget affected by a sequence of dams constructed upstream in the lower reach of the Red River. The study is based on the longer-term annual data (1960-2010) with a complementary daily water and sediment data set (2008-2010). The results showed that the stretch of the river changed from sediment surplus (suggesting possible deposition processes) into sediment deficit (possible erosion processes) after the first dam (Thac Ba Dam) was constructed in 1972 and changed back to deposition after the second dam (Hoa Binh Dam) was constructed in 1985. The annual sediment deposition varied between 1.9 Mt/y and 46.7 Mt/y with an annual mean value of 22.9 Mt/y (1985-2010). The sediment deposition at the lower reach of the Red River would accelerate river aggradation which would change river channel capacity in the downstream of the Red River. The depositional processes could be sustained or changed back to erosional processes after more dams (the amount of sediment deposit was much less after the latest two dams Tuyen Quang Dam in 2009 and Sonla Dam in 2010) are constructed, depending on the water and sediment dynamics. This study revealed that the erosional and depositional processes could be shifted for the same stretch of river as affected by a sequence of dams and provides useful insights in river management in order to reduce flood frequency along the lower reach of the Red River.

  18. Questa Baseline and Pre-Mining Ground-Water Quality Investigation. 25. Summary of Results and Baseline and Pre-Mining Ground-Water Geochemistry, Red River Valley, Taos County, New Mexico, 2001-2005

    USGS Publications Warehouse

    Nordstrom, D. Kirk

    2008-01-01

    -sediment chemistry; geomorphology and its effect on ground-water flow; geophysical studies on depth to ground-water table and depth to bedrock; bedrock fractures and their potential influence on ground-water flow; leaching studies of scars and waste-rock piles; mineralogy and mineral chemistry and their effect on ground-water quality; debris-flow hazards; hydrology and water balance for the Red River Valley; ground-water geochemistry of selected wells undisturbed by mining in the Red River Valley; and quality assurance and quality control of water analyses. Studies aimed specifically at the Straight Creek natural-analog site include electrical surveys; high-resolution seismic survey; age-dating with tritium/helium; water budget; ground-water hydrology and geochemistry; and comparison of mineralogy and lithology to that of the mine site. The highly mineralized and hydrothermally altered volcanic rocks of the Red River Valley contain several percent pyrite in the quartz-sericite-pyrite (QSP) alteration zone, which weather naturally to acid-sulfate surface and ground waters that discharge to the Red River. Weathering of waste-rock piles containing pyrite also contributes acid water that eventually discharges into the Red River. These acid discharges are neutralized by circumneutral-pH, carbonate-buffered surface and ground waters of the Red River. The buffering capacity of the Red River, however, decreases from the town of Red River to the U.S. Geological Survey (USGS) gaging station near Questa. During short, but intense, storm events, the buffering capacity is exceeded and the river becomes acid from the rapid flushing of acidic materials from natural scar areas. The lithology, mineralogy, elevation, and hydrology of the Straight Creek proximal analog site were found to closely approximate those of the mine site with the exception of the mine site?s Sulphur Gulch catchment. Sulphur Gulch contains three subcatchments?upper Sulphur Gulch, Blind Gulch, and Spring Gulc

  19. 77 FR 49730 - Safety Zone; Antique Boat Show, Niagara River, Grand Island, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-17

    ...-AA00 Safety Zone; Antique Boat Show, Niagara River, Grand Island, NY AGENCY: Coast Guard, DHS. ACTION... during the Antique Boat Show powerboat races. This safety zone is necessary to protect spectators..., 2012, we published a notice of proposed rulemaking entitled Safety Zone; Antique Boat Show, Niagara...

  20. 75 FR 73962 - Safety Zone; Bridge Demolition; Illinois River, Seneca, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-30

    ...-AA00 Safety Zone; Bridge Demolition; Illinois River, Seneca, IL AGENCY: Coast Guard, DHS. ACTION... due to the demolition of the Seneca Highway Bridge. This temporary safety zone is necessary to protect... Highway Bridge. DATES: This rule is effective in the CFR on November 30, 2010 through 6 a.m. on December...

  1. 75 FR 3372 - Safety Zone: Congress Street Bridge, Pequonnock River, Bridgeport, CT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-21

    ...-AA00 Safety Zone: Congress Street Bridge, Pequonnock River, Bridgeport, CT AGENCY: Coast Guard, DHS... waters surrounding the Congress Street Bridge over the Pequonnock River in Bridgeport, Connecticut. This... and equipment that are being utilized for partial demolition of the Congress Street Bridge. Entry into...

  2. 33 CFR 165.162 - Safety Zone: New York Super Boat Race, Hudson River, New York.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone: New York Super Boat Race, Hudson River, New York. 165.162 Section 165.162 Navigation and Navigable Waters COAST GUARD... § 165.162 Safety Zone: New York Super Boat Race, Hudson River, New York. (a) Regulated area. The...

  3. 77 FR 41271 - Safety Zone; Newburgh to Beacon Swim, Newburgh, Hudson River, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-13

    ... 1625-AA00 Safety Zone; Newburgh to Beacon Swim, Newburgh, Hudson River, NY AGENCY: Coast Guard, DHS... navigable waters of the Hudson River, NY in the vicinity of Newburgh, NY for the annual Newburgh Beacon Swim... hazards associated with swimmers competing in a swim across the Hudson River. Persons and vessels are...

  4. 75 FR 9370 - Safety Zone; AVI May Fireworks Display, Colorado River, Laughlin, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-02

    ...-AA00 Safety Zone; AVI May Fireworks Display, Colorado River, Laughlin, NV AGENCY: Coast Guard, DHS... waters of the lower Colorado River, Laughlin, NV, in support of a fireworks display near the AVI Resort... navigable waters of the Lower Colorado River in support of a fireworks show near Laughlin, NV. The fireworks...

  5. 77 FR 42179 - Safety Zone; Fireworks Display, Potomac River, Charles County, Newburg, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-18

    ...]30[sec] W, located at Newburg in Charles County, Maryland (NAD 1983). The temporary safety zone will... 1625-AA00 Safety Zone; Fireworks Display, Potomac River, Charles County, Newburg, MD AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard will establish a safety zone upon...

  6. 77 FR 74777 - Safety Zones; Grain-Shipment Assistance Vessels; Columbia and Willamette Rivers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-18

    ... 1625-AA00 Safety Zones; Grain-Shipment Assistance Vessels; Columbia and Willamette Rivers AGENCY: Coast... temporary safety zones around the following four vessels: the motor vessel Daniel Foss, IMO 7638454, the... Connor Foss, Official 1238813. These safety zones apply while these vessels are located on the waters of...

  7. Interseismic Deformation along the Red River Fault from InSAR Measurements

    NASA Astrophysics Data System (ADS)

    Chen, J.; Li, Z.; Clarke, P. J.

    2017-12-01

    The Red River Fault (RRF) zone is a profound geological discontinuity separating South China from Indochina. Right lateral movements along this >900 km fault are considered to accommodate the extrusion of SE China. Crustal deformation monitoring at high resolution is the key to understand the present-day mode of deformation in this zone and its interaction with the adjacent regions. This is the first study to measure the interseismic deformation of the entire fault with ALOS-1/2 and Sentinel-1 observations. Nine ascending tracks of ALOS-1 data between 2007 and 2011 are collected from the Alaska Satellite Facility (ASF), four descending tracks of Sentinel-1 data are acquired every 24 days since October 2014, and ALOS-2 data are being systematically acquired since 2014. The long wavelength (L-band) of ALOS-1/2 and short temporal baseline of Sentinel-1 ensure good coherence to overcome the limitations of heavy vegetation and variable climate in the region. Stacks of interferograms are generated by our automatic processing chain based on the InSAR Scientific Computing Environment (ISCE) software, ionospheric errors are estimated and corrected using the split-spectrum method (Fattahi et al., IEEE Trans. Geosci. Remote Sens., 2017) and the tropospheric delays are calibrated using the Generic Atmospheric Correction Online Service for InSAR (GACOS: http://ceg-research.ncl.ac.uk/v2/gacos) with high-resolution ECMWF products (Yu et al., J. Geophys. Res., 2017). Time series analysis is performed to determine the interseismic deformation rate of the RRF using the in-house InSAR time series with atmospheric estimation model (InSAR TS + AEM) package based on the Small Baseline Subset (SBAS) algorithm. Our results reveal the decrease of slip rate from north to south. We map the interseismic strain rate field to characterize the deformation patterns and seismic hazard throughout the RRF zone.

  8. Oscillating brittle and viscous behavior through the earthquake cycle in the Red River Shear Zone: Monitoring flips between reaction and textural softening and hardening

    NASA Astrophysics Data System (ADS)

    Wintsch, Robert P.; Yeh, Meng-Wan

    2013-03-01

    Microstructures associated with cataclasites and mylonites in the Red River shear zone in the Diancang Shan block, Yunnan Province, China show evidence for both reaction hardening and softening at lower greenschist facies metamorphic conditions. The earliest fault-rocks derived from Triassic porphyritic orthogneiss protoliths are cataclasites. Brittle fractures and crushed grains are cemented by newly precipitated quartz. These cataclasites are subsequently overprinted by mylonitic fabrics. Truncations and embayments of relic feldspars and biotites show that these protolith minerals have been dissolved and incompletely replaced by muscovite, chlorite, and quartz. Both K-feldspar and plagioclase porphyroclasts are truncated by muscovite alone, suggesting locally metasomatic reactions of the form: 3K-feldspar + 2H+ = muscovite + 6SiO2(aq) + 2K+. Such reactions produce muscovite folia and fish, and quartz bands and ribbons. Muscovite and quartz are much weaker than the reactant feldspars and these reactions result in reaction softening. Moreover, the muscovite tends to align in contiguous bands that constitute textural softening. These mineral and textural modifications occurred at constant temperature and drove the transition from brittle to viscous deformation and the shift in deformation mechanism from cataclasis to dissolution-precipitation and reaction creep. These mylonitic rocks so produced are cut by K-feldspar veins that interrupt the mylonitic fabric. The veins add K-feldspar to the assemblage and these structures constitute both reaction and textural hardening. Finally these veins are boudinaged by continued viscous deformation in the mylonitic matrix, thus defining a late ductile strain event. Together these overprinting textures and microstructures demonstrate several oscillations between brittle and viscous deformation, all at lower greenschist facies conditions where only frictional behavior is predicted by experiments. The overlap of the depths of

  9. 78 FR 58882 - Safety Zone; Chelsea River, Boston Inner Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-25

    ...-AA00 Safety Zone; Chelsea River, Boston Inner Harbor, Boston, MA AGENCY: Coast Guard, DHS. ACTION...: Chelsea River, Boston Inner Harbor, Boston, MA. Since the implementation of the regulation, physical... Chelsea, MA and East Boston, MA. Several petroleum-product transfer facilities are located on the Chelsea...

  10. 33 CFR 100.T05-0443 - Safety Zone; Fireworks Display, Delaware River, New Hope, PA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Delaware River, New Hope, PA. 100.T05-0443 Section 100.T05-0443 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY REGATTAS AND MARINE PARADES SAFETY OF LIFE ON NAVIGABLE WATERS § 100.T05-0443 Safety Zone; Fireworks Display, Delaware River, New Hope, PA. (a) Location. The safety zone will restrict...

  11. A study of ecological red-line area partitioning in the Chishui River Basin in Guizhou

    NASA Astrophysics Data System (ADS)

    Yang, S. F.; An, Y. L.

    2016-08-01

    Maintaining ecosystem balance and realizing the strategic goal of sustainable development are key objectives in the field of environmental sciences. Accordingly, drawing ecological red lines in sensitive and vulnerable environmental areas and important ecological function areas, determining the distribution range of ecological red-line areas, providing scientific guidance for developmental activities, and effectively managing the ecological environment are significant work tasks supported by policy guidance from the State Council and from knowledge gained in educational circles. Taking the Chishui River Basin in Guizhou as the study object, this research selected water and soil loss sensitivity, as well as assessments of karst rocky desertification sensitivity as background assessments of the eco-environment. Furthermore, the functions of soil conservation, water conservation, and biodiversity protection were integrated with exploitation-prohibited areas, and an organic combination of ecological needs and social service functions was created. Spatial comprehensive overlay analysis and processing revealed that the combination marked nine major ecological red-line areas in a total area of 5,030.58 km2, which occupied 44.16% of the total basin area. By combining the current eco-environmental situation of the Chishui River Basin with the marked out red-line areas, this research proposed corresponding ecological red-line area management suggestions. These suggestions are expected to provide a scientific foundation for eco-environmental protection and subsequent scientific research in Chishui River Basin.

  12. 77 FR 44544 - Safety Zone; Gilmerton Bridge Center Span Float-In, Elizabeth River; Norfolk, Portsmouth, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-30

    ...-AA00 Safety Zone; Gilmerton Bridge Center Span Float-In, Elizabeth River; Norfolk, Portsmouth, and... withdrawing its proposed rule concerning the Gilmerton Bridge Center Span Float-in and bridge construction of... ``Safety Zone; Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and Chesapeake...

  13. Assessment of selected water-quality data collected in the lower Red River (main stem) basin, Texas, 1997-98

    USGS Publications Warehouse

    Baldys, Stanley; Hamilton, Danna K.

    2003-01-01

    The Texas part of the Red River Basin has been divided into five reaches or subbasins (fig. 1) to facilitate improved planning, monitoring, geographical analysis, and dissemination of information. The U.S. Geological Survey (USGS), in cooperation with the Red River Authority of Texas, is studying the five subbasins, each for a period of about 1 year. Baldys and Phillips (1998) discuss various components and the associated scope of study of each of the five reaches. Data from the first reach studied—reach 2, the Wichita River Basin—were presented in a fact sheet by Baldys and Phillips (2000). This fact sheet presents an assessment of data collected at 11 sites during 1997–98 for reach 1—the lower Red River (main stem) Basin from the confluence of Cache Creek downstream to the Texas-Arkansas State Line (fig. 1).

  14. 76 FR 36316 - Safety Zone; Upper Mississippi River, Mile 180.0 to 179.0

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-22

    ...-AA00 Safety Zone; Upper Mississippi River, Mile 180.0 to 179.0 AGENCY: Coast Guard, DHS. ACTION... Upper Mississippi River, from Mile 180.0 to 179.0, extending the entire width of the river. This safety... combat capabilities between Mile 180.0 and 179.0 on the Upper Mississippi River. This event presents...

  15. 33 CFR 165.902 - Niagara River at Niagara Falls, New York-safety zone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Niagara River at Niagara Falls... § 165.902 Niagara River at Niagara Falls, New York—safety zone. (a) The following is a safety zone—The United States waters of the Niagara River from the crest of the American and Horseshoe Falls, Niagara...

  16. 33 CFR 165.902 - Niagara River at Niagara Falls, New York-safety zone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Niagara River at Niagara Falls... § 165.902 Niagara River at Niagara Falls, New York—safety zone. (a) The following is a safety zone—The United States waters of the Niagara River from the crest of the American and Horseshoe Falls, Niagara...

  17. 33 CFR 165.902 - Niagara River at Niagara Falls, New York-safety zone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Niagara River at Niagara Falls... § 165.902 Niagara River at Niagara Falls, New York—safety zone. (a) The following is a safety zone—The United States waters of the Niagara River from the crest of the American and Horseshoe Falls, Niagara...

  18. 33 CFR 165.902 - Niagara River at Niagara Falls, New York-safety zone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Niagara River at Niagara Falls... § 165.902 Niagara River at Niagara Falls, New York—safety zone. (a) The following is a safety zone—The United States waters of the Niagara River from the crest of the American and Horseshoe Falls, Niagara...

  19. Water-use data for the Red River of the North Basin, North Dakota, Minnesota, and South Dakota, 1979-2001

    USGS Publications Warehouse

    Macek-Rowland, Kathleen M.; Arntson, Allan D.; Ryberg, Karen R.; Dahl, Ann L.; Lieb, Amy

    2004-01-01

    The Red River of the North, located in the north-central plains of the United States, plays an important role in population growth and economic development of the region. Because of recent and projected growth in population, industry, and agriculture in the Red River of the North Basin, alternatives to additional water resources will be needed to supplement future water needs. Past and current water-use data are needed to help select the most viable water-resource alternatives. Withdrawal and return flow data were collected from various sources throughout the Red River of the North Basin from 1979 through 2001. The withdrawal data were aggregated by subbasin, monthly totals, and water-use categories. The return flow data were aggregated by subbasin and monthly totals. The Red River of the North Basin was divided into subbasins based on locations of U.S. Geological Survey streamflow-gaging stations and by specifically-identified reaches. Results of the water-use compilation are provided in this report.

  20. 78 FR 38577 - Special Local Regulations; Red Bull Flugtag National Harbor Event, Potomac River; National Harbor...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-27

    ...-AA08 Special Local Regulations; Red Bull Flugtag National Harbor Event, Potomac River; National Harbor... waters of the Potomac River on September 21, 2013. These special local regulations are necessary to... temporarily restrict vessel traffic in a portion of the Potomac River during the event. DATES: This rule is...

  1. 76 FR 58108 - Safety Zone; Ryder Cup Captain's Duel Golf Shot, Chicago River, Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-20

    ...-AA00 Safety Zone; Ryder Cup Captain's Duel Golf Shot, Chicago River, Chicago, IL AGENCY: Coast Guard... Ryder Cup Captain's Duel Golf Shot event takes place on the Chicago River near Chicago, Illinois from 4... reasons: the safety zone will only be in effect for one hour on a single day and vessels will be allowed...

  2. 78 FR 4331 - Safety Zone; Sellwood Bridge Move; Willamette River, Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-22

    ... 1625-AA00 Safety Zone; Sellwood Bridge Move; Willamette River, Portland, OR AGENCY: Coast Guard, DHS... the Sellwood Bridge, located on the Willamette River in Portland, Oregon, while it is being relocated 66 feet downriver as part of the new Sellwood Bridge construction project. This action is necessary...

  3. Questa baseline and pre-mining ground-water quality investigation. 21. Hydrology and water balance of the Red River basin, New Mexico 1930-2004

    USGS Publications Warehouse

    Naus, Cheryl A.; McAda, Douglas P.; Myers, Nathan C.

    2006-01-01

    A study of the hydrology of the Red River Basin of northern New Mexico, including development of a pre- mining water balance, contributes to a greater understanding of processes affecting the flow and chemistry of water in the Red River and its alluvial aquifer. Estimates of mean annual precipitation for the Red River Basin ranged from 22.32 to 25.19 inches. Estimates of evapotranspiration for the Red River Basin ranged from 15.02 to 22.45 inches or 63.23 to 94.49 percent of mean annual precipitation. Mean annual yield from the Red River Basin estimated using regression equations ranged from 45.26 to 51.57 cubic feet per second. Mean annual yield from the Red River Basin estimated by subtracting evapotranspiration from mean annual precipitation ranged from 55.58 to 93.15 cubic feet per second. In comparison, naturalized 1930-2004 mean annual streamflow at the Red River near Questa gage was 48.9 cubic feet per second. Although estimates developed using regression equations appear to be a good representation of yield from the Red River Basin as a whole, the methods that consider evapotranspiration may more accurately represent yield from smaller basins that have a substantial amount of sparsely vegetated scar area. Hydrograph separation using the HYSEP computer program indicated that subsurface flow for 1930-2004 ranged from 76 to 94 percent of streamflow for individual years with a mean of 87 percent of streamflow. By using a chloride mass-balance method, ground-water recharge was estimated to range from 7 to 17 percent of mean annual precipitation for water samples from wells in Capulin Canyon and the Hansen, Hottentot, La Bobita, and Straight Creek Basins and was 21 percent of mean annual precipitation for water samples from the Red River. Comparisons of mean annual basin yield and measured streamflow indicate that streamflow does not consistently increase as cumulative estimated mean annual basin yield increases. Comparisons of estimated mean annual yield and

  4. 75 FR 55272 - Safety Zone; Mississippi River, Mile 212.0 to 214.5

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-10

    ...-AA00 Safety Zone; Mississippi River, Mile 212.0 to 214.5 AGENCY: Coast Guard, DHS. ACTION: Temporary... Mississippi River, Mile 212.0 to 214.5, extending West of Portage Island to the right descending bank of the... based fireworks display between mile 212.0 to 214.5 on the Upper Mississippi River. This event presents...

  5. 77 FR 15009 - Safety Zones; Sellwood Bridge Project, Willamette River; Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ...-AA00 Safety Zones; Sellwood Bridge Project, Willamette River; Portland, OR AGENCY: Coast Guard, DHS... zones to remain in effect throughout the duration of the construction and renewal of the Sellwood Bridge... safe distance from the construction area while transiting in the vicinity of the Sellwood Bridge...

  6. Mathematical modelling for distribution of heavy metals in estuary area of Red River (Vietnam)

    NASA Astrophysics Data System (ADS)

    Nguyen, N. T. T.; Volkova, I. V.

    2018-05-01

    In this paper, the authors studied the features of spatial distribution of some heavy metals (Pb, Hg, As) in the system “suspended substance - bottom sediments” in the mouth area of the Red River (Vietnam). A mathematical modelling for diffusion processes of heavy metals in a suspended form, in bottom sediments and the spatial analysis for the results of these models were proposed and implemented. The studies were carried out during main hydrological seasons of 2014 - 2016 (during the flood and inter-natal periods). The propagation of heavy metals was modeled by solving the equation of turbulent diffusion. A spatial analysis of the content of heavy metals in the suspended form and in the bottom sediments was implemented by using the interpolation model in ArcGIS 10.2.2. The distribution of Pb, Hg, As concentration of the suspended form and bottom sediment phases in the estuary area of the Red River was characterized by maximum in the mouths of the branches and general decreasing gradient towards the sea. Maximum concentrations of Pb, Hg in suspended forms were observed in the surface layer of water at the river-sea barrier. The content of Hg and As in the estuary region of the Red River was observed in the following order: SSsurf< SSbott< BS; and content of Pb – SS >BS.

  7. 78 FR 18274 - Special Local Regulations; Red Bull Flugtag National Harbor Event, Potomac River; National Harbor...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-26

    ...-AA08 Special Local Regulations; Red Bull Flugtag National Harbor Event, Potomac River; National Harbor... event,'' to be held on the waters of the Potomac River on September 21, 2013. These special local... representative. This action is intended to temporarily restrict vessel traffic in a portion of the Potomac River...

  8. Questa baseline and pre-mining ground-water quality investigation. 10. Geologic influences on ground and surface waters in the lower Red River watershed, New Mexico

    USGS Publications Warehouse

    Ludington, Steve; Plumlee, Geoff; Caine, Jonathan S.; Bove, Dana; Holloway, JoAnn; Livo, Eric

    2005-01-01

    Introduction: This report is one in a series that presents results of an interdisciplinary U.S. Geological Survey (USGS) study of ground-water quality in the lower Red River watershed prior to open-pit and underground molybdenite mining at Molycorp's Questa mine. The stretch of the Red River watershed that extends from just upstream of the town of Red River, N. Mex., to just above the town of Questa includes several mineralized areas in addition to the one mined by Molycorp. Natural erosion and weathering of pyrite-rich rocks in the mineralized areas has created a series of erosional scars along this stretch of the Red River that contribute acidic waters, as well as mineralized alluvial material and sediments, to the river. The overall goal of the USGS study is to infer the premining ground-water quality at the Molycorp mine site. An integrated geologic, hydrologic, and geochemical model for ground water in the mineralized-but unmined-Straight Creek drainage (a tributary of the Red River) is being used as an analog for the geologic, geochemical, and hydrologic conditions that influenced ground-water quality and quantity in the Red River drainage prior to mining. This report provides an overall geologic framework for the Red River watershed between Red River and Questa, in northern New Mexico, and summarizes key geologic, mineralogic, structural and other characteristics of various mineralized areas (and their associated erosional scars and debris fans) that likely influence ground- and surface-water quality and hydrology. The premining nature of the Sulphur Gulch and Goat Hill Gulch scars on the Molycorp mine site can be inferred through geologic comparisons with other unmined scars in the Red River drainage.

  9. 76 FR 78157 - Safety Zone; Eisenhower Expressway Bridge Rehabilitation Project; Chicago River South Branch...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-16

    ...-AA00 Safety Zone; Eisenhower Expressway Bridge Rehabilitation Project; Chicago River South Branch... the Eisenhower Expressway Bridge. This temporary safety zone is necessary to protect the surrounding... Bridge. Entry into this zone is prohibited unless specifically authorized by the Captain of the Port...

  10. 33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey. 165.552 Section 165.552 Navigation and Navigable... Coast Guard District § 165.552 Security Zone; Oyster Creek Generation Station, Forked River, Ocean...

  11. 33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey. 165.552 Section 165.552 Navigation and Navigable... Coast Guard District § 165.552 Security Zone; Oyster Creek Generation Station, Forked River, Ocean...

  12. 33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey. 165.552 Section 165.552 Navigation and Navigable... Coast Guard District § 165.552 Security Zone; Oyster Creek Generation Station, Forked River, Ocean...

  13. 33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey. 165.552 Section 165.552 Navigation and Navigable... Coast Guard District § 165.552 Security Zone; Oyster Creek Generation Station, Forked River, Ocean...

  14. 33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey. 165.552 Section 165.552 Navigation and Navigable... Coast Guard District § 165.552 Security Zone; Oyster Creek Generation Station, Forked River, Ocean...

  15. 33 CFR 165.927 - Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN. 165.927 Section 165.927 Navigation and Navigable... Coast Guard District § 165.927 Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site...

  16. 78 FR 33224 - Safety Zone; Grain-Shipment and Grain-Shipment Assist Vessels, Columbia and Willamette Rivers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-04

    ... 1625-AA00 Safety Zone; Grain-Shipment and Grain-Shipment Assist Vessels, Columbia and Willamette Rivers... Guard is establishing a temporary safety zone around all inbound and outbound grain-shipment and grain-shipment assist vessels involved in commerce with the Columbia Grain facility on the Willamette River in...

  17. 33 CFR 165.T08-0315 - Safety Zone; Upper Mississippi River, Mile 183.0 to 183.5.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... River, Mile 183.0 to 183.5. 165.T08-0315 Section 165.T08-0315 Navigation and Navigable Waters COAST... Guard District § 165.T08-0315 Safety Zone; Upper Mississippi River, Mile 183.0 to 183.5. (a) Location. The following area is a safety zone: All waters of the Upper Mississippi River, mile 183.0 to 183.5...

  18. 76 FR 35106 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-16

    ...-AA00 Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago..., DHS. ACTION: Final rule. SUMMARY: The Coast Guard is establishing a permanent safety zone from Brandon... Safety Zones; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary...

  19. 78 FR 36091 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-17

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago...

  20. 33 CFR 165.708 - Safety/Security Zone; Charleston Harbor and Cooper River, Charleston, SC.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Harbor and Cooper River, Charleston, SC. 165.708 Section 165.708 Navigation and Navigable Waters COAST... Guard District § 165.708 Safety/Security Zone; Charleston Harbor and Cooper River, Charleston, SC. (a... Cooper River. All coordinates referenced use datum: NAD 1983. (2) All waters within 100 yards of the...

  1. Delineating riparian zones for entire river networks using geomorphological criteria

    NASA Astrophysics Data System (ADS)

    Fernández, D.; Barquín, J.; Álvarez-Cabria, M.; Peñas, F. J.

    2012-03-01

    Riparian zone delineation is a central issue for riparian and river ecosystem management, however, criteria used to delineate them are still under debate. The area inundated by a 50-yr flood has been indicated as an optimal hydrological descriptor for riparian areas. This detailed hydrological information is, however, not usually available for entire river corridors, and is only available for populated areas at risk of flooding. One of the requirements for catchment planning is to establish the most appropriate location of zones to conserve or restore riparian buffer strips for whole river networks. This issue could be solved by using geomorphological criteria extracted from Digital Elevation Models. In this work we have explored the adjustment of surfaces developed under two different geomorphological criteria with respect to the flooded area covered by the 50-yr flood, in an attempt to rapidly delineate hydrologically-meaningful riparian zones for entire river networks. The first geomorphological criterion is based on the surface that intersects valley walls at a given number of bankfull depths above the channel (BFDAC), while the second is based on the surface defined by a~threshold value indicating the relative cost of moving from the stream up to the valley, accounting for slope and elevation change (path distance). As the relationship between local geomorphology and 50-yr flood has been suggested to be river-type dependant, we have performed our analyses distinguishing between three river types corresponding with three valley morphologies: open, shallow vee and deep vee valleys (in increasing degree of valley constrainment). Adjustment between the surfaces derived from geomorphological and hydrological criteria has been evaluated using two different methods: one based on exceeding areas (minimum exceeding score) and the other on the similarity among total area values. Both methods have pointed out the same surfaces when looking for those that best match with

  2. 76 FR 77901 - Safety Zone; Upper Mississippi River, Mile 389.4 to 403.1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-15

    ...-AA00 Safety Zone; Upper Mississippi River, Mile 389.4 to 403.1 AGENCY: Coast Guard, DHS. ACTION... Upper Mississippi River, from Mile 389.4 to 403.1, extending the entire width of the river located on... 389.4 to 403.1 on the Upper Mississippi River. Under 5 U.S.C. 553(d)(3), the Coast Guard finds that...

  3. 33 CFR 165.T09-0333 - Safety zone; Marathon Oil Refinery construction, Rouge River, Detroit, MI.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety zone; Marathon Oil Refinery construction, Rouge River, Detroit, MI. 165.T09-0333 Section 165.T09-0333 Navigation and Navigable... Coast Guard District § 165.T09-0333 Safety zone; Marathon Oil Refinery construction, Rouge River...

  4. 75 FR 64673 - Safety Zone, Brandon Road Lock and, Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-20

    ... Zone, Brandon Road Lock and, Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and... Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Ship and...: The Coast Guard will enforce Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des...

  5. 78 FR 65874 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-04

    ...-AA00 Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago... the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago... Guard will enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including...

  6. 78 FR 53675 - Eighth Coast Guard District Annual Safety Zones; Boomsday Festival; Tennessee River 646.0-649.0...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-30

    ...-AA00 Eighth Coast Guard District Annual Safety Zones; Boomsday Festival; Tennessee River 646.0-649.0... Guard will enforce a Safety Zone for the Boomsday Festival Fireworks on the Tennessee River 646.0-649.0... Festival Fireworks. During the enforcement period, entry into, transiting or anchoring in the Safety Zone...

  7. 76 FR 11961 - Safety Zone, Dredging Operations; Delaware River, Marcus Hook, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-04

    ...-AA00 Safety Zone, Dredging Operations; Delaware River, Marcus Hook, PA AGENCY: Coast Guard, DHS. ACTION... Delaware River while the Dredge Pullen conducts dredging operations at the Sunoco Marcus Hook docks in the vicinity of the Marcus Hook Range near Marcus Hook, PA. This action is necessary to maintain the 42 ft...

  8. Apollo 9 Mission image - United Arab Republic,Nile River,Red Sea and Aswan Dam

    NASA Image and Video Library

    1969-03-03

    Oblique Earth Observation taken by the Apollo 9 crew. View is the United Arab Republic,the Nile River,The Red Sea and the Aswan Dam. Film magazine was E,film type was SO-368 Ektachrome with 0.460 - 0.710 micrometers film / filter transmittance response and haze filter,80mm lens. Latitude was 19.38 N by Longitude 30.24 E, Overlap was 50%, Altitude was 97 nautical miles and cloud cover was 5%.

  9. 77 FR 15263 - Security Zone; Portland Rose Festival on Willamette River; Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... Zone; Portland Rose Festival on Willamette River; Portland, OR AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of regulation. SUMMARY: The Coast Guard will enforce the Portland Rose Festival... Willamette River during the Portland Rose festival. During the enforcement period, no person or vessel may...

  10. Temporal and spatial distribution of red tide outbreaks in the Yangtze River Estuary and adjacent waters, China.

    PubMed

    Liu, Lusan; Zhou, Juan; Zheng, Binghui; Cai, Wenqian; Lin, Kuixuan; Tang, Jingliang

    2013-07-15

    Between 1972 and 2009, evidence of red tide outbreaks in the Yangtze River Estuary and adjacent waters was collected. A geographic information system (GIS) was used to analyze the temporal and spatial distribution of these red tides, and it was subsequently used to map the distribution of these events. The results show that the following findings. (1) There were three red tide-prone areas: outside the Yangtze River Estuary and the eastern coast of Sheshan, the Huaniaoshan-Shengshan-Gouqi waters, and the Zhoushan areas and eastern coast of Zhujiajian. In these areas, red tides occurred 174 total times, 25 of which were larger than 1000 km(2) in areal extent. After 2000, the frequency of red tide outbreaks increased significantly. (2) During the months of May and June, the red tide occurrence in these areas was 51% and 20%, respectively. (3) Outbreaks of the dominant red tide plankton species Prorocentrum dong-haiense, Skeletonema costatum, Prorocentrum dantatum, and Noctiluca scientillan occurred 38, 35, 15, and 10 times, respectively, during the study interval. Copyright © 2013 Elsevier Ltd. All rights reserved.

