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Sample records for chandeleur islands louisiana

  1. Seafloor erosional processes offshore of the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    Twichell, David C.; Brock, John C.

    2011-01-01

    The Chandeleur Islands are a chain of barrier islands that lies along the eastern side of the modern Mississippi River Delta plain. The island chain is located near the seaward edge of the relict St. Bernard Delta, the part of the Mississippi Delta that formed between approximately 4,000 and 2,000 years before present and was later abandoned as sedimentation shifted southward. After abandonment of the St. Bernard Delta, deposits were reworked, and the sandy component was shaped into the Chandeleur Islands. With continued subsidence, the islands became separated from their original delta headland sources and presently are isolated from the mainland by the shallow Chandeleur Sound. Newly acquired geophysical data and vibracores provide an opportunity to better understand the processes that are shaping seafloor morphology (i.e., shape, geometry, and structure of the seafloor) on the inner shelf adjacent to the Chandeleur Islands. The inner shelf offshore of the Chandeleur Islands was mapped in 2006 and 2007 using swath bathymetry, sidescan sonar, and high-resolution seismic-reflection techniques. The detailed results of this study were published in December 2009 (Twichell and others, 2009) as part of a special issue of Geo-Marine Letters that documents early results from the Northern Gulf of Mexico (NGOM) Ecosystem Change and Hazard Susceptibility Project. This study addresses questions and concerns related to limited sand resources along the Louisiana shelf and their implications to long-term relative sea-level rise and storm impacts.

  2. Coastal single-beam bathymetry data collected in 2015 from the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    Stalk, Chelsea A.; DeWitt, Nancy T.; Bernier, Julie C.; Kindinger, Jack G.; Flocks, James G.; Miselis, Jennifer L.; Locker, Stanley D.; Kelso, Kyle W.; Tuten, Thomas M.

    2017-02-23

    As part of the Louisiana Coastal Protection and Restoration Authority (CPRA) Barrier Island Comprehensive Monitoring Program, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a single-beam bathymetry survey around the Chandeleur Islands, Louisiana, in June 2015. The goal of the program is to provide long-term data on Louisiana’s barrier islands and use this data to plan, design, evaluate, and maintain current and future barrier island restoration projects. The data described in this report, along with (1) USGS bathymetry data collected in 2013 as a part of the Barrier Island Evolution Research project covering the northern Chandeleur Islands, and (2) data collected in 2014 in collaboration with the Louisiana CPRA Barrier Island Comprehensive Monitoring Program around Breton Island, will be used to assess bathymetric change since 2006‒2007 as well as serve as a bathymetric control in supporting modeling of future changes in response to restoration and storm impacts. The survey area encompasses approximately 435 square kilometers of nearshore and back-barrier environments around Hewes Point, the Chandeleur Islands, and Curlew and Grand Gosier Shoals. This Data Series serves as an archive of processed single-beam bathymetry data, collected in the nearshore of the Chandeleur Islands, Louisiana, from June 17‒24, 2015, during USGS Field Activity Number 2015-317-FA. Geographic information system data products include a 200-meter-cell-size interpolated bathymetry grid, trackline maps, and xyz point data files. Additional files include error analysis maps, Field Activity Collection System logs, and formal Federal Geographic Data Committee metadata.

  3. Hurricane impact and recovery shoreline change analysis of the Chandeleur Islands, Louisiana, USA: 1855 to 2005

    USGS Publications Warehouse

    Fearnley, Sarah M.; Miner, Michael; Brock, John C.

    2011-01-01

    Results from historical (1855-2005) shoreline change analysis of the Chandeleur Islands, Louisiana, demonstrate that tropical cyclone frequency dominates the long-term evolution of this barrier-island arc. The detailed results of this study were published in December 2009 as part of a special issue of Geo-Marine Letters that documents early results from the Northern Gulf of Mexico (NGOM) Ecosystem Change and Hazard Susceptibility Project.

  4. Landscape Evolution of the Oil Spill Mitigation Sand Berm in the Chandeleur Islands, Louisiana

    DTIC Science & Technology

    2016-09-01

    ER D C TR -1 6- 15 Dredging Operations Technical Support and Engineering With Nature Landscape Evolution of the Oil Spill Mitigation...September 2016 Landscape Evolution of the Oil Spill Mitigation Sand Berm in the Chandeleur Islands, Louisiana Glenn M. Suir Environmental Laboratory...susceptible to additional pressures, including anthropogenic activities. Therefore, the purpose of this study is to quantify the evolution of the oil

  5. Water-level and wave measurements in the Chandeleur Islands, Louisiana, 2012 and 2013

    USGS Publications Warehouse

    Dickhudt, Patrick J.; Sherwood, Christopher R.; DeWitt, Nancy T.

    2015-01-01

    This report documents measurements of atmospheric pressure, water levels, and waves made by the U.S. Geological Survey in the Chandeleur Islands, Louisiana, during 2012 and 2013 as part of the Barrier Island Evolution Research project. Simple, inexpensive pressure sensors mounted in shallow wells were buried in the beach and left for one hurricane season and one winter-storm season. Gauges with rapid-sampling pressure sensors that provided nondirectional wave data and water-level data were mounted on rugged mounts on the Chandeleur Sound side and at the base of a tower at the northern end of the island chain. Additionally, an atmospheric pressure sensor was mounted on the tower to provide a local atmospheric pressure measurement for correcting the submerged pressure records.

  6. Sediment data collected in 2012 from the northern Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    Bernier, Julie C.; Kelso, Kyle W.; Buster, Noreen A.; Flocks, James G.; Miselis, Jennifer L.; DeWitt, Nancy T.

    2014-01-01

    As part of the Barrier Island Evolution Research project, scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center collected sediment samples from the northern Chandeleur Islands in March and September 2012. The overall objective of this project, which integrates geophysical (bathymetric, seismic, and topographic) and sedimentologic data, is to better understand the depositional and erosional processes that drive the morphologic evolution of barrier islands over annual to interannual timescales (1 to 5 years). Between June 2010 and April 2011, in response to the Deepwater Horizon oil spill, the State of Louisiana constructed a sand berm extending more than 14 kilometers along the northern Chandeleur Islands platform. The construction of the berm provided a unique opportunity to investigate how this new sediment source will interact with and affect the morphologic evolution of the barrier-island system. Data collected from this study will be used to describe differences in the physical characteristics and spatial distribution of sediments both along the axis of the berm and also along transects across the berm and onto the adjacent barrier island. Comparison of these data with data from subsequent sampling efforts will provide information about sediment interactions and movement between the berm and the natural island platform, improving our understanding of short-term morphologic change and processes in this barrier-island system. This data series serves as an archive of sediment data collected in March and September 2012 from the Chandeleur Islands sand berm and adjacent barrier-island environments. Data products include descriptive core logs, core photographs and x-radiographs, results of sediment grain-size analyses, sample location maps, and Geographic Information System data files with accompanying formal Federal Geographic Data Committee metadata.

  7. Coastal interferometric swath bathymetry data collected in 2015 from the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    Fredericks, Jake J.; Buster, Noreen A.; DeWitt, Nancy T.; Kelso, Kyle W.; Miselis, Jennifer L.

    2016-01-01

    The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC), collected swath bathymetry data at the Chandeleur Islands, Louisiana in September 2015. This USGS Data Release includes the resulting processed elevation point data (xyz) and an interpolated digital elevation model (DEM). For further information regarding data collection and/or processing please see the metadata associated with this data release and previous data series published by the USGS SPCMSC http://dx.doi.org/10.3133/ds847 and http://dx.doi.org/10.3133/ds848.

  8. EAARL Coastal Topography-Chandeleur Islands, Louisiana, 2010: Bare Earth

    USGS Publications Warehouse

    Nayegandhi, Amar; Bonisteel-Cormier, Jamie M.; Brock, John C.; Sallenger, A.H.; Wright, C. Wayne; Nagle, David B.; Vivekanandan, Saisudha; Yates, Xan; Klipp, Emily S.

    2010-01-01

    These remotely sensed, geographically referenced elevation measurements of lidar-derived bare-earth (BE) and submerged topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate datasets of a portion of the Chandeleur Islands, acquired March 3, 2010. The datasets are made available for use as a management tool to research scientists and natural-resource managers. An innovative airborne lidar instrument originally developed at the NASA Wallops Flight Facility, and known as the Experimental Advanced Airborne Research Lidar (EAARL), was used during data acquisition. The EAARL system is a raster-scanning, waveform-resolving, green-wavelength (532-nanometer) lidar designed to map near-shore bathymetry, topography, and vegetation structure simultaneously. The EAARL sensor suite includes the raster-scanning, water-penetrating full-waveform adaptive lidar, a down-looking red-green-blue (RGB) digital camera, a high-resolution multispectral color-infrared (CIR) camera, two precision dual-frequency kinematic carrier-phase GPS receivers, and an integrated miniature digital inertial measurement unit, which provide for sub-meter georeferencing of each laser sample. The nominal EAARL platform is a twin-engine Cessna 310 aircraft, but the instrument may be deployed on a range of light aircraft. A single pilot, a lidar operator, and a data analyst constitute the crew for most survey operations. This sensor has the potential to make significant contributions in measuring sub-aerial and submarine coastal topography within cross-environmental surveys. Elevation measurements were collected over the survey area using the EAARL system, and the resulting data were then processed using the Airborne Lidar Processing System (ALPS), a custom

  9. Topographic lidar survey of the Chandeleur Islands, Louisiana, February 6, 2012

    USGS Publications Warehouse

    Guy, Kristy K.; Plant, Nathaniel G.; Bonisteel-Cormier, Jamie M.

    2014-01-01

    This Data Series Report contains lidar elevation data collected February 6, 2012, for Chandeleur Islands, Louisiana. Point cloud data in lidar data exchange format (LAS) and bare earth digital elevation models (DEMs) in ERDAS Imagine raster format (IMG) are available as downloadable files. The point cloud data—data points described in three dimensions—were processed to extract bare earth data; therefore, the point cloud data are organized into the following classes: 1– and 17–unclassified, 2–ground, 9–water, and 10–breakline proximity. Digital Aerial Solutions, LLC, (DAS) was contracted by the U.S. Geological Survey (USGS) to collect and process these data. The lidar data were acquired at a horizontal spacing (or nominal pulse spacing) of 0.5 meters (m) or less. The USGS conducted two ground surveys in small areas on the Chandeleur Islands on February 5, 2012. DAS calculated a root mean square error (RMSEz) of 0.034 m by comparing the USGS ground survey point data to triangulated irregular network (TIN) models built from the lidar elevation data. This lidar survey was conducted to document the topography and topographic change of the Chandeleur Islands. The survey supports detailed studies of Louisiana, Mississippi and Alabama barrier islands that resolve annual and episodic changes in beaches, berms and dunes associated with processes driven by storms, sea-level rise, and even human restoration activities. These lidar data are available to Federal, State and local governments, emergency-response officials, resource managers, and the general public.

  10. The potential for sea-level-rise-induced barrier island loss: Insights from the Chandeleur Islands, Louisiana, USA

    USGS Publications Warehouse

    Moore, Laura J.; Patsch, Kiki; List, Jeffrey H.; Williams, S. Jeffress

    2014-01-01

    As sea level rises and hurricanes become more intense, barrier islands around the world become increasingly vulnerable to conversion from self-sustaining migrating landforms to submerging or subaqueous sand bodies. To explore the mechanism by which such state changes occur and to assess the factors leading to island disintegration, we develop a suite of numerical simulations for the Chandeleur Islands in Louisiana, U.S.A., which appear to be on the verge of this transition. Our results suggest that the Chandeleurs are likely poised to change state, leading to their demise, within decades depending on future storm history. Contributing factors include high rates of relative sea level rise, limited sediment supply, muddy substrate, current island position relative to former Mississippi River distributary channels, and the effects of changes in island morphology on sediment transport pathways. Although deltaic barrier islands are most sensitive to disintegration because of their muddy substrate, the importance of relative sea level rise rate in determining the timing of threshold crossing suggests that the conceptual models for deltaic barrier island formation and disintegration may apply more broadly in the future.

  11. Coastal bathymetry data collected in 2013 from the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    DeWitt, Nancy T.; Miselis, Jennifer L.; Fredericks, Jake J.; Bernier, Julie C.; Reynolds, Billy J.; Kelso, Kyle W.; Thompson, David M.; Flocks, James G.; Wiese, Dana S.

    2017-01-12

    As part of the Barrier Island Evolution Research Project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys around the northern Chandeleur Islands, Louisiana, in July and August of 2013. The objective of the study is to better understand barrier-island geomorphic evolution, particularly storm-related depositional and erosional processes that shape the islands over annual to interannual timescales (1‒5 years). Collecting geophysical data will allow us to identify relationships between the geologic history of the island and its present day morphology and sediment distribution. This mapping effort was the third in a series of three planned surveys in this area. High resolution geophysical data collected in each of three consecutive years along this rapidly changing barrier island system will provide a unique time-series dataset that will significantly further the analyses and geomorphological interpretations of this and other coastal systems, improving our understanding of coastal response and evolution over short time scales (1‒5 years).This data series includes the geophysical data that were collected during two cruises (USGS Field Activity Numbers (FAN) 13BIM02, 13BIM03, and 13BIM04, in July 2013; and FANs 13BIM07 and 13BIM08 in August 2013) aboard the R/V Sallenger, the R/V Jabba Jaw, and the R/V Shark along the northern portion of the Chandeleur Islands, Breton National Wildlife Refuge, Louisiana. Primary data were acquired with the following equipment: (1) a Systems Engineering and Assessment, Ltd., SWATHplus interferometric sonar (468 kilohertz [kHz]), (2) an EdgeTech 424 (4‒24 kHz) chirp sub-bottom profiling system, and (3) two Odom Hydrographic Systems, Incorporated, Echotrach CV100 single beam echosounders.This data series report serves as an archive of processed interferometric swath and single-beam bathymetry data. Geographic information system data products

  12. Coastal bathymetry and backscatter data collected in 2012 from the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    DeWitt, Nancy T.; Bernier, Julie C.; Pfeiffer, William R.; Miselis, Jennifer L.; Reynolds, B.J.; Wiese, Dana S.; Kelso, Kyle W.

    2014-01-01

    As part of the Barrier Island Evolution Research Project, scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys off the northern Chandeleur Islands, Louisiana, in July and August of 2012. The objective of the study is to better understand barrier island geomorphic evolution, particularly storm-related depositional and erosional processes that shape the islands over annual to interannual timescales (1-5 years). Collecting geophysical data will allow us to identify relationships between the geologic history of the island and its present day morphology and sediment distribution. This mapping effort was the second in a series of three planned surveys in this area. High resolution geophysical data collected in each of 3 consecutive years along this rapidly changing barrier island system will provide a unique time-series dataset that will significantly further the analyses and geomorphological interpretations of this and other coastal systems, improving our understanding of coastal response and evolution over short time scales (1-5 years). This Data Series report includes the geophysical data that were collected during two cruises (USGS Field Activity Numbers 12BIM03 and 12BIM04) aboard the RV Survey Cat and the RV Twin Vee along the northern portion of the Chandeleur Islands, Breton National Wildlife Refuge, Louisiana. Data were acquired with the following equipment: a Systems Engineering and Assessment, Ltd., SWATHplus interferometric sonar (468 kilohertz (kHz)), an EdgeTech 424 (4-24 kHz) chirp sub-bottom profiling system, and a Knudsen 320BP (210 kHz) echosounder. This report serves as an archive of processed interferometric swath and single-beam bathymetry data. Geographic information system data products include an interpolated digital elevation model, an acoustic backscatter mosaic, trackline maps, and point data files. Additional files include error analysis maps, Field Activity

  13. Morphological controls on barrier-island response and recovery following natural and anthropogenic perturbations, northern Chandeleur Islands, Louisiana

    NASA Astrophysics Data System (ADS)

    Bernier, J.; Miselis, J. L.

    2016-02-01

    Prevailing oceanographic climate, sediment supply, the magnitude and frequency of storm events, and anthropogenic modifications interact to drive the geomorphic evolution of barrier systems at varying spatial and temporal scales. The Chandeleur Islands east of the Louisiana mainland receive little external sediment input, and alongshore currents generally transport sediment away from the nearshore and littoral system to flanking depositional centers. We analyzed Landsat satellite imagery and lidar datasets from the northern Chandeleur Islands to quantify morphological changes that resulted from storm impacts and human-induced sediment input at intra-annual to decadal time scales. Since 2001, the study area was impacted by multiple tropical systems, including Hurricanes Lili (2002), Katrina (2005), and Isaac (2012). Additionally, between June 2010 and April 2011, in response to the Deepwater Horizon oil spill, the State of Louisiana constructed a 2-m high sand berm extending more than 12 km along the northern Chandeleur Islands platform. Berm emplacement provided a unique opportunity to study how anthropogenic sediment input affects the morphologic response of a naturally evolving barrier system. Land-cover and elevation metrics were utilized to test the hypotheses that (1) island geomorphology, in particular marsh extent, significantly influenced both "instantaneous" and longer term morphologic change and recovery following storm events and (2) redistribution of berm sediment depended on both antecedent morphologic controls as well as spatial variability in berm placement relative to the island platform. Despite the rapid post-construction degradation of the berm, imagery and elevation data suggest that some berm sediment remained in the system. Where the barrier-island was backed by healthy marsh platform, shoreward translation of the berm crest and increased elevations landward of the berm provide evidence of berm sand redistribution onto the emergent island. At

  14. Sediment data collected in 2013 from the northern Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    Buster, Noreen A.; Kelso, Kyle W.; Bernier, Julie C.; Flocks, James G.; Miselis, Jennifer L.; DeWitt, Nancy T.

    2014-01-01

    This data series serves as an archive of sediment data collected in July 2013 from the Chandeleur Islands sand berm and adjacent barrier-island environments. Data products include descriptive core logs, core photographs and x-radiographs, results of sediment grain-size analyses, sample location maps, and Geographic Information System data files with accompanying formal Federal Geographic Data Committee metadata.

  15. EAARL Coastal Topography—Chandeleur Islands, Louisiana, 4–5 September 2010: Seamless (bare earth and submerged)

    USGS Publications Warehouse

    Fredericks, Alexandra M.; Plant, Nathaniel G.

    2016-01-01

    This XYZ dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for the Chandeleur Islands in Louisiana. Elevation measurements were acquired by the first-generation Experimental Advanced Airborne Research Lidar (EAARL) on September 4 and 5, 2010. The data were collected as part of a series of related lidar acquisitions using the EAARL system (Nayegandhi et al. 2010).The authors acknowledge Jamie Cormier, Richard Mitchell, Amar Nayegandhi, Virgil Rabine, Rudy Troche, and Wayne Wright for lidar acquisition and processing; as well as Julie Bernier, Nancy DeWitt, Jim Flocks, Mark Hansen, Kyle Kelso, and BJ Reynolds for ground-truth surveys and processing.

  16. EAARL Coastal Topography—Chandeleur Islands, Louisiana, 12-13 February 2011: Seamless (bare earth and submerged)

    USGS Publications Warehouse

    Fredericks, Alexandra M.; Plant, Nathaniel G.

    2016-01-01

    This XYZ dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for the Chandeleur Islands in Louisiana. Elevation measurements were acquired by the first-generation Experimental Advanced Airborne Research Lidar (EAARL) on February 12 and 13, 2011. The data were collected as part of a series of related lidar acquisitions using the EAARL system (Nayegandhi et al. 2010).The authors acknowledge Jamie Cormier, Richard Mitchell, Amar Nayegandhi, Virgil Rabine, Rudy Troche, and Wayne Wright for lidar acquisition and processing; as well as Kyle Kelso, Will Pfeiffer, and BJ Reynolds for ground-truth surveys and processing.

  17. Accuracy of EAARL lidar ground elevations using a bare-earth algorithm in marsh and beach grasses on the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    Doran, Kara S.; Sallenger, Asbury H.; Reynolds, Billy J.; Wright, C. Wayne

    2010-01-01

    The NASA Experimental Advanced Airborne Lidar (EAARL) is an airborne lidar (light detection and ranging) instrument designed to map coastal topography and bathymetry. The EAARL system has the capability to capture each laser-pulse return over a large signal range and can digitize the full waveform of the backscattered energy. Because of this ability to capture the full waveform, the EAARL system can map features such as coral reefs, beaches, coastal vegetation, and trees, where extreme variations in the laser backscatter are caused by different physical and optical characteristics. Post-processing of the EAARL data is accomplished using the Airborne Lidar Processing System (ALPS) (Nayegandhi and others, 2009). In ALPS, the waveform of the lidar is analyzed and split into first and last returns. The 'first returns' are indicative of vegetation-canopy height, or bare ground in the absence of vegetation, whereas 'last returns' typically represent 'bare-earth' elevations under vegetation. To test the accuracy of the first-return and bare-earth EAARL data, topographic and vegetation height surveys were conducted in the Chandeleur Islands, concurrent with an EAARL lidar survey and an aerial oblique-photographic survey from September 20 to 27, 2006. The Chandeleur Islands are a north-south-oriented chain of low-lying islands located approximately 100 kilometers east of the city of New Orleans, Louisiana. The islands are narrow north-south strips of land with marsh on the landward (west sides) and sandy beaches on their gulfward (east sides). Prior to Hurricane Katrina, which made landfall at Buras, Louisiana, as a Category 3 storm on August 29, 2005, prominent, 3- to 4-meter-high sand dunes were present in the northern Chandeleurs. The storm removed them, leaving post-storm island elevations of generally less than 2 meters above 0.0 NAVD88. This report is part of a study of the impact of Hurricane Katrina on the Chandeleur Islands using pre-storm and post-storm lidar

  18. The geomorphology of the Chandeleur Island Wetlands

    SciTech Connect

    Debusschere, K.; Penland, S.; Westphal, K. ); Handley, L. ); Michot, T. ); Reed, D.; Seal, R.