  11. 75 FR 61619 - Safety Zone; IJSBA World Finals, Lower Colorado River, Lake Havasu, AZ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ...-AA00 Safety Zone; IJSBA World Finals, Lower Colorado River, Lake Havasu, AZ AGENCY: Coast Guard, DHS... Sports Boating Association (IJSBA) World Finals. This temporary safety zone is necessary to provide for... notice of proposed rulemaking (NPRM) entitled Safety Zone; IJSBA World Finals in the Federal Register (75...

  12. Broadening the regulated-river management paradigm: A case study of the forgotten dead zone hindering Pallid Sturgeon recovery

    USGS Publications Warehouse

    Guy, Christopher S.; Treanor, Hilary B.; Kappenman, Kevin M.; Scholl, Eric A.; Ilgen, Jason E.; Webb, Molly A. H.

    2015-01-01

    The global proliferation of dams within the last half century has prompted ecologists to understand the effects of regulated rivers on large-river fishes. Currently, much of the effort to mitigate the influence of dams on large-river fishes has been focused on downriver effects, and little attention has been given to upriver effects. Through a combination of field observations and laboratory experiments, we tested the hypothesis that abiotic conditions upriver of the dam are the mechanism for the lack of recruitment in Pallid Sturgeon (Scaphirhynchus albus), an iconic large-river endangered species. Here we show for the first time that anoxic upriver habitat in reservoirs (i.e., the transition zone between the river and reservoir) is responsible for the lack of recruitment in Pallid Sturgeon. The anoxic condition in the transition zone is a function of reduced river velocities and the concentration of fine particulate organic material with high microbial respiration. As predicted, the river upstream of the transition zone was oxic at all sampling locations. Our results indicate that transition zones are an ecological sink for Pallid Sturgeon. We argue that ecologists, engineers, and policy makers need to broaden the regulated-river paradigm to consider upriver and downriver effects of dams equally to comprehensively mitigate altered ecosystems for the benefit of large-river fishes, especially for the Pallid Sturgeon.

  13. Ground Water Redox Zonation near La Pine, Oregon: Relation to River Position within the Aquifer-Riparian Zone Continuum

    USGS Publications Warehouse

    Hinkle, Stephen R.; Morgan, David S.; Orzol, Leonard L.; Polette, Danial J.

    2007-01-01

    Increasing residential development since in the 1960s has lead to increases in nitrate concentrations in shallow ground water in parts of the 247 square mile study area near La Pine, Oregon. Denitrification is the dominant nitrate-removal process that occurs in suboxic ground water, and suboxic ground water serves as a barrier to transport of most nitrate in the aquifer. Oxic ground water, on the other hand, represents a potential pathway for nitrate transport from terrestrial recharge areas to the Deschutes and Little Deschutes Rivers. The effects of present and potential future discharge of ground-water nitrate into the nitrogen-limited Deschutes and Little Deschutes Rivers are not known. However, additions of nitrogen to nitrogen-limited rivers can lead to increases in primary productivity which, in turn, can increase the magnitudes of dissolved oxygen and pH swings in river water. An understanding of the distribution of oxic ground water in the near-river environment could facilitate understanding the vulnerability of these rivers and could be a useful tool for management of these rivers. In this study, transects of temporary wells were installed in sub-river sediments beneath the Deschutes and Little Deschutes Rivers near La Pine to characterize near-river reduction/oxidation (redox) conditions near the ends of ground-water flow paths. Samples from transects installed near the center of the riparian zone or flood plain were consistently suboxic. Where transects were near edges of riparian zones, most ground-water samples also were suboxic. Oxic ground water (other than hyporheic water) was uncommon, and was only detected near the outside edge of some meander bends. This pattern of occurrence likely reflects geochemical controls throughout the aquifer as well as geochemical processes in the microbiologically active riparian zone near the end of ground-water flow paths. Younger, typically less reduced ground water generally enters near-river environments through

  14. Groundwater and solute transport modeling at Hyporheic zone of upper part Citarum River

    NASA Astrophysics Data System (ADS)

    Iskandar, Irwan; Farazi, Hendy; Fadhilah, Rahmat; Purnandi, Cipto; Notosiswoyo, Sudarto

    2017-06-01

    Groundwater and surface water interaction is an interesting topic to be studied related to the water resources and environmental studies. The study of interaction between groundwater and river water at the Upper Part Citarum River aims to know the contribution of groundwater to the river or reversely and also solute transport of dissolved ions between them. Analysis of drill logs, vertical electrical sounding at the selected sections, measurement of dissolved ions, and groundwater modeling were applied to determine the flow and solute transport phenomena at the hyporheic zone. It showed the hyporheic zone dominated by silt and clay with hydraulic conductivity range from 10-4∼10-8 m/s. The groundwater flowing into the river with very low gradient and it shows that the Citarum River is a gaining stream. The groundwater modeling shows direct seepage of groundwater into the Citarum River is only 186 l/s, very small compared to the total discharge of the river. Total dissolved ions of the groundwater ranged from 200 to 480 ppm while the river water range from 200 to 2,000 ppm. Based on solute transport modeling it indicates dissolved ions dispersion of the Citarum River into groundwater may occur in some areas such as Bojongsoang-Dayeuh Kolot and Nanjung. This situation would increase the dissolved ions in groundwater in the region due to the contribution of the Citarum River. The results of the research can be a reference for further studies related to the mechanism of transport of the pollutants in the groundwater around the Citarum River.

  15. Temporal trend and source apportionment of water pollution in different functional zones of Qiantang River, China.

    PubMed

    Su, Shiliang; Li, Dan; Zhang, Qi; Xiao, Rui; Huang, Fang; Wu, Jiaping

    2011-02-01

    The increasingly serious river water pollution in developing countries poses great threat to environmental health and human welfare. The assignment of river function to specific uses, known as zoning, is a useful tool to reveal variations of water environmental adaptability to human impact. Therefore, characterizing the temporal trend and identifying responsible pollution sources in different functional zones could greatly improve our knowledge about human impacts on the river water environment. The aim of this study is to obtain a deeper understanding of temporal trends and sources of water pollution in different functional zones with a case study of the Qiantang River, China. Measurement data were obtained and pretreated for 13 variables from 41 monitoring sites in four categories of functional zones during the period 1996-2004. An exploratory approach, which combines smoothing and non-parametric statistical tests, was applied to characterize trends of four significant parameters (permanganate index, ammonia nitrogen, total cadmium and fluoride) accounting for differences among different functional zones identified by discriminant analysis. Aided by GIS, yearly pollution index (PI) for each monitoring site was further mapped to compare the within-group variations in temporal dynamics for different functional zones. Rotated principal component analysis and receptor model (absolute principle component score-multiple linear regression, APCS-MLR) revealed that potential pollution sources and their corresponding contributions varied among the four functional zones. Variations of APCS values for each site of one functional zone as well as their annual average values highlighted the uncertainties associated with cross space-time effects in source apportionment. All these results reinforce the notion that the concept of zoning should be taken seriously in water pollution control. Being applicable to other rivers, the framework of management-oriented source apportionment

  16. 75 FR 8005 - Safety Zone; Wicomico Community Fireworks, Great Wicomico River, Mila, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-23

    ...-AA00 Safety Zone; Wicomico Community Fireworks, Great Wicomico River, Mila, VA AGENCY: Coast Guard, DHS... the Great Wicomico River in the vicinity of Mila, VA in support of the Wicomico Community Fireworks... protect mariners from the hazards associated with fireworks displays. DATES: Comments and related material...

  17. 33 CFR 165.820 - Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zone; Ohio River Mile... Guard District § 165.820 Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania. (a... shoreline of the left descending bank beginning from mile marker 34.6 and ending at mile marker 35.1. (b...

  18. 33 CFR 165.820 - Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zone; Ohio River Mile... Guard District § 165.820 Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania. (a... shoreline of the left descending bank beginning from mile marker 34.6 and ending at mile marker 35.1. (b...

  19. 33 CFR 165.820 - Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zone; Ohio River Mile... Guard District § 165.820 Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania. (a... shoreline of the left descending bank beginning from mile marker 34.6 and ending at mile marker 35.1. (b...

  20. 33 CFR 165.820 - Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zone; Ohio River Mile... Guard District § 165.820 Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania. (a... shoreline of the left descending bank beginning from mile marker 34.6 and ending at mile marker 35.1. (b...

  1. 77 FR 62442 - Safety Zone; Oregon City Bridge Grand Opening Fireworks Display; Willamette River, Oregon City, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-15

    ... 1625-AA00 Safety Zone; Oregon City Bridge Grand Opening Fireworks Display; Willamette River, Oregon City, OR AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the Willamette River between the Oregon City Bridge and the Interstate 205 Bridge...

  2. 77 FR 28255 - Safety Zone; Upper Mississippi River, Mile 183.0 to 183.5

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-14

    ...-AA00 Safety Zone; Upper Mississippi River, Mile 183.0 to 183.5 AGENCY: Coast Guard, DHS. ACTION... Upper Mississippi River, from mile 183.0 to mile 183.5, in the vicinity of the Merchants Bridge and... Merchants Bridge in the vicinity of mile 183.0 to 183.5 on the Upper Mississippi River. After initial...

  3. 75 FR 29660 - Safety Zone; Wicomico Community Fireworks, Great Wicomico River, Mila, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-27

    ...-AA00 Safety Zone; Wicomico Community Fireworks, Great Wicomico River, Mila, VA AGENCY: Coast Guard, DHS... the Great Wicomico River in the vicinity of Mila, VA in support of the Wicomico Community Fireworks... protect mariners from the hazards associated with fireworks displays. DATES: This rule is effective from 9...

  4. 75 FR 20778 - Security Zone; Portland Rose Festival Fleet Week, Willamette River, Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-21

    ...-AA87 Security Zone; Portland Rose Festival Fleet Week, Willamette River, Portland, OR AGENCY: Coast... during the Portland Rose Festival Fleet Week from June 2, 2010, through June 7, 2010. The security zone... is a need to provide a security zone for the 2010 Portland Rose Festival Fleet Week, and there is...

  5. The Relationship Between Sexual Victimization and Year in School in U.S. Colleges: Investigating the Parameters of the "Red Zone".

    PubMed

    Cranney, Stephen

    2015-10-01

    It is the conventional wisdom among some universities that the highest risk of sexual assault is in the first or possibly second year in school. While initially belief in this pattern was primarily based on anecdote, recently some attempts have been made to more systematically and quantitatively test the existence of a "red zone," a time of heightened risk of sexual assault sometime near the beginning of a female student's time at the college. However, most of these studies have been conducted with relatively small convenience samples from single schools and have had conflicting results. Here, I test the red zone hypothesis using self-reported sexual victimization data with a large sample (~16,000) drawn from 22 schools as part of the Online College Social Life Survey. To investigate the specific mechanisms responsible for the red zone, I separately test for the existence of a red zone for four different types of sexual victimizations: physically forced intercourse, attempted forced intercourse, unwanted intercourse when incapacitated, and unwanted intercourse due to verbal pressure. Within these categories, I separately address sexual victimization that occurred while hanging out and sexual victimization during a party. Prior literature has emphasized the role of parties in the increased risk of assault for freshman. While I find some evidence for this in the higher estimates for sexual victimization at a party, the freshman effect remains for other types of sexual victimizations, suggesting that the red zone is not easily attributable to a single mechanistic cause, but to more generalizable factors. With one exception, I find that the red zone does not extend into the sophomore year. © The Author(s) 2014.

  6. 76 FR 49666 - Safety Zone; East Coast Drag Boat Bucksport Blowout Boat Race, Waccamaw River, Bucksport, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-11

    ...-AA00 Safety Zone; East Coast Drag Boat Bucksport Blowout Boat Race, Waccamaw River, Bucksport, SC... temporary safety zone on the waters of the Waccamaw River during the East Coast Drag Boat Bucksport Blowout in Bucksport, South Carolina. The East Coast Drag Boat Bucksport Blowout will consist of a series of...

  7. Gravity mode offset and properties of the evanescent zone in red-giant stars

    NASA Astrophysics Data System (ADS)

    Hekker, S.; Elsworth, Y.; Angelou, G. C.

    2018-03-01

    Context. The wealth of asteroseismic data for red-giant stars and the precision with which these data have been observed over the last decade calls for investigations to further understand the internal structures of these stars. Aim. The aim of this work is to validate a method to measure the underlying period spacing, coupling term, and mode offset of pure gravity modes that are present in the deep interiors of red-giant stars. We subsequently investigate the physical conditions of the evanescent zone between the gravity mode cavity and the pressure mode cavity. Methods: We implement an alternative mathematical description compared to what is used in the literature to analyse observational data and to extract the underlying physical parameters that determine the frequencies of mixed modes. This description takes the radial order of the modes explicitly into account, which reduces its sensitivity to aliases. Additionally, and for the first time, this method allows us to constrain the gravity mode offset ɛg for red-giant stars. Results: We find that this alternative mathematical description allows us to determine the period spacing ΔΠ and the coupling term q for the dipole modes within a few percent of values found in the literature. Additionally, we find that ɛg varies on a star-by-star basis and should not be kept fixed in the analysis. Furthermore, we find that the coupling factor is logarithmically related to the physical width of the evanescent region normalised by the radius at which the evanescent zone is located. Finally, the local density contrast at the edge of the core of red-giant branch models shows a tentative correlation with the offset ɛg. Conclusions: We are continuing to exploit the full potential of the mixed modes to investigate the internal structures of red-giant stars; in this case we focus on the evanescent zone. It remains, however, important to perform comparisons between observations and models with great care as the methods employed

  8. 75 FR 45478 - Safety Zone; Transformers 3 Movie Filming, Chicago River, Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-03

    ...-AA00 Safety Zone; Transformers 3 Movie Filming, Chicago River, Chicago, IL AGENCY: Coast Guard, DHS... portion of the Chicago River due to the filming of a major motion picture, Transformers 3. These temporary..., Transformers 3. The Captain of the Port, Sector Lake Michigan, has determined that the stunts associated with...

  9. 77 FR 21436 - Safety Zone, East River, Brooklyn Bridge Scaffolding Repair, Brooklyn, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ...-AA00 Safety Zone, East River, Brooklyn Bridge Scaffolding Repair, Brooklyn, NY AGENCY: Coast Guard, DHS... navigable waters of the East River, in the vicinity of the Brooklyn Bridge. This action is necessary to... and remove the damaged scaffolding under the eastern span of the bridge. This rule is intended to...

  10. A comprehensive fluvial geomorphology study of riverbank erosion on the Red River in Winnipeg, Manitoba, Canada

    NASA Astrophysics Data System (ADS)

    Kimiaghalam, Navid; Goharrokhi, Masoud; Clark, Shawn P.; Ahmari, Habib

    2015-10-01

    Riverbank erosion on the Red River in Winnipeg, Manitoba has raised concerns over the last 20 years and more. Although several recent studies have shown that fluvial erosion can reduce riverbank stability and promote geotechnical slope failure, there are too few that have focused on this phenomenon. The present study includes field measurements, experimental testing, and numerical modelling to quantify fluvial erosion through a 10 km reach of the Red River. Results have shown that seasonal freeze-thaw processes can dramatically reduce the critical shear stress and increase erodibility of the riverbanks. Moreover, a simple method has been employed using hydrodynamic numerical models to define the applied shear stresses on the river banks based on the river water level, which will be useful for further research and design purposes. The TEMP/W numerical model was used to define seasonal frost depth to estimate freeze-thaw effects. Finally all field measurements, experimental and numerical models results were used to predict annual fluvial erosion through this reach of the river.

  11. 33 CFR 165.509 - Security Zone; Severn River and College Creek, Annapolis, MD.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... College Creek, Annapolis, MD. 165.509 Section 165.509 Navigation and Navigable Waters COAST GUARD... § 165.509 Security Zone; Severn River and College Creek, Annapolis, MD. (a) Definitions. For purposes of... the Naval Academy waterfront. This security zone includes the waters of College Creek eastward of the...

  12. 76 FR 32313 - Safety Zone; Chelsea St. Bridge Demolition, Chelsea River, Chelsea, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-06

    ...-AA00 Safety Zone; Chelsea St. Bridge Demolition, Chelsea River, Chelsea, MA AGENCY: Coast Guard, DHS... Sector Boston Captain of the Port (COTP) Zone for the demolition of the Chelsea St. Bridge. This safety... Chelsea St. Bridge during the operations surrounding the bridge's demolition and removal. Discussion of...

  13. Questa baseline and pre-mining ground-water quality investigation. 3. Historical ground-water quality for the Red River Valley, New Mexico

    USGS Publications Warehouse

    LoVetere, Sara H.; Nordstrom, D. Kirk; Maest, Ann S.; Naus, Cheryl A.

    2003-01-01

    Historical ground-water quality data for 100 wells in the Red River Valley between the U.S. Geological Survey streamflow-gaging station (08265000), near Questa, and Placer Creek east of the town of Red River, New Mexico, were compiled and reviewed. The tabulation included 608 water-quality records from 23 sources entered into an electronic database. Groundwater quality data were first collected at the Red River wastewater-treatment facility in 1982. Most analyses, however, were obtained between 1994 and 2002, even though the first wells were developed in 1962. The data were evaluated by considering (a) temporal consistency, (b) quality of sampling methods, (c) charge imbalance, and (d) replicate analyses. Analyses that qualified on the basis of these criteria were modeled to obtain saturation indices for gypsum, calcite, fluorite, gibbsite, manganite, and rhodocrosite. Plots created from the data illustrate that water chemistry in the Red River Valley is predominantly controlled by calcite dissolution, congruent gypsum dissolution, and pyrite oxidation.

  14. Hydrogeology and simulated groundwater flow and availability in the North Fork Red River aquifer, southwest Oklahoma, 1980–2013

    USGS Publications Warehouse

    Smith, S. Jerrod; Ellis, John H.; Wagner, Derrick L.; Peterson, Steven M.

    2017-09-28

    On September 8, 1981, the Oklahoma Water Resources Board established regulatory limits on the maximum annual yield of groundwater (343,042 acre-feet per year) and equal-proportionate-share (EPS) pumping rate (1.0 acre-foot per acre per year) for the North Fork Red River aquifer. The maximum annual yield and EPS were based on a hydrologic investigation that used a numerical groundwater-flow model to evaluate the effects of potential groundwater withdrawals on groundwater availability in the North Fork Red River aquifer. The Oklahoma Water Resources Board is statutorily required (every 20 years) to update the hydrologic investigation on which the maximum annual yield and EPS were based. Because 20 years have elapsed since the final order was issued, the U.S. Geological Survey, in cooperation with the Oklahoma Water Resources Board, conducted an updated hydrologic investigation and evaluated the effects of potential groundwater withdrawals on groundwater flow and availability in the North Fork Red River aquifer in Oklahoma. This report describes a hydrologic investigation of the North Fork Red River aquifer that includes an updated summary of the aquifer hydrogeology. As part of this investigation, groundwater flow and availability were simulated by using a numerical groundwater-flow model.The North Fork Red River aquifer in Beckham, Greer, Jackson, Kiowa, and Roger Mills Counties in Oklahoma is composed of about 777 square miles (497,582 acres) of alluvium and terrace deposits along the North Fork Red River and tributaries, including Sweetwater Creek, Elk Creek, Otter Creek, and Elm Fork Red River. The North Fork Red River is the primary source of surface-water inflow to Lake Altus, which overlies the North Fork Red River aquifer. Lake Altus is a U.S. Bureau of Reclamation reservoir with the primary purpose of supplying irrigation water to the Lugert-Altus Irrigation District.A hydrogeologic framework was developed for the North Fork Red River aquifer and included a

  15. Red River of the North, Reconnaissance Report: Main Stem Subbasin.

    DTIC Science & Technology

    1980-12-01

    total subbasin land area. The bottomland hardwood forests which survived agricultural land clearing operations are confined today to corridors along...impair many of its uses such as recreation, 16 stock watering, and fish and wildife propagation (North Dakota Public Health Service, 1978; Upper... corridor for animals moving north and south along the Red River. Forests afford breeding and nesting areas for birds and rank second only 2to wetlands

  16. "The Red Zone": Temporal Risk for Unwanted Sex among College Students

    ERIC Educational Resources Information Center

    Flack, William F., Jr.; Caron, Marcia L.; Leinen, Sarah J.; Breitenbach, Katherine G.; Barber, Ann M.; Brown, Elaine N.; Gilbert, Caitlin T.; Harchak, Taylor F.; Hendricks, Melissa M.; Rector, Catherine E.; Schatten, Heather T.; Stein, Heather C.

    2008-01-01

    The "red zone" usually refers to the first few weeks of the first semester at college, when female students are believed to be at greatest risk for experiencing unwanted sex. We tested this notion using data from a survey study of 207 first-and second-year students (121 women, 84 men) at a small, liberal arts university. Results demonstrated only…

  17. RED SHINER INVASION OF THE UPPER COOSA RIVER SYSTEM: DYNAMICS AND ECOLOGICAL CONSEQUENCES

    EPA Science Inventory

    The red shiner (Cyprinella lutrensis) has been widely introduced across 11 states outside its native range, presumably through bait-bucket and aquarium releases. Its native range includes Great Plain and Central Lowland tributaries of the Mississippi River and western Coastal Pla...

  18. Nutrient (N, P) budgets for the Red River basin (Vietnam and China)

    NASA Astrophysics Data System (ADS)

    Quynh, Le Thi Phuong; Billen, Gilles; Garnier, Josette; ThéRy, Sylvain; FéZard, CéDric; Minh, Chau Van

    2005-06-01

    In order to examine the degree of human-induced alteration of the nitrogen and phosphorus cycles at the scale of a tropical watershed of regional dimension, the budgets of these two elements were estimated in the four main sub-basins (Da, Lo, Thao, and Delta) of the Red River system (156 448 km2, Vietnam and China). The four sub-basins differ widely in population density (from 101 inhabitants km-2 in the upstream basins to more than 1000 inhabitants km-2 in the delta), land use, and agricultural practices. In terms of agricultural production, on the one hand, and consumption of food and feed on the other, the upstream sub-basins are autotrophic systems, exporting agricultural goods, while the delta is a heterotrophic system, depending on agricultural goods imports. The budget of the agricultural soils reveals great losses of nitrogen, mostly attributable to denitrification in rice paddy fields and of phosphorus, mostly caused by erosion. The budget of the drainage network shows high retention/elimination of nitrogen (from 62 to 77% in the upstream basins and 59% in the delta), and of phosphorus, with retention rates as high as 80% in the Da and Lo sub-basins which have large reservoirs in their downstream course (Hoa Binh on the Da and Thac Ba on the Lo). The total specific delivery estimated at the outlet of the whole Red River System is 855 kg km-2 yr-1 total N and 325 kg km-2 yr-1 total P. Nitrogen rather than phosphorus seems to be the potential limiting factor of algal growth in the plume of the Red River in Tonkin Bay.

  19. 77 FR 46613 - Safety Zone; 2012 Ironman US Championship Swim, Hudson River, Fort Lee, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-06

    ... 1625-AA00 Safety Zone; 2012 Ironman US Championship Swim, Hudson River, Fort Lee, NJ AGENCY: Coast... navigable waters of the Hudson River in the vicinity of Englewood Cliffs and Fort Lee, NJ for the 2012... Championship Swim, Hudson River, Fort Lee, NJ in the Federal Register (77 FR 34285). We received no comments on...

  20. 75 FR 59620 - Natchez Fireworks Safety Zone; Lower Mississippi River, Mile Marker 365.5 to Mile Marker 363...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-28

    ...-AA00 Natchez Fireworks Safety Zone; Lower Mississippi River, Mile Marker 365.5 to Mile Marker 363... establishing a temporary safety zone for all waters of the Lower Mississippi River from mile marker 365.5 to... from mile marker 365.5 to 363 extending the entire width [[Page 59621

  1. Strontium and Trace Metals in the Mississippi River Mixing Zone

    NASA Astrophysics Data System (ADS)

    Xu, Y.; Marcantonio, F.

    2001-12-01

    Strontium is generally believed to be a conservative element, i.e., it is assumed that dissolved Sr moves directly from rivers through estuaries to the ocean. More recently, however, detailed sampling of rivers suggests a weak non-conservative behavior for Sr. Here, we present dissolved and suspended load Sr and trace metal data for samples retrieved along salinity transects in the estuarine mixing zone of the Mississippi River. Our cruises took place during times representing high, falling, and low Mississippi River discharge. Sr concentration and isotopic composition were analyzed for both dissolved particulate loads. Selected particle-reactive or redox-sensitive trace metals (Mn, Fe, U, V, Mo, Ti, and Pb) were analyzed simultaneously. In the dissolved load, Sr showed conservative behavior in both high- and low- discharge periods. Non-conservative behavior of Sr predominated during falling discharge in the summer. Significant positive correlations were found between Sr, Mo and Ti. U and V distributions were found to be essentially controlled by mixing of river water and seawater, but with significantly lower riverine concentrations during high-flow stage. Particulate element concentrations can be quite variable and heterogeneous. In this study, strong correlations were found between particulate Mn (and Fe) concentrations and particulate concentrations of Ti, U, V, and Pb. No such correlations with Mn (or Fe) were found for particulate Sr and Mo. There is a vast hypoxic zone along the coast of Louisiana in the Gulf of Mexico that exists during the summer months. Based on the Sr isotope systematics and the relationships between Sr and trace metals, we believe that this eutrophication may contribute to the non-conservative behaviors of Sr and other trace metals. We discuss the potential implications of this hypothesis on the Sr mass balance of present-day and past seawater.

  2. 78 FR 39601 - Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ...-AA00 Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA AGENCY: Coast... the Delaware River. Sugar House Casino has contracted with Pyrotecnico Fireworks to arrange for this display. The Captain of the Port, Sector Delaware Bay, has determined that the Sugar House Casino...

  3. 75 FR 73960 - Safety Zone; “Contagion” Movie Filming, Calumet River, Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-30

    ...-AA00 Safety Zone; ``Contagion'' Movie Filming, Calumet River, Chicago, IL AGENCY: Coast Guard, DHS... Calumet River due to the filming of a movie involving high speed boat chases and other dangerous stunts on... movie. DATES: This rule is effective from 7 a.m. on December 11, 2010 until 7 a.m. on December 12, 2010...

  4. 76 FR 53827 - Safety Zone; Big Sioux River From the Military Road Bridge North Sioux City to the Confluence of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-30

    ...-AA00 Safety Zone; Big Sioux River From the Military Road Bridge North Sioux City to the Confluence of... rule extends the existing temporary safety zone on the Big Sioux River from the Military Road Bridge in... period. SUMMARY: The Coast Guard is extending the effective period for the temporary safety zone...

  5. 77 FR 10960 - Security Zone, East River and Bronx Kill; Randalls and Wards Islands, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-24

    ...-AA87 Security Zone, East River and Bronx Kill; Randalls and Wards Islands, NY AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary security zone on the... security zone is necessary to ensure the safety of the President of the United States, members of his...

  6. 76 FR 61261 - Safety Zone; IJSBA World Finals; Lower Colorado River, Lake Havasu, AZ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-04

    ...-AA00 Safety Zone; IJSBA World Finals; Lower Colorado River, Lake Havasu, AZ AGENCY: Coast Guard, DHS... Boating Association (IJSBA) World Finals. This temporary safety zone is necessary to provide for the... The International Jet Sports Boating Association is sponsoring the IJSBA World Finals. The event will...

  7. Modelling of faecal indicator bacteria (FIB) in the Red River basin (Vietnam).

    PubMed

    Nguyen, Huong Thi Mai; Billen, Gilles; Garnier, Josette; Rochelle-Newall, Emma; Ribolzi, Olivier; Servais, Pierre; Le, Quynh Thi Phuong

    2016-09-01

    Many studies have been published on the use of models to assess water quality through faecal contamination levels. However, the vast majority of this work has been conducted in developed countries and similar studies from developing countries in tropical regions are lacking. Here, we used the Seneque/Riverstrahler model to investigate the dynamics and seasonal distribution of total coliforms (TC), an indicator of faecal contamination, in the Red River (Northern Vietnam) and its upstream tributaries. The results of the model showed that, in general, the overall correlations between the simulated and observed values of TC follow a 1:1 relationship at all examined stations. They also showed that TC numbers were affected by both land use in terms of human and livestock populations and by hydrology (river discharge). We also developed a possible scenario based on the predicted changes in future demographics and land use in the Red River system for the 2050 horizon. Interestingly, the results showed only a limited increase of TC numbers compared with the present situation at all stations, especially in the upstream Vu Quang station and in the urban Ha Noi station. This is probably due to the dominance of diffuse sources of contamination relative to point sources. The model is to our knowledge one of the first mechanistic models able to simulate spatial and seasonal variations of microbial contamination (TC numbers) in the whole drainage network of a large regional river basin covering both urban and rural areas of a developing country.

  8. 76 FR 2829 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-18

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines...

  9. 77 FR 20295 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-04

    ... Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines...

  10. 78 FR 36092 - Safety Zone; Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-17

    ... Zone; Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... Coast Guard will enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan...

  11. 77 FR 35854 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines...

  12. 75 FR 52462 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-26

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines...

  13. 78 FR 40635 - Safety Zone; Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-08

    ... Zone; Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... Coast Guard will enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan...

  14. 75 FR 73966 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-30

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... enforce a segment of the Safety Zone; Brandon Road Lock and Dam to Lake Michigan including Des Plaines...

  15. Lower Red River Meadow Restoration Project : Biennial Report 1996-97.

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

    LRK Communications; Wildlife Habitat Institute; Pocket Water, Inc.

    2003-07-01

    The Red River has been straightened and the riparian vegetation corridor eliminated in several reaches within the watershed. The river responded by incision resulting in over-steepened banks, increased sedimentation, elevated water temperatures, depressed groundwater levels, reduced floodplain function, and degraded fish habitat. The Lower Red River Meadow Restoration Project is a multi-phase ecosystem enhancement effort that restores natural physical and biological processes and functions to stabilize the stream channel and establish high quality habitats for fish and wildlife. A natural channel restoration philosophy guides the design and on the ground activities, allowing the channel to evolve into a state ofmore » dynamic equilibrium. Two years of planning, two years of restoration in Phases I and II, and one year post-restoration monitoring are complete. By excavating new bends and reconnecting historic meanders, Phase I and II channel realignment increased channel length by 3,060 feet, decreased channel gradient by 25 percent, and increased sinuosity from 1.7 to 2.3. Cross-sectional shapes and point bars were modified to maintain deep pool habitat at low flow and to reconnect the meadow floodplain. Improved soil moisture conditions will help sustain the 31,500 native riparian plantings reestablished within these two phases. Overall, short-term restoration performance was successful. Analyses of long-term parameters document either post-restoration baseline conditions or early stages of evolution toward desired conditions. An adaptive management strategy has helped to improve restoration designs, methods, and monitoring. Lessons learned are being transferred to a variety of audiences to advance the knowledge of ecological restoration and wise management of watersheds.« less

  16. Capability of applying morphometric parameters of relief in river basins for geomorphological zoning of a territory

    NASA Astrophysics Data System (ADS)

    Ivanov, M. A.; Yermolaev, O. P.

    2018-01-01

    Information about morphometric characteristics of relief is necessary for researches devoted to geographic characteristics of territory, its zoning, assessment of erosion processes, geoecological condition and others. For the Volga Federal District for the first time a spatial database of geomorphometric parameters 1: 200 000 scale was created, based on a river basin approach. Watersheds are used as a spatial units created by semi-automated method using the terrain and hydrological modeling techniques implemented in the TAS GIS and WhiteBox GIS. As input data DEMs SRTM and Aster GDEM and hydrographic network vectorized from topographic maps were used. Using DEM highlighted above for each river basin, basic morphometric relief characteristics such as mean height, slope steepness, slope length, height range, river network density and factor LS were calculated. Basins belonging to the geomorphological regions and landscape zones was determined, according to the map of geomorphological zoning and landscape map. Analysis of variance revealed a statistically significant relationship between these characteristics and geomorphological regions and landscape zones. Consequently, spatial trends of changes of analyzed morphometric characteristics were revealed.