    1990-09-01

    The Chandeleur Islands represent the largest and oldest transgressive barrier island arc in the northern Gulf of Mexico. Generated by the transgressive submergence of the St. Bernard delta complex, the Chandeleur Islands form the protective geologic framework for one of the richest areas of salt marsh and seagrass flats in Louisiana. The Chandeleur barrier island arc is 60 km long and consists of five individual islands backed by a linear, multiple bar system enclosing a shallow basin floored by extensive seagrass flats. The northern part of the Chandeleur chain is the highest in relief, elevation, width, and habitat diversity. Nonstorm morphology is predominantly a combination of continuous dunes and dune terraces. Numerous washover channels and large washover fans extend into the backbarrier environment. Further south, the island width decreases and washover flats and terraces dominate the shoreline morphology In the southernmost section, the island arc is fragmented into a series of small islands and shoals separated by tidal inlets. Between 1984 and 1989, aerial videotape, aerial photographic, and bathymetric surveys were used to map and monitor the geomorphic changes occurring along the shoreline and in backbarrier areas. The aerial videotape mapping surveys focused on the impacts of hurricanes Danny, Elena, and Juan on the geomorphology of the islands. Videotape imagery was acquired in July 1984 and in July (prestorm), August (post-Danny), September (post-Elena), and November (post-Juan) 1985. A coastal geomorphic classification was developed to map the spatial and temporal landscape changes between surveys.

  19. Louisiana Natural Disasters and Ecological Forecasting: Assessment of Tropical Cyclone Induced Transgression of the Chandeleur Islands for Restoration and Wildlife Management

    NASA Astrophysics Data System (ADS)

    Reahard, R. R.; Mitchell, B. S.; Childs, L. M.; Billiot, A.; Brown, T.

    2009-12-01

    The Chandeleur Islands are the first line of defense against tropical storms and hurricanes for coastal Louisiana. They provide habitats for bird species and are a national wildlife refuge; however, they are eroding and transgressing at an alarming rate. In 1998, Hurricane Georges caused severe damage to the chain, prompting restoration and monitoring efforts by both Federal and State agencies. Since then, storm events have steadily diminished the condition of the islands. Quantification of shoreline erosion, vegetation, and land loss, from 1979 to 2009, was calculated through the analysis of imagery from Landsat 2-4 Multispectral Scanner, Landsat 4 & 5 Thematic Mapper, and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) sensors. QuickBird imagery was used to validate the accuracy of these results. In addition, this study presents an application of Moderate Resolution Imaging Spectroradiometer (MODIS) data to assist in tracking the landward migration of the Chandeleur Islands. The use of near infrared reflectance calculated from MOD09 surface reflectance data from 2000 to 2008 was analyzed using the Time Series Product Tool. The scope of this project includes not only assessments of the tropical cyclonic events during this time period, but also the effects of tides, winds, and cold fronts on the spatial extent of the islands. Partnering organizations, such as the Pontchartrain Institute for Environmental Sciences, will utilize those results in an effort to better monitor and address the continual change of the Chandeleur Islands.

  20. Subsurface control on seafloor erosional processes offshore of the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    Twichell, D.; Pendleton, E.; Baldwin, W.; Flocks, J.

    2009-01-01

    The Chandeleur Islands lie on the eastern side of the modern Mississippi River delta plain, near the edge of the St. Bernard Delta complex. Since abandonment approximately 2,000 years b.p., this delta complex has undergone subsidence and ravinement as the shoreline has transgressed across it. High-resolution seismic-reflection, sidescan-sonar, and bathymetry data show that seafloor erosion is influenced by locally variable shallow stratigraphy. The data reveal two general populations of shallow erosional depressions, either linear or subcircular in shape. Linear depressions occur primarily where sandy distributary-channel deposits are exposed on the seafloor. The subcircular pits are concentrated in areas where delta-front deposits crop out, and occasional seismic blanking indicates that gas is present. The difference in erosional patterns suggests that delta-front and distributary-channel deposits respond uniquely to wave and current energy expended on the inner shelf, particularly during stormy periods. Linear depressions may be the result of the sandy distributary-channel deposits eroding more readily by waves and coastal currents than the surrounding delta-front deposits. Pits may develop as gas discharge or liquefaction occurs within fine-grained delta-front deposits, causing seafloor collapse. These detailed observations suggest that ravinement of this inner shelf surface may be ongoing, is controlled by the underlying stratigraphy, and has varied morphologic expression. ?? 2009 Springer-Verlag.

  1. Subsurface control on seafloor erosional processes offshore of the Chandeleur Islands, Louisiana

    NASA Astrophysics Data System (ADS)

    Twichell, David; Pendleton, Elizabeth; Baldwin, Wayne; Flocks, James

    2009-12-01

    The Chandeleur Islands lie on the eastern side of the modern Mississippi River delta plain, near the edge of the St. Bernard Delta complex. Since abandonment approximately 2,000 years b.p., this delta complex has undergone subsidence and ravinement as the shoreline has transgressed across it. High-resolution seismic-reflection, sidescan-sonar, and bathymetry data show that seafloor erosion is influenced by locally variable shallow stratigraphy. The data reveal two general populations of shallow erosional depressions, either linear or subcircular in shape. Linear depressions occur primarily where sandy distributary-channel deposits are exposed on the seafloor. The subcircular pits are concentrated in areas where delta-front deposits crop out, and occasional seismic blanking indicates that gas is present. The difference in erosional patterns suggests that delta-front and distributary-channel deposits respond uniquely to wave and current energy expended on the inner shelf, particularly during stormy periods. Linear depressions may be the result of the sandy distributary-channel deposits eroding more readily by waves and coastal currents than the surrounding delta-front deposits. Pits may develop as gas discharge or liquefaction occurs within fine-grained delta-front deposits, causing seafloor collapse. These detailed observations suggest that ravinement of this inner shelf surface may be ongoing, is controlled by the underlying stratigraphy, and has varied morphologic expression.

  2. Topographic lidar survey of Dauphin Island, Alabama and Chandeleur, Stake, Grand Gosier and Breton Islands, Louisiana, July 12-14, 2013

    USGS Publications Warehouse

    Guy, Kristy K.; Plant, Nathaniel G.

    2014-01-01

    This Data Series Report contains lidar elevation data collected on July 12 and 14, 2013, for Dauphin Island, Alabama, and Chandeleur, Stake, Grand Gosier and Breton Islands, Louisiana. Classified point cloud data—data points described in three dimensions—in lidar data exchange format (LAS) and bare earth digital elevation models (DEMs) in ERDAS Imagine raster format (IMG) are available as downloadable files. Photo Science, Inc., was contracted by the U.S. Geological Survey (USGS) to collect and process these data. The lidar data were acquired at a horizontal spacing (or nominal pulse spacing) of 1 meter (m) or less. The USGS surveyed points within the project area from July 14–23, 2013, for use in ground control and accuracy assessment. Photo Science, Inc., calculated a vertical root mean square error (RMSEz) of 0.012 m by comparing 10 surveyed points to an interpolated elevation surface of unclassified lidar data. The USGS also checked the data using 80 surveyed points and unclassified lidar point elevation data and found an RMSEz of 0.073 m. The project specified an RMSEz of 0.0925 m or less. The lidar survey was acquired to document the short- and long-term changes of several different barrier island systems. Specifically, this survey supports detailed studies of Chandeleur and Dauphin Islands that resolve annual changes in beaches, berms and dunes associated with processes driven by storms, sea-level rise, and even human restoration activities. These lidar data are available to Federal, State and local governments, emergency-response officials, resource managers, and the general public.

  3. Post-Hurricane Katrina coastal oblique aerial photographs collected from Panama City, Florida, to Lakeshore, Mississippi, and the Chandeleur Islands, Louisiana, August 31, 2005

    USGS Publications Warehouse

    Morgan, Karen L. M.; DeWitt, Nancy T.

    2017-04-03

    The U.S. Geological Survey (USGS), as part of the National Assessment of Storm-Induced Coastal Change Hazards project, conducts baseline and storm-response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On August 31, 2005, the USGS conducted an oblique aerial photographic survey from Panama City, Florida, to Lakeshore, Mississippi, and the Chandeleur Islands, Louisiana, aboard a Piper Navajo Chieftain aircraft at an altitude of 500 feet and approximately 1,000 feet offshore. This mission was flown to collect post-Hurricane Katrina data, which can be used to assess incremental changes in the beach and nearshore area and can be used to assess future coastal change.The photographs in this report are Joint Photographic Experts Group (JPEG) images. These photographs document the state of the barrier islands and other coastal features at the time of the survey.

  4. Temporal changes in lithology and radiochemistry from the back-barrier environments along the Chandeleur Islands, Louisiana: March 2012-July 2013

    USGS Publications Warehouse

    Marot, Marci E.; Adams, C. Scott; Richwine, Kathryn A.; Smith, Christopher G.; Osterman, Lisa E.; Bernier, Julie C.

    2014-01-01

    Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center conducted a time-series collection of shallow sediment cores from the back-barrier environments along the Chandeleur Islands, Louisiana from March 2012 through July 2013. The sampling efforts were part of a larger USGS study to evaluate effects on the geomorphology of the Chandeleur Islands following the construction of an artificial sand berm to reduce oil transport onto federally managed lands. The objective of this study was to evaluate the response of the back-barrier tidal and wetland environments to the berm. This report serves as an archive for sedimentological, radiochemical, and microbiological data derived from the sediment cores. Data are available for a time-series of four sampling periods: March 2012; July 2012; September 2012; and July 2013. Downloadable data are available as Excel spreadsheets and as JPEG files. Additional files include: ArcGIS shapefiles of the sampling sites, detailed results of sediment grain size analyses, and formal Federal Geographic Data Committee metadata.

  5. Archive of digital chirp subbottom profile data collected during USGS cruises 13BIM02 and 13BIM07 offshore of the Chandeleur Islands, Louisiana, 2013

    USGS Publications Warehouse

    Forde, Arnell S.; Miselis, Jennifer L.; Flocks, James G.; Bernier, Julie C.; Wiese, Dana S.

    2014-01-01

    On July 5–19 (cruise 13BIM02) and August 22–September 1 (cruise 13BIM07), 2013, the U.S. Geological Survey (USGS) conducted geophysical surveys to investigate the geologic controls on barrier island evolution and medium-term and interannual sediment transport along the oil spill mitigation sand berm constructed at the north end and offshore of the Chandeleur Islands, Louisiana. This investigation is part of a broader USGS study, which seeks to understand barrier island evolution better over medium time scales (months to years). This report serves as an archive of unprocessed digital chirp subbottom data, trackline maps, navigation files, Geographic Information System (GIS) files, Field Activity Collection System (FACS) logs, and formal Federal Geographic Data Committee (FGDC) metadata. Gained–showing a relative increase in signal amplitude–digital images of the seismic profiles are provided. Refer to the Abbreviations page for explanations of acronyms and abbreviations used in this report.

  6. Inundation of a barrier island (Chandeleur Islands, Louisiana, USA) during a hurricane: Observed water-level gradients and modeled seaward sand transport

    NASA Astrophysics Data System (ADS)

    Sherwood, Christopher R.; Long, Joseph W.; Dickhudt, Patrick J.; Dalyander, P. Soupy; Thompson, David M.; Plant, Nathaniel G.

    2014-07-01

    Large geomorphic changes to barrier islands may occur during inundation, when storm surge exceeds island elevation. Inundation occurs episodically and under energetic conditions that make quantitative observations difficult. We measured water levels on both sides of a barrier island in the northern Chandeleur Islands during inundation by Hurricane Isaac. Wind patterns caused the water levels to slope from the bay side to the ocean side for much of the storm. Modeled geomorphic changes during the storm were very sensitive to the cross-island slopes imposed by water-level boundary conditions. Simulations with equal or landward sloping water levels produced the characteristic barrier island storm response of overwash deposits or displaced berms with smoother final topography. Simulations using the observed seaward sloping water levels produced cross-barrier channels and deposits of sand on the ocean side, consistent with poststorm observations. This sensitivity indicates that accurate water-level boundary conditions must be applied on both sides of a barrier to correctly represent the geomorphic response to inundation events. More broadly, the consequence of seaward transport is that it alters the relationship between storm intensity and volume of landward transport. Sand transported to the ocean side may move downdrift, or aid poststorm recovery by moving onto the beach face or closing recent breaches, but it does not contribute to island transgression or appear as an overwash deposit in the back-barrier stratigraphic record. The high vulnerability of the Chandeleur Islands allowed us to observe processes that are infrequent but may be important at other barrier islands.

  7. EAARL Coastal Topography—Chandeleur Islands, Post-Hurricane Katrina, 2005

    USGS Publications Warehouse

    Kranenburg, Christine; Long, Joseph W.; Fredericks, Alexandra M.

    2017-01-01

    These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Chandeleur Islands, Louisiana. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) during September 2005, immediately following Hurricane Katrina landfall.

  8. Archive of digital chirp subbottom profile data collected during USGS cruise 11BIM01 Offshore of the Chandeleur Islands, Louisiana, June 2011

    USGS Publications Warehouse

    Forde, Arnell S.; Dadisman, Shawn V.; Miselis, Jennifer L.; Flocks, James G.; Wiese, Dana S.

    2013-01-01

    From June 3 to 13, 2011, the U.S. Geological Survey conducted a geophysical survey to investigate the geologic controls on barrier island framework and long-term sediment transport along the oil spill mitigation sand berm constructed at the north end and just offshore of the Chandeleur Islands, LA. This effort is part of a broader USGS study, which seeks to better understand barrier island evolution over medium time scales (months to years). This report serves as an archive of unprocessed digital chirp subbottom data, trackline maps, navigation files, Geographic Information System (GIS) files, Field Activity Collection System (FACS) logs, and formal Federal Geographic Data Committee (FGDC) metadata. Gained (showing a relative increase in signal amplitude) digital images of the seismic profiles are also provided.

  9. Archive of digital Chirp sub-bottom profile data collected during USGS Cruise 07SCC01 offshore of the Chandeleur Islands, Louisiana, June 2007

    USGS Publications Warehouse

    Forde, Arnell S.; Dadisman, Shawn V.; Flocks, James G.; Wiese, Dana S.

    2010-01-01

    In June of 2007, the U.S. Geological Survey (USGS) conducted a geophysical survey offshore of the Chandeleur Islands, Louisiana, in cooperation with the Louisiana Department of Natural Resources (LDNR) as part of the USGS Barrier Island Comprehensive Monitoring (BICM) project. This project is part of a broader study focused on Subsidence and Coastal Change (SCC). The purpose of the study was to investigate the shallow geologic framework and monitor the enviromental impacts of Hurricane Katrina (Louisiana landfall was on August 29, 2005) on the Gulf Coast's barrier island chains. This report serves as an archive of unprocessed digital 512i and 424 Chirp sub-bottom profile data, trackline maps, navigation files, Geographic Information System (GIS) files, Field Activity Collection System (FACS) logs, observer's logbook, and formal Federal Geographic Data Committee (FGDC) metadata. Gained (a relative increase in signal amplitude) digital images of the seismic profiles are also provided. Refer to the Acronyms page for expansion of acronyms and abbreviations used in this report. The USGS St. Petersburg Coastal and Marine Science Center (SPCMSC) assigns a unique identifier to each cruise or field activity. For example, 07SCC01 tells us the data were collected in 2007 for the Subsidence and Coastal Change (SCC) study and the data were collected during the first field activity for that study in that calendar year. Refer to http://walrus.wr.usgs.gov/infobank/programs/html/definition/activity.html for a detailed description of the method used to assign the field activity identification (ID). All Chirp systems use a signal of continuously varying frequency; the Chirp systems used during this survey produce high resolution, shallow penetration profile images beneath the seafloor. The towfish is a sound source and receiver, which is typically towed 1 - 2 m below the sea surface. The acoustic energy is reflected at density boundaries (such as the seafloor or sediment layers

  10. Assessment of Tropical Cyclone Induced Transgression of the Chandeleur Islands for Restoration and Wildlife Management

    NASA Technical Reports Server (NTRS)

    Reahard, Ross; Mitchell, Brandie; Brown, Tevin; Billiot, Amanda

    2010-01-01

    Barrier Islands are the first line of defense against tropical storms and hurricanes for coastal areas. Historically, tropical cyclonic events have had a great impact on the transgression of barrier islands, especially the Chandeleur Island chain off the eastern coast of Louisiana. These islands are of great importance, aiding in the protection of southeastern Louisiana from major storms, providing habitat for nesting and migratory bird species, and are part of the second oldest wildlife refuge in the country. In 1998, Hurricane Georges caused severe damage to the chain, prompting restoration and monitoring efforts by both federal and state agencies. Since then, multiple storm events have steadily diminished the integrity of the islands. Hurricane Katrina in 2005 thwarted all previous restoration efforts, with Hurricane Gustav in 2008 exacerbating island erosion and vegetation loss. Data from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), Moderate Resolution Imaging Spectroradiometer (MODIS), Landsat 2-4 Multispectral Scanner (MSS), and Landsat 5 Thematic Mapper (TM) will be utilized to detect land loss, island transgression, and vegetation change from 1979 to 2009. This study looks to create a more synoptic view of the transgression of the Chandeleur Islands and correlate weather and sea surface phenomena with erosion trends over the past 30 years, so that partnering organizations such as the Pontchartrain Institute for Environmental Sciences (PIES) can better monitor and address the continual change of the island chain.

  11. Archive of digital chirp subbottom profile data collected during USGS cruise 12BIM03 offshore of the Chandeleur Islands, Louisiana, July 2012

    USGS Publications Warehouse

    Forde, Arnell S.; Miselis, Jennifer L.; Wiese, Dana S.

    2014-01-01

    From July 23 - 31, 2012, the U.S. Geological Survey conducted geophysical surveys to investigate the geologic controls on barrier island framework and long-term sediment transport along the oil spill mitigation sand berm constructed at the north end and just offshore of the Chandeleur Islands, La. (figure 1). This effort is part of a broader USGS study, which seeks to better understand barrier island evolution over medium time scales (months to years). This report serves as an archive of unprocessed digital chirp subbottom data, trackline maps, navigation files, Geographic Information System (GIS) files, Field Activity Collection System (FACS) logs, and formal Federal Geographic Data Committee (FGDC) metadata. Gained (showing a relative increase in signal amplitude) digital images of the seismic profiles are also provided. Refer to the Abbreviations page for expansions of acronyms and abbreviations used in this report. The USGS St. Petersburg Coastal and Marine Science Center (SPCMSC) assigns a unique identifier to each cruise or field activity. For example, 12BIM03 tells us the data were collected in 2012 during the third field activity for that project in that calendar year and BIM is a generic code, which represents efforts related to Barrier Island Mapping. Refer to http://walrus.wr.usgs.gov/infobank/programs/html/definition/activity.html for a detailed description of the method used to assign the field activity ID. All chirp systems use a signal of continuously varying frequency; the EdgeTech SB-424 system used during this survey produces high-resolution, shallow-penetration (typically less than 50 milliseconds (ms)) profile images of sub-seafloor stratigraphy. The towfish contains a transducer that transmits and receives acoustic energy and is typically towed 1 - 2 m below the sea surface. As transmitted acoustic energy intersects density boundaries, such as the seafloor or sub-surface sediment layers, energy is reflected back toward the transducer, received

  12. Assessment of Tropical Cyclone Induced Transgression of the Chandeleur Islands for Restoration and Wildlife Management

    NASA Technical Reports Server (NTRS)

    Mitchell, Brandie; Reahard, Ross; Billiot, Amanda; Brown, Tevin; Childs, Lauren

    2009-01-01

    The Chandeleur Islands are the first line of defense against tropical storms and hurricanes for coastal Louisiana. They provide habitats for birds species and are a wildlife refuge; however, distressingly, they are eroding and transgressing at an alarming rate. In 1998, Hurricane Georges caused severe damage to the chain, prompting restoration and monitoring efforts by both Federal and State agencies. Since then, storm events have steadily diminished the condition of the islands. Quantification of shoreline erosion, vegetation, and land loss, from 1979 to 2009, was achieved through the analysis of imagery from Landsat 2-4 Multispectral Scanner, Landsat 4 & 5 Thematic Mapper, and Advanced Spaceborne Thermal Emission and Reflection Radiometer sensors. QuickBird imagery was used to validate the accuracy of these results. In addition, this study presents an application of Moderate Resolution Imaging Spectroradiometer data to assist in tracking the transgression of the Chandeleur Islands. The use of near infrared reflectance calculated from MOD09 surface reflectance data from 2000 to 2009 was analyzed using the Time Series Product Tool. The scope of this project includes not only assessments of the tropical cyclonic events during this time period, but also the effects of tides, winds, and cold fronts on the spatial extent of the islands. Partnering organizations, such as the Pontchartrain Institute for Environmental Research, will utilize those results in an effort to better monitor and address the continual change of the island chain.

  13. Modeling Wave Overtopping on the Chandeleur Islands during Hurricane Katrina using XBeach

    NASA Astrophysics Data System (ADS)

    Lindemer, C. A.; Plant, N.; Puleo, J.; Thompson, D.

    2008-12-01

    Tropical cyclones that enter or form in the Gulf of Mexico generate storm surge and large waves that impact low-lying coastlines of along the Gulf Coast. Much of the Gulf Coast is ringed with barrier islands that provide inland marshes and the mainland some protection from storm events. The Chandeleur Islands, are located 161 km east of New Orleans, Louisiana and are oriented from north to south, and act to dissipate some of this energy. After a series of major storm events between 2001 and 2005, Hurricane Katrina's devastation in the fall of 2005 was particularly violent, destroying two-thirds of the area associated with the island chain. We would like to evaluate the predictability of hurricane-induced barrier island erosion and accretion. We test the ability of a time-dependent hydrodynamic and morphodynamic model, XBeach, to predict the impact of Hurricane Katrina on portions of Chandeleur Islands. Pre-storm LIDAR-derived bathymetry/topography and surge and wave data were used to drive a number of XBeach simulations. Model-predicted morphology was compared to post-storm LIDAR data. The accuracy of these predictions, including model sensitivity tests with varying grid size and temporal resolutions, are presented.

  14. Sediment Lithology and Radiochemistry from the Back-Barrier Environments Along the Northern Chandeleur Islands, Louisiana—March 2012

    USGS Publications Warehouse

    Marot, Marci E.; Smith, Christopher G.; Adams, C. Scott; Richwine, Kathryn A.

    2017-04-11

    Scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center collected a set of 8 sediment cores from the back-barrier environments along the northern Chandeleur Islands, Louisiana, in March 2012. The sampling efforts were part of a larger USGS study to evaluate effects on the geomorphology of the Chandeleur Islands following the construction of an artificial sand berm to reduce oil transport onto federally managed lands. The objective of this study was to evaluate the response of the back-barrier tidal and wetland environments to the berm. This report serves as an archive for sedimentological and radiochemical data derived from the sediment cores. The data described in this report are available for download on the data downloads page.