  17. The Physical, Geochemical and Microbial Conditions and Processes in the Hyporheic Zone of a Large Tidally Influenced River: The Fraser River, British Columbia, Canada

    NASA Astrophysics Data System (ADS)

    Bianchin, M.; Roschinski, T.; Ross, K.; Leslie, S.; William, M.; Beckie, R.

    2006-12-01

    The objective of this research is to investigate the physical, chemical and biological conditions and processes that occur in the hyporheic zone of the lower Fraser River, British Columbia. The large flows of between 2000 and 10000 cubic meters per second, the 10 15 m deep, 250 m wide channel, the 1 m tidal fluctuations, the localized scour and redeposition of sediments during freshet and the strong geochemical contrast between groundwater and surface water distinguish this investigation from studies on smaller channels and streams and required the development of novel characterization tools and strategies. The geochemistry of water samples collected with a push-in profiler, bulk electrical conductivity (EC) measurements collected with a push-in tool and hydraulic head measurements indicate that groundwater principally discharges into the river approximately 100 m offshore in a 10 m wide band. River water and groundwater mix to a maximum depth of between 0.75 and 1.5 m. While hydraulic heads show strong tidal reversals, bulk EC profiles show only moderate changes during the tidal cycle. It was hypothesized that high iron (10's mg/L of Fe(II)) in reduced groundwater would precipitate from solution as secondary iron-oxide phases in the zone where groundwater mixes with aerobic river water. Sediments were collected with a freeze-shoe corer and depth profiles through the hyporheic zone and into the underlying aquifer were analyzed by selective extractions. The 15-30 mg/g of total extractable iron in both the aquifer and hyporheic zone is relatively high. The lack of noticeable iron accumulation in the hyporheic zone may indicate that iron precipitates on shallow sediments that are subsequently scoured from the river bed during freshet. Microbial DNA from sediments was analyzed using denaturing gradient gel electrophoresis and showed a relatively diverse community structure but an overall low biomass.

  18. Heterogeneous hyporheic zone dechlorination of a TCE groundwater plume discharging to an urban river reach.

    PubMed

    Freitas, Juliana G; Rivett, Michael O; Roche, Rachel S; Durrant Neé Cleverly, Megan; Walker, Caroline; Tellam, John H

    2015-02-01

    The typically elevated natural attenuation capacity of riverbed-hyporheic zones is expected to decrease chlorinated hydrocarbon (CHC) groundwater plume discharges to river receptors through dechlorination reactions. The aim of this study was to assess physico-chemical processes controlling field-scale variation in riverbed-hyporheic zone dechlorination of a TCE groundwater plume discharge to an urban river reach. The 50-m long pool-riffle-glide reach of the River Tame in Birmingham (UK) studied is a heterogeneous high energy river environment. The shallow riverbed was instrumented with a detailed network of multilevel samplers. Freeze coring revealed a geologically heterogeneous and poorly sorted riverbed. A chlorine number reduction approach provided a quantitative indicator of CHC dechlorination. Three sub-reaches of contrasting behaviour were identified. Greatest dechlorination occurred in the riffle sub-reach that was characterised by hyporheic zone flows, moderate sulphate concentrations and pH, anaerobic conditions, low iron, but elevated manganese concentrations with evidence of sulphate reduction. Transient hyporheic zone flows allowing input to varying riverbed depths of organic matter are anticipated to be a key control. The glide sub-reach displayed negligible dechlorination attributed to the predominant groundwater baseflow discharge condition, absence of hyporheic zone, transition to more oxic conditions and elevated sulphate concentrations expected to locally inhibit dechlorination. The tail-of-pool-riffle sub-reach exhibited patchy dechlorination that was attributed to sub-reach complexities including significant flow bypass of a low permeability, high organic matter, silty unit of high dechlorination potential. A process-based conceptual model of reach-scale dechlorination variability was developed. Key findings of practitioner relevance were: riverbed-hyporheic zone CHC dechlorination may provide only a partial, somewhat patchy barrier to CHC

  19. Novel contaminants identified in fish kills in the Red River watershed, 2011–2013

    EPA Science Inventory

    Provisional molecular weights and chemical formulas were assigned to four significant previously unidentified contaminants present during active fish kills in the Red River region of Oklahoma. The provisional identifications of these contaminants were determined using high-resolu...

  20. Questa baseline and pre-mining ground-water quality investigation 4. Historical surface-water quality for the Red River Valley, New Mexico, 1965 to 2001

    USGS Publications Warehouse

    Maest, Ann S.; Nordstrom, D. Kirk; LoVetere, Sara H.

    2004-01-01

    Historical water-quality samples collected from the Red River over the past 35 years were compiled, reviewed for quality, and evaluated to determine influences on water quality over time. Hydrologic conditions in the Red River were found to have a major effect on water quality. The lowest sulfate concentrations were associated with the highest flow events, especially peak, rising limb, and falling limb conditions. The highest sulfate concentrations were associated with the early part of the rising limb of summer thunderstorm events and early snowmelt runoff, transient events that can be difficult to capture as part of planned sampling programs but were observed in some of the data. The first increase in flows in the spring, or during summer thunderstorm events, causes a flushing of sulfide oxidation products from scars and mine-disturbed areas to the Red River before being diluted by rising river waters. A trend of increasing sulfate concentrations and loads over long time periods also was noted at the Questa Ranger Station gage on the Red River, possibly related to mining activities, because the same trend is not apparent for concentrations upstream. This trend was only apparent when the dynamic events of snowmelt and summer rainstorms were eliminated and only low-flow concentrations were considered. An increase in sulfate concentrations and loads over time was not seen at locations upstream from the Molycorp, Inc., molybdenum mine and downstream from scar areas. Sulfate concentrations and loads and zinc concentrations downstream from the mine were uniformly higher, and alkalinity values were consistently lower, than those upstream from the mine, suggesting that additional sources of sulfate, zinc, and acidity enter the river in the vicinity of the mine. During storm events, alkalinity values decreased both upstream and downstream of the mine, indicating that natural sources, most likely scar areas, can cause short-term changes in the buffering capacity of the Red

  1. Indicators of red squirrel (Tamiasciurus hudonicus) abundance in the whitebark pine zone

    USGS Publications Warehouse

    Mattson, D.J.; Reinhart, Daniel P.

    1996-01-01

    We investigated occupied squirrel middens and squirrel sightings and vocalizations as indicators of red squirrel (Tamiasciurus hudsonicus) abundance in the high-elevation whitebark pine (Pinus albicaulis) zone. Data were collected 1984-1989 from line transects located on 2 study sites in the Yellowstone ecosystem. We evaluated the performance of each measure on the basis of precision and biological considerations. We concluded that, of the 3 measures, active middens were the best indicator of red squirrel abundance. We also observed that the density of active middens dropped by 48%-66% between 1987 and 1989, following a severe drought and extensive wildfires that burned one of the study sites during 1988.

  2. 75 FR 38754 - Safety Zone; IJSBA World Finals; Lower Colorado River, Lake Havasu, AZ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ...-AA00 Safety Zone; IJSBA World Finals; Lower Colorado River, Lake Havasu, AZ AGENCY: Coast Guard, DHS... navigable waters of Lake Havasu on the lower Colorado River in support of the IJSBA World Finals. This... International Jet Sports Boating Association is sponsoring the IJSBA World Finals. The event will consist of 300...

  3. Continuous water-quality monitoring and regression analysis to estimate constituent concentrations and loads in the Red River of the North at Fargo and Grand Forks, North Dakota, 2003-12

    USGS Publications Warehouse

    Galloway, Joel M.

    2014-01-01

    The Red River of the North (hereafter referred to as “Red River”) Basin is an important hydrologic region where water is a valuable resource for the region’s economy. Continuous water-quality monitors have been operated by the U.S. Geological Survey, in cooperation with the North Dakota Department of Health, Minnesota Pollution Control Agency, City of Fargo, City of Moorhead, City of Grand Forks, and City of East Grand Forks at the Red River at Fargo, North Dakota, from 2003 through 2012 and at Grand Forks, N.Dak., from 2007 through 2012. The purpose of the monitoring was to provide a better understanding of the water-quality dynamics of the Red River and provide a way to track changes in water quality. Regression equations were developed that can be used to estimate concentrations and loads for dissolved solids, sulfate, chloride, nitrate plus nitrite, total phosphorus, and suspended sediment using explanatory variables such as streamflow, specific conductance, and turbidity. Specific conductance was determined to be a significant explanatory variable for estimating dissolved solids concentrations at the Red River at Fargo and Grand Forks. The regression equations provided good relations between dissolved solid concentrations and specific conductance for the Red River at Fargo and at Grand Forks, with adjusted coefficients of determination of 0.99 and 0.98, respectively. Specific conductance, log-transformed streamflow, and a seasonal component were statistically significant explanatory variables for estimating sulfate in the Red River at Fargo and Grand Forks. Regression equations provided good relations between sulfate concentrations and the explanatory variables, with adjusted coefficients of determination of 0.94 and 0.89, respectively. For the Red River at Fargo and Grand Forks, specific conductance, streamflow, and a seasonal component were statistically significant explanatory variables for estimating chloride. For the Red River at Grand Forks, a time

  4. Questa Baseline and Pre-Mining Ground-Water Quality Investigation 15.-Methods of Phase II and III Well Installation and Development and Results of Well Logging, Hydraulic Testing, and Water-Level Measurements in the Red River Valley, New Mexico, 2002-04

    USGS Publications Warehouse

    Blanchard, Paul J.; Bartolino, James R.; Donohoe, Lisa C.; McAda, Douglas P.; Naus, Cheryl A.; Morin, Roger H.

    2007-01-01

    In April 2001, the U.S. Geological Survey and the New Mexico Environment Department began a cooperative study to infer the pre-mining ground-water chemistry at the Molycorp molybdenum mine site in the Red River Valley of north- central New Mexico. This report is one in a series of reports that can be used to determine pre-mining ground-water conditions at the mine site. Weathering of hydrothermally altered bedrock in the study area has resulted in steep, highly erosive, and sparsely vegetated scar areas that are clearly visible from the ground and in aerial photographs. Runoff from intense summer rainfall over tributary drainages containing scar areas can transport large quantities of sediment and form debris fans where these tributaries join the Red River. Twenty-nine observation wells were installed in three phases as part of this study in the Red River Valley and tributary drainages. Eight Phase II observation wells were drilled using an air-rotary/hammer rig. Three Phase II and 10 phase III small-diameter wells were installed using a direct-push rig. Lithologic logs were recorded for all eight Phase II drilled wells. Borehole geophysical logging (including natural gamma, induction, and single-detector neutron) was conducted in three Phase II wells. Aquifer tests conducted during 2003 to estimate the hydraulic properties of debris-flow and Red River alluvial deposits in and near Straight Creek included a flow-meter survey, slug tests, and a pumping test. Results of a flow-meter survey in well SC-7A indicated that about 77 percent of the water entered the well from a 10-foot-thick zone near the top of the screened interval and about 23 percent of the water entered the well from a 15-foot-thick zone near the bottom of the screened interval. Slug tests, performed in 11 wells during June 3-5, 2003, indicated that the mean and median estimated hydraulic conductivities for debris-flow deposits were 15.25 and 15.35 feet per day, respectively, for bedrock were 0.12 and

  5. 77 FR 44468 - Safety Zone; Fireworks for NC NENA/APCO Conference, Cape Fear River; Wilmington, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-30

    ... 1625-AA00 Safety Zone; Fireworks for NC NENA/APCO Conference, Cape Fear River; Wilmington, NC AGENCY... on the navigable waters of Cape Fear River; Wilmington, NC in support of the Fireworks display for... shore of the Cape Fear River at Battleship Park. The fireworks debris fallout area will extend over the...

  6. 77 FR 64411 - Safety Zone; Cooper T. Smith Fireworks Event; Mobile River; Mobile, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-22

    ... 1625-AA00 Safety Zone; Cooper T. Smith Fireworks Event; Mobile River; Mobile, AL AGENCY: Coast Guard.... Smith Fireworks Event. Entry into, transiting or anchoring in this zone is prohibited to all vessels... safety hazards associated with a fireworks display. B. Basis and Purpose Cooper T. Smith Corp. has hired...

  7. Water mass interaction in the confluence zone of the Daning River and the Yangtze River--a driving force for algal growth in the Three Gorges Reservoir.

    PubMed

    Holbach, Andreas; Wang, Lijing; Chen, Hao; Hu, Wei; Schleicher, Nina; Zheng, Binghui; Norra, Stefan

    2013-10-01

    Increasing eutrophication and algal bloom events in the Yangtze River Three Gorges Reservoir, China, are widely discussed with regard to changed hydrodynamics and nutrient transport and distribution processes. Insights into water exchange and interaction processes between water masses related to large-scale water level fluctuations in the reservoir are crucial to understand water quality and eutrophication dynamics. Therefore, confluence zones of tributaries with the Yangtze River main stream are dedicated key interfaces. In this study, water quality data were recorded in situ and on-line in varying depths with the MINIBAT towed underwater multi-sensor system in the confluence zone of the Daning River and the Yangtze River close to Wushan City during 1 week in August 2011. Geostatistical evaluation of the water quality data was performed, and results were compared to phosphorus contents of selective water samples. The strongly rising water level throughout the measurement period caused Yangtze River water masses to flow upstream into the tributary and supply their higher nutrient and particulate loads into the tributary water body. Rapid algal growth and sedimentation occurred immediately when hydrodynamic conditions in the confluence zone became more serene again. Consequently, water from the Yangtze River main stream can play a key role in providing nutrients to the algal bloom stricken water bodies of its tributaries.

  8. 77 FR 37319 - Safety Zone for Fifth Coast Guard District Fireworks Display Pasquotank River; Elizabeth City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-21

    ...-AA00 Safety Zone for Fifth Coast Guard District Fireworks Display Pasquotank River; Elizabeth City, NC... the Pasquotank River, Elizabeth City, North Carolina. The fireworks display ordinarily originated from... vessel traffic in a portion of the Pasquotank River, Elizabeth City, North Carolina, during the event...

  9. 77 FR 66541 - Safety Zone; Alliance Road Bridge Demolition; Black Warrior River, Locust Fork; Birmingham, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-06

    ... 1625-AA00 Safety Zone; Alliance Road Bridge Demolition; Black Warrior River, Locust Fork; Birmingham... of the Alliance Road Bridge (Co. Rd. 61). Entry into, transiting or anchoring in this zone is.... [[Page 66542

  10. 76 FR 70647 - Safety Zone; Fireworks Display, Potomac River, National Harbor Access Channel, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-15

    ... Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone upon specified waters of the Potomac River. This action is necessary to provide for the safety of life on... maritime public in a portion of the Potomac River. DATES: This rule is effective from 6 p.m. on November 19...

  11. 77 FR 64722 - Safety Zone: Leukemia & Lymphoma Light the Night Walk Fireworks Display; Willamette River...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-23

    ... 1625-AA00 Safety Zone: Leukemia & Lymphoma Light the Night Walk Fireworks Display; Willamette River... Steele Bridge and the Burnside Bridge, and will be enforced during the Leukemia & Lymphoma Light the... Light the Night Walk Fireworks Display; Willamette River, Portland, OR. (a) Location. The following area...

  12. Genetic differentiation in red-bellied piranha populations (Pygocentrus nattereri, Kner, 1858) from the Solimões-Amazonas River.

    PubMed

    Dos Santos, Carlos Henrique Dos A; de Sá Leitão, Carolina S; Paula-Silva, Maria de N; Almeida-Val, Vera Maria F

    2016-06-01

    Red-bellied piranhas (Pygocentrus nattereri) are widely caught with different intensities throughout the region of Solimões-Amazonas River by local fishermen. Thus, the management of this resource is performed in the absence of any information on its genetic stock. P. nattereri is a voracious predator and widely distributed in the Neotropical region, and it is found in other regions of American continent. However, information about genetic variability and structure of wild populations of red-bellied piranha is unavailable. Here, we describe the levels of genetic diversity and genetic structure of red-bellied piranha populations collected at different locations of Solimões-Amazonas River system. We collected 234 red-bellied piranhas and analyzed throughout eight microsatellite markers. We identified high genetic diversity within populations, although the populations of lakes ANA, ARA, and MAR have shown some decrease in their genetic variability, indicating overfishing at these communities. Was identified the existence of two biological populations when the analysis was taken altogether at the lakes of Solimões-Amazonas River system, with significant genetic differentiation between them. The red-bellied piranha populations presented limited gene flow between two groups of populations, which were explained by geographical distance between these lakes. However, high level of gene flow was observed between the lakes within of the biological populations. We have identified high divergence between the Catalão subpopulation and all other subpopulations. We suggest the creation of sustainable reserve for lakes near the city of Manaus to better manage and protect this species, whose populations suffer from both extractive and sport fishing.

  13. Risk of Unwanted Sex for College Women: Evidence for a Red Zone

    ERIC Educational Resources Information Center

    Kimble, Matthew; Neacsiu, Andrada D.; Flack, William F., Jr.; Horner, Jessica

    2008-01-01

    Objective: University and college health and counseling centers frequently warn female students about the "red zone"--a period early in a student's first year at college during which she may be at higher risk for unwanted sexual experiences (UWS). The authors designed this study to assess temporal risk for UWS in 1st- and 2nd-year college women.…

  14. Simulation of constituent transport in the Red River of the North basin, North Dakota and Minnesota, during unsteady-flow conditions, 1977 and 2003-04

    USGS Publications Warehouse

    Nustad, Rochelle A.; Bales, Jerad D.

    2006-01-01

    The Bureau of Reclamation identified eight water-supply alternatives for the Red River Valley Water Supply Project. Of those alternatives, six were considered for this study. Those six alternatives include a no-action alternative, two in-basin alternatives, and three interbasin alternatives. To address concerns of stakeholders and to provide information for an environmental impact statement, the U.S. Geological Survey, in cooperation with the Bureau of Reclamation, developed and applied a water-quality model to simulate the transport of total dissolved solids, sulfate, chloride, sodium, and total phosphorus during unsteady-flow conditions and to simulate the effects of the water-supply alternatives on water quality in the Red River and the Sheyenne River. The physical domain of the model, hereinafter referred to as the Red River model, includes the Red River from Wahpeton, North Dakota, to Emerson, Manitoba, and the Sheyenne River from below Baldhill Dam, North Dakota, to the confluence with the Red River. Boundary conditions were specified for May 15 through October 31, 2003, and January 15 through June 30, 2004. Measured streamflow data were available for August 1 through October 31, 2003, and April 1 through June 30, 2004, but water-quality data were available only for September 15 through 16, 2003, and May 10 through 13, 2004. The water-quality boundary conditions were assumed to be time invariant for the entire calibration period and to be equal to the measured value. The average difference between the measured and simulated streamflows was less than 4 percent for both calibration periods, and most differences were less than 2 percent. The average differences are considered to be acceptable because the differences are less than 5 percent, or the same as the error that would be expected in a typical streamflow measurement. Simulated total dissolved solids, sulfate, chloride, and sodium concentrations generally were less than measured concentrations for both

  15. Questa Baseline and Premining Ground-Water Quality Investigation 18. Characterization of Brittle Structures in the Questa Caldera and Their Potential Influence on Bedrock Ground-Water Flow, Red River Valley, New Mexico

    USGS Publications Warehouse

    Caine, Jonathan S.

    2006-01-01

    This report presents a field-based characterization of fractured and faulted crystalline bedrock in the southern portion of the Questa caldera and its margin. The focus is (1) the identification and description of brittle geological structures and (2) speculation on the potential effects and controls that these structures might have on the potential fluxes of paleo to present-day ground water in relation to natural or mining-related metal and acid loads to surface and ground water. The entire study area is pervasively jointed with a few distinctive patterns such as orthogonal, oblique orthogonal, and conjugate joint sets. Joint intensity, the number of joints measured per unit line length, is high to extreme. Three types of fault zones are present that include partially silicified, low- and high-angle faults with well-developed damage zones and clay-rich cores and high-angle, unsilicified open faults. Conceptually, the joint networks can be thought of as providing the background porosity and permeability structure of the bedrock aquifer system. This background is cut by discrete entities such as the faults with clay-rich cores and open faults that may act as important hydrologic heterogeneities. The southern caldera margin runs parallel to the course of the Red River Valley, whose incision has left an extreme topographic gradient at high angles to the river. Many of the faults and fault intersections run parallel to this assumed hydraulic gradient; thus, these structures have great potential to provide paleo and present-day, discrete and anisotropic pathways for solute transport within the otherwise relatively low porosity and permeability bedrock background aquifer system. Although brittle fracture networks and faults are pervasive and complex, simple Darcy calculations are used to estimate the hydraulic conductivity and potential ground-water discharges of the bedrock aquifer, caldera margin, and other faults in order to gain insight into the potential

  16. 76 FR 26607 - Safety Zone; Air Power Over Hampton Roads, Back River, Hampton, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-09

    ...-AA00 Safety Zone; Air Power Over Hampton Roads, Back River, Hampton, VA AGENCY: Coast Guard, DHS... the safety of life on navigable waters during the Air Power Over Hampton Roads Air Show. This action.... This safety zone is in the interest of public safety during the Hampton Roads Air Show and will be...

  17. Dissolved organic matter dynamics in the oligo/meso-haline zone of wetland-influenced coastal rivers

    NASA Astrophysics Data System (ADS)

    Maie, Nagamitsu; Sekiguchi, Satoshi; Watanabe, Akira; Tsutsuki, Kiyoshi; Yamashita, Youhei; Melling, Lulie; Cawley, Kaelin M.; Shima, Eikichi; Jaffé, Rudolf

    2014-08-01

    Wetlands are key components in the global carbon cycle and export significant amounts of terrestrial carbon to the coastal oceans in the form of dissolved organic carbon (DOC). Conservative behavior along the salinity gradient of DOC and chromophoric dissolved organic matter (CDOM) has often been observed in estuaries from their freshwater end-member (salinity = 0) to the ocean (salinity = 35). While the oligo/meso-haline (salinity < 10) tidal zone of upper estuaries has been suggested to be more complex and locally influenced by geomorphological and hydrological features, the environmental dynamics of dissolved organic matter (DOM) and the environmental drivers controlling its source, transport, and fate have scarcely been evaluated. Here, we investigated the distribution patterns of DOC and CDOM optical properties determined by UV absorbance at 254 nm (A254) and excitation-emission matrix (EEM) fluorescence coupled with parallel factor analysis (PARAFAC) along the lower salinity range (salinity < 10) of the oligo/meso-haline zone for three distinct wetland-influenced rivers; namely the Bekanbeushi River, a cool-temperate river with estuarine lake in Hokkaido, Japan, the Harney River, a subtropical river with tidally-submerged mangrove fringe in Florida, USA, and the Judan River, a small, acidic, tropical rainforest river in Borneo, Malaysia. For the first two rivers, a clear decoupling between DOC and A254 was observed, while these parameters showed similar conservative behavior for the third. Three distinct EEM-PARAFAC models established for each of the rivers provided similar spectroscopic characteristics except for some unique fluorescence features observed for the Judan River. The distribution patterns of PARAFAC components suggested that the inputs from plankton and/or submerged aquatic vegetation can be important in the Bekanbeushi River. Further, DOM photo-products formed in the estuarine lake were also found to be transported upstream. In the Harney River

  18. The feasibility of solar energy usage on Red River Army Depot. Final report

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

    Crowder, G.W.

    This feasibility study considers the usage of solar energy to heat and cool the main office buildings on the Red River Army Depot, Texarkana Texas. Solar energy costs are compared with the present heating and cooling system costs with an economic analysis using the annual worth and present worth methods. (GRA)

  19. Using LiDAR datasets to improve HSPF water quality modeling in the Red River of the North Basin

    NASA Astrophysics Data System (ADS)

    Burke, M. P.; Foreman, C. S.

    2013-12-01

    The Red River of the North Basin (RRB), located in the lakebed of ancient glacial Lake Agassiz, comprises one of the flattest landscapes in North America. The topography of the basin, coupled with the Red River's direction of flow from south to north results in a system that is highly susceptible to flooding. The magnitude and frequency of flood events in the RRB has prompted several multijurisdictional projects and mitigation efforts. In response to the devastating 1997 flood, an International Joint Commission sponsored task force established the need for accurate elevation data to help improve flood forecasting and better understand risks. This led to the International Water Institute's Red River Basin Mapping Initiative, and the acquisition LiDAR Data for the entire US portion of the RRB. The resulting 1 meter bare earth digital elevation models have been used to improve hydraulic and hydrologic modeling within the RRB, with focus on flood prediction and mitigation. More recently, these LiDAR datasets have been incorporated into Hydrological Simulation Program-FORTRAN (HSPF) model applications to improve water quality predictions in the MN portion of the RRB. RESPEC is currently building HSPF model applications for five of MN's 8-digit HUC watersheds draining to the Red River, including: the Red Lake River, Clearwater River, Sandhill River, Two Rivers, and Tamarac River watersheds. This work is being conducted for the Minnesota Pollution Control Agency (MPCA) as part of MN's statewide watershed approach to restoring and protecting water. The HSPF model applications simulate hydrology (discharge, stage), as well as a number of water quality constituents (sediment, temperature, organic and inorganic nitrogen, total ammonia, organic and inorganic phosphorus, dissolved oxygen and biochemical oxygen demand, and algae) continuously for the period 1995-2009 and are formulated to provide predictions at points of interest within the watersheds, such as observation gages

  20. 76 FR 54382 - Safety Zone; Labor Day Fireworks, Ancarrows Landing Park, James River, Richmond, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-01

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2011-0546] RIN 1625-AA00 Safety Zone; Labor Day Fireworks, Ancarrows Landing Park, James River, Richmond, VA AGENCY: Coast... notice of proposed rulemaking (NPRM) entitled Safety Zone; Labor Day Fireworks, Ancarrows Landing Park...

  1. Behavior of 226Ra in the Mississippi River mixing zone

    NASA Astrophysics Data System (ADS)

    Moore, Daniel G.; Scott, Martha R.

    1986-12-01

    The behavior of 226Ra in the Mississippi River mixing zone is strongly nonconservative and includes desorption similar to that reported for the Hudson, Pee Dee, and Amazon rivers. However, dissolved and desorbed 226Ra concentrations in the Mississippi are 2 to 5 times greater than in the other rivers at the same salinity. Radium concentrations vary inversely with the water discharge rate. The 226Ra desorption maximum occurs at a salinity of 5.0, much lower than the 18 to 28 salinity values for the maxima of the other three rivers. High concentrations of dissolved 226Ra (up to 82 dpm per 100 L) and the low salinity values for the desorption maximum in the Mississippi River result from three major factors. Suspended sediments include a large fraction of montmorillonite, which gives the sediment a high cation exchange capacity, 0.54 meq/g. The average suspended sediment load is large, about 510 mg/L, and contains 1.9 dpm/g desorbable 226Ra. The dissolved 226Ra river water end-member (9.6 dpm per 100 L) is higher than in surface seawater. The annual contribution of 226Ra to the ocean from the Mississippi River is 3.7 × 1014 dpm/yr, based on data from three cruises. Evidence of flux of 226Ra from estuarine and shelf sediments is common in vertical profile sampling of the deltaic waters but is not reflected in calculations made with an "apparent" river water Ra value extrapolated to zero salinity.

  2. A history of flooding in the Red River Basin

    USGS Publications Warehouse

    Ryberg, Karen R.; Macek-Rowland, Kathleen M.; Banse, Tara A.; Wiche, Gregg J.; Martin, Cathy R.

    2007-01-01

    The U.S. Geological Survey (USGS), one of the principal Federal agencies responsible for the collection and interpretation of water-resources data, works with other Federal, State, local, tribal, and academic entities to ensure that accurate and timely data are available for making decisions regarding public welfare and property during natural disasters and to increase public awareness of the hazards that occur with such disasters. The Red River of the North Basin has a history of flooding and this poster is designed to increase public awareness of that history and of the factors that contribute to flooding.

  3. 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.

  4. 33 CFR 165.166 - Safety Zone: Macy's July 4th Fireworks, East River, NY.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone: Macy's July 4th... § 165.166 Safety Zone: Macy's July 4th Fireworks, East River, NY. (a) Regulated area. The following area.... on July 4th. If the event is cancelled due to inclement weather then this section is in effect from 6...

  5. 33 CFR 165.166 - Safety Zone: Macy's July 4th Fireworks, East River, NY.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone: Macy's July 4th... § 165.166 Safety Zone: Macy's July 4th Fireworks, East River, NY. (a) Regulated area. The following area.... on July 4th. If the event is cancelled due to inclement weather then this section is in effect from 6...

  6. 33 CFR 165.166 - Safety Zone: Macy's July 4th Fireworks, East River, NY.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zone: Macy's July 4th... § 165.166 Safety Zone: Macy's July 4th Fireworks, East River, NY. (a) Regulated area. The following area.... on July 4th. If the event is cancelled due to inclement weather then this section is in effect from 6...

  7. 33 CFR 165.166 - Safety Zone: Macy's July 4th Fireworks, East River, NY.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone: Macy's July 4th... § 165.166 Safety Zone: Macy's July 4th Fireworks, East River, NY. (a) Regulated area. The following area.... on July 4th. If the event is cancelled due to inclement weather then this section is in effect from 6...

  8. Influences of the unsaturated, saturated, and riparian zones on the transport of nitrate near the Merced River, California, USA

    USGS Publications Warehouse

    Domagalski, Joseph L.; Phillips, S.P.; Bayless, E.R.; Zamora, C.; Kendall, C.; Wildman, R.A.; Hering, J.G.

    2008-01-01

    Transport and transformation of nitrate was evaluated along a 1-km groundwater transect from an almond orchard to the Merced River, California, USA, within an irrigated agricultural setting. As indicated by measurements of pore-water nitrate and modeling using the root zone water quality model, about 63% of the applied nitrogen was transported through a 6.5-m unsaturated zone. Transport times from recharge locations to the edge of a riparian zone ranged from approximately 6 months to greater than 100 years. This allowed for partial denitrification in horizons having mildly reducing conditions, and essentially no denitrification in horizons with oxidizing conditions. Transport times across a 50-100-m-wide riparian zone of less than a year to over 6 years and more strongly reducing conditions resulted in greater rates of denitrification. Isotopic measurements and concentrations of excess N2 in water were indicative of denitrification with the highest rates below the Merced River. Discharge of water and nitrate into the river was dependent on gradients driven by irrigation or river stage. The results suggest that the assimilative capacity for nitrate of the groundwater system, and particularly the riverbed, is limiting the nitrate load to the Merced River in the study area. ?? Springer-Verlag 2007.

  9. Geological Studies of the Salmon River Suture Zone and Adjoining Areas, West-Central Idaho and Eastern Oregon

    USGS Publications Warehouse

    Kuntz, Mel A.; Snee, Lawrence W.

    2007-01-01

    The papers in this volume describe petrologic, structural, and geochemical studies related to geographic areas adjacent to and including the Salmon River suture zone. We therefore start this volume by defining and giving a general description of that suture zone. The western margin of the North American continent was the setting for complex terrane accretion and large-scale terrane translation during Late Cretaceous and Eocene time. In western Idaho, the boundary that separates the Paleozoic-Mesozoic accreted oceanic, island-arc rocks on the west from Precambrian continental metamorphic and sedimentary rocks on the east is called the Salmon River suture zone (SRSZ). Readers will note that the term 'Salmon River suture zone' is used in the title of this volume and in the text of several of the papers and the term 'western Idaho suture zone' is used in several other papers in this volume. Both terms refer to the same geologic feature and reflect historical usage and custom; thus no attempt has been made by the editors to impose or demand a single term by the various authors of this volume. The suture zone is marked by strong lithologic and chemical differences. Rocks adjacent to the suture zone are characterized by high-grade metamorphism and much structural deformation. In addition, the zone was the locus of emplacement of plutons ranging in composition from tonalite to monzogranite during and after the final stages of accretion of the oceanic terrane to the North American continent. The contents of this paper consists of seven chapters.

  10. Impact of anthropogenic activities on water quality and plankton communities in the Day River (Red River Delta, Vietnam).

    PubMed

    Hoang, Hang Thi Thu; Duong, Thi Thuy; Nguyen, Kien Trung; Le, Quynh Thi Phuong; Luu, Minh Thi Nguyet; Trinh, Duc Anh; Le, Anh Hung; Ho, Cuong Tu; Dang, Kim Dinh; Némery, Julien; Orange, Didier; Klein, Judith

    2018-01-08

    Planktons are a major component of food web structure in aquatic ecosystems. Their distribution and community structure are driven by the combination and interactions between physical, chemical, and biological factors within the environment. In the present study, water quality and the community structure of phytoplankton and zooplankton were monthly investigated from January to December 2015 at 11 sampling sites along the gradient course of the Day River (Red River Delta, northern Vietnam). The study demonstrated that the Day River was eutrophic with the average values of total phosphorus concentration 0.17 mg/L, total nitrogen concentration 1.98 mg/L, and Chl a 54 μg/L. Microscopic plankton analysis showed that phytoplankton comprised 87 species belonging to seven groups in which Chlorophyceae, Bacillariophyceae, and Cyanobacteria accounted for the most important constituents of the river's phytoplankton assemblage. A total 53 zooplankton species belonging to three main groups including Copepoda, Cladocera, and Rotatoria were identified. Plankton biomass values were greatest in rainy season (3002.10-3 cell/L for phytoplankton and 12.573 individuals/m 3 for zooplankton). Using principal correspondence and Pearson correlation analyses, it was found that the Day River was divided into three main site groups based on water quality and characteristics of plankton community. Temperature and nutrients (total phosphorus and total nitrogen) are key factors regulating plankton abundance and distribution in the Day River.

  11. Estimating the Spatial Extent of Unsaturated Zones in Heterogeneous River-Aquifer Systems

    NASA Astrophysics Data System (ADS)

    Schilling, Oliver S.; Irvine, Dylan J.; Hendricks Franssen, Harrie-Jan; Brunner, Philip

    2017-12-01

    The presence of unsaturated zones at the river-aquifer interface has large implications on numerous hydraulic and chemical processes. However, the hydrological and geological controls that influence the development of unsaturated zones have so far only been analyzed with simplified conceptualizations of flow processes, or homogeneous conceptualizations of the hydraulic conductivity in either the aquifer or the riverbed. We systematically investigated the influence of heterogeneous structures in both the riverbed and the aquifer on the development of unsaturated zones. A stochastic 1-D criterion that takes both riverbed and aquifer heterogeneity into account was developed using a Monte Carlo sampling technique. The approach allows the reliable estimation of the upper bound of the spatial extent of unsaturated areas underneath a riverbed. Through systematic numerical modeling experiments, we furthermore show that horizontal capillary forces can reduce the spatial extent of unsaturated zones under clogged areas. This analysis shows how the spatial structure of clogging layers and aquifers influence the propensity for unsaturated zones to develop: In riverbeds where clogged areas are made up of many small, spatially disconnected patches with a diameter in the order of 1 m, unsaturated areas are less likely to develop compared to riverbeds where large clogged areas exist adjacent to unclogged areas. A combination of the stochastic 1-D criterion with an analysis of the spatial structure of the clogging layers and the potential for resaturation can help develop an appropriate conceptual model and inform the choice of a suitable numerical simulator for river-aquifer systems.

  12. Red River barrier and Pleistocene climatic fluctuations shaped the genetic structure of Microhyla fissipes complex (Anura: Microhylidae) in southern China and Indochina

    PubMed Central

    Yuan, Zhi-Yong; Suwannapoom, Chatmongkon; Yan, Fang; Poyarkov, Nikolay A.; Nguyen, Sang Ngoc; Chen, Hong-man; Chomdej, Siriwadee; Murphy, Robert W.

    2016-01-01

    South China and Indochina host striking species diversity and endemism. Complex tectonic and climatic evolutions appear to be the main drivers of the biogeographic patterns. In this study, based on the geologic history of this region, we test 2 hypotheses using the evolutionary history of Microhyla fissipes species complex. Using DNA sequence data from both mitochondrial and nuclear genes, we first test the hypothesis that the Red River is a barrier to gene flow and dispersal. Second, we test the hypothesis that Pleistocene climatic cycling affected the genetic structure and population history of these frogs. We detect 2 major genetic splits that associate with the Red River. Time estimation suggests that late Miocene tectonic movement associated with the Red River drove their diversification. Species distribution modeling (SDM) resolves significant ecological differences between sides of the Red River. Thus, ecological divergence also probably promoted and maintained the diversification. Genogeography, historical demography, and SDM associate patterns in southern China with climate changes of the last glacial maximum (LGM), but not Indochina. Differences in geography and climate between the 2 areas best explain the discovery. Responses to the Pleistocene glacial–interglacial cycling vary among species and regions. PMID:29491943

  13. Red River barrier and Pleistocene climatic fluctuations shaped the genetic structure of Microhyla fissipes complex (Anura: Microhylidae) in southern China and Indochina.

    PubMed

    Yuan, Zhi-Yong; Suwannapoom, Chatmongkon; Yan, Fang; Poyarkov, Nikolay A; Nguyen, Sang Ngoc; Chen, Hong-Man; Chomdej, Siriwadee; Murphy, Robert W; Che, Jing

    2016-12-01

    South China and Indochina host striking species diversity and endemism. Complex tectonic and climatic evolutions appear to be the main drivers of the biogeographic patterns. In this study, based on the geologic history of this region, we test 2 hypotheses using the evolutionary history of Microhyla fissipes species complex. Using DNA sequence data from both mitochondrial and nuclear genes, we first test the hypothesis that the Red River is a barrier to gene flow and dispersal. Second, we test the hypothesis that Pleistocene climatic cycling affected the genetic structure and population history of these frogs. We detect 2 major genetic splits that associate with the Red River. Time estimation suggests that late Miocene tectonic movement associated with the Red River drove their diversification. Species distribution modeling (SDM) resolves significant ecological differences between sides of the Red River. Thus, ecological divergence also probably promoted and maintained the diversification. Genogeography, historical demography, and SDM associate patterns in southern China with climate changes of the last glacial maximum (LGM), but not Indochina. Differences in geography and climate between the 2 areas best explain the discovery. Responses to the Pleistocene glacial-interglacial cycling vary among species and regions.

  14. Sediment loads in the Red River of the North and selected tributaries near Fargo, North Dakota, 2010--2011

    USGS Publications Warehouse

    Galloway, Joel M.; Nustad, Rochelle A.

    2012-01-01

    Natural-resource agencies are concerned about possible geomorphic effects of a proposed diversion project to reduce the flood risk in the Fargo-Moorhead metropolitan area. The U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers collected data in the spring of 2010 and 2011, and from June to November 2011, during rainfall-runoff events and base-flow conditions to provide information on sediment transport. The data were used to examine sediment concentrations, loads, and particle-size distributions at nine selected sites in the Red River and its tributaries near the Fargo-Moorhead metropolitan area. Suspended-sediment concentration varied among sites in 2010 and 2011. The least suspended-sediment concentrations were measured at the Red River (site 1) and the Buffalo River (site 9), and the greatest concentrations were measured at the two Sheyenne River sites (sites 3 and 4). Estimated daily suspended-sediment loads were highly variable in 2010 and 2011 in the Red River and its tributaries, with the greatest loads occurring in the spring and the smallest loads occurring in the winter. For the Red River, daily suspended-sediment loads ranged from 26 to 3,500 tons per day at site 1 and from 30 to 9,010 tons per day at site 2. For the Sheyenne River, daily loads ranged from less than 10 to 10,200 tons per day at site 3 and from less than 10 to 4,530 tons per day at site 4. The mean daily load was 191 tons per day in 2010 and 377 tons per day in 2011 for the Maple River, and 610 tons per day in 2011 for the Wild Rice River (annual loads were not computed for 2010). For the three sites that were only sampled in 2011 (sites 7, 8 and 9), the mean daily suspended-sediment loads ranged from 40 tons per day at the Lower Branch Rush River (site 8) to 118 tons per day at the Buffalo River (site 9). For sites that had estimated loads in 2010 and 2011 (sites 1–5), estimated annual (March–November) suspended-sediment loads were greater in 2011 compared to

  15. 33 CFR 165.554 - Security Zone; Three Mile Island Generating Station, Susquehanna River, Dauphin County...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Three Mile Island... Areas Fifth Coast Guard District § 165.554 Security Zone; Three Mile Island Generating Station... waters of the Susquehanna River in the vicinity of the Three Mile Island Generating Station bounded by a...

  16. 33 CFR 165.554 - Security Zone; Three Mile Island Generating Station, Susquehanna River, Dauphin County...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zone; Three Mile Island... Areas Fifth Coast Guard District § 165.554 Security Zone; Three Mile Island Generating Station... waters of the Susquehanna River in the vicinity of the Three Mile Island Generating Station bounded by a...

  17. 33 CFR 165.554 - Security Zone; Three Mile Island Generating Station, Susquehanna River, Dauphin County...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zone; Three Mile Island... Areas Fifth Coast Guard District § 165.554 Security Zone; Three Mile Island Generating Station... waters of the Susquehanna River in the vicinity of the Three Mile Island Generating Station bounded by a...

  18. 33 CFR 165.554 - Security Zone; Three Mile Island Generating Station, Susquehanna River, Dauphin County...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zone; Three Mile Island... Areas Fifth Coast Guard District § 165.554 Security Zone; Three Mile Island Generating Station... waters of the Susquehanna River in the vicinity of the Three Mile Island Generating Station bounded by a...

  19. 33 CFR 165.554 - Security Zone; Three Mile Island Generating Station, Susquehanna River, Dauphin County...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zone; Three Mile Island... Areas Fifth Coast Guard District § 165.554 Security Zone; Three Mile Island Generating Station... waters of the Susquehanna River in the vicinity of the Three Mile Island Generating Station bounded by a...

  20. Linking river, floodplain, and vadose zone hydrology to improve restoration of a coastal river affected by saltwater intrusion.

    PubMed

    Kaplan, D; Muñoz-Carpena, R; Wan, Y; Hedgepeth, M; Zheng, F; Roberts, R; Rossmanith, R

    2010-01-01

    Floodplain forests provide unique ecological structure and function, which are often degraded or lost when watershed hydrology is modified. Restoration of damaged ecosystems requires an understanding of surface water, groundwater, and vadose (unsaturated) zone hydrology in the floodplain. Soil moisture and porewater salinity are of particular importance for seed germination and seedling survival in systems affected by saltwater intrusion but are difficult to monitor and often overlooked. This study contributes to the understanding of floodplain hydrology in one of the last bald cypress [Taxodium distichum (L.) Rich.] floodplain swamps in southeast Florida. We investigated soil moisture and porewater salinity dynamics in the floodplain of the Loxahatchee River, where reduced freshwater flow has led to saltwater intrusion and a transition to salt-tolerant, mangrove-dominated communities. Twenty-four dielectric probes measuring soil moisture and porewater salinity every 30 min were installed along two transects-one in an upstream, freshwater location and one in a downstream tidal area. Complemented by surface water, groundwater, and meteorological data, these unique 4-yr datasets quantified the spatial variability and temporal dynamics of vadose zone hydrology. Results showed that soil moisture can be closely predicted based on river stage and topographic elevation (overall Nash-Sutcliffe coefficient of efficiency = 0.83). Porewater salinity rarely exceeded tolerance thresholds (0.3125 S m(-1)) for bald cypress upstream but did so in some downstream areas. This provided an explanation for observed vegetation changes that both surface water and groundwater salinity failed to explain. The results offer a methodological and analytical framework for floodplain monitoring in locations where restoration success depends on vadose zone hydrology and provide relationships for evaluating proposed restoration and management scenarios for the Loxahatchee River.

  1. 77 FR 38723 - Safety Zones; Sellwood Bridge Project, Willamette River; Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-29

    ...-AA00 Safety Zones; Sellwood Bridge Project, Willamette River; Portland, OR AGENCY: Coast Guard, DHS... effect throughout the duration of the construction and renewal of the Sellwood Bridge located on the... the construction area while transiting in the vicinity of the Sellwood Bridge project; however, the...

  2. 77 FR 14970 - Safety Zones; Sellwood Bridge Project, Willamette River; Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ...-AA00 Safety Zones; Sellwood Bridge Project, Willamette River; Portland, OR AGENCY: Coast Guard, DHS... effect throughout the duration of the construction and renewal of the Sellwood Bridge on the Willamette... construction area while transiting in the vicinity of the Sellwood Bridge project; however, the establishment...

  3. 77 FR 30443 - Safety Zone; Alexandria Bay Chamber of Commerce, St. Lawrence River, Alexandria Bay, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-23

    ...-AA00 Safety Zone; Alexandria Bay Chamber of Commerce, St. Lawrence River, Alexandria Bay, NY AGENCY... Commerce fireworks display. The safety zone established by this proposed rule is necessary to protect... spectators and vessels during the Alexandria Bay Chamber of Commerce fireworks display. Regulatory Analyses...

  4. Water quality of streams in the Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1970-2001

    USGS Publications Warehouse

    Tornes, Lan H.

    2005-01-01

    Data for the Red River of the North (Red River) Basin in Minnesota, North Dakota, and South Dakota were analyzed to determine whether the water quality of streams in the basin is adequate to meet future needs. For the Red River at Emerson, Manitoba, site, pH values, water temperatures, and dissolved-oxygen concentrations generally were within the criteria established for the protection of aquatic life. Dissolved-solids concentrations ranged from 245 to 1,100 milligrams per liter. Maximum sulfate and chloride concentrations were near, but did not exceed, the established secondary maximum contaminant level. The trace elements considered potentially harmful generally were at concentrations that were less than the established guidelines, standards, and criteria. The concentrations of lead that were detected may have occurred as a result of sample contamination.  For the Red River upstream from Emerson, Manitoba, sites, pH and other field values rarely exceeded the criteria established for the protection of aquatic life. Many constituent concentrations for the Red River below Fargo, N. site exceeded water-quality guidelines, standards, and criteria. However, the trace-element exceedances could be natural or could be related to pollution or sample contamination. Many of the tributaries in the western part of the Red River Basin had median specific-conductance values that were greater than 1,000 microsiemens per centimeter. Sulfate concentrations occasionally exceeded the established drinking-water standard. Median arsenic concentrations were 6 micrograms per liter or less, and maximum concentrations rarely exceeded the 10-microgram-per-liter drinking-water standard that is scheduled to take effect in 2006. The small concentrations of lead, mercury, and selenium that occasionally were detected may have been a result of sample contamination or other factors. The tributaries in the eastern part of the Red River Basin had median specific-conductance values that were less

  5. 76 FR 23524 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-27

    ...-AA00 Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago... safety zone from Brandon Road Lock and Dam to Lake Michigan. This proposed safety zone will cover 77.... This TIR established a 77 mile long safety zone from Brandon Road Lock to Lake Michigan in Chicago, IL...

  6. Use of map analysis to elucidate flooding in an Australian Riparian River Red Gum Forest

    NASA Astrophysics Data System (ADS)

    Bren, L. J.; O'Neill, I. C.; Gibbs, N. L.

    1988-07-01

    Red gum (Eucalyptus camaldulensis) forests occur on extensive floodplains along the river Murray in Australia. This type of forest is unusual because of its high quality in a semiarid area, the absence of woody species other than red gum, and its survival on a deep, intractable, swelling clay soil of depths exceeding 20 m. This soil probably acts as an aquiclude. The forests require flooding to thrive and regenerate. For many years there has been speculation that irrigation regulation of the river was reducing forest flooding. A grid cell analysis of flood maps of areas flooded over a period of 22 years showed that vegetation communities and forest site quality were statistically related to the flood frequencies of sites. The percentage of forest inundated was dependent on the peak daily flow during the period of inundation. A historical analysis of the estimated percentage of forest inundated showed a substantial influence of river regulation on both timing and extent of inundation. Estimates of historical floodings showed that the environment is one that changes rapidly from wetland to dry land. Although not without limitations, the analysis produced information not available from other sources.

  7. 78 FR 37963 - Safety Zone; Fifth Coast Guard District Fireworks Display Cape Fear River; Wilmington, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-25

    ...-AA00 Safety Zone; Fifth Coast Guard District Fireworks Display Cape Fear River; Wilmington, NC AGENCY... District. This regulation applies to only one recurring fireworks event, held adjacent to the Cape Fear... of the Cape Fear River, Wilmington, North Carolina, during the event. DATES: This rule will be...

  8. 77 FR 75016 - Safety Zone: Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-19

    ...-AA00 Safety Zone: Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and... final rule establishing a safety zone around the Gilmerton Bridge center span barge. Inadvertently, this... Gilmerton Bridge center span barge (77 FR 73541). Inadvertently, this rule included an error in the...

  9. 76 FR 65609 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-24

    ... Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal...

  10. 33 CFR 334.500 - St. Johns River, Atlantic Ocean, Sherman Creek; restricted areas and danger zone, Naval Station...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false St. Johns River, Atlantic Ocean... AND RESTRICTED AREA REGULATIONS § 334.500 St. Johns River, Atlantic Ocean, Sherman Creek; restricted areas and danger zone, Naval Station Mayport, Florida. (a) The areas. (1) The St. Johns River restricted...

  11. Questa baseline and pre-mining ground-water quality investigation. 23. Quantification of mass loading from mined and unmined areas along the Red River, New Mexico

    USGS Publications Warehouse

    Kimball, Briant A.; Nordstrom, D. Kirk; Runkel, Robert L.; Vincent, Kirk R.; Verplanck, Phillip L.

    2006-01-01

    Along the course of the Red River, between the town of Red River, New Mexico, and the U.S. Geological Survey streamflow-gaging station near Questa, New Mexico, there are several catchments that contain hydrothermally altered bedrock. Some of these alteration zones have been mined and others have not, presenting an opportunity to evaluate differences that may exist in the mass loading of metals from mined and unmined sections. Such differences may help to define pre-mining conditions. Spatially detailed chemical sampling at stream and inflow sites occurred during low-flow conditions in 2001 and 2002, and during the synoptic sampling, stream discharge was calculated by tracer dilution. Discharge from most catchments, particularly those with alteration scars, occurred as ground water in large debris fans, which generally traveled downstream in an alluvial aquifer until geomorphic constraints caused it to discharge at several locations along the study reach. Locations of discharge zones were indicated by the occurrence of numerous inflows as seeps and springs. Inflows were classified into four groups, based on differences in chemical character, which ranged from near-neutral water showing no influence of mining or alteration weathering to acidic water with high concentrations of metals and sulfate. Acidic, metal-rich inflows occurred from mined and unmined areas, but the most-acidic inflow water that had the highest concentrations of metals and sulfate only occurred downstream from the mine. Locations of ground-water inflow also corresponded to substantial changes in stream chemistry and mass loading of metals and sulfate. The greatest loading occurred in the Cabin Springs, Thunder Bridge, and Capulin Canyon sections, which all occur downstream from the mine. A distinct chemical character and substantially greater loading in water downstream from the mine suggest that there could be impacts from mining that can be distinguished from the water draining from unmined

  12. Implications of river morphology response to Dien Bien Phu fault in NW Vietnam

    NASA Astrophysics Data System (ADS)

    Lai, K.; Chen, Y.; Lam, D.

    2007-12-01

    In northern Vietnam, most rivers are flowing southeastward sub- or parallel to the valley of Red River and characterized by long but narrow catchments. The Dien Bien Phu fault is associated with the most seismically active zone in Vietnam and situated in the potential eastern boundary of the rotating southeastern Tibetan block. It cuts the Da River, the largest tributary of Red River in northwest Vietnam and has distorted the drainage basin resulting in complex river patterns. To assess the river morphology response to active Dien Bien Phu fault, we use 1/50,000 topographic data and ASTER images to map the precise river courses and digital elevation model data of SRTM to retrieve and analyze the river profiles. From the mapping results, the N-S striking fault results in three conspicuous north-trending river valleys coincided with the different fault segments to facilitate the measurement and reconstruction of the offsets along the fault. Further combining the longitudinal profile analysis we obtain ca. 10 km offsets by deflected river as the largest left-lateral displacement recorded along the active fault. The restored results show the downstream paleochannel of the Da River had been abandoned and becomes two small tributaries in opposite flow directions at present due to differential crustal uplift. Also the present crisscross valley at the junction of the Da River and the fault is resulted from the capture by another river which has been also deflected by the neotectonics. Based on our observations on river response, the Dien Bien Phu fault is a sinistral dominant fault with an uplift occurring in its eastern block. Furthermore the active Dien Bien Phu fault does not cut through the Red River northward indicating the western block of the fault can not be regarded as a single rigid block. There should be possible to find NW-SE trending faults paralleling to Red River to accommodate the deformation of the western block of the fault.

  13. Implications of river morphology response to Dien Bien Phu fault in NW Vietnam

    NASA Astrophysics Data System (ADS)

    Lai, K.; Chen, Y.; Lam, D.

    2004-12-01

    In northern Vietnam, most rivers are flowing southeastward sub- or parallel to the valley of Red River and characterized by long but narrow catchments. The Dien Bien Phu fault is associated with the most seismically active zone in Vietnam and situated in the potential eastern boundary of the rotating southeastern Tibetan block. It cuts the Da River, the largest tributary of Red River in northwest Vietnam and has distorted the drainage basin resulting in complex river patterns. To assess the river morphology response to active Dien Bien Phu fault, we use 1/50,000 topographic data and ASTER images to map the precise river courses and digital elevation model data of SRTM to retrieve and analyze the river profiles. From the mapping results, the N-S striking fault results in three conspicuous north-trending river valleys coincided with the different fault segments to facilitate the measurement and reconstruction of the offsets along the fault. Further combining the longitudinal profile analysis we obtain ca. 10 km offsets by deflected river as the largest left-lateral displacement recorded along the active fault. The restored results show the downstream paleochannel of the Da River had been abandoned and becomes two small tributaries in opposite flow directions at present due to differential crustal uplift. Also the present crisscross valley at the junction of the Da River and the fault is resulted from the capture by another river which has been also deflected by the neotectonics. Based on our observations on river response, the Dien Bien Phu fault is a sinistral dominant fault with an uplift occurring in its eastern block. Furthermore the active Dien Bien Phu fault does not cut through the Red River northward indicating the western block of the fault can not be regarded as a single rigid block. There should be possible to find NW-SE trending faults paralleling to Red River to accommodate the deformation of the western block of the fault.

  14. 33 CFR 165.731 - Safety/Security Zone: Cumberland Sound, Georgia and St. Marys River Entrance Channel.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Sound, Georgia and St. Marys River Entrance Channel. 165.731 Section 165.731 Navigation and Navigable... Seventh Coast Guard District § 165.731 Safety/Security Zone: Cumberland Sound, Georgia and St. Marys River... waters and land from bank to bank within Cumberland Sound and the St. Marys Entrance Channel: the...

  15. Questa Baseline and Pre-Mining Ground-Water Quality Investigation. 17. Geomorphology of the Red River Valley, Taos County, New Mexico, and Influence on Ground-Water Flow in the Shallow Alluvial Aquifer

    USGS Publications Warehouse

    Vincent, Kirk R.

    2008-01-01

    In April 2001, the U.S. Geological Survey (USGS) and the New Mexico Environment Department (NMED) began a cooperative study to infer the pre-mining ground-water chemistry at the Molycorp molybdenum mine site in the Red River Valley of north-central New Mexico. This report is one in a series of reports that can be used to determine pre-mining ground-water conditions at the mine site. Molycorp?s Questa molybdenum mine in the Red River Valley, northern New Mexico, is located near the margin of the Questa caldera in a highly mineralized region. The bedrock of the Taos Range surrounding the Red River is composed of Proterozoic rocks of various types, which are intruded and overlain by Oligocene volcanic rocks associated with the Questa caldera. Locally, these rocks were altered by hydrothermal activity. The alteration zones that contain sulfide minerals are particularly important because they constitute the commercial ore bodies of the region and, where exposed to weathering, form sites of rapid erosion referred to as alteration scars. Over the past thousand years, if not over the entire Holocene, erosion rates were spatially variable. Forested hillslopes eroded at about 0.04 millimeter per year, whereas alteration scars eroded at about 2.7 millimeters per year. The erosion rate of the alteration scars is unusually rapid for naturally occurring sites that have not been disturbed by humans. Watersheds containing large alteration scars delivered more sediment to the Red River Valley than the Red River could remove. Consequently, large debris fans, as much as 80 meters thick, developed within the valley. The geomorphology of the Red River Valley has had several large influences on the hydrology of the shallow alluvial aquifer, and those influences were in effect before the onset of mining within the watershed. Several reaches where alluvial ground water emerges to become Red River streamflow were observed by a tracer dilution study conducted in 2001. The aquifer narrows

  16. Water-surface elevation and discharge measurement data for the Red River of the North and its tributaries near Fargo, North Dakota, water years 2014–15

    USGS Publications Warehouse

    Damschen, William C.; Galloway, Joel M.

    2016-08-25

    The U.S. Geological Survey, in cooperation with the Fargo Diversion Board of Authority, collected water-surface elevations during a range of discharges needed for calibration of hydrologic and hydraulic models for specific reaches of interest in water years 2014–15. These water-surface elevation and discharge measurement data were collected for design planning of diversion structures on the Red River of the North and Wild Rice River and the aqueduct/diversion structures on the Sheyenne and Maple Rivers. The Red River of the North and Sheyenne River reaches were surveyed six times, and discharges ranged from 276 to 6,540 cubic feet per second and from 166 to 2,040 cubic feet per second, respectively. The Wild Rice River reach also was surveyed six times during 2014 and 2015, and discharges ranged from 13 to 1,550 cubic feet per second. The Maple River reach was surveyed four times, and discharges ranged from 16.4 to 633 cubic feet per second. Water-surface elevation differences from upstream to downstream in the reaches ranged from 0.33 feet in the Red River of the North reach to 9.4 feet in the Maple River reach.

  17. 33 CFR 165.1323 - Regulated Navigation Area: Willamette River Portland, Oregon Captain of the Port Zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Regulated Navigation Area: Willamette River Portland, Oregon Captain of the Port Zone. 165.1323 Section 165.1323 Navigation and..., Oregon Captain of the Port Zone. (a) Location. The following is a regulated navigation area (RNA): All...

  18. 33 CFR 165.1322 - Regulated Navigation Area: Willamette River Portland, Oregon Captain of the Port Zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Regulated Navigation Area: Willamette River Portland, Oregon Captain of the Port Zone. 165.1322 Section 165.1322 Navigation and..., Oregon Captain of the Port Zone. (a) Location. The following is a regulated navigation area (RNA): All...

  19. Detrital zircon U-Pb geochronological and sedimentological study of the Simao Basin, Yunnan: Implications for the Early Cenozoic evolution of the Red River

    NASA Astrophysics Data System (ADS)

    Chen, Yi; Yan, Maodu; Fang, Xiaomin; Song, Chunhui; Zhang, Weilin; Zan, Jinbo; Zhang, Zhiguo; Li, Bingshuai; Yang, Yongpeng; Zhang, Dawen

    2017-10-01

    The paleo-Red River is suggested to have been a continental-scale drainage system connecting the Tibetan Plateau to the South China Sea. However, the evolution of the paleo-Red River is still under debate. This study presents new results from sedimentological analyses and detrital zircon U-Pb geochronologic data from fluvial sedimentary rocks of Paleocene to Oligocene age of the Simao Basin to constrain the nature of the paleo-drainage system of the Red River. The detrital zircon U-Pb results reveal multiple age groups at 190-240 Ma, 260-280 Ma, 450-540 Ma, 1700-1900 Ma and 2400-2600 Ma for the Paleocene to late Eocene Denghei Formation (Fm.), but only one conspicuous peak at 220-240 Ma for the late Eocene-Oligocene Mengla Fm. Provenance analyses illustrate that the former likely had source areas that included the Hoh-Xil, Songpan-Ganzi, northern Qiangtang, Yidun and western Yangtze Terranes, which are consistent with the catchments of the Upper and Lower Jinshajiang Segments, whereas the latter mainly transported material from a limited number of sources, such as the Lincang granitic intrusions west of the Simao Basin. Integrated with available detrital zircon U-Pb geochronologic and paleogeographic data, our study suggests the existence of a paleo-Red River during the Paleocene to late Eocene that was truncated and lost its northern sources after approximately 35 Ma, due to left-lateral strike-slip faulting of the Ailao Shan-Red River and clockwise rotation of the Lanping-Simao Terrane.

  20. 75 FR 41376 - Safety Zone; Fireworks Display, Potomac River, Charles County, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-16

    ...-AA00 Safety Zone; Fireworks Display, Potomac River, Charles County, MD AGENCY: Coast Guard, DHS. ACTION... this temporary rule, call or e-mail Mr. Ronald L. Houck, Sector Baltimore Waterways Management Division, Coast Guard; telephone 410-576-2674, e- mail Ronald.L[email protected] . If you have questions on viewing...

  1. 75 FR 26094 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-11

    ...-AA00 Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago... establishing a temporary safety zone from Brandon Road Lock and Dam to Lake Michigan. This temporary safety...

  2. 77 FR 73541 - Safety Zone: Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-11

    ...-AA00 Safety Zone: Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and... Gilmerton Bridge Center Span Float- in and bridge construction of span placement. This action is intended to... rulemaking (NPRM) proposing a safety zone in the Gilmerton Bridge Area (77 FR 43557) on September 5-9, 2012...

  3. 33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zone; Salem and Hope... Limited Access Areas Fifth Coast Guard District § 165.553 Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. (a) Location. The following area is a security zone...

  4. 33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zone; Salem and Hope... Limited Access Areas Fifth Coast Guard District § 165.553 Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. (a) Location. The following area is a security zone...

  5. 33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Salem and Hope... Limited Access Areas Fifth Coast Guard District § 165.553 Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. (a) Location. The following area is a security zone...

  6. 33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zone; Salem and Hope... Limited Access Areas Fifth Coast Guard District § 165.553 Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. (a) Location. The following area is a security zone...

  7. 33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zone; Salem and Hope... Limited Access Areas Fifth Coast Guard District § 165.553 Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. (a) Location. The following area is a security zone...

  8. A subsynoptic-scale kinetic energy study of the Red River Valley tornado outbreak (AVE-SESAME 1)

    NASA Technical Reports Server (NTRS)

    Jedlovec, G. J.; Fuelberg, H. E.

    1981-01-01

    The subsynoptis-scale kinetic energy balance during the Red River Valley tornado outbreak is presented in order to diagnose storm environment interactions. Area-time averaged energetics indicate that horizontal flux convergence provides the major energy source to the region, while cross contour flow provides the greatest sink. Maximum energy variability is found in the upper levels in association with jet stream activity. Area averaged energetics at individual observation times show that the energy balance near times of maximum storm activity differs considerably from that of the remaining periods. The local kinetic energy balance over Oklahoma during the formation of a limited jet streak receives special attention. Cross contour production of energy is the dominant local source for jet development. Intense convection producing the Red River Valley tornadoes may have contributed to this local development by modifying the surrounding environment.

  9. 33 CFR 165.T08-0433 - Safety Zone; Waterway Closure, Atchafalaya River from Mile Marker 117 (Morgan City Railroad...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., Atchafalaya River from Mile Marker 117 (Morgan City Railroad Bridge) to Mile Marker 0 (Simmesport, LA). 165... Safety Zone; Waterway Closure, Atchafalaya River from Mile Marker 117 (Morgan City Railroad Bridge) to... waters of the Atchafalaya River between MM 117 (Morgan City Railroad Bridge) and MM 0 (Simmesport, LA...

  10. 33 CFR 165.820 - Security Zone; Ohio River Mile, 34.6 to 35.1, Shippingport, Pennsylvania.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... AREAS AND LIMITED ACCESS AREAS Specific Regulated Navigation Areas and Limited Access Areas Eighth Coast...) Location. The following area is a security zone: The waters of the Ohio River, extending 200 feet from the... Captain of the Port, Pittsburgh. (2) Persons and vessels desiring to transit the area of the security zone...