  15. Archive of Sediment Data Collected around the Chandeleur Islands and Breton Island in 2007 and 1987 (Vibracore Surveys: 07SCC04, 07SCC05, and 87039)

    USGS Publications Warehouse

    Dreher, C.A.; Flocks, J.G.; Kulp, M.A.; Ferina, N.F.

    2010-01-01

    In 2006 and 2007, the U.S. Geological Survey (USGS) and collaborators at the University of New Orleans (UNO) collected high-resolution seismic profiles and subsurface cores around the Chandeleur and Breton Islands, Louisiana (Study Area Map). To ground-truth the acoustic seismic surveys conducted in 2006, 124 vibracores were acquired during the 07SCC04 and 07SCC05 cruises in 2007. These cores were collected within the back-barrier, nearshore, and offshore environments. The surveys were conducted as part of a post-hurricane assessment and sediment resource inventory for the Barrier Island Coastal Monitoring (BICM) project. Vibracores were collected offshore using the USGS R/V G.K. Gilbert, while the terrestrial, back-barrier, and nearshore vibracores were collected from the UNO R/V Greenhead. This report serves as an archive of sediment data from two concurrent vibracore surveys (cruises 07SCC04 and 07SCC05) from around the Breton and Chandeleur Islands in 2007 and also documents sediment data from vibracores collected offshore of the Chandeleur Islands in 1987 (cruise 87039). The 1987 vibracores were collected through the collaborated efforts of the USGS, Louisiana Geological Survey (LGS), and Alpine Ocean Seismic. Each vibracore can be identified by cruise and core number.

  16. Barrier island erosion and protection in Louisiana: a coastal geomorphological perspective

    SciTech Connect

    Penland, S.; Suter, J.R.

    1988-09-01

    Louisiana has the highest rates of coastal erosion and land loss in the US. In Louisiana, rates of coastal land loss exceed 100 km/sup 2//year. Louisiana's barrier islands, whose presence creates and maintains an extensive estuarine system and protects the marshes from the wave energy of the open Gulf of Mexico, are rapidly vanishing, decreasing in area and migrating landward at rates up to 20 m/year. Between 1890 and 1979, Louisiana barriers decreased in area by 37%, shrinking from 92 to 58 km/sup 2/. The life expectancy of individual barrier island systems ranges between 50 years for the Isles Dernieres and 225 years for the Chandeleur Islands. Disappearance of the barrier islands will result in destruction of the barrier-built estuaries and accelerated marsh deterioration. Such destruction will severely impact the fishery and fur industries, valued at an estimated $1 billion per year, whose harvests depend on the habitat provided by these fragile coastal ecosystems.

  17. Stratigraphy and morphology of the barrier platform of Breton Island, Louisiana: deltaic, marine and human influences

    USGS Publications Warehouse

    Flocks, James G.; Kindinger, Jack G.; Miselis, Jennifer L.; Locker, Stanley D.

    2015-01-01

    Breton Island, located at the southern end of the Chandeleur Islands, Louisiana, is part of the Breton National Wildlife Refuge (NWR). Breton NWR is recognized as an important bird habitat and is host to one of Louisiana's largest historical brown pelican nesting colonies. Loss of island area through relative sea-level rise, storm impact, and impeded and diminishing sediment supply is reducing the available habitat, and restoration is necessary if the island is to remain emergent. Physical investigation of the Breton Island platform has provided new insight into the geologic framework. The data reveal a complex system that is undergoing both long-term and short-term change. Results of the study help to resolve uncertainties in island evolution and will assist in effective restoration of the island.

  18. Sand Resources, Regional Geology, and Coastal Processes of the Chandeleur Islands Coastal System: an Evaluation of the Breton National Wildlife Refuge

    USGS Publications Warehouse

    Lavoie, Dawn

    2009-01-01

    Breton National Wildlife Refuge, the Chandeleur Islands chain in Louisiana, provides habitat and nesting areas for wildlife and is an initial barrier protecting New Orleans from storms. The U.S. Geological Survey (USGS) in partnership with the University of New Orleans Pontchartrain Institute for Environmental Sciences undertook an intensive study that included (1) an analysis of island change based on historical maps and remotely sensed shoreline and topographic data; (2) a series of lidar surveys at 3- to 4-month intervals after Hurricane Katrina to determine barrier island recovery potential; (3) a discussion of sea level rise and effects on the islands; (4) an analysis of sea floor evolution and sediment dynamics in the refuge over the past 150 years; (5) an assessment of the local sediment transport and sediment resource availability based on the bathymetric and subbottom data; (6) a carefully selected core collection effort to groundtruth the geophysical data and more fully characterize the sediments composing the islands and surrounds; (7) an additional survey of the St. Bernard Shoals to assess their potential as a sand resource; and (8) a modeling study to numerically simulate the potential response of the islands to the low-intensity, intermediate, and extreme events likely to affect the refuge over the next 50 years. Results indicate that the islands have become fragmented and greatly diminished in subaerial extent over time: the southern islands retreating landward as they reorganize into subaerial features, the northern islands remaining in place. Breton Island, because maintenance of the Mississippi River-Gulf Outlet (MRGO) outer bar channel requires dredging, is deprived of sand sufficient to sustain itself. Regional sediment transport trends indicate that large storms are extremely effective in transporting sand and controlling the shoreline development and barrier island geometry. Sand is transported north and south from a divergent zone near

  19. Analysis of shoreline and geomorphic change for Breton Island, Louisiana, from 1869 to 2014

    USGS Publications Warehouse

    Terrano, Joseph F.; Flocks, James G.; Smith, Kathryn E. L.

    2016-04-19

    Many barrier islands in the United States are eroding and losing elevation substantively because of storm surge, waves, and sea-level changes. This is particularly true for the deltaic barrier system in Louisiana. Breton Island is near the mouth of the Mississippi River at the southern end of the Chandeleur barrier island chain in southeast Louisiana. This report expands on previous geomorphic studies of Breton Island by incorporating additional historic and recent datasets. Multiple analyses focus on longand short-term shoreline change, as well as episodic events and anthropogenic modification. Analyses periods include long term (1869–2014), long-term historic (1869–1950), post-Mississippi River-Gulf Outlet (1950–2014), pre/post-Hurricane Katrina (2004–5), and recent (2005–14). In addition to shoreline change, barrier island geomorphology is evaluated using island area, elevation, and sediment volume change. In the long term (1869–2014), Breton Island was affected by landward transgression, island narrowing, and elevation loss. Major storm events exacerbated the long-term trends. In the recent period (2005–14), Breton Island eroded at a slower rate than in the long-term and gained area and total sediment volume. The recent accretion is likely because of the lack of major storms since Hurricane Katrina in 2005.

  20. Geophysical Data from Offshore of the Chandeleur Islands, Eastern Mississippi Delta

    USGS Publications Warehouse

    Baldwin, Wayne E.; Pendleton, Elizabeth A.; Twichell, David C.

    2009-01-01

    This report contains the geophysical and geospatial data that were collected during two cruises on the R/V Acadiana along the eastern, offshore side of the Chandeleur Islands in 2006 and 2007. Data were acquired with the following equipment: a Systems Engineering and Assessment, Ltd., SwathPlus interferometric sonar; a Klein 3000 dual-frequency sidescan sonar; and an EdgeTech 512i chirp sub-bottom profiling system. The long-term goal of this mapping effort is to produce high-quality, high-resolution geologic maps and geophysical interpretations that can be utilized to investigate the impact of Hurricane Katrina, identify sand resources within the region, and make predictions regarding the future evolution of this coastal system.

  1. Change in the length of the middle section of the Chandeleur Islands oil berm, November 17, 2010, through September 6, 2011

    USGS Publications Warehouse

    Plant, N.G.; Guy, K.K.

    2013-01-01

    On April 20, 2010, an explosion on the Deepwater Horizon oil rig drilling at the Macondo Prospect site in the Gulf of Mexico resulted in a marine oil spill that continued to flow through July 15, 2010. One of the affected areas was the Breton National Wildlife Refuge, which consists of a chain of low-lying islands, including Breton Island and the Chandeleur Islands, and their surrounding waters. The island chain is located approximately 115-150 kilometers north-northwest of the spill site. A sand berm was constructed seaward of, and on, the island chain. Construction began at the northern end of the Chandeleur Islands in June 2010 and ended in April 2011. The berm consisted of three distinct sections based on where the berm was placed relative to the islands. The northern section of the berm was built in open water on a submerged portion of the Chandeleur Islands platform. The middle section was built approximately 70-90 meters seaward of the Chandeleur Islands. The southern section was built on the islands' beaches. Repeated Landsat and SPOT satellite imagery and airborne lidar were used to observe the disintegration of the berm over time. The methods used to analyze the remotely sensed data and the resulting, derived data for the middle section are described in this report.

  2. Geologic controls on sediment distribution and transport pathways around the Chandeleur Islands, LA., USA

    USGS Publications Warehouse

    Twichell, David; Pendleton, Elizabeth A.; Baldwin, Wayne; Flocks, James; Miner, Michael; Kulp, Mark

    2011-01-01

    Geophysical surveys around the Chandeleur Islands provide the necessary data to map the thickness and distribution of the Holocene deposit associated with this barrier island system. This system rests uncomformably on St. Bernard Delta deposits of the Mississippi Delta plain and is thinnest under the central part of the island chain and thickest at the northern and southern ends. The zone of divergence in the bidirectional littoral transport system coincides with the thin central part. An estimate of northward littoral transport rate based on lithosome age and the volume of sediment that has accumulated at the northern end of the transport cell suggests the average transport rate over the life of the system is greater than present day fair-weather estimates. This difference may be attributed to changes in transport rates through the life of the system, to changes in the rate of sea-level rise or to storms playing a more dominant role than fair-weather waves in littoral transport.

  3. Change in the length of the northern section of the Chandeleur Islands oil berm, September 5, 2010, through September 3, 2012

    USGS Publications Warehouse

    Plant, N.G.; Guy, K.K.

    2013-01-01

    On April 20, 2010, an explosion on the Deepwater Horizon oil rig drilling at the Macondo Prospect site in the Gulf of Mexico resulted in a marine oil spill that continued to flow through July 15, 2010. One of the affected areas was the Breton National Wildlife Refuge, which consists of a chain of low-lying islands, including Breton Island and the Chandeleur Islands, and their surrounding waters. The island chain is located approximately 115–150 kilometers north-northwest of the spill site. A sand berm was constructed seaward of, and on, the island chain. Construction began at the northern end of the Chandeleur Islands in June 2010 and ended in April 2011. The berm consisted of three distinct sections based on where the berm was placed relative to the islands. The northern section of the berm was built in open water on a submerged portion of the Chandeleur Islands platform. The middle section was built approximately 70–90 meters seaward of the Chandeleur Islands. The southern section was built on the islands’ beaches. Repeated Landsat and SPOT satellite imagery and airborne lidar were used to observe the disintegration of the berm over time. The methods used to analyze the remotely sensed data and the resulting, derived data for the northern section are described in this report.

  4. Change in the length of the southern section of the Chandeleur Islands oil berm, January 13, 2011, through September 3, 2012

    USGS Publications Warehouse

    Plant, Nathaniel G.; Guy, Kristy K.

    2014-01-01

    On April 20, 2010, an explosion on the Deepwater Horizon oil rig drilling at the Macondo Prospect site in the Gulf of Mexico resulted in a marine oil spill that continued to flow through July 15, 2010. One of the affected areas was the Breton National Wildlife Refuge, which consists of a chain of low-lying islands, including Breton Island and the Chandeleur Islands, and their surrounding waters. The island chain is located approximately 115–150 kilometers (km) north-northwest of the spill site. A sand berm was constructed seaward of, and on, the island chain. Construction began at the northern end of Chandeleur Islands in June 2010 and ended in April 2011 after 14 km of berm had been constructed. The berm consisted of three distinct sections based on where the berm was placed relative to the islands. The northern section of the berm was built in open water on a submerged portion of the Chandeleur Islands platform. The middle section was built approximately 70–90 meters (m) seaward of the Chandeleur Islands. The southern section was built on the islands’ beaches. Repeated Landsat and SPOT satellite imagery and airborne light detection and ranging (lidar) were used to observe the disintegration of the berm over time. The methods used to analyze the remotely sensed data and the resulting, derived data for the southern section are reported.

  5. Andrew shortens lifetime of Louisiana Barrier Islands

    NASA Astrophysics Data System (ADS)

    Bush, Susan

    Because the Isles Dernieres, a series of four barrier islands off the coast of Louisiana, have one of the most rapidly eroding shorelines in the world, geologists at the U.S. Geological Survey and the Louisiana Geological Survey have been monitoring erosion activity over the last several years, said Jeff Williams of the USGS in Reston, Va. Hurricane Andrew, which struck the state on August 26, caused severe erosional damage to these islands that has shortened their lifetimes.Before Andrew struck, geologists projected that Raccoon Island would disappear below sea level by the year 2001 and that Whiskey Island would disappear by 2016. Now, due to the severe erosion from Hurricane Andrew, the scientists claim that the islands may disappear before the turn of the century, and the other islands in the Dernieres chain are expected to follow suit within 2 decades. Raccoon, Whiskey, Trinity, and East islands make up the Isles Dernieres, which existed as one island, known as the Isle Derniere, before an 1856 hurricane and subsequent erosion.

  6. A GIS compilation of vector shorelines and associated shoreline change data for Breton Island, Louisiana: 1869-2014

    USGS Publications Warehouse

    Terrano, Joseph F.; Flocks, James G.; Smith, Kathryn E.L.

    2015-01-01

    Many barrier islands in the United States are experiencing substantive erosion and elevation loss due to storm surge, waves, and sea-level changes; this is particularly true for the deltaic barrier system in Louisiana. Breton Island is located near the mouth of the Mississippi River in the southern end of the Chandeleur Island chain in southeast Louisiana. This report expands on previous geomorphic studies of Breton Island by incorporating additional historic and recent datasets. Multiple analyses focused on long- and short-term shoreline change, as well as episodic events and anthropogenic modification. Analyses time periods included the long-term (1869–2014), long-term historic (1869–1950), post Mississippi River Gulf Outlet (1950–2014), pre/post Hurricane Katrina (2004–2005), and recent (2005–2014) change. In addition to shoreline change, barrier island geomorphology was evaluated using island area, elevation, and sediment volume change. In the long term (1969–2014), Breton Island has experienced landward transgression, island narrowing, and elevation loss. Major storm events are exacerbating the long-term trends. However, the short-term trends (2005–2014) show that Breton Island is eroding at a slower rate than long-term and has gained area and total sediment volume. The short-term accretion is likely due to the lack of major storms since Hurricane Katrina (2005).

  7. Louisiana Barrier Island Comprehensive Monitoring (BICM) Program Summary Report: Data and Analyses 2006 through 2010

    USGS Publications Warehouse

    Kindinger, Jack G.; Buster, Noreen A.; Flocks, James G.; Bernier, Julie C.; Kulp, Mark A.

    2013-01-01

    The Barrier Island Comprehensive Monitoring (BICM) program was implemented under the Louisiana Coastal Area Science and Technology (LCA S&T) office as a component of the System Wide Assessment and Monitoring (SWAMP) program. The BICM project was developed by the State of Louisiana (Coastal Protection Restoration Authority [CPRA], formerly Department of Natural Resources [DNR]) to complement other Louisiana coastal monitoring programs such as the Coastwide Reference Monitoring System-Wetlands (CRMS-Wetlands) and was a collaborative research effort by CPRA, University of New Orleans (UNO), and the U.S. Geological Survey (USGS). The goal of the BICM program was to provide long-term data on the barrier islands of Louisiana that could be used to plan, design, evaluate, and maintain current and future barrier-island restoration projects. The BICM program used both historical and newly acquired (2006 to 2010) data to assess and monitor changes in the aerial and subaqueous extent of islands, habitat types, sediment texture and geotechnical properties, environmental processes, and vegetation composition. BICM datasets included aerial still and video photography (multiple time series) for shoreline positions, habitat mapping, and land loss; light detection and ranging (lidar) surveys for topographic elevations; single-beam and swath bathymetry; and sediment grab samples. Products produced using BICM data and analyses included (but were not limited to) storm-impact assessments, rate of shoreline and bathymetric change, shoreline-erosion and accretion maps, high-resolution elevation maps, coastal-shoreline and barrier-island habitat-classification maps, and coastal surficial-sediment characterization maps. Discussions in this report summarize the extensive data-collection efforts and present brief interpretive analyses for four coastal Louisiana geographic regions. In addition, several coastal-wide and topical themes were selected that integrate the data and analyses within a

  8. Archive of bathymetry and backscatter data collected in 2014 nearshore Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana

    USGS Publications Warehouse

    DeWitt, Nancy T.; Fredericks, Jake J.; Flocks, James G.; Miselis, Jennifer L.; Locker, Stanley D.; Kindinger, Jack G.; Bernier, Julie C.; Kelso, Kyle W.; Reynolds, Billy J.; Wiese, Dana S.; Browning, Trevor

    2016-08-01

    As part of the Barrier Island Monitoring Project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys off Breton and Gosier Islands, Louisiana, in July and August of 2014. To assist the United States Fish and Wildlife Service (USFWS) with restoration planning efforts, the USGS was tasked with answering fundamental questions about the physical environment of the southern Chandeleur Islands, including the geology, morphology, and oceanography. Baseline data needed to answer these questions were either insufficient or missing. The USGS conducted a comprehensive geologic investigation in the summer of 2014, collecting geophysical and sedimentological data.Breton Island, located at the southern end of the Chandeleur Island chain in southeastern Louisiana, was recognized as a natural, globally significant nesting sanctuary for several bird species and was established as the Breton National Wildlife Refuge (NWR) in 1904. The areal extent of Breton Island has diminished 90 percent since 1920. Land loss is attributed to ongoing relative sea-level rise, diminished sediment supply, and storm impacts. The bird population on Breton Island has also declined over the years, most notably after Hurricane George in 1998 and after Hurricane Katrina in 2015; the latter completely submerged the island. Despite decreasing habitable acreage, migratory seabirds continue to return and nest on Breton Island. To prevent the island from being submerged in the future, and to protect, stabilize, and provide more nesting and foraging areas for the bird population, the USFWS proposed a restoration effort to rebuild Breton Island to its pre-Katrina footprint.This data series serves as an archive of processed interferometric swath and single-beam bathymetry data, and side-scan sonar data, collected in the nearshore of Breton and Gosier Islands, NWR, Louisiana. The data were collected during two USGS cruises (USGS

  9. Quaternary geology of Avery Island, Louisiana

    SciTech Connect

    Autin, W.J.; McCulloh, R.P.; Davison, A.T.

    1986-09-01

    Avery Island, one of the Five Islands salt domes of south-central Louisiana, is a piercement-type dome that has been uplifted from several kilometers' depth. It is nearly circular in plan with a maximum elevation approximately 50 m above the surrounding coastal marsh. Dissection has produced a terrain of gullies and steep slopes. The features identified indicate a complex geologic history for Avery Island. Deposition of late Pleistocene sediments in a low-relief alluvial plain and subsequent soil development predate domal uplift. The stratigraphy of loess and colluvial silts indicates the island was emergent during loess depositions. The degree of dissection, distribution of colluvium, and shearing of Quaternary sediments reflects continual uplift after loess deposition.

  10. Effects of proposed sediment borrow pits on nearshore wave climate and longshore sediment transport rate along Breton Island, Louisiana

    USGS Publications Warehouse

    Dalyander, Patricia (Soupy); Mickey, Rangley C.; Long, Joseph W.; Flocks, James G.

    2015-05-02

    As part of a plan to preserve bird habitat on Breton Island, the southernmost extent of the Chandeleur Islands and part of the Breton National Wildlife Refuge in Louisiana, the U.S. Fish and Wildlife Service plans to increase island elevation with sand supplied from offshore resources. Proposed sand extraction sites include areas offshore where the seafloor morphology suggests suitable quantities of sediment may be found. Two proposed locations east and south of the island, between 5.5–9 kilometers from the island in 3–6 meters of water, have been identified. Borrow pits are perturbations to shallow-water bathymetry and thus can affect the wave field in a variety of ways, including alterations in sediment transport and new erosional or accretional patterns along the beach. A scenario-based numerical modeling strategy was used to assess the effects of the proposed offshore borrow pits on the nearshore wave field. Effects were assessed over a range of wave conditions and were gaged by changes in significant wave height and wave direction inshore of the borrow sites, as well as by changes in the calculated longshore sediment transport rate. The change in magnitude of the calculated sediment transport rate with the addition of the two borrow pits was an order of magnitude less than the calculated baseline transport rate.

  11. Effects of proposed sediment borrow pits on nearshore wave climate and longshore sediment transport rate along Breton Island, Louisiana

    USGS Publications Warehouse

    Dalyander, Patricia (Soupy); Mickey, Rangley C.; Long, Joseph W.; Flocks, James G.

    2015-01-01

    As part of a plan to preserve bird habitat on Breton Island, the southernmost extent of the Chandeleur Islands and part of the Breton National Wildlife Refuge in Louisiana, the U.S. Fish and Wildlife Service plans to increase island elevation with sand supplied from offshore resources. Proposed sand extraction sites include areas offshore where the seafloor morphology suggests suitable quantities of sediment may be found. Two proposed locations east and south of the island, between 5.5–9 kilometers from the island in 3–6 meters of water, have been identified. Borrow pits are perturbations to shallow-water bathymetry and thus can affect the wave field in a variety of ways, including alterations in sediment transport and new erosional or accretional patterns along the beach. A scenario-based numerical modeling strategy was used to assess the effects of the proposed offshore borrow pits on the nearshore wave field. Effects were assessed over a range of wave conditions and were gaged by changes in significant wave height and wave direction inshore of the borrow sites, as well as by changes in the calculated longshore sediment transport rate. The change in magnitude of the calculated sediment transport rate with the addition of the two borrow pits was an order of magnitude less than the calculated baseline transport rate.

  12. Sediment data collected in 2014 and 2015 from around Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana

    USGS Publications Warehouse

    Bernier, Julie C.; Kelso, Kyle W.; Tuten, Thomas M.; Stalk, Chelsea A.; Flocks, James G.