  11. Analysis and Mapping of Flood Line and Flood Zones within the Godavari River in Nasik Municipal Corporation

    NASA Astrophysics Data System (ADS)

    Thakre, Deepak

    2010-05-01

    Analysis and Mapping of Flood Line within the Godavari River in Nasik(Municipal Corporation Area) Dr.Deepak N.Thakre Lecturer in Geography L.V.H.College, Nasik-3, Maharashtra, India A flood is an overflow or accumulation of an expanse of water that submerges land when the discharge of a river can not be accommodated within the margins of its normal channel so that water spreads over adjoining area and creates havoc. Problem: Since last few years there has been a sudden increase in rainfall,quite intense during a certain period in monsoon,as a result of which the discharge in river Godavari increases and creates problems in low lying areas on the banks of river Godavari like: submergence of houses,major loss of lives,management failure(due to unexpected dimension of floods)and the disruption of normal life. This paper attempts to analyse and draw an averege flood zone and sudden flood zone on the basis of : 1) Actual field work and survey with the help of Dumpy level and GPS 2) Field interviews of affected people 3) Data available from Meteorological and Irrigation department Among several districts that have flourished in the soils of Indian subcontinent the name of Nashik has drawn the attention of people all over the world. Geographical location of Nashik is 20° 01' to 20° 02' North and 73° 30' to 73° 50'East. Nashik city is situated on the banks of river Godavari and tributaries namely Nasardi, Waghadi, Darna and Walvadi.The total area of Nasik is 264.23 Sq.km (102 Sq.mt) and height from M.S.L is 3284 feet (1001 Mt). River Godavari originates in Western mountain range and flows towards East up to Bay of Bengal. On the upstream of Nasik city dams like Gangapur, Darna, Alandi, Kasyapi and Gautami-Godavari are constructed on river Godavari and its tributaries. Gangapur dam is the nearest storage dam constructed 15km away from Nasik city at source area in the year 1965. Due to moderation of floods and construction of dam there is encroachment in low lying areas

  12. General weather conditions and precipitation contributing to the 2011 flooding in the Mississippi River and Red River of the North Basins, December 2010 through July 2011: Chapter B in 2011 floods of the central United States

    USGS Publications Warehouse

    Vining, Kevin C.; Chase, Katherine J.; Loss, Gina R.

    2013-01-01

    Excessive precipitation produced severe flooding in the Mississippi River and Red River of the North Basins during spring and summer 2011. The 2011 flooding was caused by weather conditions that were affected in part by a La Niña climate pattern. During the 2010–11 climatological winter (December 2010–February 2011), several low pressure troughs from the Rocky Mountains into the Ohio River subbasin produced large amounts of precipitation. Precipitation was above normal to record amounts in parts of the Missouri River, Red River of the North, and upper Mississippi River subbasins, and mostly normal to below normal in the Ohio River and lower Mississippi River subbasins. During the 2011 climatological spring (March–May 2011), a large low pressure trough over the continental States and a high pressure ridge centered in the vicinity of the Gulf of Mexico combined to produce storms with copious precipitation along frontal boundaries across the Central States. Rain totals recorded during the April 18–28, 2011, precipitation event were more than 8 inches at several locations, while an impressive total of 16.15 inches was recorded at Cape Girardeau, Missouri. Several locations in the Missouri River subbasin had rainfall totals that were nearly one-third to one-half of their 1971–2000 normal annual amounts during a May 16–31, 2011, precipitation event. During June and July, thunderstorm development along frontal boundaries resulted in areas of heavy rain across the Missouri River, Red River of the North, and upper Mississippi River subbasins, while rainfall in the lower Mississippi River subbasin was mostly below normal.

  13. Aquatic communities and contaminants in fish from streams of the Red River of the North basin, Minnesota and North Dakota

    USGS Publications Warehouse

    Goldstein, R.M.

    1995-01-01

    Available data on the ecology of aquatic organisms in the Red River of the North Basin, a study unit of the U.S. Geological Survey's National Water-Quality Assessment program, were collated from numerous sources. Lack of information for invertebrates and algae precluded a general summary of distribution and ecology throughout the basin. Data on fish species distributions in the major streams of the Red River of the North Basin were analyzed based on the drainage area of the stream and the number of ecoregions the stream flowed through. Species richness increased with both drainage area (log drainage area in square kilometers, R2=0.41, p=0.0055) and the number of ecoregions a river flowed through. However, theses two factors are autocorrelated because the larger the drainage, the more likely that the river will flow through more than one ecoregion. A cluster analysis identified five river groups based on similarity of species within the fish community. Analysis of trophic and taxonomic composition provided justification for the cluster groups. There were significant differences (p=0.05) in the trophic composition of the river cluster groups with respect to the number of predator species, omnivore species, benthic insectivore species, and general insectivore species. Although there were no significant differences in the number of species in the bass and sunfish family or the sucker family, the number of species in the minnow family and the darter subfamily were different (p=0.05) among the groups identified by cluster analysis. Data on contaminant concentrations in fish from the Red River of the North indicated that most trace elements and organochlorine compounds present in tissues were not at levels toxic to fish or humans. Minnesota and North Dakota have issued a fish consumption advisory based on levels of mercury and (or) PCBs found in some species.

  14. 75 FR 23589 - Safety Zones; Blasting Operations and Movement of Explosives, St. Marys River, Sault Sainte Marie...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2010-0290] RIN 1625-AA00 Safety Zones; Blasting Operations and Movement of Explosives, St. Marys River, Sault Sainte Marie... Movement of Explosives, St. Marys River, Sault Sainte Marie, MI. (a) Location. The following areas are...

  15. Response of invertebrates from the hyporheic zone of chalk rivers to eutrophication and land use.

    PubMed

    Pacioglu, Octavian; Moldovan, Oana Teodora

    2016-03-01

    Whereas the response of lotic benthic macroinvertebrates to different environmental stressors is a widespread practice nowadays in assessing the water and habitat quality, the use of hyporheic zone invertebrates is still in its infancy. In this study, classification and regression trees analysis were employed in order to assess the ecological requirements and the potential as bioindicators for the hyporheic zone invertebrates inhabiting four lowland chalk rivers (south England) with contrasting eutrophication levels (based on surface nitrate concentrations) and magnitude of land use (based on percentage of fine sediments load and median interstitial space). Samples of fauna, water and sediment were sampled twice, during low (summer) and high (winter) groundwater level, at depths of 20 and 35 cm. Certain groups of invertebrates (Glossosomatidae and Psychomyiidae caddisflies, and riffle beetles) proved to be good indicators of rural catchments, moderately eutrophic and with high fine sediment load. A diverse community dominated by microcrustaceans (copepods and ostracods) were found as good indicators of highly eutrophic urban streams, with moderate-high fine sediment load. However, the use of other taxonomic groups (e.g. chironomids, oligochaetes, nematodes, water mites and the amphipod Gammarus pulex), very widespread in the hyporheic zone of all sampled rivers, is of limited use because of their high tolerance to the analysed stressors. We recommend the use of certain taxonomic groups (comprising both meiofauna and macroinvertebrates) dwelling in the chalk hyporheic zone as indicators of eutrophication and colmation and, along with routine benthic sampling protocols, for a more comprehensive water and habitat quality assessment of chalk rivers.

  16. Basin-scale characterization of river hydromorphology by map derived information: A case study on the Red River (Sông Hông), Vietnam

    NASA Astrophysics Data System (ADS)

    Schmitt, R. J.; Bizzi, S.; Castelletti, A.

    2012-12-01

    The understanding of river hydromorphological processes has been recognized in the last decades as a priority of modern catchment management, since fluvial geomorphic processes shape physical habitat, affect river infrastructures and influence freshwater ecological processes. Characterization of river hydromorphological features is commonly location specific and highly demanding in terms of field-works, resource and expertise required. Therefore, its routine application at regional or national scales, although an urgent need of catchment management, is infeasible at present. Recently available high-resolution data, such as DEM or LIDAR, opens up novel potential for basin-wide analysis of fluvial processes at limited effort and cost. Specifically, in this study we assess the feasibility of characterizing river hydromorphology from specific map derived geomorphic controls namely: channel gradient, bankfull flow, specific stream power, and degree of channel confinement. The river network, extracted from a digital elevation model and validated with available network shape-files and optical satellite imagery, available flow gauging stations and GIS processing allow producing continuous values of geomorphic drivers defined over given length segments at catchment or regional scales. This generic framework was applied to the Red River (Sông Hông) basin, the second largest basin (87,800 km2) in Vietnam. Besides its economic importance, the river since few years is experiencing severe river bed incisions due to the building of new dams in the upstream part of the catchment and sand mining in the surrounding of the capital city Hanoi. In this context, characterized by an high developing rate, current efforts to increase water productivity by infrastructure and management measures require a thorough understanding of fluvial system and, in particular, of the basin-wide river hydromorphology. The framework proposed has allowed producing high-dimensional samples of spatially

  17. 33 CFR 165.731 - Safety/Security Zone: Cumberland Sound, Georgia and St. Marys River Entrance Channel.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... northern extent of this zone starts at the southern tip of Crab Island; lighted buoy number “1” at the.... Marys River indicates the western boundary; and the eastern boundary extends out to three (3) nautical miles in the Atlantic Ocean, with the zone also encompassing the waters within 1000 yards of the...

  18. 33 CFR 165.731 - Safety/Security Zone: Cumberland Sound, Georgia and St. Marys River Entrance Channel.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... northern extent of this zone starts at the southern tip of Crab Island; lighted buoy number “1” at the.... Marys River indicates the western boundary; and the eastern boundary extends out to three (3) nautical miles in the Atlantic Ocean, with the zone also encompassing the waters within 1000 yards of the...

  19. 33 CFR 165.731 - Safety/Security Zone: Cumberland Sound, Georgia and St. Marys River Entrance Channel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... northern extent of this zone starts at the southern tip of Crab Island; lighted buoy number “1” at the.... Marys River indicates the western boundary; and the eastern boundary extends out to three (3) nautical miles in the Atlantic Ocean, with the zone also encompassing the waters within 1000 yards of the...

  20. 33 CFR 165.731 - Safety/Security Zone: Cumberland Sound, Georgia and St. Marys River Entrance Channel.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... northern extent of this zone starts at the southern tip of Crab Island; lighted buoy number “1” at the.... Marys River indicates the western boundary; and the eastern boundary extends out to three (3) nautical miles in the Atlantic Ocean, with the zone also encompassing the waters within 1000 yards of the...

  1. 33 CFR 165.511 - Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its tributaries. 165.511 Section 165.511... Limited Access Areas Fifth Coast Guard District § 165.511 Security Zone; Atlantic Ocean, Chesapeake...

  2. 33 CFR 165.511 - Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its tributaries. 165.511 Section 165.511... Limited Access Areas Fifth Coast Guard District § 165.511 Security Zone; Atlantic Ocean, Chesapeake...

  3. 33 CFR 165.511 - Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its tributaries. 165.511 Section 165.511... Limited Access Areas Fifth Coast Guard District § 165.511 Security Zone; Atlantic Ocean, Chesapeake...

  4. 33 CFR 165.511 - Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its tributaries. 165.511 Section 165.511... Limited Access Areas Fifth Coast Guard District § 165.511 Security Zone; Atlantic Ocean, Chesapeake...

  5. 33 CFR 165.511 - Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zone; Atlantic Ocean, Chesapeake & Delaware Canal, Delaware Bay, Delaware River and its tributaries. 165.511 Section 165.511... Limited Access Areas Fifth Coast Guard District § 165.511 Security Zone; Atlantic Ocean, Chesapeake...

  6. Fate of Arsenic during Red River Water Infiltration into Aquifers beneath Hanoi, Vietnam

    PubMed Central

    2016-01-01

    Recharge of Red River water into arsenic-contaminated aquifers below Hanoi was investigated. The groundwater age at 40 m depth in the aquifer underlying the river was 1.3 ± 0.8 years, determined by tritium–helium dating. This corresponds to a vertical flow rate into the aquifer of 19 m/year. Electrical conductivity and partial pressure of CO2 (PCO2) indicate that water recharged from the river is present in both the sandy Holocene and gravelly Pleistocene aquifers and is also abstracted by the pumping station. Infiltrating river water becomes anoxic in the uppermost aquifer due to the oxidation of dissolved organic carbon. Further downward, sedimentary carbon oxidation causes the reduction of As-containing Fe-oxides. Because the release of arsenic by reduction of Fe-oxides is controlled by the reaction rate, arsenic entering the solution becomes highly diluted in the high water flux and contributes little to the groundwater arsenic concentration. Instead, the As concentration in the groundwater of up to 1 μM is due to equilibrium-controlled desorption of arsenic, adsorbed to the sediment before river water started to infiltrate due to municipal pumping. Calculations indicate that it will take several decades of river water infiltration to leach arsenic from the Holocene aquifer to below the World Health Organization limit of 10 μg/L. PMID:27958705

  7. Fate of Arsenic during Red River Water Infiltration into Aquifers beneath Hanoi, Vietnam.

    PubMed

    Postma, Dieke; Mai, Nguyen Thi Hoa; Lan, Vi Mai; Trang, Pham Thi Kim; Sø, Helle Ugilt; Nhan, Pham Quy; Larsen, Flemming; Viet, Pham Hung; Jakobsen, Rasmus

    2017-01-17

    Recharge of Red River water into arsenic-contaminated aquifers below Hanoi was investigated. The groundwater age at 40 m depth in the aquifer underlying the river was 1.3 ± 0.8 years, determined by tritium-helium dating. This corresponds to a vertical flow rate into the aquifer of 19 m/year. Electrical conductivity and partial pressure of CO 2 (P CO 2 ) indicate that water recharged from the river is present in both the sandy Holocene and gravelly Pleistocene aquifers and is also abstracted by the pumping station. Infiltrating river water becomes anoxic in the uppermost aquifer due to the oxidation of dissolved organic carbon. Further downward, sedimentary carbon oxidation causes the reduction of As-containing Fe-oxides. Because the release of arsenic by reduction of Fe-oxides is controlled by the reaction rate, arsenic entering the solution becomes highly diluted in the high water flux and contributes little to the groundwater arsenic concentration. Instead, the As concentration in the groundwater of up to 1 μM is due to equilibrium-controlled desorption of arsenic, adsorbed to the sediment before river water started to infiltrate due to municipal pumping. Calculations indicate that it will take several decades of river water infiltration to leach arsenic from the Holocene aquifer to below the World Health Organization limit of 10 μg/L.

  8. The late early Miocene Sabine River

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

    Manning, E.

    Work on a new late early Miocene vertebrate fossil site, in a paleochannel deposit of the upper Carnahan Bayou Member of the lower Fleming Formation, has revealed unexpected data on the course and nature of the Sabine River of that time. Screen washing for smaller vertebrate remains at the site, just west of the Sabine River in Newton County, central eastern Texas, has resulted in the recovery of early Permian, Early Cretaceous, Late Cretaceous (Maestrichtian), Paleocene/Eocene, late Eocene, and Oligocene/Miocene fossils, in addition to the main early Miocene fauna. The reworked fossils, as well as distinctive mineral grains, show thatmore » the late early Miocene Sabine River was connected to the Texas/Oklahoma/Arkansas boundary section of the Red River, as well as to rivers draining the southern Ouachita Mountains. These rivers must have joined the Texas/Louisiana boundary section of the Sabine River somewhere in northwest Louisiana at that time. This suggests that the Louisiana section of the present Red River pirated the Texas/Oklahoma/Arkansas boundary section of the river some time after the early Miocene. The preservation of recognizable fossils transported hundreds of miles in a large river itself requires explanation. It is speculated here that the late early Miocene Sabine River incorporated a large amount of the then recently deposited volcanic ash from the Trans-Pecos Volcanic Field. Montmorillonite clay from the altered volcanic ash would have made the river very turbid, which could have allowed coarse sand-sized particles to be carried in the suspended load of the river, rather than in its bed load (where they would have been destroyed by the rolling chert gravel). Additional evidence for such long-distance fossil transport in the late early Miocene rivers of the western Gulf Coastal Plain comes from the abundant Cretaceous fossils of the upper Oakville Formation of southeast Texas and the Siphonina davisi zone of the southeast Texas subsurface.« less

  9. Simulation of wastewater effects on dissolved oxygen during low streamflow in the Red River of the North at Fargo, North Dakota, and Moorhead, Minnesota

    USGS Publications Warehouse

    Wesolowski, Edwin A.

    1996-01-01

    Pursuant to Section 303(d) of the Clean Water Act, both North Dakota and Minnesota identified part of the Red River of the North (Red River) as water-quality limited. The states are required to determine the total maximum daily load (TMDL) that can be discharged to a water-quality limited reach from various pollution sources without contravening water-quality standards (U.S. Environmental Protection Agency, 1991). A work group consisting of local, State, and Federal agency representatives that was organized in June 1994 decided that a TMDL should be developed in phases for a subreach of the Red River at Fargo, N. Dak., and Moorhead, Minn. (fig. 1). In the first phase, which is the basis for this report, the focus is on attainment of the instream dissolved-oxygen (DO) standard during low streamflows, and only Fargo and Moorhead wastewater-treatment-plant discharges and Sheyenne River inflow are considered. The study reach begins about 0.1 mile (mi) downstream (north) of the 12th Avenue North bridge in Fargo and extends 30.8 mi downstream to a site 0.8 mi upstream of the confluence of the Buffalo and Red Rivers (fig. 1). Nitrification of total ammonia (ammonia) from Fargo and Moorhead wastewater consumes most of the DO in the study reach (Wesolowski, 1994). Because the new (1995) Fargo plant already is nitrifying its wastewater, the work group needed to determine the maximum ammonia concentration for wastewater from the nonnitrifying Moorhead plant. To accomplish this task, the Red River at Fargo Water-Quality (RRatFGO QW) model (Wesolowski, 1994, 1996b) was used to simulate the effects of various wastewater-management alternatives during low streamflow. This report presents the results of those simulations to determine the usefulness of the model for management decisions. The simulations and report were completed in cooperation with the North Dakota Department of Health.

  10. Streambed peat lenses as redox-reactivity hotspots in lowland river hyporheic zones

    NASA Astrophysics Data System (ADS)

    Naden, Emma; Krause, Stefan; Cassidy, Nigel

    2010-05-01

    Hyporheic zones, as the direct interfaces between aquifers and rivers, are often characterised by increased redox reactivity and chemical transformation capacity. Depending on redox conditions and reaction types, hyporheic mixing of groundwater and surface water can lead to either attenuation or enrichment of pollutants or nutrients with diametrical implications for in-stream and aquifer hydro-ecological status. This study combines geophysical methods with distributed temperature sensor networks and nested multi-level sampling and analysis of hyporheic redox conditions and nutrient concentrations to investigate the reactive transport of nitrate at the aquifer-river interface of a UK lowland river. In stream Electric Resistivity Tomography and Ground Penetrating Radar (including core based ground truthing) have been applied to map the complex spatial patterns of highly conductive sandy and gravely sediments in contrast to semi-confining, low conductivity peat lenses which have been found to be characteristic for most lowland rivers. Reach scale (1km) spatial patterns and temporal dynamics of aquifer-river exchange have been identified by heat tracer experiments based on fibre-optical Distributed Temperature Sensing techniques combined with vertical thermocouple-arrays for tracing hyporheic flow paths. Spatial patterns of hyporheic redox conditions, dissolved oxygen (DO) and organic carbon (DOC) content as well as concentrations of major anions have been monitored in 48 nested multi-level mini-piezometers. Our investigations indicate that streambed temperature patterns were dominantly controlled by groundwater up-welling, causing cold spots in sandy and gravely sediments with high up-welling rates and low hyporheic residence times and warmer areas at the streambed surface where groundwater - surface water exchange was inhibited by streambed peat lenses. The flow-inhibiting peat structures have been found to cause semi-confined conditions in the up-welling groundwater

  11. Female transference and mate choice among Tana River red colobus.

    PubMed

    Marsh, C W

    1979-10-18

    Red colobus are one of a small number of primate species in which females have been reported to transfer between breeding groups more commonly than males. Several authors have hypothesised that in such species transference may serve to reduce the risk to females of producing offspring of lower fitness through inbreeding. The hypothesis offers no explanation of why females rather than males are responsible for outbreeding in these species, but remains plausible so long as male membership of breeding groups is relatively stable; for once members of one sex have evolved dispersal mechanisms reducing the risk of inbreeding, pressures on the other sex to do likewise will be lowered. Hence, if both sexes commonly migrate, the hypothesis is weakened. I describe here the membership dynamics of a group of Tana River red colobus, Colobus badius rufomitratus, which provide the first evidence of high rates of membership turnover by both sexes in primates, and speculate that the function of female transference in this case may be related to mate choice and the avoidance of infanticide.

  12. Bauxite to eclogite: Evidence for late Permian supracontinental subduction at the Red River shear zone, northern Vietnam

    NASA Astrophysics Data System (ADS)

    Nakano, Nobuhiko; Osanai, Yasuhito; Nam, Nguyen Van; Tri, Tran Van

    2018-03-01

    We have investigated the geological processes recorded in aluminous granulites from the Red River shear zone in northern Vietnam using mineral and whole-rock chemistries, fluid inclusions, metamorphic pressure-temperature paths, and geochronology. The granulites are extremely rich in Al2O3 (36.3-50.9 wt%), TiO2, and total Fe2O3, and poor in SiO2 (7.9-24.1 wt%), MgO, CaO, Na2O, and K2O. The granulites are enriched in high-field-strength elements and rare earth elements, and severely depleted in large-ion lithophile elements. These features strongly suggest the protolith was lateritic bauxite. Moreover, the other elemental concentrations and the Zr/Ti ratios point to basaltic rock as the precursor of the bauxite. Some of the aluminous granulites contain high-pressure mineral inclusions of kyanite, staurolite, siderite, and rutile, none of which are observed in the matrix. Abundant primary carbonic fluid inclusions are observed in garnet, corundum, and staurolite, but are rare in quartz and zircon. The average densities of fluid inclusions in garnet, corundum, staurolite, quartz, and zircon are 1.00 ± 0.06, 1.07 ± 0.04, 1.09 ± 0.03, 0.29 ± 0.07, and 1.15 ± 0.05 g/cm3, respectively. The mineral features not only in the matrix and but also in garnet from all rock types, isochemical phase diagrams obtained for each bulk rock composition, and Zr-in-rutile thermometry indicate an early eclogite-facies metamorphism ( 2.5 GPa at 650 °C) and a subsequent nearly isothermal decompression. Zircons yield a wide range of U-Pb ages from 265 to 36 Ma, whereas the dark luminescent cores of the zircons, which contain high-density CO2 inclusions, yield a concordia age of 257 ± 8 Ma. These observations suggest that the dark luminescent zircon cores were formed at the same time as the garnet, corundum, and staurolite that contain high-density CO2 fluid inclusions. Based on the carbonic fluid inclusion isochore and the densities as well as calculated phase diagram, the concordia

  13. Structural development of the Red Hill portion of the Feather River ultramafic complex, Pulmas County, California

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

    Weisenberg, C.W.

    1979-01-01

    The Feather River Ultramafic Complex is a partially serpentinized body of metamorphosed alpine peridotite and gabbro that lies along the northern part of the Melones fault zone, a NNW trending belt in the Northern Sierra Nevada. The complex was studied in the area of Red Hill, near the canyon of the North Fork, Feather River. The complex is separated from the Calaveras Terrain and Arlington Formation country rocks by steep faults; the Melones Fault on the east and the Rich Bar Fault on the west. Units recognized within the complex include Rich Bar metamorphic rocks, peridotite, metaperidotite, tremolite-olivine schist, hornblendemore » schist, and layered metagabbro. The Rich Bar metamorphic rocks are tectonic slices of amphibolite grade hornblende schist, mica schist, and quartzite found along the Rich Bar Fault. The complex shows evidence of 4 major events. E-1 (Pennsylvania-Permian) was formation of the peridotite-gabbro complex. E-2 (Permo-Triassic) consisted of pervasive shearing parallel to the Rich Bar Fault associated with initial emplacement within the Sierra Nevada. E-3 is believed to be compression and metamorphism (serpentinization) associated with the Nevadan orogeny. E-4 was associated with intrusion of nearby plutons. The regional association of the complex with late paleozoic arc volcanics of the Taylorsville area suggest formation near or under an island arc. Metamorphism during emplacement indicates association with the arc at that time. Left-lateral shear during emplacement along the Rich Bar Fault indicates NW directed thrusting when the layering in metagabbro is rotated to horizontal.« less

  14. Tidal-Fluvial and Estuarine Processes in the Lower Columbia River: II. Water Level Models, Floodplain Wetland Inundation, and System Zones

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

    Jay, David A.; Borde, Amy B.; Diefenderfer, Heida L.

    Spatially varying water-level regimes are a factor controlling estuarine and tidal-fluvial wetland vegetation patterns. As described in Part I, water levels in the Lower Columbia River and estuary (LCRE) are influenced by tides, river flow, hydropower operations, and coastal processes. In Part II, regression models based on tidal theory are used to quantify the role of these processes in determining water levels in the mainstem river and floodplain wetlands, and to provide 21-year inundation hindcasts. Analyses are conducted at 19 LCRE mainstem channel stations and 23 tidally exposed floodplain wetland stations. Sum exceedance values (SEVs) are used to compare wetlandmore » hydrologic regimes at different locations on the river floodplain. A new predictive tool is introduced and validated, the potential SEV (pSEV), which can reduce the need for extensive new data collection in wetland restoration planning. Models of water levels and inundation frequency distinguish four zones encompassing eight reaches. The system zones are the wave- and current-dominated Entrance to river kilometer (rkm) 5; the Estuary (rkm-5 to 87), comprised of a lower reach with salinity, the energy minimum (where the turbidity maximum normally occurs), and an upper estuary reach without salinity; the Tidal River (rkm-87 to 229), with lower, middle, and upper reaches in which river flow becomes increasingly dominant over tides in determining water levels; and the steep and weakly tidal Cascade (rkm-229 to 234) immediately downstream from Bonneville Dam. The same zonation is seen in the water levels of floodplain stations, with considerable modification of tidal properties. The system zones and reaches defined here reflect geological features and their boundaries are congruent with five wetland vegetation zones« less

  15. 75 FR 30708 - Safety Zone; Red Bull Air Race, Detroit River, Detroit, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-02

    ... each day of its effective period. Additionally, prior to the event, local sailing and yacht clubs will... local sailing and yacht clubs. In the event this temporary safety zone affects shipping, commercial... and yacht clubs will be provided with information by Coast Guard Station Belle Isle on what to expect...

  16. 77 FR 53769 - Safety Zone; Liberty to Freedom Swims, Liberty Island, Upper Bay and Hudson River, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-04

    ... 1625-AA00 Safety Zone; Liberty to Freedom Swims, Liberty Island, Upper Bay and Hudson River, NY AGENCY... September 5, 2012 and September 15, 2012 Liberty to Freedom swim events. This temporary safety zone is necessary to protect the maritime public and event participants from the hazards associated with swim events...

  17. 77 FR 64718 - Safety Zone; Steam Ship Col. James M. Schoonmaker Relocation Project, Maumee River, Toledo, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-23

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2012-0939] RIN 1625-AA00 Safety Zone; Steam Ship Col. James M. Schoonmaker Relocation Project, Maumee River, Toledo, OH...-0939 as follows: Sec. 165.T09-0939 Safety Zone; Steam Ship Col. James M. Schoonmaker relocation project...

  18. Fault zone architecture within Miocene-Pliocene syn-rift sediments, Northwestern Red Sea, Egypt

    NASA Astrophysics Data System (ADS)

    Zaky, Khairy S.

    2017-04-01

    The present study focusses on field description of small normal fault zones in Upper Miocene-Pliocene sedimentary rocks on the northwestern side of the Red Sea, Egypt. The trend of these fault zones is mainly NW-SE. Paleostress analysis of 17 fault planes and slickenlines indicate that the tension direction is NE-SW. The minimum ( σ3) and intermediate ( σ2) paleostress axes are generally sub-horizontal and the maximum paleostress axis ( σ1) is sub-vertical. The fault zones are composed of damage zones and fault core. The damage zone is characterized by subsidiary faults and fractures that are asymmetrically developed on the hanging wall and footwall of the main fault. The width of the damage zone varies for each fault depending on the lithology, amount of displacement and irregularity of the fault trace. The average ratio between the hanging wall and the footwall damage zones width is about 3:1. The fault core consists of fault gouge and breccia. It is generally concentrated in a narrow zone of ˜0.5 to ˜8 cm width. The overall pattern of the fault core indicates that the width increases with increasing displacement. The faults with displacement < 1 m have fault cores ranging from 0.5 to 4.0 cm, while the faults with displacements of > 2 m have fault cores ranging from 4.0 to 8.0 cm. The fault zones are associated with sliver fault blocks, clay smear, segmented faults and fault lenses' structural features. These features are mechanically related to the growth and linkage of the fault arrays. The structural features may represent a neotectonic and indicate that the architecture of the fault zones is developed as several tectonic phases.

  19. 76 FR 63199 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-12

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... of Engineers' scheduled maintenance shutdown of Barrier IIB. During the enforcement period, entry...

  20. Comparison between satellite precipitation product and observation rain gauges in the Red-Thai Binh River Basin

    NASA Astrophysics Data System (ADS)

    Lakshmi, V.; Le, M. H.; Sutton, J. R. P.; Bui, D. D.; Bolten, J. D.

    2017-12-01

    The Red-ThaiBinh River is the second largest river in Vietnam in terms of economic impact and is home to around 29 million people. The river has been facing challenges for water resources allocation, which require reliable and routine hydrological assessments. However, hydrological analysis is difficult due to insufficient spatial coverage by rain gauges. Satellite-based precipitation estimates are a promising alternative with high-resolution in both time and space. This study aims at investigating the uncertainties in satellite-based precipitation product TRMM 3B42 v7.0 by comparing them against in-situ measurements over the Red-ThaiBinh River basin. The TRMM 3B42 v7.0 are assessed in terms of seasonal, monthly and daily variations over a 17-year period (1998 - 2014). Preliminary results indicate that at a daily scale, except for low Mean Bias Error (MBE), satellite based rainfall product has weak relationship with ground observation data, indicating by average performance of 0.326 and -0.485 for correlation coefficient and Nash Sutcliffe Efficiency (NSE), respectively. At monthly scale, we observe that the TRMM 3B42 v7.0 has higher correlation with the correlation increased significantly to 0.863 and NSE of 0.522. By analyzing wet season (May - October) and dry season (November - April) separately we find that the correlation between the TRMM 3B42 v7.0 with ground observations were higher for wet season than the dry season.

  1. 78 FR 77592 - Safety Zone; Lower Mississippi River Mile 94.1-Mile 95.1; New Orleans, LA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-24

    ... 1625-AA00 Safety Zone; Lower Mississippi River Mile 94.1-Mile 95.1; New Orleans, LA AGENCY: Coast Guard... zone is prohibited unless specifically authorized by the Captain of the Port New Orleans or a... temporary rule, call Lieutenant Commander (LCDR) Brandon Sullivan, Sector New Orleans, at (504) 365-2281 or...

  2. 33 CFR 165.T05-0495 - Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA. 165.T05-0495 Section 165.T05-0495 Navigation and... Areas Fifth Coast Guard District § 165.T05-0495 Safety Zone, Sugar House Casino Fireworks Display...

  3. 77 FR 2453 - Security Zone; 24th Annual North American International Auto Show, Detroit River, Detroit, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-18

    ... Docket Management Facility (M-30), U.S. Department of Transportation, West Building Ground Floor, Room.... The security zone will encompass an area of the Detroit River beginning at a point of origin on land... shoreline to connect back to the point of origin. Vessels in close proximity to the security zone will be...

  4. Sediment concentrations, loads, and particle-size distributions in the Red River of the North and selected tributaries near Fargo, North Dakota, during the 2011 spring high-flow event

    USGS Publications Warehouse

    Galloway, Joel M.; Blanchard, Robert A.; Ellison, Christopher A.

    2011-01-01

    Most of the bedload samples had particle sizes in the 0.5 to 1 millimeter and 0.25 to 0.5 millimeter ranges from the Maple River, Wild Rice River, Rush River, Buffalo River, and Red River sites. The Rush and Lower Branch Rush Rivers also had a greater portion of larger particle sizes in the 1 to 2 millimeter range. The Sheyenne River sites had a greater portion of smaller particle sizes in the bedload in the 0.125 to 0.5 millimeter range compared to the other sites. The bed material in samples collected during the 2011 spring high-flow event demonstrated a wider distribution of particle sizes than were observed in the bedload; the coarsest material was found at the Red River near Christine and the Lower Branch Rush River and the finest material at the Sheyenne River sites.

  5. The increasing sacrcity of red oaks in Mississippi river floodplain forestS: Influence of the residual overstory

    Treesearch

    Chadwick Dearing Oliver; E.C. Burkhardt; Daniel A. Skojac

    2005-01-01

    Red oaks - cherrybark oak (Quercus pagoda Raf.) willow oak (Quercus phellos L.), water oak (Quercus nigra L.), and Nuttall oak (Quercus texana Buckley; aka: Quercus nuttallii Palmer) - are not regrowing in Mississippi Delta river floodplain forests in the southeastern United...