    2017-03-08

    Breton Island, located at the southern end of the Chandeleur Islands, supports one of Louisiana’s largest historical brown pelican (Pelecanus occidentalis) nesting colonies. Although the brown pelican was delisted as an endangered species in 2009, nesting areas are threatened by continued land loss and are extremely vulnerable to storm impacts. The U.S. Fish and Wildlife Service proposed to restore Breton Island to pre-Hurricane Katrina conditions through rebuilding the shoreface, dune, and back-barrier marsh environments. Prior to restoration, scientists from the U.S. Geological Survey’s (USGS) St. Petersburg Coastal and Marine Science Center Geologic and Morphologic Evolution of Coastal Margins project collected high-resolution geophysical (topography, bathymetry, and sub-bottom profiles) and sedimentologic data from around Breton Island to characterize the geologic framework of the island platform, nearshore, and shelf environments. These data will be used to characterize the geologic framework around Breton Island, identify potential borrow areas for restoration efforts, quantify seafloor change, and provide information for sediment transport and morphologic change models to assess island response to restoration and natural processes.This report, along with the accompanying USGS data release, serves as an archive of sediment data from vibracores, push cores, and submerged grab samples collected from around Breton and Gosier Islands, Louisiana, during two surveys conducted in July 2014 and January 2015 (USGS Field Activity Numbers 2014–314–FA and 2014–336–FA, respectively). Sedimentologic and stratigraphic metrics (for example, sediment texture or unit thicknesses) derived from these data can be used to ground-truth the geophysical data and characterize potential sand resources or can be incorporated into sediment transport or morphologic change models. Data products, including sample location tables, descriptive core logs, core photographs and x

  13. 33 CFR 80.815 - Mobile Bay, AL to the Chandeleur Islands, LA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... the general trend of the shoreline. (b) A line drawn from Mobile Point Light to Dauphin Island Channel...-most extremity of Dauphin Island to the easternmost extremity of Petit Bois Island. (d) A line drawn... Islands, LA. 80.815 Section 80.815 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  14. 33 CFR 80.815 - Mobile Bay, AL to the Chandeleur Islands, LA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... the general trend of the shoreline. (b) A line drawn from Mobile Point Light to Dauphin Island Channel...-most extremity of Dauphin Island to the easternmost extremity of Petit Bois Island. (d) A line drawn... Islands, LA. 80.815 Section 80.815 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  15. 33 CFR 80.815 - Mobile Bay, AL to the Chandeleur Islands, LA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... the general trend of the shoreline. (b) A line drawn from Mobile Point Light to Dauphin Island Channel...-most extremity of Dauphin Island to the easternmost extremity of Petit Bois Island. (d) A line drawn... Islands, LA. 80.815 Section 80.815 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  16. 33 CFR 80.815 - Mobile Bay, AL to the Chandeleur Islands, LA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... the general trend of the shoreline. (b) A line drawn from Mobile Point Light to Dauphin Island Channel...-most extremity of Dauphin Island to the easternmost extremity of Petit Bois Island. (d) A line drawn... Islands, LA. 80.815 Section 80.815 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  17. 33 CFR 80.815 - Mobile Bay, AL to the Chandeleur Islands, LA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... the general trend of the shoreline. (b) A line drawn from Mobile Point Light to Dauphin Island Channel...-most extremity of Dauphin Island to the easternmost extremity of Petit Bois Island. (d) A line drawn... Islands, LA. 80.815 Section 80.815 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  18. Post-Katrina Land-Cover, Elevation, and Volume Change Assessment along the South Shore of Lake Pontchartrain, Louisiana, U.S.A.

    DTIC Science & Technology

    2011-01-01

    Estuarine, Coastal and Shelf Science, 74(1–2), 12–20. Froede, C.R., Jr., 2008. Changes to Dauphin Island , Alabama, brought about by Hurricane Katrina...Penland, S., 2009. Hurricane impact and recovery shoreline change analysis of the Chandeleur Islands , Louisiana, USA: 1855–2005. Geo-Marine Letters, 29(6...B.; Moore, A.; Grass, C., and Tate, B., 2007. Hurricane Katrina storm surge distribution and field observations on the Mississippi Barrier Islands

  19. Coastal bathymetry data collected in 2011 from the Chandeleur Islands, Louisiana

    USGS Publications Warehouse

    DeWitt, Nancy T.; Pfeiffer, William R.; Bernier, Julie C.; Buster, Noreen A.; Miselis, Jennifer L.; Flocks, James G.; Reynolds, Billy J.; Wiese, Dana S.; Kelso, Kyle W.

    2014-01-01

    This report serves as an archive of processed interferometric swath and single-beam bathymetry data. Geographic Iinformation System data products include a 50-meter cell-size interpolated bathymetry grid surface, trackline maps, and point data files. Additional files include error analysis maps, Field Activity Collection System logs, and formal Federal Geographic Data Committee metadata.

  20. EAARL Coastal Topography—Louisiana, Mississippi and Alabama September 2006

    USGS Publications Warehouse

    Long, Joseph W.; Morgan, Karen L. M.; Doran, Kara

    2016-01-01

    This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a September 20-22, 2006 airborne lidar survey for the Chandeleur Islands, Louisiana, and Cat Island, Mississippi, through Dauphin Island, Alabama. Elevation measurements were collected over the area using the National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography.

  1. Archive of sediment data collected in 2014 and 2015 from around Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana

    USGS Publications Warehouse

    Bernier, Julie C.; Kelso, Kyle W.; Tuten, Thomas M.; Stalk, Chelsea A.; Flocks, James G.

    2017-01-01

    Breton Island, located at the southern end of the Chandeleur Islands, supports one of Louisiana’s largest historical brown pelican nesting colonies. Although the brown pelican (Pelecanus occidentalis) was delisted as an endangered species in 2009, nesting areas are threatened by continued land loss and are extremely vulnerable to storm impacts. The U.S. Fish and Wildlife Service proposed to restore Breton Island to pre-Hurricane Katrina conditions through rebuilding the shoreface, dune, and back-barrier marsh environments. Prior to restoration, scientists from the U.S. Geological Survey’s (USGS) St. Petersburg Coastal and Marine Science Center Geologic and Morphologic Evolution of Coastal Margins project collected high-resolution geophysical (topography, bathymetry, and sub-bottom profiles) and sedimentologic data from around Breton Island to characterize the geologic framework of the island platform, nearshore, and shelf environments. These data will be used to characterize the geologic framework around Breton Island, identify potential borrow areas for restoration efforts, quantify seafloor change, and provide information for sediment transport and morphologic change models to asses island response to restoration and natural processes.This data release serves as an archive of sediment data from vibracores, push cores, and submerged grab samples collected from around Breton and Gosier Islands, Louisiana, during two surveys in July 2014 and January 2015 (USGS Field Activity Numbers [FAN] 2014–314–FA [alternate FAN 14BIM04] and 2014–336–FA, respectively). Sedimentologic and stratigraphic metrics (for example, sediment texture or unit thicknesses) derived from these data can be used to ground-truth the geophysical data and characterize potential sand resources or can be incorporated into sediment transport or morphologic change models. Data collection and processing methods are described in Data Series 1037. All 14BIM04 locations and GIS data files

  2. EAARL Coastal Topography—Louisiana, Mississippi and Alabama, March 2006

    USGS Publications Warehouse

    Long, Joseph W.; Morgan, Karen L. M.; Doran, Kara

    2016-01-01

    This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a March 14-15, 2006 airborne lidar survey for the Chandeleur Islands, Louisiana, and Ship Island, Mississippi through Orange Beach, Alabama. Elevation measurements were collected over the area using the National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography.

  3. 78 FR 62648 - Cat Island National Wildlife Refuge; West Feliciana Parish, Louisiana

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-22

    ... Fish and Wildlife Service Cat Island National Wildlife Refuge; West Feliciana Parish, Louisiana AGENCY...) documents for Cat Island National Wildlife Refuge (NWR). We provide this notice in compliance with our CCP... notice, we initiate our process for developing a CCP for Cat Island NWR, West Feliciana Parish,...

  4. 78 FR 70318 - Cat Island National Wildlife Refuge; West Feliciana Parish, Louisiana; Notice of Intent To...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-25

    ... Fish and Wildlife Service Cat Island National Wildlife Refuge; West Feliciana Parish, Louisiana; Notice... Act (NEPA) documents for Cat Island National Wildlife Refuge (NWR). We provided this notice in... conservation plan (CCP) and NEPA documents for Cat Island National Wildlife Refuge NWR, West Feliciana...

  5. Shoreline erosion rates along barrier islands of the north central gulf of Mexico

    NASA Astrophysics Data System (ADS)

    Shabica, Stephen V.; Dolan, Robert; May, Suzette; May, Paul

    1983-09-01

    Rates of shoreline change and overwash penetration distances were calculated for barrier islands along the Louisiana, Mississippi, and Alabama coasts with the orthogonal grid mapping system (OGMS). Average rates of shoreline change are exceptionally high in Louisiana, being of the order -4.7 to -7.4 m yr-1. Mississippi and Alabama recession rates are lower and range from -2.0 to -3.1 m yr-1 over the period of record. Erosion rates along the shorelines of these islands have remained relatively constant over the period of study with five exceptions in coastal Louisiana and the Chandeleur-Breton Islands Arc, and two exceptions along the Mississippi-Alabama barrier islands where they have accelerated. Mean overwash penetration is greatest along Dauphin Island, Alabama, and Cat Island, Mississippi: 207.6 and 197.9 m, respectively. The Chandeleur-Brenton Islands Arc range from 88.1 m at the central barrier to 180.4 along the flanks. The Mississippi islands range from 105.2 m on Ship Island to 200.5 m along central Horn Island. Mean overwash penetration along the Louisiana barriers is highly variable: 46.3 to 211.4 m.

  6. Baseline coastal oblique aerial photographs collected from Dauphin Island, Alabama, to Breton Island, Louisiana

    USGS Publications Warehouse

    Morgan, Karen L. M.

    2017-04-03

    The U.S. Geological Survey (USGS), as part of the National Assessment of Storm-Induced Coastal Change Hazards project, conducts baseline and storm-response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On June 9, 2011, the USGS conducted an oblique aerial photographic survey from Dauphin Island, Alabama, to Breton Island, Louisiana, aboard a Beechcraft BE90 King Air (aircraft) at an altitude of 500 feet (ft) (152 meters (m)) and approximately 1,200 ft (366 m) offshore. This mission was conducted to collect baseline data for assessing incremental changes in the beach and nearshore area and can be used to assess future coastal change.The photographs in this report are Joint Photographic Experts Group (JPEG) images. These photographs document the state of the barrier islands and other coastal features at the time of the survey.

  7. Channel Shoaling with Deepening of Houma Navigation Channel at Cat Island Pass, Louisiana

    DTIC Science & Technology

    2011-01-01

    m bottom width since 1974. The HNC is located in Louisiana on the northern Gulf of Mexico , and extends from Houma, Louisiana through Cat Island Pass...Approximately 20-30 cold fronts pass through the study area each year from September to May in the Northern Gulf of Mexico (Chaney, 1999). Storms that do not...Intercoastal Waterway (GIWW) at Houma, LA to Cat Island Pass, and 5.5 m MLG from Cat Island Pass to the Gulf of Mexico (USACE New Orleans District, 2007

  8. A methodology for modeling barrier island storm-impact scenarios

    USGS Publications Warehouse

    Mickey, Rangley C.; Long, Joseph W.; Plant, Nathaniel G.; Thompson, David M.; Dalyander, P. Soupy

    2017-02-16

    A methodology for developing a representative set of storm scenarios based on historical wave buoy and tide gauge data for a region at the Chandeleur Islands, Louisiana, was developed by the U.S. Geological Survey. The total water level was calculated for a 10-year period and analyzed against existing topographic data to identify when storm-induced wave action would affect island morphology. These events were categorized on the basis of the threshold of total water level and duration to create a set of storm scenarios that were simulated, using a high-fidelity, process-based, morphologic evolution model, on an idealized digital elevation model of the Chandeleur Islands. The simulated morphological changes resulting from these scenarios provide a range of impacts that can help coastal managers determine resiliency of proposed or existing coastal structures and identify vulnerable areas within those structures.

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

    SciTech Connect

    McBride, R.A.; Westphal, K.; Penland, S. ); Jaffe, B. ) ); Williams, S.J. )

    1989-09-01

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

  10. Characterizing barrier-island response to storm and human impact: a century of observations from Breton Island, Louisiana

    NASA Astrophysics Data System (ADS)

    Flocks, J. G.; Terrano, J.; Dalyander, S.

    2016-12-01

    Breton Island, a barrier-island located adjacent to the Mississippi River Delta in the Northern Gulf of Mexico, is recognized as a globally important bird habitat, hosting one of largest pelican nesting colonies in Louisiana. Over the past century extensive loss of island acreage has been documented, but the history of change has not been linked to physical drivers. In this study, high-resolution topo-bathymetric lidar and acoustic bathymetry are combined to create digital elevation models (DEMs) that are compared to historical datasets extending to the late 1800s. This analysis reveals shoreline and seafloor change patterns, most notably that island area has decreased by 85% since the early 1900s. This loss is attributed to a decrease in littoral sediment delivery across a shipping channel dredged adjacent to the island in the 1950s and an increase in storm frequency and intensity since the 1990s. In contrast to this long-term decline, island area has doubled in size since 2005, corresponding to a reduction in both storm and dredging activity. The study links island change to erosional processes and demonstrates the influence of short-term change events, both natural and man-made, on long-term barrier-island evolution. Because Breton Island itself has not been altered appreciably by restoration activities, these observations can be applied to natural barrier island systems elsewhere where sufficient monitoring data is not available.

  11. Impact of an extreme event on the sediment budget: Hurricane Andrew in the Louisiana barrier islands

    USGS Publications Warehouse

    List, Jeffrey H.; Hansen, Mark E.; Sallenger,, Asbury H.; Jaffe, Bruce E.; Edge, B.L

    1997-01-01

    This paper examines the influence of Hurricane Andrew on the sediment budget of an 80-kilometer section of the Louisiana barrier islands west of the modern Mississippi delta. Because long-term bathymetric change has been extensively studied in this area, excellent baseline data are available for evaluating the impact of Hurricane Andrew. Results show that despite the high intensity of the storm and a storm track optimally positioned to impact the study area, the storm did not have an overwhelming influence on the sediment budget when compared to the changes occurring over the previous 50 years. For the Louisiana barrier islands, a 50-year record appears to be adequate for averaging the long-term contributions of both major and minor storm events to the sediment budget.

  12. The Use of Sand Fences in Barrier Island Restoration: Experience on the Louisiana Coast

    DTIC Science & Technology

    2008-03-01

    PURPOSE: This System-Wide Water Resources (SWWRP) technical note describes experiences with sand fences to reduce losses by wind-blown sand...fence (United Nations Environmental Programme (UNEP) 1998). Sand fences are effective where there is sufficient wind speed to transport sand at the... water ). ERDC TN-SWWRP-08-4 March 2008 The Use of Sand Fences in Barrier Island Restoration: Experience on the Louisiana Coast By Syed M. Khalil

  13. Analyses of water, core material, and elutriate samples collected near Sicily Island, Louisiana (Sicily Island area levee project)

    USGS Publications Warehouse

    Demcheck, Dennis K.; Dupuy, Alton J.

    1980-01-01

    Samples consisting of composited core material were collected from five areas by the U.S. Army Corps of Engineers and analyzed by the U.S. Geological Survey to provide data on the impact of proposed channel excavation and levee construction in the Sicily Island area, Louisiana. Samples of receiving water from the five areas, selected to represent the water that will contact the proposed dredged material of the levee fill material, also were collected. Chemical and physical analyses were performed on samples of core material and native water and on elutriate samples of specific core material-receiving water mixtures. The results of these analyses are presented without interpretation. (USGS)

  14. Sedimentary environments, evolution, and stratigraphic framework of laterally prograding transgressive barrier complex: Timbalier Island, Louisiana

    SciTech Connect

    Isacks, T.S.; Moslow, T.F.

    1986-05-01

    Timbalier Island is a beach-ridge barrier flanking the abandoned late Lafourche deltaic lobe on the south-central Louisiana coast. Twenty-five vibracores (5-9 m) and 12 short cores were acquired in a variety of sub-aerial, intertidal, and subaqueous environments of this barrier complex. These cores, coupled with detailed shoreline change maps, indicate that the island's migration, evolution, and stratigraphy are complex and variable. Since 1887, Timbalier Island has laterally migrated approximately 6 km to the northwest, while the adjacent inlet (Cat Island Pass) migrated 2.5 km. Due to this extensive lateral progradation at the western end of the island, the following sequence is found: (1) bay/lagoon, (2) lowerspit platform/shoreface, (3) upper spit platform/shoreface, (4) foreshore, (5) backbeach, and (6) dune. An upward decrease in burrowing and increase in physical sedimentary structures, grain size, percent sand, and sorting are observed. None of the cored sequences resemble the tidal inlet channel-spit platform models observed elsewhere but, instead, mimic regressive shoreface sequences. During the island's evolution, the interior beach ridges subsided in response to compactional subsidence and became vegetated by a Spartina and Avicennia (mangrove) marsh. In this central-interior part of the island, the progradational sequence is capped by an aggradational (0.5-1 m thick) marsh deposit.

  15. Role of salt-marsh erosion in barrier island evolution and deterioration in coastal Louisiana

    SciTech Connect

    Reed, D.J. )

    1989-09-01

    Barrier shoreline erosion in Louisiana reaches over 10 m/year, and island area decreased by 40% between 1880 and 1979. Salt-marsh erosion is an important factor in evolutionary barrier shoreline development and is presently contributing, both directly and indirectly, to the deterioration of Louisiana's barrier islands. The marshes originally developed as fresh marshes associated with regression of Mississippi River delta lobes. After abandonment, salinity gradually increased and natural habitat change occurred as subsidence of deltaic sediments and transgression of the coastline by marine processes proceeded. The marsh surface is subjected to relative sea level rise and unless there is sufficient sedimentation to maintain marsh elevation, erosional processes become dominant. Increased inundation of marsh vegetation stresses even halophytic vegetation and leads to plant death. Examination of variations in marsh topography over an area of approximately 1 ha. revealed marked variations in the frequency and duration of tidal inundation. Increased flooding of lower areas can be sufficient to cause plant death and the opening of marsh ponds. As small ponds expand and coalesce to form larger areas of open water, wave action becomes important in eroding pond banks and mobilizing sediment from the bed causing pond deepening. Fragmentation of the marsh by these subsidence-induced processes is part of the evolution of morphostratigraphic forms in the Mississippi deltaic plain from erosional headland with flanking barriers to barrier island arc.

  16. Offshore sand resources for coastal erosion control in Louisiana

    SciTech Connect

    Ramsey, K.E.; Penland, S.; McBride, R.A. ); Suter, J.R. ); Williams, J. )

    1990-09-01

    An inventory of existing geophysical data supplemented by more than 15,000 km of high-resolution seismic profiles and 400 vibracores collected cooperatively by the Louisiana Geological Survey and US Geological Survey since 1981 indicates that a wide range of aggregate minerals occurs on the continental shelf in a variety of depositional settings. The distribution of these deposits is controlled by the geometry of the preexisting fluvial and deltaic channel systems and the stratigraphic signature of the Holocene Transgression across these features. The geology of coastal and offshore Louisiana is tied to the depositional history of the Mississippi River. Offshore of the delta plain, five types of aggregate sources can be identified: inner shelf shoals, submerged barrier islands, tidal inlets, distributary channels, and barrier platforms. This paper describes the geology of offshore Louisiana, the available geophysical data sets, and the distribution of aggregate mineral resources. On the continental shelf of the Mississippi River delta plain, two extensive seismic survey grids have been developed by the Louisiana Geological Survey and US Geological Survey. The most prospective resources found are the huge sand bodies of Ship Shoal and associated distributaries, Cat Island Pass tidal channels and associated tidal deltas, and Barataria Pass/Grand Terre tidal channels and associated tidal deltas. East of the mouth of the Mississippi River are the Chandeleur Islands, where LGS identified seven major sand resource targets, truncated barrier-spit and tidal inlet deposits, submerged beach ridges, and distributaries associated with abandoned St. Bernard delta complexes. Abundant sand resources can be found in offshore Louisiana. Many of the sand bodies contain heavy minerals, but their concentration and distribution is unknown. Other potential sand resources not yet adequately explored include Sabine Bank, the Outer Shoal, and the St. Bernard shoal.

  17. Stability evaluation of the Markel Mine at Weeks Island, Louisiana

    SciTech Connect

    Hoffman, E.L.

    1994-06-01

    A three dimensional (3D) finite element analysis of the Markel Mine located on Weeks Island was performed to: (1) evaluate the stability of the mine and (2) determine the effect of mine failure on the nearby Morton Salt mine and SPR facilities. The first part of the stability evaluation investigates the effect of pillar failure on mine stability. These simulations revealed that tensile stresses and dilatant damage develop in the overlying salt as a result of pillar loss. These tensile stresses extend to the salt/overburden interface only for the case where all 45 of the pillars are assumed to fail. Tensile stresses would likely cause microfracturing of the salt, resulting in a flow path for groundwater from the overlying aquifer to enter the mine. The dilatant damage bridges between the mine and the overburden in the case where 15 or more pillars are removed from the model. Dilatant damage is attributed to microfracturing or changes in the pore structure of the salt and could also result in a flow path for groundwater to enter the mine. The second part of the Markel Mine evaluation investigates the stability of the pillars with respect to three failure mechanisms: tensile failure, compressive failure, and creep rupture. A 3D slabbing pillar model of the Markel mine was developed to investigate progressive failure of the pillars and the effect of slabbing on mine stability. Based on a strain-limiting creep rupture criterion, pillar failure is predicted to be extensive at present. The associated loss of pillar strength should be equivalent to removing all pillars from the model as was done in the first part of this stability analysis, resulting in the possibility of ground water intrusion. Since creep rupture is not a well understood phenomenon, further development and validation of this criterion is recommended.

  18. Environmental Assessment for decommissioning the Strategic Petroleum Reserve Weeks Island Facility, Iberia Parish, Louisiana

    SciTech Connect

    1995-12-01

    The Strategic Petroleum Reserve (SPR) Weeks Island site is one of five underground salt dome crude oils storage facilities operated by the Department of Energy (DOE). It is located in Iberia Parish, Louisiana. The purpose of the proposed action is to decommission the Weeks Island crude oil storage after the oil inventory has been transferred to other SPR facilities. Water intrusion into the salt dome storage chambers and the development of two sinkholes located near the aboveground facilities has created uncertain geophysical conditions. This Environmental Assessment describes the proposed decommissioning operation, its alternatives, and potential environmental impacts. Based on this analyses, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act (NEPA) and has issued the Finding of No Significant Impact (FONSI).

  19. Evaluation of changes in beach morphology along Louisiana barrier island coast

    SciTech Connect

    Nakashima, L.D. )

    1989-09-01

    The Louisiana coast has been documented as the fastest eroding shoreline in the US. Rapid submergence and high beach erosion rates are the dominant responses to the seasonal wave climate, storm impacts, sea level rise, regional subsidence, and human activities. The cumulative impacts from the three hurricanes, which made landfall in Louisiana in 1985, and Hurricane Gilbert of 1988 produced extreme beach erosion. The magnitude of these effects was expressed in the cross-shore morphology, which was transformed from a wide back-barrier marsh, dune terrace or continuous dune, wide back-beach system to a narrow back-barrier marsh, washover sheet or washover terrace, and beach. The effects from Hurricane Gilbert ensured retention of this latter cross-shore morphology. These events, therefore, provided a unique opportunity to monitor the geomorphic response and recovery of the different subenvironments composing these barrier island beaches. A network of 41 beach profile lines was established in 1985 along straight and curved segments of eroding barrier island coast between Isles Dernieres and Sandy Point. The surveys preceded the 1985 hurricanes and were conducted quarterly through 1988. Efforts were made to quantify the cross-shore variability of beach response in each shoreline segment by analyzing linear and volumetric changes of the beach profiles.

  20. Effects of weir management on marsh loss, Marsh Island, Louisiana, USA

    NASA Astrophysics Data System (ADS)

    Nyman, John A.; Chabreck, Robert H.; Linscombe, R. G.

    1990-11-01

    Weirs are low-level dams traditionally used in Louisiana's coastal marshes to improve habitat for ducks and furbearers. Currently, some workers hope that weirs may reduce marsh loss, whereas others fear that weirs may accelerate marsh loss. Parts of Marsh Island, Louisiana, have been weir-managed since 1958 to improve duck and furbearer habitat. Using aerial photographs, marsh loss that occurred between 1957 and 1983 in a 2922-ha weir-managed area was compared to that in a 2365-ha unmanaged area. Marsh loss was 0.38%/yr in the weir-managed area, and 0.35%/yr in the unmanaged area. Because marsh loss in the two areas differed less than 0.19%/yr, it was concluded that weirs did not affect marsh loss. The increase in open water between 1957 and 1983 did not result from the expansion of lakes or bayous. Rather, solid marsh converted to broken marsh, and the amount of vegetation within previously existing broken marsh decreased. Solid marsh farthest from large lakes and bayous, and adjacent to existing broken marsh, seemed more likely to break up. Marsh Island has few canals; therefore, marsh loss resulted primarily from natural processes. Weirs may have different effects under different hydrological conditions; additional studies are needed before generalizations regarding weirs and marsh loss can be made.

  1. Groundwater dynamics and surface water-groundwater interactions in a prograding delta island, Louisiana, USA

    NASA Astrophysics Data System (ADS)

    O'Connor, Michael T.; Moffett, Kevan B.

    2015-05-01

    Deltas in coastal environments are assumed to function as chemical "buffers", filtering nutrient-rich terrestrial runoff through the island structures and aquatic ecosystems as it travels to the sea, but the magnitude of this effect cannot be accurately quantified without understanding the physical relationships between the surface water and groundwater. The groundwater hydrology of young, prograding delta systems and its relationship to surrounding surface water dynamics are poorly understood. This study developed a new conceptual model of the hydrology of a prograding delta island groundwater system. The study was based on field data collected at Pintail Island, a 2 km2 island within the Wax Lake Delta in Louisiana. Hydraulic properties and processes were quantified at multiple depths and locations spanning the island elevation gradient. Groundwater and surface water levels were monitored. A weather station recorded precipitation, air, and wind conditions. The groundwater within Pintail Island was both spatially and temporally dynamic throughout the study period of 9-September-2013 to 4-February-2014. The aquifer within the distal limbs of the island responded to surface water dynamics as a connected, saturated unconfined aquifer would, and its groundwater was controlled by the surrounding surface water fluctuations of semi-diurnal winds and tides. The aquifer within the older, higher elevation island apex was a lower-permeability system with subaerial fine sediments overlying deeper, sandier sediments. In contrast to the more bayward zone of the island, this more interior zone was controlled by storm recharge, low-permeability sediments, and low head gradients, but little affected by diurnal surface water fluctuations. Groundwater flow was directed outward from the interior of the island apex and the levees toward the delta channels and the central island lagoon, but storms and high tides temporarily reversed flow directions at some locations and times, likely

  2. Topobathymetric Lidar survey of Breton and Gosier Islands, Louisiana, January 16 and 18, 2014

    USGS Publications Warehouse

    Terrano, Joseph F.; Flocks, James G.; Smith, Kathryn E. L.

    2016-01-01

    This dataset contains binary point-cloud data and a Digital Elevation Model (DEM), produced from remotely sensed, geographically referenced topobathymetric measurements encompassing the Breton Island and Gosier Islands, LA study area. The original area of interest was buffered by 100 meters to ensure complete coverage, resulting in approximately 75 square miles of lidar data.The Breton Island Lidar project called for the planning, acquisition, processing, and derivative products of topobathymetric lidar data, collected at a nominal pulse spacing (NPS) of 0.5-0.45 meters (4-5 points/square meter). Lidar acquisition was prioritized to coincide with the lowest tide possible. Water clarity was also assessed and deemed acceptable prior to acquisition flights.The data, in meters, are projected to UTM Zone 16 North and referenced horizontally to the NAD83 (2011) datum and vertically to the NAVD88 (GEOID12A) datum. The classified point-cloud data were delivered in LAS v1.2 format and the merged DEM was converted to a GeoTIFF file. Each LAS file contains data in a 1-kilometer by 1-kilometer tile named according to the US National Grid conventions. The final product was a DEM for Breton Island along with a LAZ file for both Breton Island and Gosier Islands.For further information regarding data collection and/or processing methods refer to USGS Open-File Report Analysis of Shoreline and Geomorphic Change for Breton Island, Louisiana from 1869 to 2014 (http://dx.doi.org/10.3133/ofr20161039).

  3. North Pecan Island field: a mature trend discovery in Miocene of southern Louisiana

    SciTech Connect

    Bauer, A.G.; McCormick, J.A.

    1985-02-01

    The Exxon 1 M.J. Epley discovery well for North Pecan Island field was completed in early 1982 as a discovery of significant new gas and condensate reserves in the mature Miocene trend of south Louisiana. The field is located in Vermilion Parish within a large megablock between 2 major down-to-the basin growth-fault systems and is on the southern end of a south-plunging structural nose. Traps in 2 fault segments are formed in southeasterly dipping beds upthrown to 2 north dipping, sealing faults. Six separate Robulus chambersi sandstones contain gas and condensate reserves. Major gas and condensate reserves from sandstone reservoirs in the R. chambersi section were discovered in the mid-1960s 3.3 mi. west in the Pecan island field and in the North Freshwater Bayou field, 5 mi northeast of the North Pecan Island field discovery. Several earlier dry holes just north of the discovery were drilled seeking to extend production from the upstructure Fire Island field (3 mi north), which produced a limited amount of gas and condensate from R. chambersi sandstones. Extensive structural and isopach mapping, aided by new high-resolution seismic data, revealed the North Pecan Island prospect to be structural high to production at Pecan Island and that the prospective section was deposited over a growing paleostructure. Four wells have been completed to date in the field, with flow rates as high as 30 MMCFGB. Current estimates place the new field recoverable at approximately 250 bcf of gas and 6 million bbl condensate.

  4. Sinkhole progression at the Weeks Island, Louisiana, Strategic Petroleum Reserve (SPR) site

    SciTech Connect

    Neal, J.T.; Bauer, S.J.; Ehgartner, B.L.

    1995-11-01

    A sinkhole measuring 11 m (36 ft) across and 9 m (30 ft) deep was first observed in alluvium overlying the Weeks Island, Louisiana, salt dome in May 1992, but it was about a year old, based on initial surface appearance and subsequent reverse extrapolation of growth rates. A second and much smaller sinkhole was identified in early 1995, nearly three years later. Their position directly over the edges of the SPR oil storage chamber, a former room-and-pillar salt mine, caused apprehension. The association of sinkholes over mines is well established and this occurrence suggested that groundwater influx undoubtedly was causing salt dissolution at shallow depth, and associated collapse of soil at the surface. Leaks of groundwater into other salt mines in Louisiana and elsewhere led to flooding and eventual abandonment (Coates et al., 1981). Consequently, much attention has been and continues to be given to characterizing these sinkholes, and to mitigation. This paper summarizes current engineering geologic concepts, and briefly describes diagnostic and risk mitigation efforts being conducted by the US Department of Energy, operator of the Strategic Petroleum Reserve (Bauer et al., 1994).

  5. Groundwater flow velocity measurements in a sinkhole at the Weeks Island Strategic Petroleum Reserve Facility, Louisiana

    SciTech Connect

    Ballard, S.; Gibson, J.

    1995-02-01

    In 1992, a sinkhole was discovered above a Strategic Petroleum Reserve storage facility at Weeks Island, Louisiana. The oil is stored in an old salt mine located within a salt dome. In order to assess the hydrologic significance of the sink hole, an In Situ Permeable Flow Sensor was deployed within a sand-filled conduit in the salt dome directly beneath the sinkhole. The flow sensor is a recently developed instrument which uses a thermal perturbation technique to measure the magnitude and direction of the full 3-dimensional groundwater flow velocity vector in saturated, permeable materials. The flow sensor measured substantial groundwater flow directed vertically downward into the salt dome. The data obtained with the flow sensor provided critical evidence which was instrumental in assessing the significance of the sinkhole in terms of the integrity of the oil storage facility.

  6. Health-hazard evaluation report HETA 88-391-2156, Morton Salt Company, Weeks Island, Louisiana

    SciTech Connect

    Ferguson, R.P.; Knutti, E.B.

    1991-11-01

    In response to a request from the International Chemical Workers Union, project director, an evaluation was undertaken of possible hazardous working conditions at the Morton Salt Company (SIC-1479), Weeks Island, Louisiana. At Weeks Island the salt was mined from large domes, circular in shape and from a few hundred yards to a mile across. The only detectable overexposures in the mining operation were to coal-tar pitch volatiles. None of the 20 personal breathing zone and area air samples collected in the mill were above detectable limits for asbestos (1332214). The prevalences of chronic cough and chronic phlegm reported were statistically different, exceeding those reported by a group of nonexposed blue collar workers. Chronic symptoms were reported by underground workers in all smoking categories, but only by those surface workers who also smoked. There were more complaints about eye irritation and tearing of the eyes in the underground workers, consistent with diesel byproduct exposure. Four workers were identified through pulmonary function test results with mild obstructive lung disease and one with moderate obstructive lung disease. Three workers with mild restriction of lung volume were noted. None of the 61 chest films taken read positively for pneumoconiosis. The authors conclude that overexposures to coal-tar pitch volatiles existed at the time of the survey. The authors recommend measures for reducing occupational exposures to workplace contaminants. A follow up medical questionnaire survey should be conducted.

  7. Controls on groundwater dynamics and root zone aeration of a coastal fluvial delta island, Wax Lake, Louisiana

    NASA Astrophysics Data System (ADS)

    O'Connor, M.; Hardison, A. K.; Moffett, K. B.

    2013-12-01

    Louisiana coastal wetlands are thought to function as buffers, filtering nutrient-rich terrestrial runoff as it travels to the Gulf of Mexico. While surface water filtration by these wetlands is a large and active area of research, flow through subsurface portions of the wetlands and possible nutrient cycling in the root zone has been largely overlooked. Specifically for Louisiana's coastal deltas, the physics and chemistry of island groundwater systems is unknown.To characterize these subsurface hydraulic dynamics at Pintail Island in the Wax Lake Delta, Louisiana, we collected sediment core samples and penetrometer measurements, monitored surface water and groundwater levels and chemistry, and analyzed meteorological, tidal, and river discharge data. As a first step, we focused on identifying wetland sediment properties and the relative influence of the major hydrologic controls, tides, delta outlet discharge, rainfall, and evapotranspiration, on water table dynamics. Pintail Island is a two-layer system with fine sediments and organic matter overlying sandy deltaic deposits. The sediment layer interface occurs approximately 60 cm below ground surface, around the mean surface water level. The vegetation root zone is concentrated in the surficial layer, although willow roots can extend into the deeper, higher-permeability sandy layer. Groundwater data from the upper portion of this sandy layer (~1m deep) is most strongly influenced by tides but also responds to long-term changes in discharge. While the tides are damped as they propagate into the island sediments, they also flood interior island lagoons, setting up groundwater gradients to potentially drive fluid and nutrient fluxes through the islands. Although the tidally oscillating water table causes significant temporal variation in root zone fluid potentials, evapotranspiration dynamics do not appear to strongly influence groundwater dynamics at depth, consistent with the shallow concentration of roots

  8. Fluid migration in the Eugene Island block 330 area, offshore Louisiana

    SciTech Connect

    Nunn, J.A. ); Roberts, S.J. ); Cathles, L.M. III ); Anderson, R.N. )

    1996-01-01

    In a study funded by industry and the Department of Energy, the Global Basins Research Network has imaged fluid flow pathways that charged shallow, hydropressured, Plio-Pleistocene reservoirs in the Eugene Island 330 field, offshore Louisiana. Hydrocarbons appear to be derived from turbidite stacks within the salt withdrawal mini-basin buried deep within the geopressured zone. Fault zones, with pore pressure dependent permeability, provide conduits for episodic expulsion of fluids out of the geopressured zone. Imaging of present day fluid migration was accomplished using multiple three-dimensional seismic surveys done several years apart. Volume processing and attribute analysis algorithms are used to identify seismic amplitude interconnectivity and changes over time that result from active fluid migration. Pressures and temperatures are used to provide rate and timing constraints. Geochemical variability in reservoirs is attributed to mixing of oils. Using detailed hydrostratigraphic information constructed from seismic and well data, we have simulated the episodic expulsion of fluids from the geopressured zone along faults into individual thin sand layers in the overlying hydropressured zone. Our finite element model, Akcess.Basin[trademark], realistically simulates fluid flow, heat and solute transport and pore pressure dependent permeability of faults and strata. Our results documenting the existence of past and present migration events connecting shallow reservoirs to deep source rocks implies that large, heretofore undiscovered hydrocarbon reserves exist deep within the geopressured zone along the deep water continental shelf of the northern Gulf of Mexico.

  9. Fluid migration in the Eugene Island block 330 area, offshore Louisiana

    SciTech Connect

    Nunn, J.A.; Roberts, S.J.; Cathles, L.M. III; Anderson, R.N.

    1996-12-31

    In a study funded by industry and the Department of Energy, the Global Basins Research Network has imaged fluid flow pathways that charged shallow, hydropressured, Plio-Pleistocene reservoirs in the Eugene Island 330 field, offshore Louisiana. Hydrocarbons appear to be derived from turbidite stacks within the salt withdrawal mini-basin buried deep within the geopressured zone. Fault zones, with pore pressure dependent permeability, provide conduits for episodic expulsion of fluids out of the geopressured zone. Imaging of present day fluid migration was accomplished using multiple three-dimensional seismic surveys done several years apart. Volume processing and attribute analysis algorithms are used to identify seismic amplitude interconnectivity and changes over time that result from active fluid migration. Pressures and temperatures are used to provide rate and timing constraints. Geochemical variability in reservoirs is attributed to mixing of oils. Using detailed hydrostratigraphic information constructed from seismic and well data, we have simulated the episodic expulsion of fluids from the geopressured zone along faults into individual thin sand layers in the overlying hydropressured zone. Our finite element model, Akcess.Basin{trademark}, realistically simulates fluid flow, heat and solute transport and pore pressure dependent permeability of faults and strata. Our results documenting the existence of past and present migration events connecting shallow reservoirs to deep source rocks implies that large, heretofore undiscovered hydrocarbon reserves exist deep within the geopressured zone along the deep water continental shelf of the northern Gulf of Mexico.

  10. A High-Resolution Seismic Survey to Image the top of Salt at Avery Island, Louisiana

    NASA Astrophysics Data System (ADS)

    Standridge, D.; Schneider, R. V.; Bishop, C. E.; Kinsland, G. L.; Serpa, L. F.

    2005-05-01

    We performed a shallow high-resolution 2-D seismic reflection study in an attempt to image the top of the salt dome at Avery Island, Louisiana. The survey was conducted using a 48-channel Geoder system with an Elastic Wave Generatorr (accelerated weight drop surface source) as the source. The purpose is to aid in mine planning by Cargill Salt and in shallow subsurface environmental planning by McIlhenny Co. The processing scheme included, 1) conversion to ProMaxr compatible format, 2) geometry establishment using both GPS and topographic map locations, 3) record truncation and resampling in time, 4) ground roll, air wave and refractor mute, 5) filter testing, design and application (dominant frequency is found to be about 100 Hz), 6) velocity analysis and 7) stacking. The line runs from near the mineshaft down the main road to near the water of the surrounding canal near the flank of the dome. The final stack of the data showed five reflectors at the end of the line nearest the flank of the dome, the most significant reflector having stacking velocities over 2,000 m/s. This indicates the possible presence of salt-cemented sediments similar to those found by studies on Weeks Island. No unambiguous "salt reflector" is identified. It is possible that although the salt is present, the salt-clastic sediment interface does not produce the expected strong reflector perhaps due to a gradational contact or, the salt is, in some areas, too near the surface causing the refraction to interfere with the reflection or the interface is too uneven to be imaged with our survey. Surveys and processing of other designs and/or well data might differentiate between these hypotheses.

  11. Baseline coastal oblique aerial photographs collected from Dauphin Island, Alabama, to Breton Island, Louisiana, August 8, 2012

    USGS Publications Warehouse

    Morgan, Karen L.M.; Westphal, Karen A.

    2014-01-01

    The U.S. Geological Survey (USGS) conducts baseline and storm response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On August 8, 2012, the USGS conducted an oblique aerial photographic survey from Dauphin Island, Alabama, to Breton Island, Louisiana, aboard a Cessna 172 at an altitude of 500 feet (ft) and approximately 1,000 ft offshore. This mission was flown to collect baseline data for assessing incremental changes since the last survey, and the data can be used in the assessment of future coastal change. The images provided here are Joint Photographic Experts Group (JPEG) images. Exiftool was used to add the following to the header of each photo: time of collection, Global Positioning System (GPS) latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact information. The photograph locations are an estimate of the position of the aircraft and do not indicate the location of any feature in the images (see the Navigation Data page). These photographs document the configuration of the barrier islands and other coastal features at the time of the survey. Pages containing thumbnail images of the photographs, referred to as contact sheets, were created in 5-minute segments of flight time. These segements can be found on the Photos and Maps page. Photographs can be opened directly with any JPEG-compatible image viewer by clicking on a thumbnail on the contact sheet. Table 1 provides detailed information about the GPS location, name, date, and time each of the 1241 photographs taken along with links to each photograph. The photography is organized into segments, also referred to as contact sheets, and represent approximately 5 minutes of flight time. (Also see the Photos and Maps page). In addition to the photographs, a Google Earth Keyhole Markup Language (KML) file is provided and can be used to view the images by clicking on the marker and then clicking

  12. Accelerated relative sea-level rise and rapid coastal erosion: Testing a causal relationship for the Louisiana barrier islands

    USGS Publications Warehouse

    List, J.H.; Sallenger, A.H.; Hansen, M.E.; Jaffe, B.E.

    1997-01-01

    The role of relative sea-level rise as a cause for the rapid erosion of Louisiana's barrier island coast is investigated through a numerical implementation of a modified Bruun rule that accounts for the low percentage of sand-sized sediment in the eroding Louisiana shoreface. Shore-normal profiles from 150 km of coastline west of the Mississippi delta are derived from bathymetric surveys conducted during the 1880s. 1930s and 1980s. An RMS difference criterion is employed to test whether an equilibrium profile form is maintained between survey years. Only about half the studied profiles meet the equilibrium Criterion this represents a significant limitation on the potential applicability of the Bruun rule. The profiles meeting the equilibrium criterion, along with measured rates of relative sea-level rise, are used to hindcast shoreline retreat rates at 37 locations within the study area. Modeled and observed shoreline retreat rates show no significant correlation. Thus in terms of the Bruun approach relative sea-level rise has no power for hindcasting (and presumably forecasting) rates of coastal erosion for the Louisiana barrier islands.

  13. Linking hydrologic connectivity and nutrient dynamics in a deltaic island of prograding Wax Lake Delta, coastal Louisiana

    NASA Astrophysics Data System (ADS)

    Sendrowski, A.; Passalacqua, P.; Castaneda-Moya, E.; Twilley, R.

    2016-12-01

    River deltas are self-organizing systems that exhibit complex non-linear dynamics. Deltas consist of highly connected distributary channels and inter-channel islands that exchange fluxes leading to ecologically rich island platforms. Deltaic islands have been suggested as areas of enhanced biological and biogeochemical processing that display high spatial and temporal variability in terms of vegetation succession, island size and shape, and hydroperiod. Nutrient dynamics within an island are influenced by the structural connectivity of channels and islands and the process connectivity between ecohydrologic variables and external geophysical forcings such as river discharge, wind, and tides. The aim of this study is to quantify the connectivity between delta variables and geophysical drivers within an island, with a focus on nutrient dynamics across space and time. Six permanent telemetry platforms installed on an island in Wax Lake Delta, a naturally prograding river delta in coastal Louisiana, measure continuous (March 2014 to present) in situ surface water nitrate, temperature, turbidity, and water level over time, thus covering different river discharge, wind, and tidal conditions. The platforms were installed in different locations within the island to capture the distinct flow paths and vegetation dynamics strongly associated with the Mississippi River flood-pulse season. We quantify the spatial and temporal variability of process connections on nutrient dynamics with information theory, a statistical method that quantifies the information flow between variables. With information theory, we can quantify the direction, strength, timescale of relationships, and the locations of enhanced nitrate processing under variable discharge, wind, and tidal conditions. Distinct spatial patterns emerge in water level and turbidity in response to riverine and tidal forcing that affect nitrate and temperature couplings. Implications for these relationships at the network

  14. Coastal single-beam bathymetry data collected in 2015 from Raccoon Point to Point Au Fer Island, Louisiana

    USGS Publications Warehouse

    Stalk, Chelsea A.; DeWitt, Nancy T.; Kindinger, Jack L.; Flocks, James G.; Reynolds, Billy J.; Kelso, Kyle W.; Fredericks, Joseph J.; Tuten, Thomas M.