  6. 76 FR 52266 - Safety Zone; Coast Guard Exercise, Detroit River, Ambassador Bridge to the Western Tip of Belle Isle

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-22

    ...-AA00 Safety Zone; Coast Guard Exercise, Detroit River, Ambassador Bridge to the Western Tip of Belle... Bridge to the western tip of Belle Isle. This safety zone is intended to restrict vessels from portions.... on August 23, 2011. The safety zone will begin at Ambassador Bridge to the western tip of Belle Isle...

  7. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD... § 165.120 Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. (a) Location. The following area... downstream of the Chelsea Street Bridge on the Chelsea, MA side of the Chelsea River—hereafter referred to as...

  8. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD... § 165.120 Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. (a) Location. The following area... downstream of the Chelsea Street Bridge on the Chelsea, MA side of the Chelsea River—hereafter referred to as...

  9. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD... § 165.120 Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. (a) Location. The following area... downstream of the Chelsea Street Bridge on the Chelsea, MA side of the Chelsea River—hereafter referred to as...

  10. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD... § 165.120 Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. (a) Location. The following area... downstream of the Chelsea Street Bridge on the Chelsea, MA side of the Chelsea River—hereafter referred to as...

  11. 76 FR 78161 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-16

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... the U.S. Army Corps of Engineers' maintenance operations of dispersal barrier IIB. During these...

  12. 77 FR 25595 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-01

    ... Zone, Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship...; Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago Sanitary and Ship Canal... Corps of Engineers' post-maintenance testing of Barrier IIA and IIB. During the enforcement period...

  13. Hazardous geology zoning and influence factorsin the near-shore shallow strata and seabed surfaceof the modern Yellow River Delta, China

    NASA Astrophysics Data System (ADS)

    Li, P.

    2016-12-01

    In this study, on the basis of 3,200 km shallow stratigraphic section and sidescan sonar data of the coastal area of the Yellow River Delta, we delineated and interpreted a total of seven types of typical hazardous geologies, including the hazardous geology in the shallow strata (buried ancient channel and strata disturbance) and hazardous geology in the seabed surface strata (pit, erosive residual body, sand patch, sand wave and scour channel). We selected eight parameters representing the development scale of the hazardous geology as the zoning indexes, including the number of hazardous geology types, pit depth, height of erosive residual body, length of scour channel, area of sand patch, length of sand wave, width of the buried ancient channel and depth of strata disturbance, and implemented the grid processing of the research area to calculate the arithmetic sum of the zoning indexes of each unit grid one by one. We then adopted the clustering analysis method to divide the near-shore waters of the Yellow River Delta into five hazardous geology areas, namely the serious erosion disaster area controlled by Diaokou lobe waves, hazardous geology area of multi-disasters under the combined action of the Shenxiangou lobe river wave flow, accumulation type hazardous geology area controlled by the current estuary river, hazardous geology area of single disaster in the deep water area and potential hazardous geology area of the Chengdao Oilfield. All four of the main factors affecting the development of hazardous geology, namely the diffusion and movement of sediment flux of the Yellow River water entering the sea, seabed stability, bottom sediment type and distribution, as well as the marine hydrodynamic characteristics, show significant regional differentiation characteristics and laws. These characteristics and laws are consistent with the above-mentioned zoning results, in which the distribution, scale and genetic mechanism of hazardous geology are considered

  14. 77 FR 31186 - Security Zone; USS MISSISSIPPI Commissioning; Pascagoula Harbor & Pascagoula River; Pascagoula, MS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-25

    ... significant effect on the human environment. This rule involves security during the arrival, commissioning... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2012-0333] RIN 1625-AA87 Security Zone; USS MISSISSIPPI Commissioning; Pascagoula Harbor & Pascagoula River; Pascagoula, MS...

  15. Detrital Geochemical Fingerprints of Rivers Along Southern Tibet and Nepal: Implications for Erosion of the Indus-Yarlung Suture Zone and the Himalayas

    NASA Astrophysics Data System (ADS)

    Hassim, M. F. B.; Carrapa, B.; DeCelles, P. G.; Kapp, P. A.; Gehrels, G. E.

    2014-12-01

    Our detrital geochemical study of modern sand collected from tributaries of the Yarlung River in southern Tibet and the Kali Gandaki River and its tributaries in Nepal shed light on the ages and exhumation histories of source rocks within the Indus-Yarlung Suture (IYS) zone and the Himalayas. Seven sand samples from rivers along the suture zone in southern Tibet between Xigatze to the east and Mt. Kailas to the west were collected for detrital zircon U-Pb geochronologic and Apatite Fission Track (AFT) thermochronologic analyses. Zircon U-Pb ages for all rivers range between 15 and 3568 Ma. Rivers draining the northern side of the suture zone mainly yield ages between 40 and 60 Ma, similar to the age of the Gangdese magmatic arc. Samples from rivers draining the southern side of the suture zone record a Tethyan Himalayan signal characterized by age clusters at 500 Ma and 1050 Ma. Our results indicate that the ages and proportion of U-Pb zircons ages of downstream samples from tributaries of the Yarlung River directly reflect source area ages and relative area of source rock exposure in the catchment basin. Significant age components at 37 - 40 Ma, 47 - 50 Ma, 55 - 58 Ma and 94 - 97 Ma reflect episodicity in Gangdese arc magmatism. Our AFT ages show two main signals at 23-18 Ma and 12 Ma, which are in agreement with accelerated exhumation of the Gangdese batholith during these time intervals. The 23 - 18 Ma signal partly overlaps with deposition of the Kailas Formation along the suture zone and may be related to exhumation due to upper plate extension in southern Tibet in response to Indian slab rollback and/or break-off events. Detrital thermochronology of four sand samples from the Kali Gandaki River and some of its tributaries in Nepal is underway and will provide constraints on the timing of erosion of the central Nepal Himalaya.

  16. 33 CFR 165.T13-149 - Safety Zone; McNary-John Day Transmission Line Project, Columbia River, Hermiston, OR.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Transmission Line Project, Columbia River, Hermiston, OR. 165.T13-149 Section 165.T13-149 Navigation and... Project, Columbia River, Hermiston, OR. (a) Location: The following is a safety zone: All waters of the Columbia River between two lines with the first line starting at the north bank at 45° 56′ 16.5″ N/119° 19...

  17. Simulation Tools for Forest Health Analysis: An Application in the Red River Watershed, Idaho

    Treesearch

    Andrew J. McMahan; Eric L. Smith

    2006-01-01

    Software tools for landscape analyses--including FVS model extensions, and a number of FVS-related pre- and post-processing “tools”--are presented, using an analysis in the Red River Watershed, Nez Perce National Forest as an example. We present (1) a discussion of pre-simulation data analysis; (2) the Physiographic Information Extraction System (PIES), a tool that can...

  18. Habitat preferences of foraging red-cockaded woodpeckers at the Savannah River Site, South Carolina

    Treesearch

    Kathleen E. Franzreb

    2004-01-01

    I conducted a foraging study to examine habitat use of red-cockaded woodpeckers at the Savannah River Site, South Carolina. Because much of the land had been harvested in the late 1940s and early 1950s prior to being sold to the Department of Energy, the available habitat largely consisted of younger trees (e.g., less than 40 years old). From 1992 to 1995, I examined...

  19. Integrated and Sustainable Water Management of Red-Thai Binh Rivers System Under Change

    NASA Astrophysics Data System (ADS)

    Giuliani, M.; Anghileri, D.; Castelletti, A.; Mason, E.; Micotti, M.; Soncini-Sessa, R.; Weber, E.

    2014-12-01

    Vietnam is currently undergoing a rapid economic and demographic development, characterized by internal migrations from the rural areas to the main cities with increasing water demands to guarantee adequate energy and food productions. Hydropower is the primary renewable energy resource in the country, accounting for 33% of the total electric power production, while agriculture contributes for 18% of the national GDP and employs 70% of the population. To cope with this heterogeneous and fast-evolving context, water resources development and management have to be reconsidered by enlarging their scope across sectors and by adopting effective tools to analyze the potential of current and projected infrastructure along with their operating strategies. This work contributes a novel decision-analytic framework based on Multi-Objective Evolutionary Direct Policy Search (MOE-DPS) to support the design of integrated and sustainable water resources management strategies in the Red-Thai Binh River system. The Red River Basin is the second largest basin of Vietnam, with a total area of about 169,000 km2, and comprises three main tributaries and several reservoirs, namely SonLa and HoaBinh on the Da River, ThacBa and TuyenQuang on the Lo River. These reservoirs are regulated for maximizing hydropower production, mitigating flood primarily in Hanoi, and guaranteeing irrigation water supply to the agricultural districts in the delta. The dimensionality of the system and the number of objectives involved increase the complexity of the problem. We address these challenges by combining the MOE-DPS framework with Gaussian radial basis functions policy approximation and the Borg MOEA, which have been demonstrated to guarantee good solutions quality in such many objective policy design problems. Results show that the proposed framework successfully identified alternative management strategies for the system, which explore different tradeoffs among the multi-sector services involved

  20. Seismic-reflection profiles of the New Madrid seismic zone-data along the Mississippi River near Caruthersville, Missouri

    USGS Publications Warehouse

    Crone, A.J.; Harding, S.T.; Russ, D.P.; Shedlock, K.M.

    1986-01-01

    Three major seismic-reflection programs have been conducted by the USGS in the New Madrid seismic zone. The first program consisted of 32 km of conventional Vibroseis profiling designed to investigate the subsurface structure associated with scarps and lineaments in northwestern Tennessee (Zoback, 1979). A second, more extensive Vibroseis program collected about 250 km of data from all parts of the New Madrid seismic zone in Missouri, Arkansas, and Tennessee (Hamilton and Zoback, 1979, 1982; Zoback and others, 1980). The profiles presented here are part of the third program that collected about 240 km of high-resolution seismic-reflection data from a boat along the Mississippi River between Osceola, Ark., and Wickliffe, Ky. (fig. 1). The data for profiles A, B, C, and D were collected between river miles 839-1/2 and 850-1/2 from near the Interstate-155 bridge to upstream of Caruthersville, Mo. (fig. 2). Profiles on this part of the river are important for three reasons: (1) they connect many of the land-based profiles on either side of the river, (2) they are near the northeast termination of a linear, 120km-long, northeast-southwest zone of seismicity that extends from northeast Arkansas to Caruthersville, Mo. (Stauder, 1982; fig. 1), and (3) they cross the southwesterly projection of the Cottonwood Grove fault (fig. 1), a fault having a substantial amount of vertical Cenozoic offset (Zoback and others, 1980).

  1. The Effects of Positive Behavior Interventions and Support on Changing the Behavior of Red Zone Students

    ERIC Educational Resources Information Center

    Robinson, Fredrick

    2012-01-01

    In order to improve culture, safety, and climate, numerous schools nationwide are implementing Positive Behavior Interventions and Support (PBIS). The purpose of this study was to examine the effectiveness of the Positive Behavior Interventions and Support (PBIS) model for reducing high-risk behaviors of students identified as red zone. The…

  2. Mixing zone hydrodynamics in a large confluence: a case study of the Snake and Clearwater Rivers confluence

    NASA Astrophysics Data System (ADS)

    Shehata, M. M.; Petrie, J.

    2015-12-01

    Confluences are a basic component in all fluvial systems, which are often characterized by complex flow and sediment transport patterns. Addressing confluences, however, started only recently in parallel with new advances of flow measurement tools and computational techniques. A limited number of field studies exist investigating flow hydrodynamics through confluences, particularly for large confluences with central zone widths of 100 m or greater. Previous studies have indicated that the size of the confluent rivers and the post-confluence zone may impact flow and sediment transport processes in the confluence zone, which consequently could impact the biodiversity within the river network. This study presents the results of a field study conducted at the confluence of the Snake and the Clearwater rivers near the towns of Clarkston, WA and Lewiston, ID (average width of 700 m at the confluence center). This confluence supports many different and, sometimes, conflicting purposes including commercial navigation, recreation, and fish and wildlife conservation. The confluence properties are affected by dredging operations carried out periodically to maintain the minimum water depth required for safe flow conveyance and navigation purposes. Also, a levee system was constructed on the confluence banks as an extra flood control measure. In the recent field work, an Acoustic Doppler Current Profiler was used to measure water velocity profiles at cross sections in the confluence region. Fixed and moving vessel measurements were taken at selected locations to evaluate both the spatial and temporal variation in velocity throughout the confluence. The confluence bathymetry was surveyed with a multi-beam sonar to investigate existent bed morphological elements. The results identify the velocity pattern in the mixing zone between the two rivers. The present findings are compared to previous studies on small confluences to demonstrate the influence of scale on flow processes.

  3. 77 FR 43591 - Tri-State Financial Co., LLC, (d/b/a North Country Ethanol), Red River Energy, LLC; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-25

    ... Financial Co., LLC, (d/b/a North Country Ethanol), Red River Energy, LLC; Notice of Filing Take notice that on July 10, 2012, Tri-State Financial Co., LLC, d/ b/a North Country Ethanol (Tri-State), and Red... the Tri- State's ethanol facility near Rosholt, in Roberts County, South Dakota (the Delivery Line...

  4. Persistence of uranium groundwater plumes: contrasting mechanisms at two DOE sites in the groundwater-river interaction zone.

    PubMed

    Zachara, John M; Long, Philip E; Bargar, John; Davis, James A; Fox, Patricia; Fredrickson, Jim K; Freshley, Mark D; Konopka, Allan E; Liu, Chongxuan; McKinley, James P; Rockhold, Mark L; Williams, Kenneth H; Yabusaki, Steve B

    2013-04-01

    We examine subsurface uranium (U) plumes at two U.S. Department of Energy sites that are located near large river systems and are influenced by groundwater-river hydrologic interaction. Following surface excavation of contaminated materials, both sites were projected to naturally flush remnant uranium contamination to levels below regulatory limits (e.g., 30 μg/L or 0.126 μmol/L; U.S. EPA drinking water standard), with 10 years projected for the Hanford 300 Area (Columbia River) and 12 years for the Rifle site (Colorado River). The rate of observed uranium decrease was much lower than expected at both sites. While uncertainty remains, a comparison of current understanding suggests that the two sites have common, but also different mechanisms controlling plume persistence. At the Hanford 300 A, the persistent source is adsorbed U(VI) in the vadose zone that is released to the aquifer during spring water table excursions. The release of U(VI) from the vadose zone and its transport within the oxic, coarse-textured aquifer sediments is dominated by kinetically-limited surface complexation. Modeling implies that annual plume discharge volumes to the Columbia River are small (zone and a continuous influx of U(VI) from natural, up-gradient sources influence plume persistence. Rate-limited mass transfer and surface complexation also control U(VI) migration velocity in the sub-oxic Rifle groundwater. Flux of U(VI) from the vadose zone at the Rifle site may be locally important, but it is not the dominant process that sustains the plume. A wide range in microbiologic functional diversity exists at both sites. Strains of Geobacter and other metal reducing bacteria are present at low natural abundance that are capable of enzymatic U(VI) reduction in localized zones of accumulated detrital organic carbon or after organic carbon amendment. Major differences between the

  5. Persistence of uranium groundwater plumes: Contrasting mechanisms at two DOE sites in the groundwater-river interaction zone

    NASA Astrophysics Data System (ADS)

    Zachara, John M.; Long, Philip E.; Bargar, John; Davis, James A.; Fox, Patricia; Fredrickson, Jim K.; Freshley, Mark D.; Konopka, Allan E.; Liu, Chongxuan; McKinley, James P.; Rockhold, Mark L.; Williams, Kenneth H.; Yabusaki, Steve B.

    2013-04-01

    We examine subsurface uranium (U) plumes at two U.S. Department of Energy sites that are located near large river systems and are influenced by groundwater-river hydrologic interaction. Following surface excavation of contaminated materials, both sites were projected to naturally flush remnant uranium contamination to levels below regulatory limits (e.g., 30 μg/L or 0.126 μmol/L; U.S. EPA drinking water standard), with 10 years projected for the Hanford 300 Area (Columbia River) and 12 years for the Rifle site (Colorado River). The rate of observed uranium decrease was much lower than expected at both sites. While uncertainty remains, a comparison of current understanding suggests that the two sites have common, but also different mechanisms controlling plume persistence. At the Hanford 300 A, the persistent source is adsorbed U(VI) in the vadose zone that is released to the aquifer during spring water table excursions. The release of U(VI) from the vadose zone and its transport within the oxic, coarse-textured aquifer sediments is dominated by kinetically-limited surface complexation. Modeling implies that annual plume discharge volumes to the Columbia River are small (< one pore volume). At the Rifle site, slow oxidation of naturally reduced, contaminant U(IV) in the saturated zone and a continuous influx of U(VI) from natural, up-gradient sources influence plume persistence. Rate-limited mass transfer and surface complexation also control U(VI) migration velocity in the sub-oxic Rifle groundwater. Flux of U(VI) from the vadose zone at the Rifle site may be locally important, but it is not the dominant process that sustains the plume. A wide range in microbiologic functional diversity exists at both sites. Strains of Geobacter and other metal reducing bacteria are present at low natural abundance that are capable of enzymatic U(VI) reduction in localized zones of accumulated detrital organic carbon or after organic carbon amendment. Major differences between

  6. Groundwater response to leakage of surface water through a thick vadose zone in the middle reaches area of Heihe River Basin, in China

    NASA Astrophysics Data System (ADS)

    Wang, X.-S.; Ma, M.-G.; Li, X.; Zhao, J.; Dong, P.; Zhou, J.

    2009-12-01

    The behavior of groundwater response to leakage of surface water in the middle reaches area of Heihe River Basin is significantly influenced by a thick vadose zone. The variation of groundwater level is a result of two recharge events corresponding to leakage of Heihe River and irrigation water with different delay time. A nonlinear leakage model is developed to calculate the monthly leakage of Heihe River in considering changes of streamflow, river stage and agricultural water utilization. Numerical modeling of variable saturated flow is carried out to investigate the general behaviors of leakage-recharge conversion through a thick vadose zone. It is found that the variable recharge can be approximated by simple reservoir models for both leakage under a river and leakage under an irrigation district but with different delay-time and recession coefficient. A triple-reservoir model of relationship between surface water, vadose zone and groundwater is developed. It reproduces the in situ water table movement during 1989-2006 with variable streamflow of Heihe River and agricultural water utilization. The model is applied to interpret groundwater dynamics during 2007-2008 that observed in the Watershed Airborne Telemetry Experimental Research (WATER).

  7. Groundwater response to leakage of surface water through a thick vadose zone in the middle reaches area of Heihe River Basin, in China

    NASA Astrophysics Data System (ADS)

    Wang, X.-S.; Ma, M.-G.; Li, X.; Zhao, J.; Dong, P.; Zhou, J.

    2010-04-01

    The behavior of groundwater response to leakage of surface water in the middle reaches area of Heihe River Basin is significantly influenced by a thick vadose zone. The groundwater regime is a result of two recharge events due to leakage of Heihe River and irrigation water with different delay time. A nonlinear leakage model is developed to calculate the monthly leakage of Heihe River in considering changes of streamflow, river stage and agricultural water utilization. Numerical modeling of variable saturated flow is carried out to investigate the general behaviors of leakage-recharge conversion through a thick vadose zone. It is found that the recharge pattern can be approximated by simple reservoir models of leakages under a river and under an irrigation district with different delay-time and recession coefficient. A triple-reservoir model of relationship between surface water, vadose zone and groundwater is developed. It reproduces the groundwater regime during 1989-2006 with variable streamflow of Heihe River and agricultural water utilization. The model is applied to interpret changes of groundwater level during 2007-2008 that observed in the Watershed Airborne Telemetry Experimental Research (WATER).

  8. 78 FR 42733 - Safety Zone; Cleveland Dragon Boat Festival and Head of the Cuyahoga, Cuyahoga River, Cleveland, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-17

    ...-AA00 Safety Zone; Cleveland Dragon Boat Festival and Head of the Cuyahoga, Cuyahoga River, Cleveland... intended to restrict vessels from a portion of the Cuyahoga River during the Dragon Boat Festival and Head... over a decade and the Dragon Boat Festival for the last 7 years. In response to past years' events, the...

  9. Exploring the Potential for Sustainable Future Bioenergy Production in the Arkansas-White-Red River Basin

    NASA Astrophysics Data System (ADS)

    Baskaran, L.; Jager, H.; Kreig, J.

    2016-12-01

    Bioenergy production in the US has been projected to increase in the next few years and this has raised concerns over environmentally sustainable production. Specifically, there are concerns that managing lands to produce bioenergy feedstocks in the Mississippi-Atchafalaya River Basin (MARB) may have impacts over the water quality in the streams draining these lands and hamper with efforts to reduce the size of the Gulf of Mexico's "Dead Zone" (hypoxic waters). However, with appropriate choice of feedstocks and good conservation practices, bioenergy production systems can be environmentally and economically sustainable. We evaluated opportunities for producing 2nd generation cellulosic feedstocks that are economically sustainable and improve water quality in the Arkansas-White-Red (AWR) river basin, which is major part of the MARB. We generated a future bioenergy landscape by downscaling county-scale projections of bioenergy crop production produced by an economic model, POLYSYS, at a market price of $60 per dry ton and a 1% annual yield increase. Our future bioenergy landscape includes perennial grasses (switchgrass and miscanthus), short-rotated woody crops (poplar and willow) and annual crops (high yield sorghum, sorghum stubble, corn stover and wheat straw). Using the Soil and Water Assessment Tool (SWAT) we analyzed changes in water quality and quantity by simulating a baseline scenario with the current landscape (2014 land cover) and a future scenario with the bioenergy landscape. Our results over the AWR indicate decreases in median nutrient and sediment loadings from the baseline scenario. We also explored methods to evaluate if conservation practices (such as reducing fertilizer applications, incorporating filter strips, planting cover crops and moving to a no-till system) can improve water quality, while maintaining biomass yield. We created a series of SWAT simulations with varying levels of conservation practices by crop and present our methods towards

  10. Probing Subsurface and Stream Particle Composition Through Optical Analysis at the Eel River Critical Zone Observatory

    NASA Astrophysics Data System (ADS)

    Nghiem, A.; Thurnhoffer, B. M.; Bishop, J. K. B.; Kim, H.

    2014-12-01

    Particles constitute a significant portion of the flux weathered material from continents to ocean basins but little is understood about their seasonal dynamics particularly in subsurface and headwater stream environments. At the Eel River Critical Zone Observatory, located near the headwaters of the South Fork Eel River in the Angelo Coast Range Reserve (Northern California), groundwater from weathered bedrock and stream waters are sampled at a frequency of one to three days from three wells (Well 1 down-slope, Well 3 mid-slope, Well 10 upper-slope) and Elder Creek. Approximately one thousand samples collected by automated ISCO Gravity Filtration System (GFS; Kim et al. 2012, EST) since 2011 have been filtered through 0.45 μm 25 mm diameter Supor filters. Filters imaged under controlled lighting are analyzed for red, green, and blue optical density (OD) to enable rapid assessment of sample loading and color as a prelude to and selection aid for more labor-intensive ICP-MS and Scanning Electron Microscopic analysis. For example, samples with lower red OD relative to green and blue may correspond to samples high in Mn/Fe oxides. Optical imaging of the loaded filters provides a time-series over three years and color anomalies in these filters along with chemical analysis of dissolved and particulate filtrate is used to establish a method for calibrating optical data to interpret chemical composition of water and particles. Results are interpreted within a framework of environmental data such as rainfall, stream discharge and turbidity, and water table depth measured at the heavily monitored forested hillslope. Data from the four locations range up to 0.6 OD units with a typical detection limit of better than 0.01 OD units. At Well 10, wet season filter samples exhibit highest particle loading (OD ~ 0.3) with values rapidly decreasing during the dry season (OD < D.L.) water table recession. At Well 1, particle loads instantaneously reflect intense rain events

  11. 33 CFR 165.T08-0238 - Safety Zone; Cincinnati Symphony Orchestra Fireworks Displays Ohio River, Mile 460.9-461.3...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Orchestra Fireworks Displays Ohio River, Mile 460.9-461.3, Cincinnati, OH. 165.T08-0238 Section 165.T08-0238... Fireworks Displays Ohio River, Mile 460.9-461.3, Cincinnati, OH. (a) Location. The following area is a temporary safety zone: all waters of the Ohio River, surface to bottom, from mile 460.9 to mile 461.3 on the...

  12. INTELLIGENT COMPUTING SYSTEM FOR RESERVOIR ANALYSIS AND RISK ASSESSMENT OF THE RED RIVER FORMATION

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

    Kenneth D. Luff

    2002-06-30

    Integrated software has been written that comprises the tool kit for the Intelligent Computing System (ICS). Luff Exploration Company is applying these tools for analysis of carbonate reservoirs in the southern Williston Basin. The integrated software programs are designed to be used by small team consisting of an engineer, geologist and geophysicist. The software tools are flexible and robust, allowing application in many environments for hydrocarbon reservoirs. Keystone elements of the software tools include clustering and neural-network techniques. The tools are used to transform seismic attribute data to reservoir characteristics such as storage (phi-h), probable oil-water contacts, structural depths andmore » structural growth history. When these reservoir characteristics are combined with neural network or fuzzy logic solvers, they can provide a more complete description of the reservoir. This leads to better estimates of hydrocarbons in place, areal limits and potential for infill or step-out drilling. These tools were developed and tested using seismic, geologic and well data from the Red River Play in Bowman County, North Dakota and Harding County, South Dakota. The geologic setting for the Red River Formation is shallow-shelf carbonate at a depth from 8000 to 10,000 ft.« less

  13. INTELLIGENT COMPUTING SYSTEM FOR RESERVOIR ANALYSIS AND RISK ASSESSMENT OF THE RED RIVER FORMATION

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

    Kenneth D. Luff

    2002-09-30

    Integrated software has been written that comprises the tool kit for the Intelligent Computing System (ICS). Luff Exploration Company is applying these tools for analysis of carbonate reservoirs in the southern Williston Basin. The integrated software programs are designed to be used by small team consisting of an engineer, geologist and geophysicist. The software tools are flexible and robust, allowing application in many environments for hydrocarbon reservoirs. Keystone elements of the software tools include clustering and neural-network techniques. The tools are used to transform seismic attribute data to reservoir characteristics such as storage (phi-h), probable oil-water contacts, structural depths andmore » structural growth history. When these reservoir characteristics are combined with neural network or fuzzy logic solvers, they can provide a more complete description of the reservoir. This leads to better estimates of hydrocarbons in place, areal limits and potential for infill or step-out drilling. These tools were developed and tested using seismic, geologic and well data from the Red River Play in Bowman County, North Dakota and Harding County, South Dakota. The geologic setting for the Red River Formation is shallow-shelf carbonate at a depth from 8000 to 10,000 ft.« less

  14. Pesticides detected in surface waters and fish of the Red River of the North drainage basin

    USGS Publications Warehouse

    Brigham, Mark E.

    1994-01-01

    Pesticide data have been collected in the Red River Basin by various Federal, State, and local agencies. Tornes and Brigham (1994) recently summarized many of these historical data. This paper summarizes selected data collected as part of the NAWQA program during 1992-93, and briefly compares these data to historical data and to pesticide usage.

  15. 78 FR 29020 - Safety Zone; Tennessee River, Mile 463.5 to 464.5; Chattanooga, TN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-17

    ... hazards associated with the Riverbend Festival fireworks. Entry into this zone is prohibited unless... protect persons and vessels from potential safety hazards associated with the Riverbend Festival fireworks. The Riverbend Festival fireworks display takes place on the Tennessee River and is launched from the...

  16. 77 FR 35848 - Safety Zone, Fourth of July Fireworks Event, Pagan River, Smithfield, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    .... ACTION: Temporary Final rule. SUMMARY: The Coast Guard is establishing a 420-foot radius safety zone on..., and falling hot embers or other debris, vessel traffic will be temporarily restricted within 420 feet... navigable waters of the Pagan River within the area bounded by a 420-foot radius circle centered on position...

  17. Inputs, source apportionment, and transboundary transport of pesticides and other polar organic contaminants along the lower Red River, Manitoba, Canada.

    PubMed

    Challis, Jonathan K; Cuscito, Leah D; Joudan, Shira; Luong, Kim H; Knapp, Charles W; Hanson, Mark L; Wong, Charles S

    2018-04-20

    The Red River originates in the U.S., drains into Lake Winnipeg, and is a significant pathway for nutrients. We investigate its role as a source for pesticides, pharmaceuticals, per- and polyfluoroalkyl substances (PFASs), and microbes bearing antibiotic resistance genes (ARGs). We delineate agricultural, urban, and rural land-use for organic contaminants to determine the extent of chemical transboundary riverine fluxes, and characterize levels and trends of organic contaminants and ARGs between spring and fall 2014 and 2015. The herbicide atrazine peaked at over 500 ng/L (14-day time-weighted average) near the border, indicating that the U.S. represents the major source into Canada from the Red River. Neonicotinoid insecticides had relatively constant concentrations, suggesting more widespread agricultural use in both countries. Pesticide concentrations were greatest post-application in June and July. Mass loadings of pesticides over the sampling periods, from the river to Lake Winnipeg, ranged from approximately 800 kg of atrazine, to 120 kg of thiamethoxam and clothianidin, to 40 kg of imidacloprid. Exposure distributions for atrazine exceeded benchmark water quality guidelines for protection of aquatic life (0.2% probability of exceeding chronic benchmark) with no exceedances for neonicotinoids. Seven pharmaceuticals were detected, mostly at low ng/L levels downstream of the City of Winnipeg wastewater treatment plant. Carbamazepine, the only pharmaceutical detected consistently at all sites, contributed on average 20 kg each year into Lake Winnipeg. While minor inputs were observed all along the river, city inputs represented the greatest source of pharmaceuticals to the river. Both PFASs and ARGs were observed consistently and ubiquitously, indicative of an anthropogenically-influenced system with no indications of any single point-source signature. While transboundary flux from the U.S. was an important source of pesticides to the Red River

  18. Has irrigated water from Mahaweli River contributed to the kidney disease of uncertain etiology in the dry zone of Sri Lanka?

    PubMed

    Diyabalanage, Saranga; Abekoon, Sumith; Watanabe, Izumi; Watai, Chie; Ono, Yuko; Wijesekara, Saman; Guruge, Keerthi S; Chandrajith, Rohana

    2016-06-01

    The Mahaweli is the largest river basin in Sri Lanka that provides water to the dry zone region through multipurpose irrigation schemes . Selenium, arsenic, cadmium, and other bioimportant trace elements in surface waters of the upper Mahaweli River were measured using ICP-MS. Trace element levels were then compared with water from two other rivers (Maha Oya, Kalu Ganga) and from six dry zone irrigation reservoirs. Results showed that the trace metal concentrations in the Mahaweli upper catchment were detected in the order of Fe > Cu > Zn > Se > Cr > Mn > As > Ni > Co > Mo. Remarkably high levels of Ca, Cr, Co, Ni, Cu, As, and Se were observed in the Mahaweli Basin compared to other study rivers. Considerably high levels of Cr, Mn, Fe, Co, Ni, Cu, Zn, As, and Se were found in upstream tributaries of the Mahaweli River. Such metals possibly originated from phosphate and organic fertilizers that are heavily applied for tea and vegetable cultivations within the drainage basin. Cadmium that is often attributed to the etiology of unknown chronic kidney diseases in certain parts of the dry zone is much lower than previously reported levels. Decrease in these metals in the lower part of the Mahaweli River could be due to adsorption of trace metals onto sediment and consequent deposition in reservoirs.

  19. Associations Between Macroinvertebrates and Paralemanea mexicana, an Endemic Freshwater Red Alga from a Mountain River in Central Mexico.