    2017-03-10

    As part of the Barrier Island Comprehensive Monitoring Program (BICM), scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore single-beam bathymetry survey along the south-central coast of Louisiana, from Raccoon Point to Point Au Fer Island, in July 2015. The goal of the BICM program is to provide long-term data on Louisiana’s coastline and use this data to plan, design, evaluate, and maintain current and future barrier island restoration projects. The data described in this report will provide baseline bathymetric information for future research investigating island evolution, sediment transport, and recent and long-term geomorphic change, and will support modeling of future changes in response to restoration and storm impacts. The survey area encompasses more than 300 square kilometers of nearshore environment from Raccoon Point to Point Au Fer Island. This data series serves as an archive of processed single-beam bathymetry data, collected from July 22–29, 2015, under USGS Field Activity Number 2015-320-FA. Geographic information system data products include a 200-meter-cell-size interpolated bathymetry grid, trackline maps, and point data files. Additional files include error analysis maps, Field Activity Collection System logs, and formal Federal Geographic Data Committee metadata.

  15. Mississippi River delta plain, Louisiana coast, and inner shelf Holocene geologic framework, processes, and resources

    USGS Publications Warehouse

    Williams, S. Jeffress; Kulp, Mark; Penland, Shea; Kindinger, Jack L.; Flocks, James G.; Buster, Noreen A.; Holmes, Charles W.

    2009-01-01

    Extending nearly 400 km from Sabine Pass on the Texas-Louisiana border east to the Chandeleur Islands, the Louisiana coastal zone (Fig. 11.1) along the north-central Gulf of Mexico is the southern terminus of the largest drainage basin in North America (>3.3 million km2), which includes the Mississippi River delta plain where approximately 6.2 million kilograms per year of sediment is delivered to the Gulf of Mexico (Coleman 1988). The Mississippi River, active since at least Late Jurassic time (Mann and Thomas 1968), is the main distributary channel of this drainage system and during the Holocene has constructed one of the largest delta plains in the world, larger than 30,000 km2 (Coleman and Prior 1980; Coleman 1981; Coleman et al. 1998). The subsurface geology and geomorphology of the Louisiana coastal zone reffects a complex history of regional tectonic events and fluvial, deltaic, and marine sedimentary processes affected by large sea-level fluctuations. Despite the complex geology of the north-central Gulf basin, a long history of engineering studies and Scientific research investigations (see table 11.1) has led to substantial knowledge of the geologic framework and evolution of the delta plain region (see also Bird et al., chapter 1 in this volume). Mississippi River delta plain, Louisiana coast, and inner shelf Holocene geologic framework, processes, and resources. Available from: https://www.researchgate.net/publication/262802561_Mississippi_River_delta_plain_Louisiana_coast_and_inner_shelf_Holocene_geologic_framework_processes_and_resources [accessed Sep 13, 2017].

  16. EAARL Coastal Topography-Eastern Louisiana Barrier Islands, Post-Hurricane Gustav, 2008: First Surface

    USGS Publications Warehouse

    Bonisteel-Cormier, J.M.; Nayegandhi, Amar; Wright, C.W.; Sallenger, A.H.; Brock, J.C.; Nagle, D.B.; Vivekanandan, Saisudha; Fredericks, Xan

    2010-01-01

    These remotely sensed, geographically referenced elevation measurements of lidar-derived first-surface (FS) topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate datasets of a portion of the eastern Louisiana barrier islands, acquired post-Hurricane Gustav (September 2008 hurricane) on September 6 and 7, 2008. The datasets are made available for use as a management tool to research scientists and natural-resource managers. An innovative airborne lidar instrument originally developed at the NASA Wallops Flight Facility, and known as the Experimental Advanced Airborne Research Lidar (EAARL), was used during data acquisition. The EAARL system is a raster-scanning, waveform-resolving, green-wavelength (532-nanometer) lidar designed to map near-shore bathymetry, topography, and vegetation structure simultaneously. The EAARL sensor suite includes the raster-scanning, water-penetrating full-waveform adaptive lidar, a down-looking red-green-blue (RGB) digital camera, a high-resolution multispectral color infrared (CIR) camera, two precision dual-frequency kinematic carrier-phase GPS receivers, and an integrated miniature digital inertial measurement unit, which provide for sub-meter georeferencing of each laser sample. The nominal EAARL platform is a twin-engine Cessna 310 aircraft, but the instrument may be deployed on a range of light aircraft. A single pilot, a lidar operator, and a data analyst constitute the crew for most survey operations. This sensor has the potential to make significant contributions in measuring sub-aerial and submarine coastal topography within cross-environmental surveys. Elevation measurements were collected over the survey area using the EAARL system, and the resulting data were then processed using

  17. Analysis of seafloor change at Breton Island, Gosier Shoals, and surrounding waters, 1869–2014, Breton National Wildlife Refuge, Louisiana

    USGS Publications Warehouse

    Flocks, James G.; Terrano, Joseph F.

    2016-08-01

    Characterizing bathymetric change in coastal environments is an important component in understanding shoreline evolution, especially along barrier island platforms. Bathymetric change is a function of the regional sediment budget, long-term wave and current patterns, and episodic impact from high-energy events such as storms. Human modifications may also cause changes in seafloor elevation. This study, conducted by the U.S. Geological Survey in collaboration with the U.S. Fish and Wildlife Service, evaluates bathymetric and volumetric change and sediment characteristics around Breton Island and Gosier Shoals located offshore of the Mississippi River Delta in Louisiana. This area has been affected by significant storm events such as Hurricane Katrina in 2005. Sedimentation patterns at Breton Island and offshore have also been modified by the excavation of a shipping channel north of the island. Four time periods are considered that encompass these episodes and include long-term change and short-term storm recovery: 1869–2014, 1869–1920, 1920–2014, and 2007–2014. Finally, sediment characteristics are reported in the context of seafloor elevation.

  18. Recovery of a Deltaic Barrier Island to hurricane and oil spill impacts in coastal Louisiana. Final report, 1 June 1993-31 August 1994

    SciTech Connect

    Debusschere, K.; Lindstedt, D.; Mendelssohn, I.A.; Tao, Q.; Lin, Q.

    1994-11-01

    The goal of this project was to evaluate the effects of the 1992 Greenhill Petroleum Corporation Oil Spill and Hurricane Andrew on salt marsh recovery on East Timbalier Island, in coastal Louisiana. The landscape scale analysis relied on remote sensing/image analysis procedures and field surveys. The community scale analysis required quantitative field sampling for vegetative responses. Both types of analyses showed that the oil spill had minimal effect on island vegetation. The analysis also indicated that Hurricane Andrew had a profound effect on the island. The island`s land mass decreased by 25% between 1990 and 1992 and its previously continuous shoreline became fragmented after the hurricane. One year after hurricane impact, the island`s morphology changed significantly due to sediment reworking.

  19. Health hazard evaluation report HETA 88-391-2156, Morton Salt Company, Weeks Island, Louisiana. (Revised April 1993)

    SciTech Connect

    Ferguson, R.P.; Knutti, E.B.

    1993-04-01

    In response to a request from the International Chemical Workers Union, an investigation was made of exposures to asbestos and diesel emissions at the Morton Salt Company, Weeks Island, Louisiana. The most significant source of particulates was diesel exhaust. None of the 20 personal breathing zone or area air samples collected in the mill exceeded limits for asbestos. An increased prevalence of chronic cough and phlegm was reported by workers. More complaints of eye irritation and tearing of the eyes were noted in underground workers, consistent with diesel byproduct exposure. Pulmonary function studies indicated that four workers had mild obstructive lung disease and one had moderate obstructive lung disease. Three workers with mild restriction of lung volume were also noted. None of the 61 chest films taken was positive for pneumoconiosis. The authors conclude that a potential hazard existed from exposure to diesel exhaust.

  20. Sediment capture in flood plains of the Mississippi River: A case study in Cat Island National Wildlife Refuge, Louisiana

    NASA Astrophysics Data System (ADS)

    Smith, M.; Bentley, S. J., Sr.

    2015-03-01

    To plan restoration of the Mississippi River Delta, it is imperative to know how much sediment the Mississippi River currently provides. Recent research has demonstrated that between Tarbert Landing and St Francisville on the Mississippi, as much as 67 million metric tons (Mt) per year is lost from river transport, of which ~16 Mt is muddy suspended sediment. So where does this sediment go? Two pathways for loss have been proposed: riverbed storage, and overbank deposition in regions that lack manmade levées. Cat Island National Wildlife Refuge, on the unleveed Mississippi River east bank near St Francisville, Louisiana, consists of undisturbed bottomland forest that is inundated most years by river flooding. To determine fluvial sediment accumulation rates (SAR) from flooding, pushcores 40-50 cm long were collected then dated by Pb-210 and Cs-137 geochronology. Preliminary data suggests that muddy sediment accumulation is 10-13% of muddy suspended sediment lost from river transport along this river reach.

  1. Summary of events and geotechnical factors leading to decommissioning of the Strategic Petroleum Reserve (SPR) facility at Weeks Island, Louisiana

    SciTech Connect

    Neal, J.T.; Bauer, S.J.; Ehgartner, B.L.

    1996-10-01

    A sinkhole discovered over the edge of the Strategic Petroleum Reserve storage facility at Weeks Island salt dome, Louisiana, led to decommissioning the site during 1995--1998, following extensive diagnostics in 1994. The sinkhole resulted from mine-induced fractures in the salt which took may years to develop, eventually causing fresh water to leak into the storage chamber and dissolve the overlying salt, thus causing overburden collapse into the void. Prior to initiating the oil removal, a freeze wall was constructed at depth around the sinkhole in 1995 to prevent water inflow; a freeze plug will remain in place until the mine is backfilled with brine in 1997--8, and stability is reached. Residual oil will be removed; environmental monitoring has been initiated and will continue until the facility is completely plugged and abandoned, and environmental surety is achieved.

  2. Massive sediment bypassing on the lower shoreface offshore of a wide tidal inlet - Cat Island Pass, Louisiana

    USGS Publications Warehouse

    Jaffe, B.E.; List, J.H.; Sallenger, A.H.

    1997-01-01

    Analysis of a series of historical bathymetric and shoreline surveys along the Louisiana coast west of the Mississippi River mouth detected a large area of deposition in water depths of 2.0-8.5 m offshore of a 9-km- wide tidal inlet, the Cat Island Pass/Wine Island Pass system. A 59.9 ?? 106 m3 sandy deposit formed from the 1930s-1980s, spanning 27 km in the alongshore direction, delineating the transport pathway for sediment bypassing offshore of the inlet on the shoreface. Bypassing connected the shorefaces of two barrier island systems, the Isles Dernieres and the Bayou Lafourche. The processes responsible for formation of this deposit are not well understood, but sediment-transport modeling suggests that sediment is transported primarily by wind-driven coastal currents during large storms and hurricanes. Deposition appears to be related to changes in shoreline orientation, closing of transport pathways into a large bay to the east and the presence of tidal inlets. This newly documented type of bypassing, an offshore bypassing of the inlet system, naturally nourished the immediate downdrift area, the eastern Isles Dernieres, where shoreface and shoreline erosion rates are about half of pre-bypassing rates. Erosion rates remained the same farther downdrift, where bypassing has not yet reached. As this offshore bypassing continues, the destruction of the Isles Dernieres will be slowed.

  3. USGS reports latest land-water changes for southeastern Louisiana

    USGS Publications Warehouse

    Barras, John A.; Johnston, James B.

    2006-01-01

    The USGS National Wetlands Research Center is reporting that a total of 118 square miles of land has been transformed to new water areas in a 9,742 square mile area from the Chandeleur Islands to the Atchafalaya River. This area encompasses the basins of Breton Sound, Mississippi River, Pearl River, Pontchartrain, Barataria, Terrebonne and the western quarter of the Atchafalaya basin.

  4. 4D seismic monitoring technologies, and their application to the Eugene Island 330 field of offshore Louisiana

    SciTech Connect

    Anderson, R.N.; Boulanger, A.; Wei, H.; Liqing, X. )

    1996-01-01

    We have developed 4D volume processing and attribute analysis algorithms to identify significant seismic changes over time that result from drainage of oil and gas within reservoirs. The 4D seismic monitoring methodology merges the computational simulation of expected changes in acoustic reflectivity from drainage with the observed snapshots of the real reservoir impedance changes. We demonstrate its utility in the Eugene Island 330 field of offshore Louisiana, where 4 generations of 3D seismic surveys have been acquired; fire in 1985, then in 1988, 1992 and again in 1994. These datasets contain seismic snapshots of the field as it has been drained of more than 100 million barrels of oil equivalents. Dim-outs were detected where production depleted oil and gas, and amplitude increases were observed where secondary gas caps formed. The [open quotes]oil/water contact[close quotes] movement was also detected by the 4D technique. When combined with active pressure and temperature monitoring, production history matching, and Sw changes detected in cased-hole pulsed-neutron logs, 4D seismic imaging of producing fields promises to allow real-time production control in the future.

  5. 4D seismic monitoring technologies, and their application to the Eugene Island 330 field of offshore Louisiana

    SciTech Connect

    Anderson, R.N.; Boulanger, A.; Wei, H.; Liqing, X.

    1996-12-31

    We have developed 4D volume processing and attribute analysis algorithms to identify significant seismic changes over time that result from drainage of oil and gas within reservoirs. The 4D seismic monitoring methodology merges the computational simulation of expected changes in acoustic reflectivity from drainage with the observed snapshots of the real reservoir impedance changes. We demonstrate its utility in the Eugene Island 330 field of offshore Louisiana, where 4 generations of 3D seismic surveys have been acquired; fire in 1985, then in 1988, 1992 and again in 1994. These datasets contain seismic snapshots of the field as it has been drained of more than 100 million barrels of oil equivalents. Dim-outs were detected where production depleted oil and gas, and amplitude increases were observed where secondary gas caps formed. The {open_quotes}oil/water contact{close_quotes} movement was also detected by the 4D technique. When combined with active pressure and temperature monitoring, production history matching, and Sw changes detected in cased-hole pulsed-neutron logs, 4D seismic imaging of producing fields promises to allow real-time production control in the future.

  6. Processes controlling the retreat of the Isles Dernieres, a Louisiana barrier-island chain

    USGS Publications Warehouse

    Dingler, John R.; Reiss, Thomas E.

    1991-01-01

    The Isles Dernieres is a low-lying, transgressive barrier-island chain situated about 150 km west of the modern Mississippi delta. Much of the Isles Dernieres consists of highly dissected salt-marsh muds that lie at or slightly above sea level and are covered by a veneer of sand along the shoreline facing the Gulf of Mexico. Maximum berm elevations are generally less than 1.5 m above mean sea level. Since the mid-1800s, the initial island has been fragmented into four islands, and the beach face has retreated landward at a rate of more than 10 m/yr. The dominant processes controlling degradation of the chain are cold fronts that pass through the area several times each year and occasional hurricanes. Beach surveys over a 2-year period on the Isles Dernieres document irreversible beach-face retreat in conjunction with multiple cold fronts and one major hurricane (Gilbert). Although both the hurricane and the cold fronts caused the island to erode, the erosional patterns of the two storm types differed from each other. During the two years, over 60 cold fronts collectively caused about 37 m of beach-face retreat, whereas Gilbert itself produced more than 40 m of retreat. A major difference between the two storm types was in the percentage of washover sand produced by each. Commonly, the cold fronts did not create enough of a storm surge to overtop the berm, so most of the material removed from the beach face must have moved offshore or alongshore. Gilbert, in contrast, inundated the study site, and essentially all the sand removed from the beach face moved to the backshore.

  7. Controls on location of sand-mud contact beneath barrier island: Central Isles Dernieres, Louisiana

    SciTech Connect

    Dingler, J.R.; Reiss, T.E. )

    1989-09-01

    The Isles Dernieres is a transgressive barrier island arc situated about 150 km west of the modern Mississippi delta. Since the mid-1800s, the islands of the Isles Dernieres arc have undergone extensive fragmentation and area loss, and the entire beach face has migrated landward at an average rate that exceeds 10 m/year. Much of the Isles Dernieres consists of highly dissected, salt-marsh muds, lying at or slightly above sea level and covered by a veneer of sand along the gulf shoreline. Cores taken across the gulf side of the island from the marsh to the nearshore show that the sand-mud contact is nearly horizontal under the back of the beach, and sand bars lie on a gently sloping muddy bottom seaward of the beach face. Between those two nearly horizontal surfaces, the contact dips seaward. The difference in elevation between the muddy surface behind the beach and the toe of the beach is approximately 2 m. Earlier work suggested that the contact begins dipping under the berm crest, presumably as a result of compaction of the muddy deposits by the sand overburden. Because the location of the sand-mud contact is important in calculating the volumetric decrease of an island during storms, they collected core and probe data along several shore-normal transects to map the contact in a central part of the Isles Dernieres. Analysis of that data shows that the point where the contact begins to slope seaward is not fixed relative to the berm crest; rather it varies from the beach face to the backshore. Although compression of the marsh deposits may be a factor, the location of bayous and lakes may be more important in controlling the elevation of the contact. Thus, where the overwashed sand has filled in a depression in the marsh, the contact will be low; where there is no depression, the contact will be high, and muddy deposits can even crop out on the beach face.

  8. Baseline coastal oblique aerial photographs collected from Breton Island, Louisiana, to the Alabama-Florida border, July 13, 2013

    USGS Publications Warehouse

    Morgan, Karen L.M.; Westphal, Karen A.

    2014-01-01

    The U.S. Geological Survey (USGS) conducts baseline and storm response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On July 13, 2013, the USGS conducted an oblique aerial photographic survey from Breton Island, Louisiana, to the Alabama-Florida border, aboard a Cessna 172 flying at an altitude of 500 feet (ft) and approximately 1,000 ft offshore. This mission was flown to collect baseline data for assessing incremental changes since the last survey, and the data can be used in the assessment of future coastal change. The images provided here are Joint Photographic Experts Group (JPEG) images. ExifTtool was used to add the following to the header of each photo: time of collection, Global Positioning System (GPS) latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact information. The photograph locations are an estimate of the position of the aircraft and do not indicate the location of any feature in the images (see the Navigation Data page). These photographs document the configuration of the barrier islands and other coastal features at the time of the survey. Pages containing thumbnail images of the photographs, referred to as contact sheets, were created in 5-minute segments of flight time. These segements can be found on the Photos and Maps page. Photographs can be opened directly with any JPEG-compatible image viewer by clicking on a thumbnail on the contact sheet. Table 1 provides detailed information about the GPS location, name, date, and time each of the 1242 photographs taken along with links to each photograph. The photography is organized into segments, also referred to as contact sheets, and represent approximately 5 minutes of flight time. (Also see the Photos and Maps page). In addition to the photographs, a Google Earth Keyhole Markup Language (KML) file is provided and can be used to view the images by clicking on the marker and then

  9. Baseline coastal oblique aerial photographs collected from Pensacola, Florida, to Breton Islands, Louisiana, February 7, 2012

    USGS Publications Warehouse

    Morgan, Karen L.M.; Krohn, M. Dennis; Doran, Kara; Guy, Kristy K.

    2013-01-01

    The U.S. Geological Survey (USGS) conducts baseline and storm response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms (Morgan, 2009). On February 7, 2012, the USGS conducted an oblique aerial photographic survey from Pensacola, Fla., to Breton Islands, La., aboard a Piper Navajo Chieftain at an altitude of 500 feet (ft) and approximately 1,000 ft offshore. This mission was flown to collect baseline data for assessing incremental changes since the last survey, and the data can be used in the assessment of future coastal change. The photographs provided here are Joint Photographic Experts Group (JPEG) images. The photograph locations are an estimate of the position of the aircraft and do not indicate the location of the feature in the images (see the Navigation Data page). These photos document the configuration of the barrier islands and other coastal features at the time of the survey. The header of each photo is populated with time of collection, Global Positioning System (GPS) latitude, GPS longitude, GPS position (latitude and longitude), keywords, credit, artist (photographer), caption, copyright, and contact information using EXIFtools (Subino and others, 2012). Photographs can be opened directly with any JPEG-compatible image viewer by clicking on a thumbnail on the contact sheet. Table 1 provides detailed information about the assigned location, name, data, and time the photograph was taken along with links to the photograph. In addition to the photographs, a Google Earth Keyhole Markup Language (KML) file is provided and can be used to view the images by clicking on the marker and then clicking on either the thumbnail or the link above the thumbnail. The KML files were created using the photographic navigation files (see the Photos and Maps page).

  10. Post-Hurricane Isaac coastal oblique aerial photographs collected along the Alabama, Mississippi, and Louisiana barrier islands, September 2–3, 2012

    USGS Publications Warehouse

    Morgan, Karen L. M.; Karen A. Westphal,

    2016-04-21

    The U.S. Geological Survey (USGS), as part of the National Assessment of Coastal Change Hazards project, conducts baseline and storm-response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms (Morgan, 2009). On September 2-3, 2012, the USGS conducted an oblique aerial photographic survey along the Alabama, Mississippi, and Louisiana barrier islands aboard a Cessna 172 (aircraft) at an altitude of 500 feet (ft) and approximately 1,000 ft offshore. This mission was flown to collect post-Hurricane Isaac data for assessing incremental changes in the beach and nearshore area since the last survey, flown in September 2008 (central Louisiana barrier islands) and June 2011 (Dauphin Island, Alabama, to Breton Island, Louisiana), and the data can be used in the assessment of future coastal change.The photographs provided in this report are Joint Photographic Experts Group (JPEG) images. ExifTool was used to add the following to the header of each photo: time of collection, Global Positioning System (GPS) latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact information. The photograph locations are an estimate of the position of the aircraft at the time the photograph was taken and do not indicate the location of any feature in the images (see the Navigation Data page). These photographs document the state of the barrier islands and other coastal features at the time of the survey. Pages containing thumbnail images of the photographs, referred to as contact sheets, were created in 5-minute segments of flight time. These segments can be found on the Photos and Maps page. Photographs can be opened directly with any JPEG-compatible image viewer by clicking on a thumbnail on the contact sheet.In addition to the photographs, a Google Earth Keyhole Markup Language (KML) file is provided and can be used to view the images by clicking on the marker and then clicking on

  11. Prediction of barrier island restoration response and its interactions with the natural environment

    NASA Astrophysics Data System (ADS)

    Plant, N. G.; Stockdon, H. F.; Flocks, J.; Sallenger, A. H.; Long, J. W.; Cormier, J. M.; Guy, K.; Thompson, D. M.

    2012-12-01

    A 2-meter high sand berm was constructed along Chandeleur Island, Louisiana, in an attempt to provide protection against the Deepwater Horizon oil spill. Berm construction started in June 2010 and ended in April 2011. Variations in both island morphology and construction of the 15-km long berm resulted in the development of four different morphologies: a berm built on a submerged island platform to the north of the existing island, a berm built seaward of the existing island, a berm built along the island shoreline, and portions of the island where no berm was constructed. These different morphologies provide a natural laboratory for testing the understanding of berm and barrier island response to storms. In particular, the ability to predict berm evolution using statistical modeling of the interactions between the island, berm, and oceanographic processes was tested. This particular test was part of a broader USGS research effort to understand processes that bridge the gap between short-term storm response and longer-term geologic and climate interactions that shape barrier-island systems. Berm construction and subsequent berm and island evolution were monitored using satellite and aerial remote sensing and topographic and bathymetric surveys. To date, significant berm evolution occurred in both the north (including terminal erosion, overwash, and a large breach), center (overwash and numerous breaches), and south (overwash). The response of the central portion of the berm to winter and tropical storms was significant such that none of the residual berm remained within its construction footprint. The evolution of the central portion of the berm was well predicted using a statistical modeling approach that used predicted and modeled wave conditions to identify the likelihood of overwash events. Comparison of different modeled evolution scenarios to the one that was observed showed that berm response was sensitive to the frequency and severity of winter and tropical

  12. Numerical simulation of a low-lying barrier island's morphological response to Hurricane Katrina

    USGS Publications Warehouse

    Lindemer, C.A.; Plant, N.G.; Puleo, J.A.; Thompson, D.M.; Wamsley, T.V.

    2010-01-01

    Tropical cyclones that enter or form in the Gulf of Mexico generate storm surge and large waves that impact low-lying coastlines along the Gulf Coast. The Chandeleur Islands, located 161. km east of New Orleans, Louisiana, have endured numerous hurricanes that have passed nearby. Hurricane Katrina (landfall near Waveland MS, 29 Aug 2005) caused dramatic changes to the island elevation and shape. In this paper the predictability of hurricane-induced barrier island erosion and accretion is evaluated using a coupled hydrodynamic and morphodynamic model known as XBeach. Pre- and post-storm island topography was surveyed with an airborne lidar system. Numerical simulations utilized realistic surge and wave conditions determined from larger-scale hydrodynamic models. Simulations included model sensitivity tests with varying grid size and temporal resolutions. Model-predicted bathymetry/topography and post-storm survey data both showed similar patterns of island erosion, such as increased dissection by channels. However, the model under predicted the magnitude of erosion. Potential causes for under prediction include (1) errors in the initial conditions (the initial bathymetry/topography was measured three years prior to Katrina), (2) errors in the forcing conditions (a result of our omission of storms prior to Katrina and/or errors in Katrina storm conditions), and/or (3) physical processes that were omitted from the model (e.g., inclusion of sediment variations and bio-physical processes). ?? 2010.

  13. Effects of Building a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on Louisiana Marshes

    USGS Publications Warehouse

    Lavoie, Dawn; Flocks, James G.; Kindinger, Jack G.; Sallenger, A.H.; Twichell, David C.

    2010-01-01

    The State of Louisiana requested emergency authorization on May 11, 2010, to perform spill mitigation work on the Chandeleur Islands and on all the barrier islands from Grand Terre Island eastward to Sandy Point to enhance the capability of the islands to reduce the movement of oil from the Deepwater Horizon oil spill to the marshes. The proposed action-building a barrier berm (essentially an artificial island fronting the existing barriers and inlets) seaward of the existing barrier islands and inlets-'restores' the protective function of the islands but does not alter the islands themselves. Building a barrier berm to protect the mainland wetlands from oil is a new strategy and depends on the timeliness of construction to be successful. Prioritizing areas to be bermed, focusing on those areas that are most vulnerable and where construction can be completed most rapidly, may increase chances for success. For example, it may be easier and more efficient to berm the narrow inlets of the coastal section to the west of the Mississippi River Delta rather than the large expanses of open water to the east of the delta in the southern parts of the Breton National Wildlife Refuge (NWR). This document provides information about the potential available sand resources and effects of berm construction on the existing barrier islands. The proposed project originally involved removing sediment from a linear source approximately 1 mile (1.6 km) gulfward of the barrier islands and placing it just seaward of the islands in shallow water (~2-m depth where possible) to form a continuous berm rising approximately 6 feet (~2 m) above sea level (North American Vertical Datum of 1988-NAVD88) with an ~110-yd (~100-m) width at water level and a slope of 25:1 to the seafloor. Discussions within the U.S. Geological Survey (USGS) and with others led to the determination that point-source locations, such as Hewes Point, the St. Bernard Shoals, and Ship Shoal, were more suitable 'borrow

  14. Cold-front driven storm erosion and overwash in the central part of the Isles Dernieres, a Louisiana barrier-island arc

    USGS Publications Warehouse

    Dingler, J.R.; Reiss, T.E.

    1990-01-01

    Tropical and extratropical storms produce significant erosion on the barrier islands of Louisiana. Over the past 100 years, such storms have produced at least 2 km of northward beach-face retreat and the loss of 63% of the surface area of the Isles Dernieres, a low-lying barrier-island arc along the central Louisiana coast. Elevations on the islands within the arc are typically less than 2 m above mean sea level. The islands typically have a washover-flat topography with occasional, poorly developed, dune-terrace topography consisting of low-lying and broken dunes. The central part of the arc consists of salt-marsh deposits overlain by washover sands along the Gulf of Mexico shoreline. Sand thicknesses range from zero behind the beach, to less than 2 m under the berm crest, and back to zero in the first nearshore trough. The sand veneer is sufficiently thin that storms can strip all the sand from the beach face, exposing the underlying marsh deposits. The geomorphic changes produced by cold fronts, a type of extratropical storm that commonly affect the Isles Dernieres between late fall and early spring are described. Between August 1986 and September 1987, repeated surveys along eleven shore-normal transects that covered 400 m of shoreline revealed the timing and extent of cold-front-produced beach change along a typical section of the central Isles Dernieres. During the study period, the beach face retreated approximately 20 m during the cold-front season but did not rebuild during the subsequent summer. Because the volume of sand deposited on the backshore (5600 m3) was less than the volume of material lost from the beach face (19,200 m3), approximately 13,600 m3 of material disappeared. Assuming that underlying marsh deposits decrease in volume in direct proportion to the amount of beach-face retreat, an estimate of the mud loss during the study period is 14,000 m3. Thus, the decrease in volume along the profiles can be accounted for without removing any sand

  15. Nested modeling approach to quantify sediment transport pathways and temporal variability of barrier island evolution

    NASA Astrophysics Data System (ADS)

    Long, J. W.; Dalyander, S.; Sherwood, C. R.; Thompson, D. M.; Plant, N. G.

    2012-12-01

    The Chandeleur Islands, situated off the coast of Louisiana in the Gulf of Mexico, comprise a sand-starved barrier island system that has been disintegrating over the last decade. The persistent sediment transport in this area is predominantly directed alongshore but overwash and inundation during storm conditions has fragmented the island and reduced the subaerial extent by almost 75% since 2001. From 2010-2011 a sand berm was constructed along the Gulf side of the island adding 20 million cubic yards of sediment to this barrier island system. The redistribution of this sediment, particularly whether it remains in the active system and progrades the barrier island, has been evaluated using a series of numerical models and an extensive set of in situ and remote sensing observations. We have developed a coupled numerical modeling system capable of simulating morphologic evolution of the sand berm and barrier island using observations and predictions of regional and nearshore oceanographic processes. A nested approach provides large scale oceanographic information to force island evolution in a series of smaller grids, including two nearshore domains that are designed to simulate (1) the persistent alongshore sediment transport O(months-years) and (2) the overwash and breaching of the island/berm due to cross-shore forcing driven by winter cold fronts and tropical storms (O(hours-days)). The coupled model is evaluated using the observations of waves, water levels, currents, and topographic/morphologic change. Modeled processes are then used to identify the dominant sediment transport pathways and quantify the role of alongshore and cross-shore sediment transport in evolving the barrier island over a range of temporal scales.

  16. Use of Strategic Placement of Dredged Sediments to Support Horseshoe Island in the Atchafalaya River, Louisiana: A Preliminary Ecological Survey

    DTIC Science & Technology

    2014-08-01

    strategically placed dredged sediments (i.e., Horseshoe Bend Island) located within the Atchafalaya River. The practice of strategically placing dredged... sediments upriver of a naturally- occurring island was conducted with the intent of aiding the islands growth to produce greater environmental benefits than...District (MVN). ERDC TN-EWN-14-4 August 2014 Use of Strategic Placement of Dredged Sediments to Support Horseshoe Island in the Atchafalaya River

  17. Underwater Cultural Resources Survey of the Houma Navigation Canal, Cat Island Pass Channel Realignment, Terrebonne Parish, Louisiana

    DTIC Science & Technology

    1998-04-01

    Preservation, National Park Service, Washington, D. C. Davis, Donald W. 1973 Louisiana Canals and Their Influence on Wetland Development. Ph.D...Prepared for Tenneco Gas, Houston, Texas. Hoyt, Steven D. 1990 National Register Assessment of the SS Mary, Port Aransas Nueces County, Texas. Espey...professional standards and guidelines including, but not limited to: •the National Park Service’s National Register Bulletin 15 entitled, "How to

  18. Monitoring the exchanges of water, solids, and solutes between channels and islands of Wax Lake Delta, Louisiana: Key to defining the resiliency of this coastal environment

    NASA Astrophysics Data System (ADS)

    Mohrig, D. C.; Hiatt, M. R.; Piliouras, A.; Shaw, J. B.; Wagner, R. W.; Passalacqua, P.; Kim, W.

    2014-12-01

    Deltas are typically treated as binary systems composed of a channel network and the land separating adjacent channels. Field studies of these systems have tended to focus on collecting data either from the channels or from the land, and by doing so have missed a central characteristic of deltas, the connectedness between the land and channels. We propose that the resiliency of any delta can only be accurately assessed if the naturally occurring exchanges of fluid, solids and solutes between the channels and islands (neighboring land) are understood. These exchanges control the growth of land via the deposition of sediment and accumulation of plant biomass, and also affect delta ecology by mediating water temperature and solute concentrations. The deposition of sediment and organic material in turn influences future growth and pattern development for the deltaic channel network. Exchanges between channelized flow in the delta network and the more distributed flow over submerged island tops is currently being monitored and studied at an NSF-funded observatory under development at Wax Lake Delta, Louisiana. Characterization of flow in distributary channels and on island tops reveals that a considerable fraction of water originally travelling in the large channels is transferred onto island tops either through focused entry points (tie channels) or via distributed flow through island-bounding levees. These volume transfer fractions range between 10 and 60 percent, and are sensitive to location within the delta, as well as river discharge, tides, and winds. Island tops develop tributary-like networks through which the fluid, solids, and solutes drain back into adjacent channels or drain out of the system at the front of the delta, in between the mouths of primary distributary channels. Characteristic fluid velocities vary over roughly two orders of magnitude (centimeter- to meter-per-second) depending on whether a fluid parcel is located in shallow laterally unconfined

  19. EAARL Coastal Topography—Louisiana, Alabama, and Florida, June 2008

    USGS Publications Warehouse

    Long, Joseph W.; Morgan, Karen L. M.; Doran, Kara

    2016-01-01

    This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a June 24, 2008 airborne lidar survey for the Chandeleur Islands, LA, Dauphin Island, AL, Santa Rosa Island, FL, and Bon Secour, AL. Elevation measurements were collected over the area using the National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography.

  20. Preliminary assessments of the occurrence and effects of utilization of sand and aggregate resources of the Louisiana inner shelf

    USGS Publications Warehouse

    Suter, J.R.; Mossa, J.; Penland, S.

    1989-01-01

    Louisiana is experiencing the most critical coastal erosion and land loss problem in the United States. Shoreline erosion rates exceed 6 m/yr in more than 80% of the Louisiana coastal zone and can be up to 50 m/yr in areas impacted by hurricanes. The barrier islands have decreased in area by some 40% since 1880. Land loss from coastal marshlands and ridgelands from both natural and human-induced processes is estimated to exceed 100 km2/yr. In response, a two-phase plan has been established, calling for barrier-island restoration and beach nourishment, both requiring large amounts of sand. The plan will be cost-effective only if sand can be found offshore in sufficient quantities close to project sites. To locate such deposits, the Louisiana Geological Survey is conducting an inventory of nearshore sand resources on the Louisiana continental shelf. Exploration for offshore sand deposits is conducted in two phases, with high-resolution seismic reflection profiling to locate potential sand bodies followed by vibracoring to confirm seismic intepretations and obtain samples for textural characterization. As part of the initial stages of the program, reconnaissance high-resolution seismic investigations of three areas of the continental shelf representing different stages in the evolutionary sequence of barrier shorelines were carried out. The Timbalier Islands, flanking barriers of the eroding Caminada-Moreau headland, contain potential sand resources associated with buried tidal and distributary channels. The Chandeleur Islands, a barrier-island arc, have potential offshore sands in the form of truncated spit and tidal inlet deposits, submerged beach ridges, and distributary channels. Trinity Shoal, an inner shelf shoal, is an offshore feature containing up to 2 ?? 109 m3 of material, most of which is probably fine sand. These reconnaissance surveys have demonstrated the occurrence of sand resources on the Louisiana continental shelf. Utilization of such deposits for

  1. Foraging behavior of redheads (Aythya americana) wintering in Texas and Louisiana

    USGS Publications Warehouse

    Woodin, M.C.; Michot, T.C.

    2006-01-01

    Redheads, Aythya americana, concentrate in large numbers annually in traditional wintering areas along the western and northern rim of the Gulf of Mexico. Two of these areas are the Laguna Madre of Texas and Chandeleur Sound of Louisiana. We collected data on 54,340 activities from 103 redhead flocks in Texas and 51,650 activities from 57 redhead flocks in Louisiana. Males and females fed similarly, differing neither in levels of feeding (percent of all birds in flock that were feeding) (p>0.90) nor in percentages of birds feeding by diving, tipping, dipping, or gleaning from the surface (p>0.10). The foraging level of redheads in the upper Laguna Madre region was relatively constant throughout two winters. Foraging of redheads in early winter in Louisiana was significantly greater than redhead foraging in the upper Laguna Madre, but by late winter, foraging by redheads in Louisiana had declined to the same level as that shown by redheads foraging in the upper Laguna Madre. The overall foraging level of redheads from Chandeleur Sound was greater (41%) than that of redheads in the upper Laguna Madre (26%), yet it was quite similar to the 46% foraging level reported for redheads from the lower Laguna Madre. Redheads in the upper Laguna Madre region of Texas fed more by diving than did those in the Chandeleur Sound and the lower Laguna Madre. Diving increased in frequency in late winter. Greater reliance by redheads on diving in January and February indicates that the birds altered their foraging to feed in deeper water, suggesting that the large concentrations of redheads staging at this time for spring migration may have displaced some birds to alternative foraging sites. Our results imply that the most likely period for food resources to become limiting for wintering redheads is when they are staging in late winter. ?? Springer 2006.

  2. Mine-induced sinkholes over the U.S. Strategic Petroleum Reserve (SPR) Storage Facility at Weeks Island, Louisiana: geological mitigation and environmental monitoring

    SciTech Connect

    Neal, J.T.

    1997-03-01

    A sinkhole formed over the former salt mine used for crude oil storage by the U.S. Strategic Petroleum Reserve at Weeks Island, Louisiana. This created a dilemma because in-mine grouting was not possible, and external grouting, although possible, was impractical. However, environmental protection during oil withdrawal and facility decommissioning was considered critical and alternative solutions were essential. Mitigation of, the sinkhole growth over the salt mine was accomplished by injecting saturated brine directly into the sinkhole throat, and by constructing a cylindrical freeze curtain around and into the dissolution orifice at the top of the salt dome. These measures vastly reduced the threat of major surface collapse around the sinkhole during oil transfer and subsequent brine backfill. The greater bulk of the crude oil was removed from the mine during 1995-6. Final skimming operations will remove residual oil trapped in low spots, concurrent with initiating backfill of the mine with saturated brine. Environmental monitoring during 1995-9 will assure that environmental surety is achieved.

  3. Erosion and deterioration of the Isles Dernieres Barrier Island Arc, Louisiana, U.S.A.: 1853 to 1988

    USGS Publications Warehouse

    McBride, Randolph A.; Penland, Shea; Jaffe, Bruce E.; Williams, S. Jeffress; Sallenger, Asbury H.; Westphal, Karen A.

    1989-01-01

    Using cartographic and aerial photography data from the years 1853, 1890, 1934, 1956, 1978, 1984, and 1988, shoreline change maps of the Isles Dernieres barrier island arc were constructed. These data were accurately superimposed, using a computer mapping system, which removed projection, datum, scale, and other cartographic inconsistencies. Linear, areal, and perimeter measurements indicate that the Isles Dernieres are suffering rapid rates of coastal erosion, land loss, and breakup. Bayside and gulfside erosion, in combination with sediment shortage and subsidence, have caused the Isles Dernieres to narrow through time. In addition, the core of the barrier island arc does not migrate landward and instead, breaks up in place as a result of inlet breaching and development. This is in contrast to other models of landward barrier island migration during transgression. If these trends continue, the Isles Dernieres will likely evolve into a subaqueous inner-shelf shoal by the early 21st century. Loss of the Isles Dernieres barrier island arc will severely impact the Terrebonne parish estuary, resulting in decreased environmental quality and increased public risk from storms and hurricanes.

  4. Forest statistics for Louisiana Parishes

    Treesearch

    Dennis M. May; Daniel F. Bertelson

    1986-01-01

    The southern Forest survey, an activity of the Southern Forest Experiment Station Forest Inventory and Analysis work unit, covers the states of Alabama, Arkansas, Louisiana, Mississippi, Oklahoma, Tennessee, East Texas and the Island of Puerto Rico. This survey is part of the nationwide Forest Survey originally authorized by the McSweeney-McNary Act of 1928. More...

  5. ATM Coastal Topography - Louisiana, 2001: UTM Zone 16 (Part 2 of 2)

    USGS Publications Warehouse

    Yates, Xan; Nayegandhi, Amar; Brock, John C.; Sallenger, Asbury H.; Klipp, Emily S.; Wright, C. Wayne

    2009-01-01

    These remotely sensed, geographically referenced elevation measurements of lidar-derived first-surface (FS) topography were produced collaboratively by the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate datasets of a portion of the Louisiana coastline beach face within UTM Zone 16, from Grand Isle to the Chandeleur Islands, acquired September 7 and 9, 2001. The datasets are made available for use as a management tool to research scientists and natural-resource managers. An innovative scanning lidar instrument originally developed by NASA, and known as the Airborne Topographic Mapper (ATM), was used during data acquisition. The ATM system is a scanning lidar system that measures high-resolution topography of the land surface and incorporates a green-wavelength laser operating at pulse rates of 2 to 10 kilohertz. Measurements from the laser-ranging device are coupled with data acquired from inertial navigation system (INS) attitude sensors and differentially corrected global positioning system (GPS) receivers to measure topography of the surface at accuracies of +/-15 centimeters. The nominal ATM platform is a Twin Otter or P-3 Orion aircraft, but the instrument may be deployed on a range of light aircraft. Elevation measurements were collected over the survey area using the ATM system, and the resulting data were then processed using the Airborne Lidar Processing System (ALPS), a custom-built processing system developed in a NASA-USGS collaboration. ALPS supports the exploration and processing of lidar data in an interactive or batch mode. Modules for presurvey flight-line definition, flight-path plotting, lidar raster and waveform investigation, and digital camera image playback have been developed. Processing algorithms have been developed to extract the range to the first and

  6. Adaptation to the Dynamic Coastal Areas Affected by the Atchafalaya Basin Outlets: an Historical Geography Analysis South Central Louisiana

    DTIC Science & Technology

    2005-04-01

    12 miles (19 km) long. Nevertheless, Last Island (Isle Dernieres), Timbalier, Grand Isle, Grande Terre , and the Chandeleur chain fringe the coast and...protect the delicate, saltwater-sensitive alluvial wetlands. Last Island, Cheniere Caminada, Grand Isle, and Grande Terre have colorful histories...levels. " Terre -Bonne," French for "Good Earth," is perhaps an easy way to introduce the agricultural potential within the region. Historically sugarcane

  7. Surficial sediment character of the Louisiana offshore continental shelf region: a GIS compilation

    USGS Publications Warehouse

    Williams, S. Jeffress; Arsenault, Matthew A.; Buczkowski, Brian J.; Reid, Jane A.; Flocks, James; Kulp, Mark A.; Penland, Shea; Jenkins, Chris J.