    PubMed

    Caro-Borrero, A; Carmona-Jiménez, J

    2016-12-01

    Macrophytes are common inhabitants of lotic environments and, depending on their morphological traits, possess adaptations that provide shelter to aquatic invertebrates against strong river flow and predators. They may also be used as a food source by macroinvertebrates. The main goal of this study was to determine the relationship between the red alga Paralemanea mexicana and its role as a shelter and/or food source for lotic macroinvertebrates. We also conducted research on the role of microhabitat and morphological variations of the alga in determining macroinvertebrate taxon abundance, diversity, and functional group composition in a high-current velocity river. Results showed that changes in cover and morphology of P. mexicana were mostly correlated with river current velocity, irradiance, and seasonal variation. In turn, these were related to changes in abundance and diversity of the associated macroinvertebrate community. In addition, six macroinvertebrate functional feeding groups were evaluated for associations with the red alga: filtering and gathering collectors, piercers, scrapers, herbivore shredders, and predators. The results showed that the Trichoptera Hydroptilidae genera Ochrotrichia and Metrichia use P. mexicana as a food source and case-building material. The Trichoptera Glossosomatidae Mortoniella uses the alga as a substrate. The biotic interactions between P. mexicana and associated macroinvertebrates reveal the importance of macrophytes as purveyors of substrate, as food and shelter for macroinvertebrates, and also as promoters of macroinvertebrate community diversity. In addition, it was shown that macroinvertebrate herbivory likely facilitates vegetative propagation of the red alga through increased release and germination of carpospores and new gametophytes.

  20. 78 FR 53668 - Regulated Navigation Area; Maine Kennebec Bridge Construction Zone, Kennebec River, Richmond, ME

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-30

    ...-AA11 Regulated Navigation Area; Maine Kennebec Bridge Construction Zone, Kennebec River, Richmond, ME... surrounding the Maine Kennebec Bridge between Richmond, ME, and Dresden, ME. This RNA allows the Coast Guard to enforce speed and wake restrictions and prohibit all vessel traffic through the RNA during bridge...

  1. DIN retention-transport through four hydrologically connected zones in a headwater catchment of the Upper Mississippi River

    USGS Publications Warehouse

    Triska, F.J.; Duff, J.H.; Sheibley, R.W.; Jackman, A.P.; Avanzino, R.J.

    2007-01-01

    Dissolved inorganic nitrogen (DIN) retention-transport through a headwater catchment was synthesized from studies encompassing four distinct hydrologic zones of the Shingobee River Headwaters near the origin of the Mississippi River. The hydrologic zones included: (1) hillslope ground water (ridge to bankside riparian); (2) alluvial riparian ground water; (3) ground water discharged through subchannel sediments (hyporheic zone); and (4) channel surface water. During subsurface hillslope transport through Zone 1, DIN, primarily nitrate, decreased from ???3 mg-N/l to <0.1 mg-N/l. Ambient seasonal nitrate:chloride ratios in hillslope flow paths indicated both dilution and biotic processing caused nitrate loss. Biologically available organic carbon controlled biotic nitrate retention during hillslope transport. In the alluvial riparian zone (Zone 2) biologically available organic carbon controlled nitrate depletion although processing of both ambient and amended nitrate was faster during the summer than winter. In the hyporheic zone (Zone 3) and stream surface water (Zone 4) DIN retention was primarily controlled by temperature. Perfusion core studies using hyporheic sediment indicated sufficient organic carbon in bed sediments to retain ground water DIN via coupled nitrification-denitrification. Numerical simulations of seasonal hyporheic sediment nitrification-denitrification rates from perfusion cores adequately predicted surface water ammonium but not nitrate when compared to 5 years of monthly field data (1989-93). Mass balance studies in stream surface water indicated proportionally higher summer than winter N retention. Watershed DIN retention was effective during summer under the current land use of intermittently grazed pasture. However, more intensive land use such as row crop agriculture would decrease nitrate retention efficiency and increase loads to surface water. Understanding DIN retention capacity throughout the system, including special channel

  2. Construction of avulsion potential zone model for Kulik River of Barind Tract, India and Bangladesh.

    PubMed

    Sarkar, Debabrata; Pal, Swades

    2018-04-21

    Avulsion is a natural fluvial process but considered it as a hazard in the populated region due to the chance of immense failure of lives and properties. So, early warning indicates that the zone of avulsion can facilitate the people living there. About 317 numbers of local and regional historical imprints of channel cutoff along river Kulik claim the need of this work. The present study tried to identify avulsion potential zone (APZ) of Kulik river of Indo-Bangladesh using multi-parametric weighted combination approach. Analytic hierarchy approach (AHP) is applied for weighting the used parameters. Avulsion potential model clearly exhibits that 9.51-km stream segment of middle and lower catchment is highly susceptible for avulsion especially during sudden high discharge and earthquake incidents. There is also high chance of channel avulsion following the existing Paleo-avulsion courses and left channels. Hard points can also be erected alongside the main channel for resisting channel avulsion propensity.

  3. Quantifying water requirements of riparian river red gum (Eucalyptus camaldulensis) in the Murray-Darling Basin, Australia: Implications for the management of environmental flows

    USGS Publications Warehouse

    Doody, Tanya M.; Colloff, Matthew J.; Davies, Micah; Koul, Vijay; Benyon, Richard G.; Nagler, Pamela L.

    2015-01-01

    Water resource development and drought have altered river flow regimes, increasing average flood return intervals across floodplains in the Murray-Darling Basin, Australia, causing health declines in riparian river red gum (Eucalyptus camaldulensis) forests and woodlands. Environmental flow allocations helped to alleviate water stress during the recent Millennium Drought (1997–2010), however, quantification of the flood frequency required to support healthy E. camaldulensis communities is still needed. We quantified water requirements of E. camaldulensis for two years across a flood gradient (trees inundated at frequencies of 1:2, 1:5 and 1:10 years) at Yanga National Park, New South Wales to help inform management decision-making and design of environmental flows. Sap flow, evaporative losses and soil moisture measurements were used to determine transpiration, evapotranspiration and plant-available soil water before and after flooding. A formula was developed using plant-available soil water post-flooding and average annual rainfall, to estimate maintenance time of soil water reserves in each flood frequency zone. Results indicated that soil water reserves could sustain 1:2 and 1:5 trees for 15 months and six years, respectively. Trees regulated their transpiration rates, allowing them to persist within their flood frequency zone, and showed reduction in active sapwood area and transpiration rates when flood frequencies exceeded 1:2 years. A leaf area index of 0.5 was identified as a potential threshold indicator of severe drought stress. Our results suggest environmental water managers may have greater flexibility to adaptively manage floodplains in order to sustain E. camaldulensis forests and woodlands than has been appreciated hitherto.

  4. [Relationship between groundwater quality index of nutrition element and organic matter in riparian zone and water quality in river].

    PubMed

    Hua-Shan, Xu; Tong-Qian, Zhao; Hong-Q, Meng; Zong-Xue, Xu; Chao-Hon, Ma

    2011-04-01

    Riparian zone hydrology is dominated by shallow groundwater with complex interactions between groundwater and surface water. There are obvious relations of discharge and recharge between groundwater and surface water. Flood is an important hydrological incident that affects groundwater quality in riparian zone. By observing variations of physical and chemical groundwater indicators in riparian zone at the Kouma section of the Yellow River Wetland, especially those took place in the period of regulation for water and sediment at the Xiaolangdi Reservoir, relationship between the groundwater quality in riparian zone and the flood water quality in the river is studied. Results show that there will be great risk of nitrogen, phosphorus, nitrate nitrogen and organic matter permeating into the groundwater if floodplain changes into farmland. As the special control unit of nitrogen pollution between rivers and artificial wetlands, dry fanning areas near the river play a very important role in nitrogen migration between river and groundwater. Farm manure as base fertilizer may he an important source of phosphorus leak and loss at the artificial wetlands. Phosphorus leaks into the groundwater and is transferred along the hydraulic gradient, especially during the period of regulation for water and sediment at the Xiaolangdi Reservoir. The land use types and farming systems of the riparian floodplain have a major impact on the nitrate nitrogen contents of the groundwater. Nitrogen can infiltrate and accumulate quickly at anaerobic conditions in the fish pond area, and the annual nitrogen achieves a relatively balanced state in lotus area. In those areas, the soil is flooded and at anaerobic condition in spring and summer, nitrogen infiltrates and denitrification significantly, but soil is not flooded and at aerobic condition in the autumn and winter, and during these time, a significant nitrogen nitrification process occurs. In the area between 50 m and 200 m from the river

  5. Time-lapse ERT and DTS for seasonal and short-term monitoring of an alpine river hyporheic zone

    NASA Astrophysics Data System (ADS)

    Boaga, Jacopo; Laura, Busato; Mariateresa, Perri; Giorgio, Cassiani

    2016-04-01

    The hyporheic zone (HZ) is the area located beneath and adjacent to rivers and streams, where the interactions between surface water and groundwater take place. This complex physical domain allows the transport of several substances from a stream to the unconfined aquifer below, and vice versa, thus playing a fundamental role in the river ecosystem. The importance of the hyporheic zone makes its characterization a goal shared by several disciplines, which range from applied geophysics to biogeochemistry, from hydraulics to ecology. The frontier field of HZ characterization stays in applied non-invasive methodologies as Electrical Resistivity Tomography - ERT - and Distributed Temperature Sensing - DTS. ERT is commonly applied in cross-well configuration or with a superficial electrodes deployment while DTS is used in hydro-geophysics in the last decade, revealing a wide applicability to the typical issues of this field of study. DTS for hydro-geophysics studies is based on Raman scattering and employs heat as tracer and uses a fiber-optic cable to acquire temperature values. We applied both techniques for an alpine river case studies located in Val di Sole, TN, Italy. The collected measurements allow high-resolution characterization of the hyporheic zone, overcoming the critical problem of invasive measurements under riverbeds. In this work, we present the preliminary results regarding the characterization of the hyporheic zone of the alpine river obtained combining ERT and DTS time-lapse measurements. The data collection benefits from an innovative instrumentation deployment, which consists of both an ERT multicore cable and a DTS fiber-optic located in two separated boreholes drilled 5m under the watercourse and perpendicular to it. In particular we present the first year monitoring results and a short time-lapse monitoring experiment conducted during summer 2015. The site and the results here described are part of the EU FP7 CLIMB (Climate Induced Changes on the

  6. Mortality associated with melarsomine dihydrochloride administration in two North American river otters (Lontra canadensis) and a red panda (Ailurus fulgens fulgens).

    PubMed

    Neiffer, Donald L; Klein, Edwin C; Calle, Paul P; Linn, Michael; Terrell, Scott P; Walker, Rodney L; Todd, Donna; Vice, Carol C; Marks, Steven K

    2002-09-01

    Two adult North American river otters (Lontra canadensis) and an adult red panda (Ailurus fulgens fulgens) at three separate institutions died within 22 hr after receiving single 2.5- to 2.7-mg/kg doses of melarsomine dihydrochloride administered in the epaxial musculature as a treatment for filarid nematodes. One otter had a suspected Dirofilaria immitis infection, the other had a confirmed D. lutrae infection, and the red panda had a confirmed Dirofilaria sp. infection, presumably with D. immitis. Postmortem examinations revealed similar gross lesions, although they were less severe in the red panda. The trachea and primary bronchi contained abundant foamy fluid, the lungs were mottled with areas of consolidation, and the pulmonary parenchyma exuded abundant fluid at the cut section. Histologic evaluation revealed acute pulmonary edema, which resulted in respiratory failure and death. There may have been direct pulmonary cellular toxicity of melarsomine dihydrochloride or a severe systemic anaphylactic reaction to antigens released after parasite death. An idiosyncratic drug reaction or a low therapeutic index of melarsomine probably caused the death of the three individuals. Melarsomine dihydrochloride use should be avoided in North American river otters and red pandas.

  7. Changes in total phosphorus concentration in the Red River of the North Basin, 1970-2012

    USGS Publications Warehouse

    Ryberg, Karen R.; Akyüz, F. Adnan; Lin, Wei

    2015-01-01

    The Red River of the North drains much of eastern North Dakota and northwestern Minnesota and flows north into Manitoba, Canada, ultimately into Lake Winnipeg; therefore, water quality is an International concern. With increased runoff in the past few decades, phosphorus flux (the amount of phosphorus transported by the river) has increased. This is a concern, especially with respect to Lake Winnipeg, an important inland fishery and recreational destination. There is pressure at the State and International levels to reduce phosphorus flux, an expensive proposition. Depending on the method (controlling sources, settling ponds, buffer strips), control of phosphorus flux is not always effective during spring runoff. This work represents a first step in developing a causal model for phosphorus flux by examining available data and changes in concentration over time. Total phosphorus concentration data for the Red River at Emerson, Manitoba, and at Fargo, North Dakota-Moorhead, Minnesota, were summarized and then analyzed using WRTDS (Weighted Regressions on Time, Discharge, and Season) to describe total phosphorus changes over time in two analysis periods: 1970-1993 and 1993-2012. Total phosphorus concentration increased in the first period at Emerson, Manitoba, indicating phosphorus was likely being transported to streams during runoff events. A very different pattern occurred at Fargo-Moorhead with declines in concentration, except at high discharge. While concentration continually changes, during the second period it decreased during spring runoff at Emerson and Fargo-Moorhead and during the growing season at Fargo-Moorhead, perhaps because of improved agricultural practices and declines in some uses of phosphorus.

  8. 33 CFR 165.839 - Safety Zone; Large Cruise Ships; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone; Large Cruise Ships... Areas and Limited Access Areas Eighth Coast Guard District § 165.839 Safety Zone; Large Cruise Ships; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. (a) Location...

  9. 33 CFR 165.839 - Safety Zone; Large Cruise Ships; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone; Large Cruise Ships... Areas and Limited Access Areas Eighth Coast Guard District § 165.839 Safety Zone; Large Cruise Ships; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. (a) Location...

  10. Seismic imaging of mantle transition zone discontinuities beneath the northern Red Sea and adjacent areas

    NASA Astrophysics Data System (ADS)

    Mohamed, A. A.; Gao, S. S.; Elsheikh, A. A.; Liu, K. H.; Yu, Y.; Fat-Helbary, R. E.

    2014-11-01

    The dramatic asymmetry in terms of surface elevation, Cenozoic volcanisms and earthquake activity across the Red Sea is an enigmatic issue in global tectonics, partially due to the unavailability of broad-band seismic data on the African Plate adjacent to the Red Sea. Here, we report the first comprehensive image of the mantle transition zone (MTZ) discontinuities using data from the Egyptian National Seismic Network, and compare the resulting depths of the 410 and 660-km discontinuities with those observed on the Arabian side. Our results show that when a standard earth model is used for time-to-depth conversion, the resulting depth of the discontinuities increases systematically towards the axis of the Afro-Arabian Dome (AAD) from both the west and east. Relative to the westernmost area, the maximum depression of the 410-km discontinuity is about 30 km, and that of the 660-km discontinuity is about 45 km. The observed systematic variations can best be explained by a model involving a hydrated MTZ and an upper-mantle low-velocity zone beneath the AAD. Models invoking one or more mantle plumes originated from the MTZ or the lower-mantle beneath the study area are not consistent with the observations.

  11. Linking hyporheic flow and nitrogen cycling near the Willamette River - A large river in Oregon, USA

    USGS Publications Warehouse

    Hinkle, S.R.; Duff, J.H.; Triska, F.J.; Laenen, A.; Gates, E.B.; Bencala, K.E.; Wentz, D.A.; Silva, S.R.

    2001-01-01

    Several approaches were used to characterize ground water/surface water interactions near the Willamette River - A large (ninth order) river in Oregon, USA. A series of potentiometric surface maps demonstrated the presence of highly dynamic hydraulic gradients between rivers and the adjacent aquifer. Hyporheic zone gradients extended on the order of hundreds of meters. River gains and losses at the river stretch scale (tens of kilometers) were consistent with fluxes implied by the potentiometric surface maps, and apparently reflect regional ground water/surface water interactions. Gains and losses of up to 5-10% of streamflow were observed at this scale. On the river reach scale (1-2 km), gains and losses on the order of 5% of streamflow were interpreted as representing primarily local hyporheic exchange. Isotopic and chemical data collected from shallow hyporheic zone wells demonstrated interaction between regional ground water and river water. The origin of sampled hyporheic zone water ranged from a mixture dominated by regional ground water to water containing 100% river water. The common assumption that ground and river water mix primarily in the river channel is not applicable in this system. Isotopic and chemical data also indicated that significant (nearly complete) vegetative nitrate uptake and/or nitrate reduction occurred in water from 4 of 12 hyporheic zone sites. In these cases, it was primarily nitrate transported to the hyporheic zone in regional ground water that was removed from solution. Isotopes of water and nitrate indicated that hyporheic zone water sampled at two sites was composed of water originating as river water and demonstrated that significant vegetative nitrate uptake and nitrate reduction occurred along these hyporheic zone flowpaths. Thus, the hyporheic zone may, in some instances, serve to remove nitrate from river water. Additional investigations with chemical tools and microbial enzyme assays were conducted at one hyporheic site. A

  12. A detached eddy simulation model for the study of lateral separation zones along a large canyon-bound river

    NASA Astrophysics Data System (ADS)

    Alvarez, Laura V.; Schmeeckle, Mark W.; Grams, Paul E.

    2017-01-01

    Lateral flow separation occurs in rivers where banks exhibit strong curvature. In canyon-bound rivers, lateral recirculation zones are the principal storage of fine-sediment deposits. A parallelized, three-dimensional, turbulence-resolving model was developed to study the flow structures along lateral separation zones located in two pools along the Colorado River in Marble Canyon. The model employs the detached eddy simulation (DES) technique, which resolves turbulence structures larger than the grid spacing in the interior of the flow. The DES-3D model is validated using Acoustic Doppler Current Profiler flow measurements taken during the 2008 controlled flood release from Glen Canyon Dam. A point-to-point validation using a number of skill metrics, often employed in hydrological research, is proposed here for fluvial modeling. The validation results show predictive capabilities of the DES model. The model reproduces the pattern and magnitude of the velocity in the lateral recirculation zone, including the size and position of the primary and secondary eddy cells, and return current. The lateral recirculation zone is open, having continuous import of fluid upstream of the point of reattachment and export by the recirculation return current downstream of the point of separation. Differences in magnitude and direction of near-bed and near-surface velocity vectors are found, resulting in an inward vertical spiral. Interaction between the recirculation return current and the main flow is dynamic, with large temporal changes in flow direction and magnitude. Turbulence structures with a predominately vertical axis of vorticity are observed in the shear layer becoming three-dimensional without preferred orientation downstream.

  13. Groundwater flow, nutrient, and stable isotope dynamics in the parafluvial-hyporheic zone of the regulated Lower Colorado River (Texas, USA) over the course of a small flood

    NASA Astrophysics Data System (ADS)

    Briody, Alyse C.; Cardenas, M. Bayani; Shuai, Pin; Knappett, Peter S. K.; Bennett, Philip C.

    2016-06-01

    Periodic releases from an upstream dam cause rapid stage fluctuations in the Lower Colorado River near Austin, Texas, USA. These daily pulses modulate fluid exchange and residence times in the hyporheic zone where biogeochemical reactions are typically pronounced. The effects of a small flood pulse under low-flow conditions on surface-water/groundwater exchange and biogeochemical processes were studied by monitoring and sampling from two dense transects of wells perpendicular to the river. The first transect recorded water levels and the second transect was used for water sample collection at three depths. Samples were collected from 12 wells every 2 h over a 24-h period which had a 16-cm flood pulse. Analyses included nutrients, carbon, major ions, and stable isotopes of water. The relatively small flood pulse did not cause significant mixing in the parafluvial zone. Under these conditions, the river and groundwater were decoupled, showed potentially minimal mixing at the interface, and did not exhibit any discernible denitrification of river-borne nitrate. The chemical patterns observed in the parafluvial zone can be explained by evaporation of groundwater with little mixing with river water. Thus, large pulses may be necessary in order for substantial hyporheic mixing and exchange to occur. The large regulated river under a low-flow and small flood pulse regime functioned mainly as a gaining river with little hydrologic connectivity beyond a narrow hyporheic zone.

  14. Interpretation of the coastal zone color scanner signature of the Orinoco River plume

    NASA Technical Reports Server (NTRS)

    Hochman, Herschel T.; Mueller-Karger, F. E.; Walsh, John J.

    1994-01-01

    The Caribbean Sea is an area that traditionally has been considered oligotrophic, even though the Orinoco River contributes large quantities of fresh water, nutrients, and other dissolved material to this region during the wet boreal (fall) season. Little is known about the impact of this seasonal river plume, which extends from Venezuela to Puetro Rico shortly after maximum discharge. Here, we present results from a study of the bio-optical characteristics of the Orinoco River plume during the rainy season. The objective was to determine whether the coastal zone color scanner (CZCS) and the follow-on sea-viewing wide-field-of-view sensor (SeaWiFS) satellite instrument can be used to assess the concentrations of substances in large river plumes. Recent in situ shipboard measurements were compared to values from representative historical CZCS images using established bio-optical models. Our goal was to deconvolve the signatures of colored dissolved organic carbon and phytoplankton pigments within satellite images of the Orinoco River plume. We conclude that the models may be used for case 2 waters and that as much as 50 percent of the remotely sensored chlorophyll biomass within the plume is an artifact due to the presence of dissolved organic carbon. Dissolved organic carbon originates from a number of sources, including decay of dead organisms, humic materials from the soil, and gelbstoff.

  15. 33 CFR 165.812 - Security Zones; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. 165.812 Section 165.812 Navigation..., Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. (a) Location. Within the Lower Mississippi... Lower Mississippi River mile marker 96.0 in New Orleans, Louisiana. These moving security zones...

  16. 33 CFR 165.T09-0290 - Safety Zones; Blasting Operations and Movement of Explosives, St. Marys River, Sault Sainte Marie...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zones; Blasting Operations and Movement of Explosives, St. Marys River, Sault Sainte Marie, MI. 165.T09-0290 Section 165.T09-0290... Movement of Explosives, St. Marys River, Sault Sainte Marie, MI. (a) Location. The following areas are...

  17. 76 FR 34859 - Safety Zone; Augusta Southern Nationals Drag Boat Race, Savannah River, Augusta, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-15

    ...-AA00 Safety Zone; Augusta Southern Nationals Drag Boat Race, Savannah River, Augusta, GA AGENCY: Coast... Boat Race. The Augusta Southern Nationals Drag Boat Race will consist of a series of high-speed boat... hazards associated with the high-speed boat races. Discussion of Rule From July 14, 2011 through July 17...

  18. 33 CFR 165.812 - Security Zones; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. (a) Location. Within the Lower Mississippi River and Southwest Pass, moving security zones are established around all cruise ships between the... encompass all waters within 500 yards of a cruise ship. These zones remain in effect during the entire...

  19. 33 CFR 165.812 - Security Zones; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. (a) Location. Within the Lower Mississippi River and Southwest Pass, moving security zones are established around all cruise ships between the... encompass all waters within 500 yards of a cruise ship. These zones remain in effect during the entire...

  20. 33 CFR 165.812 - Security Zones; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. (a) Location. Within the Lower Mississippi River and Southwest Pass, moving security zones are established around all cruise ships between the... encompass all waters within 500 yards of a cruise ship. These zones remain in effect during the entire...

  1. 33 CFR 165.812 - Security Zones; Lower Mississippi River, Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., Southwest Pass Sea Buoy to Mile Marker 96.0, New Orleans, LA. (a) Location. Within the Lower Mississippi River and Southwest Pass, moving security zones are established around all cruise ships between the... encompass all waters within 500 yards of a cruise ship. These zones remain in effect during the entire...

  2. Late-summer food of red-winged blackbirds in a fresh tidal-river marsh

    USGS Publications Warehouse

    Meanley, B.

    1961-01-01

    During late summer in the Delaware Valley and Chesapeake Bay region, hundreds of thousands of Red-winged Blackbirds feed in wild rice beds of fresh tidal-river marshes. The period during which wild rice seed is available coincides with the ripening period of a part of the corn crop, and there is evidence to indicate that the availability of the wild rice reduces bird feeding pressure on corn in the area. The importance of wild rice and other marsh plants to the redwing during the period when wild rice seed is available was studied further by field observations and by analysis of stomach contents of 130 birds collected in wild rice beds of the Patuxent River in southern Maryland. Seeds of marsh plants formed the bulk of the food of redwings collected. Dotted smartweed, wild rice, and Walter?s millet were the most important food plants. Corn was the fourth most important item. It occurred in 35, approximately one-fourth, of the stomachs

  3. Wide-area estimates of evapotranspiration by red gum (Eucalyptus camaldulensis) and associated vegetation in the Murray-Darling River Basin, Australia

    USGS Publications Warehouse

    Nagler, Pamela L.; Doody, Tanya M.; Glenn, Edward P.; Jarchow, Christopher J.; Barreto-Munoz, Armando; Didan, Kamel

    2016-01-01

    Floodplain red gum forests (Eucalyptus camaldulensis plus associated grasses, reeds and sedges) are sites of high biodiversity in otherwise arid regions of southeastern Australia. They depend on periodic floods from rivers, but dams and diversions have reduced flood frequencies and volumes, leading to deterioration of trees and associated biota. There is a need to determine their water requirements so environmental flows can be administered to maintain or restore the forests. Their water requirements include the frequency and extent of overbank flooding, which recharges the floodplain soils with water, as well as the actual amount of water consumed in evapotranspiration (ET). We estimated the flooding requirements and ET for a 38 134 ha area of red gum forest fed by the Murrumbidgee River in Yanga National Park, New South Wales. ET was estimated by three methods: sap flux sensors placed in individual trees; a remote sensing method based on the Enhanced Vegetation Index from MODIS satellite imagery and a water balance method based on differences between river flows into and out of the forest. The methods gave comparable estimates yet covered different spatial and temporal scales. We estimated flood frequency and volume requirements by comparing Normalized Difference Vegetation Index values from Landsat images with flood history from 1995 to 2014, which included both wet periods and dry periods. ET during wet years is about 50% of potential ET but is much less in dry years because of the trees' ability to control stomatal conductance. Based on our analyses plus other studies, red gum trees at this location require environmental flows of 2000 GL yr−1 every other year, with peak flows of 20 000 ML d−1, to produce flooding sufficient to keep them in good condition. However, only about 120–200 GL yr−1 of river water is consumed in ET, with the remainder flowing out of the forest where it enters the Murray River system.

  4. 77 FR 47493 - DMH Trust fbo Martha M. Head-Acquisition of Control Exemption-Red River Valley & Western Railroad...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-08

    ... Martha M. Head--Acquisition of Control Exemption-- Red River Valley & Western Railroad and Rutland Line, Inc. DMH Trust fbo Martha M. Head (the Trust), a noncarrier, has filed a verified notice of exemption...\\ both Class III rail carriers. \\1\\ RLI is a wholly owned subsidiary of RRVW. According to the Trust...

  5. Shallow ground-water quality beneath cropland in the Red River of the North Basin, Minnesota and North Dakota, 1993-95

    USGS Publications Warehouse

    Cowdery, Timothy K.

    1997-01-01

    Land-use factors that increased nitrate and herbicide concentrations were greater tilled area, chemical application, irrigation, and cropland contiguity. Hydrogeological factors that increased these concentrations were a deeper watertable (higher oxygen concentration and less organic carbon), larger grain-size and degree of sorting of aquifer material (shorter time in the soil zone and aquifer), and fewer sulfur-containing minerals (lignite and pyrite) composing the aquifer. High rainfall, just before sampling of the Sheyenne Delta aquifer, contributed to the relatively low nitrate and pesticide concentrations in the shallow ground water of this aquifer by raising the water table higher into the soil zone, increasing ponded water (increasing biodegradation), preventing some chemical application (flooded fields), and leaching and then displacing nitrate-rich water downward, beneath new recharge. The shallow ground-water quality measured beneath cropland in these land-use study areas covers a large range. The land-use, hydrogeological, and rainfall factors controlling this quality also control shallow ground-water quality in other surficial aquifers in the Red River of the North Basin. Although not used for drinking water, 43% of the shallow ground water from the Otter Tail outwash aquifer was above the U.S. Environmental Protection Agency's nitrate maximum contaminant level of 10 mg/L-N, reducing its potential uses. These high nitrate concentrations do not threaten the Otter Tail outwash aquifer's surface-water bodies with eutrophication however, because significant denitrification occurs beneath riparian wetlands before ground water discharges to surface waters.

  6. 77 FR 43557 - Safety Zone; Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-25

    ...-AA00 Safety Zone; Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and... during the Gilmerton Bridge Center Span Float- in and bridge construction of span placement. This action... Construction, INC will facilitate removal of the existing bascule spans from the Gilmerton Bridge, transport of...

  7. 77 FR 35900 - Safety Zone; Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    ...-AA00 Safety Zone; Gilmerton Bridge Center Span Float-in, Elizabeth River; Norfolk, Portsmouth, and... navigable waters during the Gilmerton Bridge Center Span Float- in and bridge construction of span placement... the existing bascule spans from the Gilmerton Bridge, transport the new center span from the Eastern...

  8. 75 FR 38718 - Safety Zone; Sault Sainte Marie 4th of July Fireworks, St. Mary's River, Sault Sainte Marie, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ...-AA00 Safety Zone; Sault Sainte Marie 4th of July Fireworks, St. Mary's River, Sault Sainte Marie, MI... restrict vessels from a portion of the St. Mary's River during the Sault Sainte Marie 4th of July Fireworks... the setup and launching of fireworks in conjunction with the Sault Sainte Marie 4th of July Fireworks...

  9. Spatial distribution and source apportionment of water pollution in different administrative zones of Wen-Rui-Tang (WRT) river watershed, China.

    PubMed

    Yang, Liping; Mei, Kun; Liu, Xingmei; Wu, Laosheng; Zhang, Minghua; Xu, Jianming; Wang, Fan

    2013-08-01

    Water quality degradation in river systems has caused great concerns all over the world. Identifying the spatial distribution and sources of water pollutants is the very first step for efficient water quality management. A set of water samples collected bimonthly at 12 monitoring sites in 2009 and 2010 were analyzed to determine the spatial distribution of critical parameters and to apportion the sources of pollutants in Wen-Rui-Tang (WRT) river watershed, near the East China Sea. The 12 monitoring sites were divided into three administrative zones of urban, suburban, and rural zones considering differences in land use and population density. Multivariate statistical methods [one-way analysis of variance, principal component analysis (PCA), and absolute principal component score-multiple linear regression (APCS-MLR) methods] were used to investigate the spatial distribution of water quality and to apportion the pollution sources. Results showed that most water quality parameters had no significant difference between the urban and suburban zones, whereas these two zones showed worse water quality than the rural zone. Based on PCA and APCS-MLR analysis, urban domestic sewage and commercial/service pollution, suburban domestic sewage along with fluorine point source pollution, and agricultural nonpoint source pollution with rural domestic sewage pollution were identified to the main pollution sources in urban, suburban, and rural zones, respectively. Understanding the water pollution characteristics of different administrative zones could put insights into effective water management policy-making especially in the area across various administrative zones.

  10. Pesticides in soil and sediment of a dyke-protected area of the Red River Delta, Vietnam

    NASA Astrophysics Data System (ADS)

    Braun, Gianna; Bläsing, Melanie; Kruse, Jens; Amelung, Wulf; Renaud, Fabrice; Sebesvari, Zita

    2017-04-01

    Coastal regions are densely populated but at the same time represent important agricultural areas for food production of the growing world population. To sustain high agricultural yields, in monocultures such as permanent rice systems, pesticides are used in high quantity and frequency. While earlier studies monitored the fate of pesticides in paddy rice systems, the overall fate of these compounds is altered nowadays due to the construction of dykes, which are needed in many delta regions to protect them from high tides, storm surges and salt water intrusion such as in the Red River Delta. The dyke system regulates the discharge and water exchange inside the diked area including irrigation channels for the paddy rice production. Local authorities observed increasing pollution towards the sea (highest pollution close to the dykes) and hypothesized that the dyke system would prevent water exchange and thus lead to an accumulation of pollutants within the diked area. Hence, the purpose of this study was to investigate the effect of dykes on pesticide pollution patterns in coastal delta regions of the Red River Delta. The study was conducted in the district Giao Thuy of the Red River Delta, Vietnam. This area is surrounded by a sea and river dyke; both have several inlet and outlet gates to control the water level in the irrigation channels. We determined the pesticide pollution pattern in a diked agricultural area, as well as along salinity gradients in and outside the diked areas. Samples were taken from rice fields and sediments from irrigation channels inside the diked area as well from saline aquaculture fields located outside the dyke. Pesticide analysis was conducted by accelerated solvent extraction (ASE), followed up by the clean-up process described by Laabs et al. (2007) and analyses using gas chromatography coupled with a mass selective detector (MSD). Preliminary results suggest that out of the 26 analysed compounds chlorpyrifos, propiconazole and

  11. Three decadal inputs of total organic carbon from four major coastal river basins to the summer hypoxic zone of the Northern Gulf of Mexico.

    PubMed

    He, Songjie; Xu, Y Jun

    2015-01-15

    This study investigated long-term (1980-2009) yields and variability of total organic carbon (TOC) from four major coastal rivers in Louisiana entering the Northern Gulf of Mexico where a large-area summer hypoxic zone has been occurring since the middle 1980s. Two of these rivers drain agriculture-intensive (>40%) watersheds, while the other two rivers drain forest-pasture dominated (>50%) watersheds. The study found that these rivers discharged a total of 13.0×10(4)t TOC annually, fluctuating from 5.9×10(4) to 22.8×10(4)t. Seasonally, the rivers showed high TOC yield during the winter and early spring months, corresponding to the seasonal trend of river discharge. While river hydrology controlled TOC yields, land use has played an important role in fluxes, seasonal variations, and characteristics of TOC. The findings fill in a critical information gap of quantity and quality of organic carbon transport from coastal watersheds to one of the world's largest summer hypoxic zones. Copyright © 2014 Elsevier Ltd. All rights reserved.

  12. 75 FR 63086 - Great Mississippi Balloon Race and Fireworks Safety Zone; Lower Mississippi River, Mile Marker...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-14

    ... flying hot air balloons transiting across the Lower Mississippi River. Entry into this zone is prohibited... mariners from the safety hazards associated with a fireworks display and low flying hot air balloons... mariners from the safety hazards associated with a fireworks display and low flying hot air balloons...

  13. 75 FR 52465 - Safety Zones; Swim Events Within the Sector New York Captain of the Port Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-26

    ...-AA00 Safety Zones; Swim Events Within the Sector New York Captain of the Port Zone AGENCY: Coast Guard... zones for swim events occurring on waters of the Hudson River, East River and Long Island Sound. These... with the swim events. Persons and vessels are prohibited from entering into, transiting through, or...

  14. 2.9, 2.36, and 1.96 Ga zircons in orthogneiss south of the Red River shear zone in Viet Nam: evidence from SHRIMP U-Pb dating and tectonothermal implications

    NASA Astrophysics Data System (ADS)

    Nam, Tran Ngoc; Toriumi, Mitsuhiro; Sano, Yuji; Terada, Kentaro; Thang, Ta Trong

    2003-05-01

    Orthogneissic rocks coexisting with migmatites and containing small amphibolite lenses are exposed in the center of the metamorphic belt which runs parallel to the Day Nui Con Voi-Red River shear zone in northern Viet Nam. The orthogneiss complex has given some radiogenic dates of Early Proterozoic and Late Archean, which are the oldest ages ever registered for the Southeast Asian continent. Zircon grains separated from three samples of the orthogneiss complex have been dated to establish the protolith age and the timing of high-grade tectonothermal events in the complex. Sixty-five SHRIMP U-Th-Pb analyses of these zircons define three age groups of 2.84-2.91, 2.36, and 1.96 Ga. The age groups correspond to three periods of zircon generation. The oldest ˜2.9 Ga cores indicate a minimum age for the protolith of the orthogneiss complex. Two younger generations (including ˜2.36 Ga outer-cores and ˜1.96 Ga rims) probably grew during later high-grade tectono-metamorphic events, which were previously suggested by K-Ar and 40Ar/ 39Ar cooling ages of ˜2.0 Ga for synkinematic hornblendes. An early thermal history of the orthogneiss complex has been constrained, including a primary magma-crystallization stage starting at ˜2.9 Ga, followed by two Early Proterozoic (˜2.36 and ˜1.96 Ga) high-grade tectonothermal events. The ca. 2.9 Ga protolith age of the orthogneiss complex documented in this study provides new convincing evidence for the presence of Archean rocks in Indochina, and clearly indicates that the crustal evolution of northern Viet Nam started as early as Late Archean time.

  15. 78 FR 57323 - York River and the Naval Weapons Station Yorktown-Cheatham Annex, Yorktown, Virginia; Danger Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-18

    ... the Naval Weapons Station Yorktown-Cheatham Annex, Yorktown, Virginia; Danger Zone AGENCY: U.S. Army... follows: Sec. 334.285 York River and the Naval Weapons Station Yorktown- Cheatham Annex, Yorktown...) Enforcement. The regulations in this section shall be enforced by the Commander, Naval Weapons Station...

  16. 78 FR 36660 - Safety Zone; Mississippi River Mile 95.5-Mile 96.5; New Orleans, LA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-19

    ...-AA00 Safety Zone; Mississippi River Mile 95.5-Mile 96.5; New Orleans, LA AGENCY: Coast Guard, DHS... of the Port New Orleans or a designated representative. DATES: This rule is effective from 9:45 p.m... email Lieutenant Commander (LCDR) Brandon Sullivan, Sector New Orleans, U.S. Coast Guard; telephone (504...

  17. 75 FR 44720 - Safety Zone; Live-Fire Gun Exercise, M/V Del Monte, James River, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-29

    ...-AA00 Safety Zone; Live-Fire Gun Exercise, M/V Del Monte, James River, VA AGENCY: Coast Guard, DHS... mariners from the hazards associated with live fire and explosive training events. DATES: This rule is... Hampton Roads was notified that the U.S. Navy will conduct a live fire and explosive training event...

  18. [Distribution characteristics of dissolved oxygen and mechanism of hypoxia in the upper estuarine zone of the Daliaohe River].

    PubMed

    Yang, Li-Na; Li, Zheng-Yan; Zhang, Xue-Qing

    2011-01-01

    Based on field surveys in the upper estuarine zone of the Daliaohe River in Spring and Summer of 2009, the spatial and temporal distributions of dissolved oxygen were analyzed and the mechanism of hypoxia were preliminarily discussed. The results indicated that DO concentrations were higher in the river mouth and lower in the upper reaches, higher in surface layers and lower in bottom concerning its spatial distribution. For its temporal distribution, DO concentrations were higher in daytime and lower at night, higher in Spring and lower in Summer. The DO concentrations in the upper estuarine zone of the Daliaohe River in Summer ranged between 1.36-4.77 mg/L with an average of 3.44 mg/L. The concentrations in the lower reaches were higher with an average of 3.94 mg/L. A large hypoxia area was recorded in Summer in the upper reaches of the estuary starting from about 45 km away from the river gate with an average DO concentration of 2.33 mg/L and a minimum of 1.36 mg/L. The correlation analysis showed that DO concentration was significantly correlated with nutrients and permanganate index. Excessive discharge of nutrients and organic pollutants were, therefore, main factors causing hypoxia, and water column stratification due to temperature rise in Summer in surface layers led to further reduction of DO in bottom layers of the water.

  19. Restoring ecosystem services to littoral zones of rivers in the urban core of Chongqing, China.

    PubMed

    Xian, Xu-Dong; Feng, Yi-Long; Willison, J H Martin; Ai, Li-Jiao; Wang, Ping; Wu, Zhi-Neng

    2015-08-01

    Two examples of the creation of naturalized areas in the littoral zone of the Three Gorges Reservoir in the urban core of Chongqing City, China, are described. The areas were created for the purpose of restoring ecological functions and services. Plants were selected based on surveys of natural wetland vegetation in the region, and experiments were conducted to discover the capacity of species of interest to survive the sometimes extreme hydrological regimes at the sites. Novel methods were developed to stabilize the plants against the rigors of extreme summer floods and constant swash, notably zigzag berms of rocks wrapped in iron mesh. The areas include native reeds, grasses, shrubs, and trees. Plant communities in the areas are zoned according to flooding stress, and their structure is less stable at lower elevations that are subjected to greater stress. The tall grass Saccharum spontaneum (widespread in Southern Asia) and the tree Pterocarya stenoptera (native to Southwest China) are notable for their utility at these sites in the center of a large city. Communities of tall reeds and grasses have become so dense and stable that they now provide the ecosystem services of capturing river sediments and resisting erosion of the river banks. It is recommended that extensive greening of the riparian zones in urban areas of the Three Gorges Reservoir be conducted for the purpose of providing ecosystem services, based in part on the experiences described here.

  20. Landsat View: Pearl River Delta, China

    NASA Image and Video Library

    2017-12-08

    In 1979, China established two special economic zones around the Pearl River Delta, north of Hong Kong. This image, taken by Landsat 3 on October 19, 1973, shows that the region was rural when the zone was established. Plant-covered land, which is red in this false-color image, dominates the scene. Square grids are agriculture. By January 10, 2003, when Landsat 7 took this image, the Pearl River Delta was a densely populated urban corridor with several large cities. The urban areas are gray in this image. The region is a major manufacturing center with an economy the size of Taiwan’s. As of 2010, the Pearl River Economic Zone had a population of 36 million people. ---- NASA and the U.S. Department of the Interior through the U.S. Geological Survey (USGS) jointly manage Landsat, and the USGS preserves a 40-year archive of Landsat images that is freely available over the Internet. The next Landsat satellite, now known as the Landsat Data Continuity Mission (LDCM) and later to be called Landsat 8, is scheduled for launch in 2013. In honor of Landsat’s 40th anniversary in July 2012, the USGS released the LandsatLook viewer – a quick, simple way to go forward and backward in time, pulling images of anywhere in the world out of the Landsat archive. 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

  1. Trace elements and organic contaminants in stream sediments from the Red River of the North Basin

    USGS Publications Warehouse

    Brigham, M.E.; Tornes, L.H.

    1996-01-01

    To assess the presence and distribution of a variety of hydro-phobic chemicals in streams in the Red River of the North Basin, bottom sediments were analyzed for trace elements, organochlorines, and polycyclic aromatic hydrocarbons (PAHs). Glaciolacustrine clays and carbonate minerals are common in fine sediments of the region, and can help explain the distribution of many elements. Aluminum (Al), an indicator of glaciolacustrine clay minerals, correlates strongly (r>0.75, p<0.05) with Cr, Co, Fe, La, Li, K, Sc, and Ti; and moderately (0.55River Basin, Eu, Nb, Ce, La, Nd, and Ni also have strong correlations with Al. Al correlates negatively with major elements associated with carbonate minerals (Ca, Mg, and inorganic carbon). No significant correlations with Al, Ca, or Mg were observed for As, Pb, Mn, Hg, Se, or Ag, which implies that these elements have different environmental sources or behaviors than glaciolacustrine clays or carbonate minerals. Reduction-oxidation processes may influence Mn distribution. Lead (Pb) and mercury (Hg) are known to be anthropogenically enriched in the environment--their distribution may indicate environmental enrichment in Red River of the North Basin streams. Organochlorines detected are limited to traces of DDT and its metabolites (mostlyp,p'-DDE). Fourteen PAHs, which are constituents of fossil fuels and of combustion byproducts, were detected in at least halfthe sediment samples; pyrene and fluoranthene were detected in about 90 percent of samples. The contaminants detected in this study were present at low levels, likely indicative of diffuse or remote sources; they occur widely in the environment. 

  2. 78 FR 39597 - Safety Zone; Hilton Fourth of July Fireworks, San Joaquin River, Venice Island, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ... Zone; Hilton Fourth of July Fireworks, San Joaquin River, Venice Island, CA AGENCY: Coast Guard, DHS... the Hilton Fourth of July Fireworks in the Captain of the Port, San Francisco area of responsibility...'' W (NAD83) for the Hilton Fourth of July Fireworks in 33 CFR 165.1191, Table 1, Item number 17. This...

  3. River stage influences on uranium transport in a hydrologically dynamic groundwater-surface water transition zone: U TRANSPORT IN A GROUNDWATER-SURFACE WATER TRANSITION ZONE

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

    Zachara, John M.; Chen, Xingyuan; Murray, Chris

    A tightly spaced well-field within a groundwater uranium (U) plume in the groundwater-surface water transition zone was monitored for a three year period for groundwater elevation and dissolved solutes. The plume discharges to the Columbia River, which displays a dramatic spring stage surge resulting from mountain snowmelt. Groundwater exhibits a low hydrologic gradient and chemical differences with river water. River water intrudes the site in spring. Specific aims were to assess the impacts of river intrusion on dissolved uranium (Uaq), specific conductance (SpC), and other solutes, and to discriminate between transport, geochemical, and source term heterogeneity effects. Time series trendsmore » for Uaq and SpC were complex and displayed large temporal well-to well variability as a result of water table elevation fluctuations, river water intrusion, and changes in groundwater flow directions. The wells were clustered into subsets exhibiting common temporal behaviors resulting from the intrusion dynamics of river water and the location of source terms. Concentration hot spots were observed in groundwater that varied in location with increasing water table elevation. Heuristic reactive transport modeling with PFLOTRAN demonstrated that mobilized U was transported between wells and source terms in complex trajectories, and was diluted as river water entered and exited the groundwater system. While uranium time-series concentration trends varied significantly from year to year as a result of climate-caused differences in the spring hydrograph, common and partly predictable response patterns were observed that were driven by water table elevation, and the extent and duration of the river water intrusion event.« less

  4. 78 FR 76596 - Proposed Levels of Service at Locks and Dams on the J Bennett Johnston Waterway (Red River)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-18

    ... DEPARTMENT OF DEFENSE Department of the Army; Corps of Engineers Proposed Levels of Service at Locks and Dams on the J Bennett Johnston Waterway (Red River) AGENCY: Department of the Army, U.S. Army... 1, 2014. Future level of service for each of the five locks and dams will be re-assessed following...

  5. Intracontinental subduction and hinged unroofing along the Salmon River Suture Zone, west central Idaho

    NASA Astrophysics Data System (ADS)

    Selverstone, Jane; Wernicke, Brian P.; Aliberti, Elaine A.

    1992-02-01

    The Salmon River suture zone in west central Idaho juxtaposes volcanic arc rocks of the Wallowa terrane directly against cratonic North America. Detailed metamorphic studies along a 10 km traverse perpendicular to the suture indicate that the arc and two crystalline fragments thrust upon it each record different pressure-temperature (P-T) histories. From lowest to highest structural level: the Wallowa terrane shows only subgreenschist metamorphism, the Rapid River plate (RRP) records unroofing and cooling from ˜8 kbar and 550°C to 6 kbar and 475°-500°C, and the Pollock Mountain plate (PMP) shows evidence for polymetamorphism and records burial and heating paths to final equilibration conditions of 9-11 kbar and 600°-625° C. Ar-Ar hornblende ages combined with the P-T data suggest that currently exposed levels of the RRP and PMP were juxtaposed against one another at 15-20 km depth at or prior to 118 Ma, indicating that 10-20 km of uplift, and hence also the onset of collision-related metamorphism, occurred before ˜118 Ma. Correlation of the metamorphic and age data with geometric constraints from the initial Sr 0.706 line and the dimensions of the RRP and PMP permit construction of large-scale retrodeformable sections of the west side of the suture from Late Jurassic through Late Cretaceous time. The abrupt nature of the Sr 0.706 line implies that the arc-continent boundary extends vertically through most of the crust, which requires sharp downwarping of the arc lithosphere in order to account for the PMP metamorphic data. Narrow zoned overgrowths on PMP garnets record this burial event and require initially rapid (≥3 km/m.y.) uplift rates in order to be preserved. We suggest that the onset of rapid uplift resulted from the separation of the negatively buoyant lithospheric root from the downwarped arc, allowing buoyant rise of fragments of thickened crust. Detachment of the root is suggested to change the environment of crustal shortening from one in which

  6. 50 CFR 226.205 - Critical habitat for Snake River sockeye salmon, Snake River fall chinook salmon, and Snake River...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... salmon, Snake River fall chinook salmon, and Snake River spring/summer chinook salmon. 226.205 Section... Snake River sockeye salmon, Snake River fall chinook salmon, and Snake River spring/summer chinook salmon. The following areas consisting of the water, waterway bottom, and adjacent riparian zone of...

  7. Flow characteristics control turnover of polar trace organic compounds in the hyporheic zone of an urban lowland river

    NASA Astrophysics Data System (ADS)

    Schaper, Jonas L.; Seher, Wiebke; Jaeger, Anna; Galloway, Jason; Nuetzmann, Gunnar; Putschew, Anke; Lewandowski, Joerg

    2017-04-01

    Hyporheic zones are hypothesized to be important sinks for polar trace organic compounds (TrOCs) in lotic systems, mitigating potential adverse effects of TrOCs on ecosystem functioning and drinking water production. Predicting the fate of TrOCs in the hyporheic zone, however, is difficult as the attenuation rate itself as well as the biogeochemical factors and hydrological conditions controlling attenuation rates are unknown. We used time series of temperature depth profiles as well as heat pulse sensing with a 1D advection dispersion transport model to calculate first order attenuation rates of several TrOCs from equilibrium depth profiles in an urban lowland river in Berlin, Germany. Ring enclosures were used to prohibit horizontal flow and to create distinct biogeochemical conditions within the hyporheic zone. Flow characteristics as well as biogeochemical conditions showed pronounced differences between depth profiles inside and outside of enclosures. TrOCs attenuation rates varied considerably among compounds reflecting their general susceptibility to biodegradation and sorption. While for some compounds such as benzotriazole and sulfamethoxazole redox conditions had an influence on attenuation rates, the fate of other compounds was not affected by biogeochemical parameters. Under loosing conditions, hyporheic zones of urban lowland rivers can thus be regarded as sinks for TrOCs. Their effectiveness is dependent on both, hyporheic exchange characteristics as well as biogeochemical parameters.

  8. UV filters, ethylhexyl methoxycinnamate, octocrylene and ethylhexyl dimethyl PABA from untreated wastewater in sediment from eastern Mediterranean river transition and coastal zones.

    PubMed

    Amine, Helmieh; Gomez, Elena; Halwani, Jalal; Casellas, Claude; Fenet, Hélène

    2012-11-01

    UVF may occur in the aquatic environment through two principal sources: direct inputs from recreational activities and indirect wastewater- and river-borne inputs. The aim of this study was to obtain a first overview of levels of three UVF (EHMC, OC and OD-PABA) in coastal areas subjected to river inputs, untreated wastewater discharges and dumpsite leachates. We selected three eastern Mediterranean rivers that have been impacted for decades by untreated wastewater release and collected sediment in the coastal zone during the hot and humid seasons. Western Mediterranean sites receiving treated wastewaters were analyzed for comparison. The results gave an overview of sediment contamination under these two contrasted situations representative of Mediterranean coastal areas without bathing activities. The analysis of the three UVF revealed the ubiquity and high point source contamination by EHMC and OC in transition and coastal zones, with levels as high as 128 ng g(-1)d.w. OD-PABA was also frequently detected, but at lower concentrations (river input that could be exacerbated by the direct contribution in coastal bathing zones. Copyright © 2012. Published by Elsevier Ltd.

  9. Occupancy patterns of mammals and lentic amphibians in the Elwha River riparian zone before dam removal

    USGS Publications Warehouse

    Jenkins, Kurt J.; Chelgren, Nathan; Sager-Fradkin, K.A.; Happe, P.J.; Adams, Michael J.

    2015-01-01

    The downstream transport of sediments and organics and upstream migration of anadromous fishes are key ecological processes in unregulated riverine ecosystems of the North Pacific coast, but their influence on wildlife habitats and populations is poorly documented. Removal of two large hydroelectric dams in Washington’s Elwha Valley provides an unprecedented opportunity to study long-term responses of wildlife populations to dam removal and restoration of these key ecological processes. We compared pre-dam removal patterns in the relative abundance and occupancy of mesocarnivores, small mammals and lentic amphibians of the Elwha River riparian zone above, between and below the dams. Occupancy of riparian habitats by three mesocarnivore species diminished upriver but did not appear to be closely linked with the absence of salmon in the upper river. Although the importance of salmon in the lower river cannot be discounted, other gradients in food resources also likely contributed to observed distribution patterns of mesocarnivores. Abundance and occupancy patterns within congeneric pairs of new world mice (Peromyscus spp.) and shrews (Sorex spp.) indicated that closely related species were negatively associated with each other and responded to habitat gradients in the riparian zone. The availability of lentic habitats of amphibians was highly variable, and occupancy was low as a result of rapidly changing flows during the larval development period. We speculate that long-term changes in habitat conditions and salmon availability following dam removal will elicit long-term changes in distribution of mesocarnivores, small mammals and amphibians. Long-term monitoring will enhance understanding of the role of fish and restored ecosystem processes on wildlife communities along salmon-bearing rivers in the region.

  10. A dinoflagellate Cochlodinium geminatum bloom in the Zhujiang (Pearl) River estuary in autumn 2009

    NASA Astrophysics Data System (ADS)

    Ke, Zhixin; Huang, Liangmin; Tan, Yehui; Song, Xingyu

    2012-05-01

    A severe Cochlodinium geminatum red tide (>300 km2) was observed in the Zhujiang (Pearl) River estuary, South China Sea in autumn 2009. We evaluated the environmental conditions and phytoplankton community structure during the outbreak. The red tide water mass had significantly higher dissolved inorganic phosphate (DIP), ammonia, and temperature, but significantly lower nitrite, nitrate, dissolved inorganic nitrogen (DIN), and DIN/DIP relative to the non-red-tide zones. The phytoplankton assemblage was dominated by dinoflagellates and diatoms during the red tide. C. geminatum was the most abundant species, with a peak density of 4.13×107 cell/L, accounting for >65% of the total phytoplankton density. The DIN/DIP ratio was the most important predictor of species, accounting for 12.45% of the total variation in the phytoplankton community. Heavy phosphorus loading, low precipitation, and severe saline intrusion were likely responsible for the bloom of C. geminatum.

  11. Questa Baseline and Pre-Mining Ground-Water Quality Investigation. 24. Seismic Refraction Tomography for Volume Analysis of Saturated Alluvium in the Straight Creek Drainage and Its Confluence With Red River, Taos County, New Mexico

    USGS Publications Warehouse

    Powers, Michael H.; Burton, Bethany L.

    2007-01-01

    As part of a research effort directed by the New Mexico Environment Department to determine pre-mining water quality of the Red River at a molybdenum mining site in northern New Mexico, we used seismic refraction tomography to create subsurface compressional-wave velocity images along six lines that crossed the Straight Creek drainage and three that crossed the valley of Red River. Field work was performed in June 2002 (lines 1-4) and September 2003 (lines 5-9). We interpreted the images to determine depths to the water table and to the top of bedrock. Depths to water and bedrock in boreholes near the lines correlate well with our interpretations based on seismic data. In general, the images suggest that the alluvium in this area has a trapezoidal cross section. Using a U.S. Geological Survey digital elevation model grid of surface elevations of this region and the interpreted elevations to water table and bedrock obtained from the seismic data, we generated new models of the shape of the buried bedrock surface and the water table through surface interpolation and extrapolation. Then, using elevation differences between the two grids, we calculated volumes of dry and wet alluvium in the two drainages. The Red River alluvium is about 51 percent saturated, whereas the much smaller volume of alluvium in the tributary Straight Creek is only about 18 percent saturated. When combined with average ground-water velocity values, the information we present can be used to determine discharge of Straight Creek into Red River relative to the total discharge of Red River moving past Straight Creek. This information will contribute to more accurate models of ground-water flow, which are needed to determine the pre-mining water quality in the Red River.

  12. 33 CFR 165.T09-0166 - Safety Zone, Brandon Road Lock and Dam to Lake Michigan including Des Plaines River, Chicago...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone, Brandon Road Lock... Areas Ninth Coast Guard District § 165.T09-0166 Safety Zone, Brandon Road Lock and Dam to Lake Michigan.... waters of the Des Plaines River located between mile marker 286.0 (Brandon Road Lock and Dam) and mile...

  13. Seasonal variability of faecal indicator bacteria numbers and die-off rates in the Red River basin, North Viet Nam

    NASA Astrophysics Data System (ADS)

    Nguyen, Huong Thi Mai; Le, Quynh Thi Phuong; Garnier, J.; Janeau, J.-L.; Rochelle-Newall, E.

    2016-02-01

    The Red River is the second largest river in Viet Nam and constitutes the main water source for a large percentage of the population of North Viet Nam. Here we present the results of an annual survey of Escherichia coli (EC) and Total Coliforms (TC) in the Red River basin, North Viet Nam. The objective of this work was to obtain information on faecal indicator bacteria (FIB) numbers over an annual cycle and, secondly, to determine the die-off rates of these bacterial indicators. Monthly observations at 10 stations from July 2013-June 2014 showed that TC and EC reached as high as 39100 cfu (colony forming units) 100 ml-1 and 15300 colonies 100 ml-1, respectively. We observed a significant seasonal difference for TC (p < 0.05) with numbers being higher during the wet season. In contrast, no significant seasonal difference was found for EC. The FIB die-off rates ranged from 0.01 d-1 to a maximum of 1.13 d-1 for EC and from 0.17 d-1 to 1.33 d-1 for TC. Die-off rates were significantly higher for free bacteria than for total (free + particle attached) bacteria, suggesting that particle attachment provided a certain level of protection to FIB in this system.

  14. Seasonal variability of faecal indicator bacteria numbers and die-off rates in the Red River basin, North Viet Nam.

    PubMed

    Nguyen, Huong Thi Mai; Le, Quynh Thi Phuong; Garnier, J; Janeau, J-L; Rochelle-Newall, E

    2016-02-12

    The Red River is the second largest river in Viet Nam and constitutes the main water source for a large percentage of the population of North Viet Nam. Here we present the results of an annual survey of Escherichia coli (EC) and Total Coliforms (TC) in the Red River basin, North Viet Nam. The objective of this work was to obtain information on faecal indicator bacteria (FIB) numbers over an annual cycle and, secondly, to determine the die-off rates of these bacterial indicators. Monthly observations at 10 stations from July 2013-June 2014 showed that TC and EC reached as high as 39100 cfu (colony forming units) 100 ml(-1) and 15300 colonies 100 ml(-1), respectively. We observed a significant seasonal difference for TC (p < 0.05) with numbers being higher during the wet season. In contrast, no significant seasonal difference was found for EC. The FIB die-off rates ranged from 0.01 d(-1) to a maximum of 1.13 d(-1) for EC and from 0.17 d(-1) to 1.33 d(-1) for TC. Die-off rates were significantly higher for free bacteria than for total (free + particle attached) bacteria, suggesting that particle attachment provided a certain level of protection to FIB in this system.

  15. Regression equations for estimating concentrations of selected water-quality constituents for selected gaging stations in the Red River of the North Basin, North Dakota, Minnesota, and South Dakota

    USGS Publications Warehouse

    Williams-Sether, Tara

    2004-01-01

    The Dakota Water Resources Act, passed by the U.S. Congress on December 15, 2000, authorized the Secretary of the Interior to conduct a comprehensive study of future water-quantity and quality needs of the Red River of the North Basin in North Dakota and possible options to meet those water needs. Previous Red River of the North Basin studies conducted by the Bureau of Reclamation used streamflow and water-quality data bases developed by the U.S. Geological Survey that included data for 1931-84. As a result of the recent congressional authorization and results of previous studies by the Bureau of Reclamation, redevelopment of the streamflow and water-quality data bases with current data through 1999 are needed in order to evaluate and predict the water-quantity and quality effects within the Red River of the North Basin. This report provides updated statistical summaries of selected water-quality constituents and streamflow and the regression relations between them.  Available data for 1931-99 were used to develop regression equations between 5 selected water-quality constituents and streamflow for 38 gaging stations in the Red River of the North Basin. The water-quality constituents that were regressed against streamflow were hardness (as CaCO3), sodium, chloride, sulfate, and dissolved solids. Statistical summaries of the selected water-quality constituents and streamflow for the gaging stations used in the regression equations development and the applications and limitations of the regression equations are presented in this report.

  16. Imprint of Southern Red Sea Major Tectonic Zone In A New Bouguer Anomaly Map of Southern Yemen Margin

    NASA Astrophysics Data System (ADS)

    Blecha, V.

    A new Bouguer anomaly map of western part of southern Yemen margin has been compiled. Densities of rock samples from main geological units (Precambrian base- ment, Mesozoic sediments, Tertiary volcanites) have been measured and used for grav- ity modeling. Regional gravity map indicates decrease of thickness of continental crust from volcanites of the Yemen Trap Series towards the coast of the Gulf of Aden. Most remarkable feature in the map of residual anomalies is a positive anomaly over the Dhala graben. The Dhala graben is a prominent geological structure in the area of study trending parallel to the Red Sea axis. Gravity modeling on a profile across the Dhala graben presumes intrusive plutonic rocks beneath the graben. There are two other areas in the southwestern tip of Arabia, which have essentially the same struc- tural position as the Dhala graben: the Jabal Tirf volcanic rift zone in the southern Saudi Arabia and Jabal Hufash extensional zone in northern Yemen. All three areas extend along the line trending parallel to the Red Sea axis with length of about 500 km. The line coincides with the axis of Afar (Danakil) depression after Arabia is shifted and rotated back to Africa. These facts imply conclusion that the Oligocene - Early Miocene magmatic activity on the Jabal Tirf - Dhala lineament is related to the same original deep tectonic zone, forming present-day Afar depression and still active.

  17. Riparian buffer zones on selected rivers in Lower Silesia - an important conservation practice and the management strategy in urban planning

    NASA Astrophysics Data System (ADS)

    Adamska, Maryna

    2013-09-01

    Buffer zones are narrow strips of land lying along the surface water, covered with appropriately selected vegetation. They separate aquatic ecosystems from the direct impact of agricultural land and reduce the movement of nutrients in the environment. In 2008 the European Commission established requirements for the implementation of buffer strips along water courses. Poland committed to the enforcement of these requirements until 1 January 2012. This was one of the reasons of this study. The subject of the analysis included the following rivers in Lower Silesia: Smortawa, Krynka, Czarna Woda and the selected transects of Ślęza and Nysa Łużycka. Detailed studies were designed to estimate the buffer zones occurring on these watercourses and assess these zones’ structure. This will be used to develop clear criteria for the selection of the width of these zones based on land use land management. It can be used in the implementation of executive acts at different levels of space management. Field research consisted of inventory the extent of riparian buffer strips on selected water courses and photographic documentation. Species composition of the vegetation forming a buffer zone was identified by using Braun-Blanquet method. There was lack of continuity of the riparian buffer zones on investigated rivers. Buffer zones should have carefully formulated definition and width because they are element of the significant ecological value, they perform important environmental protective functions and they are also the subject of Community law.

  18. 76 FR 1065 - Security Zone; 23rd Annual North American International Auto Show, Detroit River, Detroit, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-07

    ...-AA87 Security Zone; 23rd Annual North American International Auto Show, Detroit River, Detroit, MI... officials at the 23rd Annual North American International Auto Show (NAIAS) being held at Cobo Hall in... 23rd Annual North American International Auto Show (NAIAS) being held at Cobo Hall in downtown Detroit...

  19. 77 FR 56115 - Safety Zone for Fireworks Display, Potomac River, National Harbor Access Channel; Oxon Hill, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-12

    ..., MD AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a... safety of life on navigable waters during a fireworks display launched from a floating platform located... zone is intended to protect the maritime public in a portion of the Potomac River. DATES: This rule is...

  20. River stage influences on uranium transport in a hydrologically dynamic groundwater-surface water transition zone

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

    Zachara, John M.; Chen, Xingyuan; Murray, Chris

    In this study, a well-field within a uranium (U) plume in the groundwater-surface water transition zone was monitored for a 3 year period for water table elevation and dissolved solutes. The plume discharges to the Columbia River, which displays a dramatic spring stage surge resulting from snowmelt. Groundwater exhibits a low hydrologic gradient and chemical differences with river water. River water intrudes the site in spring. Specific aims were to assess the impacts of river intrusion on dissolved uranium (U aq), specific conductance (SpC), and other solutes, and to discriminate between transport, geochemical, and source term heterogeneity effects. Time seriesmore » trends for U aq and SpC were complex and displayed large temporal and well-to-well variability as a result of water table elevation fluctuations, river water intrusion, and changes in groundwater flow directions. The wells were clustered into subsets exhibiting common behaviors resulting from the intrusion dynamics of river water and the location of source terms. Hot-spots in U aq varied in location with increasing water table elevation through the combined effects of advection and source term location. Heuristic reactive transport modeling with PFLOTRAN demonstrated that mobilized U aq was transported between wells and source terms in complex trajectories, and was diluted as river water entered and exited the groundwater system. While U aq time-series concentration trends varied significantly from year-to-year as a result of climate-caused differences in the spring hydrograph, common and partly predictable response patterns were observed that were driven by water table elevation, and the extent and duration of river water intrusion.« less