    2007-01-01

    The Louisiana coastal zone, comprising the Mississippi River delta plain stretching nearly 400 km from Sabine Pass at the Texas border east to the Chandeleur Islands at the Mississippi border, represents one of North America’s most important coastal ecosystems in terms of natural resources, human infrastructure, and cultural heritage. At the same time, this region has the highest rates of coastal erosion and wetland loss in the Nation due to a complex combination of natural processes and anthropogenic actions over the past century. Comparison of historical maps dating back to 1855 and recent aerial photography show the Louisiana coast undergoing net erosion at highly variable rates. Rates have increased significantly during the past several decades. Earlier published statewide average shoreline erosion rates were >6 m/yr; rates have increased recently to >10 m/yr. The increase is attributable to collective action of storms, rapid subsidence, and pervasive man-made alterations of the rivers and the coast. In response to the dramatic landloss, regional-scale restoration plans are being developed by a partnership of federal and state agencies for the delta plain that have the objectives of maintaining the barrier islands, reducing wetland loss, and enhancing the natural sediment delivery processes. There is growing awareness that the sustainability of coastal Louisiana's natural resources and human infrastructure depends on the successful restoration of natural geologic processes. Critical to the long term success of restoration is scientific understanding of the geologic history and processes of the coastal zone region, including interactions between the rivers, wetlands, coast, and inner shelf. A variety of geophysical studies and mapping of Late Quaternary sedimentary framework and coastal processes by U.S. Geological Survey and other scientists during the past 50 years document that the Louisiana delta plain is the product of a complex history of cyclic delta

  8. Post-Hurricane Ike coastal oblique aerial photographs collected along the Alabama, Mississippi, and Louisiana barrier islands and the north Texas coast, September 14-15, 2008

    USGS Publications Warehouse

    Morgan, Karen L. M.; Krohn, M. Dennis; Guy, Kristy K.

    2016-04-28

    The U.S. Geological Survey (USGS), as part of the National Assessment of Coastal Change Hazards project, conducts baseline and storm-response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms (Morgan, 2009). On September 14-15, 2008, the USGS conducted an oblique aerial photographic survey along the Alabama, Mississippi, and Louisiana barrier islands and the north Texas coast, aboard a Beechcraft Super King Air 200 (aircraft) at an altitude of 500 feet (ft) and approximately 1,200 ft offshore. This mission was flown to collect post-Hurricane Ike data for assessing incremental changes in the beach and nearshore area since the last survey, flown on September 9-10, 2008, and the data can be used in the assessment of future coastal change.The photographs provided in this report are Joint Photographic Experts Group (JPEG) images. ExifTool was used to add the following to the header of each photo: time of collection, Global Positioning System (GPS) latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact information. The photograph locations are an estimate of the position of the aircraft at the time the photograph was taken and do not indicate the location of any feature in the images (see the Navigation Data page). These photographs document the state of the barrier islands and other coastal features at the time of the survey. Pages containing thumbnail images of the photographs, referred to as contact sheets, were created in 5-minute segments of flight time. These segments can be found on the Photos and Maps page. Photographs can be opened directly with any JPEG-compatible image viewer by clicking on a thumbnail on the contact sheet.In addition to the photographs, a Google Earth Keyhole Markup Language (KML) file is provided and can be used to view the images by clicking on the marker and then clicking on either the thumbnail or the link above the thumbnail

  9. Louisiana forests

    Treesearch

    Herbert S. Sternitzke

    1965-01-01

    The total amount of forest land in Louisiana is virtually the same today as it was a decade ago. But its distribution has changed noticeably. In the Delta, for example, forest acreage is still declining; between 1954 and 1964, it dropped some 7 percent, thus closely paralleling trends in the Delta sections of neighboring Arkansas and Mississippi. Outside the Delta,...

  10. Deepwater Horizon Oil-Protection Sand Berm and its Morphologic Interactions with a Natural Barrier Island: an Overview

    NASA Astrophysics Data System (ADS)

    Sallenger, A. H.; Plant, N. G.; Flocks, J.; Long, J. W.; Miselis, J. L.; Sherwood, C. R.; Hansen, M.; Nayegandhi, A.; Wright, W.

    2011-12-01

    After the Deepwater Horizon explosion and oil spill, Louisiana received permission to build a sand berm parallel to and offshore of the ~30-km-long Chandeleur Islands to capture floating oil and keep it from reaching mainland marshes. The berm was built with dredged sand to a height of approximately 2 m above mean sea level and within 100 m of the Gulf-side of the natural barrier island. Here, we update the status of the sand berm and how its morphology has evolved since construction began in June 2010. This is part of a study of morphologic change involving time series of airborne lidar topographic and bathymetric surveys, boat acoustic bathymetric surveys, satellite imagery, and modeling of sediment transport. Waves and sea level are being monitored with models and in-situ sensors. We will examine, as of our latest surveys, whether the introduction of new sand from the berm has significantly changed peak elevations, Dhigh, along the natural islands and hence changed island vulnerability to being overtopped by storm-driven water levels, such as still-water level (η, due to tides, surge, and wave setup) and runup (R, due to swash). Vulnerabilities to overwash, where R > Dhigh, and inundation, where η > Dhigh, will be identified. We will investigate the impacts on the berm and island of extra-tropical storms through June 2011 and tropical storms through the hurricane season of summer and early fall 2011. For example, during a storm in early January 2011, significant wave heights of 4.9 m generated runup on the berm where R > Dhigh. Four breaches were cut through the berm, the largest 590 m wide. This study provides a unique opportunity to investigate the wave and current transport of a large quantity of introduced sand and determine whether and how the sand nourishes a severely eroding barrier island.

  11. Process-based model predictions of hurricane induced morphodynamic change on low-lying barrier islands

    USGS Publications Warehouse

    Plant, Nathaniel G.; Thompson, David M.; Elias, Edwin; Wang, Ping; Rosati, Julie D.; Roberts, Tiffany M.

    2011-01-01

    Using Delft3D, a Chandeleur Island model was constructed to examine the sediment-transport patterns and morphodynamic change caused by Hurricane Katrina and similar storm events. The model setup included a coarse Gulf of Mexico domain and a nested finer-resolution Chandeleur Island domain. The finer-resolution domain resolved morphodynamic processes driven by storms and tides. A sensitivity analysis of the simulated morphodynamic response was performed to investigate the effects of variations in surge levels. The Chandeleur morphodynamic model reproduced several important features that matched observed morphodynamic changes. A simulation of bathymetric change driven by storm surge alone (no waves) along the central portion of the Chandeleur Islands showed (1) a general landward retreat and lowering of the island chain and (2) multiple breaches that increased the degree of island dissection. The locations of many of the breaches correspond with the low-lying or narrow sections of the initial bathymetry. The major part of the morphological change occurred prior to the peak of the surge when overtopping of the islands produced a strong water-level gradient and induced significant flow velocities.

  12. Geotechnical studies associated with decommissioning the strategic petroleum reserve facility at Weeks Island, Louisiana: A case history

    SciTech Connect

    Bauer, S.J.; Ehgartner, B.L.; Neal, J.T.

    1997-05-01

    The first sinkhole at the Weeks Island Strategic Petroleum Reserve (SPR) site was initially observed in May 1992. Concurrent with the increasing dissolution of salt over the mined oil storage area below, it has gradually enlarged and deepened. Beginning in 1994 and continuing to the present, the injection of saturated brine directly into the sinkhole throat some 76 m beneath the ground surface essentially arrested further dissolution, providing time to make adequate preparation for the safe and orderly transfer of crude oil to other storage facilities. This mitigation measure marked the first time that such a control procedure has been used in salt mining; previously all control has been achieved by either in-mine or from-surface grouting. A second and much smaller sinkhole was noticed in early 1995 on an opposite edge of the SPR mine, but with a very similar geological and mine mechanics setting. Both sinkholes occur where the edges of upper 152 m and lower 213 m mined storage levels are nearly vertically aligned. Such coincidence maximizes the tensional stress development, leading to fracturing in the salt. This cracking takes 20 or more years to develop. The cracks then become flow paths for brine incursion, which after time progress into the mined openings. Undersaturated ground water gradually enlarges the cracks in salt through dissolution, leading to eventual collapse of the overlying sand to form sinkholes. Other geologic conditions may also be secondary factors in controlling both mining extent and sinkhole location.

  13. Extreme changes to barrier islands along the central Gulf of Mexico coast during Hurricane Katrina: Chapter 5C in Science and the storms-the USGS response to the hurricanes of 2005

    USGS Publications Warehouse

    Sallenger, Asbury; Wright, Wayne; Lillycrop, Jeff; Howd, Peter; Stockdon, Hilary; Guy, Kristy K.; Morgan, Karen

    2007-01-01

    Hurricane Katrina caused extreme changes to the barrier islands of the central Gulf of Mexico coast. Dauphin Island, Ala., migrated landward and stranded the remains of its oceanfront row homes in the sea. Chandeleur Islands, La., were completely stripped of their sand, leaving only marshy outcrops in the storm's wake.

  14. Diurnal time-activity budgets of redheads (Aythya americana) wintering in seagrass beds and coastal ponds in Louisiana and Texas

    USGS Publications Warehouse

    Michot, T.C.; Woodin, M.C.; Adair, S.E.; Moser, E.B.

    2006-01-01

    Diurnal time-activity budgets were determined for wintering redheads (Aythya americana) from estuarine seagrass beds in Louisiana (Chandeleur Sound) and Texas (Laguna Madre) and from ponds adjacent to the Laguna Madre. Activities differed (p<0.0001) by location, month, and diurnal time period. Resting and feeding were the most frequent activities of redheads at the two estuarine sites, whereas drinking was almost nonexistent. Birds on ponds in Texas engaged most frequently in resting and drinking, but feeding was very infrequent. Redheads from the Louisiana estuarine site rested less than birds in Texas at either the Laguna Madre or freshwater ponds. Redheads in Louisiana fed more than birds in Texas; this was partially because of weather differences (colder temperatures in Louisiana), but the location effect was still significant even when we adjusted the model for weather effects. Redheads in Louisiana showed increased resting and decreased feeding as winter progressed, but redheads in Texas did not exhibit a seasonal pattern in either resting or feeding. In Louisiana, birds maintained a high level of feeding activity during the early morning throughout the winter, whereas afternoon feeding tapered off in mid- to late-winter. Texas birds showed a shift from morning feeding in early winter to afternoon feeding in late winter. Males and females at both Chandeleur Sound and Laguna Madre showed differences in their activities, but because the absolute difference seldom exceeded 2%, biological significance is questionable. Diurnal time-activity budgets of redheads on the wintering grounds are influenced by water salinities and the use of dietary fresh water, as well as by weather conditions, tides, and perhaps vegetation differences between sites. The opportunity to osmoregulate via dietary freshwater, vs. via nasal salt glands, may have a significant effect on behavioral allocations. ?? Springer 2006.

  15. Barriers on the brink? The complex intertwined roles of geologic framework, sediment availability and sea-level rise in island evolution

    USGS Publications Warehouse

    Moore, Laura; List, Jeffrey H.; Williams, S. Jeffress; Patsch, Kiki; Rosati, Julie D.; Wang, Ping; Roberts, Tiffany M.

    2011-01-01

    Sensitivity experiments in the North Carolina Outer Banks (OBX) have previously revealed that substrate sand proportion, followed by substrate slope, sea-level rise rate and sediment-loss rate are the most important factors in determining how barrier islands respond to sea-level rise. High sediment-loss rates and low substrate sand proportions cause barriers to be smaller and more deeply incised. Thus, as sea level rise rates increase, more deeply incised barriers do not need to migrate as far landward as larger, less-incised barriers to liberate sand from the shoreface. However, if the combination of sand losses and substrate sand proportions requires a barrier to migrate landward faster than the shoreface can erode to replenish losses, a barrier will change state and begin to disintegrate. Because the substrate of the OBXis sand-rich, these barriers are likely to persist in the near-term. In contrast, model simulations for the Chandeleur Islands, Louisiana suggest sediment loss rates are too high and/or substrate sand proportions are too low to be matched by liberation of shoreface sand. These simulations further suggest that a state change, from a landward-migrating barrier system to a subaqueous shoal complex, is either already underway or imminent.

  16. Forest statistics for Southeast Louisiana Parishes

    Treesearch

    James F. Rosson; Daniel F. Bertelson

    1986-01-01

    The Southern Forest Survey, an activity of the Southern Forest Experiment Station Forest Inventory and Analysis work unit (FIA), covers the states of Alabama, Arkansas, Louisiana, Mississippi, Oklahoma, Tennessee, Texas and the island of Puerto Rico.This survey is part of the nationwide Forest Survey originally authorized by the McSweeney-...

  17. Forest statistics for South Delta Louisiana Parishes

    Treesearch

    James F. Rosson; Daniel F. Bertelson

    1986-01-01

    The Southern Forest Survey an activity of the southern forest inventory and analysis work unit (FIA), covers the stats of Alabama, Arkansas, Louisiana, Mississippi, Oklahoma, Tennessee, Texas and the island of Puerto Rico.This survey is part of the nationwide Forest survey originally authorized by the McSweeney-McNary Act of 1928. More...

  18. Forest statistics for North Delta Louisiana parishes

    Treesearch

    James F. Rosson; Daniel F. Bertelson

    1986-01-01

    The southern Forest survey, an activity of the Southern Forest Experiment Station Forest Inventory and Analysis work unit, covers the states of Alabama, Arkansas, Louisiana, Mississippi, Oklahoma, Tennessee, East Texas and the Island of Puerto Rico. This survey is part of the nationwide Forest Survey originally authorized by the McSweeney-McNary Act of 1928. More...

  19. Barrier island arcs along abandoned Mississippi River deltas

    USGS Publications Warehouse

    Penland, S.; Suter, J.R.; Boyd, Ron

    1985-01-01

    Generation of transgressive barrier island arcs along the Mississippi River delta plain and preservation of barrier shoreline facies in their retreat paths on the inner shelf is controlled by: (1) shoreface translation; (2) age of the transgression; and (3) the thickness of the barrier island arc sediment package. Barrier island arcs experience an average relative sea level rise of 0.50-1.00 cm yr-1 and shoreface retreat rates range from 5-15 m yr-1. Young barrier island arc sediment packages (Isles Dernieres) are thin and have experienced limited landward retreat of the shoreface. Older barrier island arcs (Chandeleur Islands) are thicker and have experienced significant landward movement of the shoreface because of the greater time available for retreat. If the transgressed barrier shoreline sediment package lies above the advancing ravinement surface, the entire sequence is truncated. A thin reworked sand sheet marks the shoreface retreat path. The base of the transgressive sediment package can lie below the ravinement surface in older barrier shorelines. In this setting, the superstructure of the barrier shoreline is truncated, leaving the basal portion of the transgressive sequence preserved on the inner shelf. A variety of transgressive stratigraphic sequences from sand sheets to truncated barrier islands to sand-filled tidal inlet scars have been identified by high resolution seismic profiling across the shoreface retreat paths of Mississippi delta barrier island arcs. One of these examples, the Isles Dernieres, represents a recently detached barrier island arc in the early stages of transgression. An older example, the Chandeleur Islands, represents a barrier island arc experiencing long-term shoreface retreat. This paper describes the stratigraphic character and preserved transgressive facies for the Isles Dernieres and Chandeleur Islands. ?? 1985.

  20. Ship Shoal as a prospective borrow site for barrier island restoration, coastal south-central Louisiana, Usa: Numerical wave modeling and field measurements of hydrodynamics and sediment transport

    USGS Publications Warehouse

    Stone, G.W.; Pepper, D.A.; Xu, Jie; Zhang, X.

    2004-01-01

    Ship Shoal, a transgressive sand body located at the 10 m isobath off south-central Louisiana, is deemed a potential sand source for restoration along the rapidly eroding Isles Dernieres barrier chain and possibly other sites in Louisiana. Through numerical wave modeling we evaluate the potential response of mining Ship Shoal on the wave field. During severe and strong storms, waves break seaward of the western flank of Ship Shoal. Therefore, removal of Ship Shoal (approximately 1.1 billion m3) causes a maximum increase of the significant wave height by 90%-100% and 40%-50% over the shoal and directly adjacent to the lee of the complex for two strong storm scenarios. During weak storms and fair weather conditions, waves do not break over Ship Shoal. The degree of increase in significant wave height due to shoal removal is considerably smaller, only 10%-20% on the west part of the shoal. Within the context of increasing nearshore wave energy levels, removal of the shoal is not significant enough to cause increased erosion along the Isles Dernieres. Wave approach direction exerts significant control on the wave climate leeward of Ship Shoal for stronger storms, but not weak storms or fairweather. Instrumentation deployed at the shoal allowed comparison of measured wave heights with numerically derived wave heights using STWAVE. Correlation coefficients are high in virtually all comparisons indicating the capability of the model to simulate wave behavior satisfactorily at the shoal. Directional waves, currents and sediment transport were measured during winter storms associated with frontal passages using three bottom-mounted arrays deployed on the seaward and landward sides of Ship Shoal (November, 1998-January, 1999). Episodic increases in wave height, mean and oscillatory current speed, shear velocity, and sediment transport rates, associated with recurrent cold front passages, were measured. Dissipation mechanisms included both breaking and bottom friction due to

  1. Examples of storm impacts on barrier islands: Chapter 4

    USGS Publications Warehouse

    Plant, Nathaniel G.; Doran, Kara; Stockdon, Hilary F.

    2017-01-01

    This chapter focuses on the morphologic variability of barrier islands and on the differences in storm response. It describes different types of barrier island response to individual storms, as well as the integrated response of barrier islands to many storms. The chapter considers case study on the Chandeleur Island chain, where a decadal time series of island elevation measurements have documented a wide range of barrier island responses to storms and long-term processes that are representative of barrier island behaviour at many other locations. These islands are low elevation, extremely vulnerable to storms and exhibit a diversity of storm responses. Additionally, this location experiences a moderately high rate of relative sea-level rise, increasing its vulnerability to the combined impacts of storms and long-term erosional processes. Understanding how natural processes, including storm impacts and intervening recovery periods interact with man-made restoration processes is also broadly relevant to understand the natural and human response to future storms.

  2. Modeling Catastrophic Barrier Island Dynamics

    NASA Astrophysics Data System (ADS)

    Whitley, J. W.; McNamara, D.

    2012-12-01

    Barrier islands, thin strips of sand lying parallel to the mainland coastline, along the U.S. Atlantic and Gulf Coasts appear to have maintained their form for thousands of years in the face of rising sea level. The mechanisms that allow barrier islands to remain robust are transport of sediment from the ocean side of barriers to the top and backside during storms, termed island overwash, and the growth and alongshore propagation of tidal deltas near barrier island inlets. Dynamically these processes provide the necessary feedbacks to maintain a barrier island in an attractor that withstands rising sea level within a phase space of barrier island geometrical characteristics. Current barrier island configurations along the Atlantic and Gulf coasts exist among a wide range of storm climate and underlying geologic conditions and therefore the environment that forces overwash and tidal delta dynamics varies considerably. It has been suggested that barrier islands in certain locations such as those between Avon and Buxton (losing 76% of island width since 1852) and Chandeleur islands (losing 85% of its surface area since 2005) along the Atlantic and Gulf coasts, respectively, may be subject to a catastrophic shift in barrier island attractor states - more numerous inlets cutting barriers in some locations and the complete disappearance of barrier islands in other locations. In contrast to common models for barrier islands that neglect storm dynamics and often only consider cross-shore response, we use an alongshore extended model for barrier island dynamics including beach erosion, island overwash and inlet cutting during storms, and beach accretion, tidal delta growth and dune and vegetation growth between storms to explore the response of barrier islands to a wide range of environmental forcing. Results will be presented that show how barrier island attractor states are altered with variations in the rate of sea level rise, storminess, and underlying geology. We will

  3. Archive of Boomer Seismic Reflection Data Collected During USGS Cruises 01SCC01 and 01SCC02, Timbalier Bay and Offshore East Timbalier Island, Louisiana, June-August, 2001

    USGS Publications Warehouse

    Calderon, Karynna; Dadisman, Shawn V.; Flocks, James G.; Kindinger, Jack G.; Wiese, Dana S.

    2003-01-01

    In June, July, and August of 2001, the U.S. Geological Survey (USGS), in cooperation with the University of New Orleans (UNO), the U.S. Army Corps of Engineers, and the Louisiana Department of Natural Resources, conducted a shallow geophysical and sediment core survey of Timbalier Bay and the Gulf of Mexico offshore East Timbalier Island, Louisiana. This report serves as an archive of unprocessed digital seismic reflection data, trackline navigation files, trackline navigation maps, observers' logbooks, Geographic Information Systems (GIS) information, and formal Federal Geographic Data Committee (FGDC) metadata. In addition, a filtered and gained digital Graphics Interchange Format (GIF) image of each seismic profile is provided. Please see Kulp and others (2002), Flocks and others (2003), and Kulp and others (in prep.) for further information about the sediment cores collected and the geophysical results. For convenience, a list of acronyms and abbreviations frequently used in this report is also included. This Digital Versatile Disc (DVD) document is readable on any computing platform that has standard DVD driver software installed. Documentation on this DVD was produced using Hyper Text Markup Language (HTML) utilized by the World Wide Web (WWW) and allows the user to access the information using a web browser (i.e. Netscape, Internet Explorer). To access the information contained on this disc, open the file 'index.htm' located at the top level of the disc using a web browser. This report also contains WWW links to USGS collaborators and other agencies. These links are only accessible if access to the Internet is available while viewing this DVD. The archived boomer seismic reflection data are in standard Society of Exploration Geophysicists (SEG) SEG-Y format (Barry et al., 1975) and may be downloaded for processing with public domain software such as Seismic Unix (SU), currently located at http://www.cwp.mines.edu/cwpcodes/index.html. Examples of SU

  4. Archive of Chirp Seismic Reflection Data Collected During USGS Cruises 01SCC01 and 01SCC02, Timbalier Bay and Offshore East Timbalier Island, Louisiana, June 30 - July 9 and August 1 - 12, 2001

    USGS Publications Warehouse

    Calderon, Karynna; Dadisman, Shawn V.; Flocks, James G.; Wiese, Dana S.; Kindinger, Jack G.

    2003-01-01

    In June, July, and August of 2001, the U.S. Geological Survey (USGS), in cooperation with the University of New Orleans, the U.S. Army Corps of Engineers, and the Louisiana Department of Natural Resources, conducted a shallow geophysical and sediment core survey of Timbalier Bay and the Gulf of Mexico offshore East Timbalier Island, Louisiana. This report serves as an archive of unprocessed digital seismic reflection data, trackline navigation files, trackline navigation maps, observers' logbooks, Geographic Information Systems (GIS) information, and formal Federal Geographic Data Committee (FGDC) metadata. In addition, a gained digital Graphics Interchange Format (GIF) image of each seismic profile is provided. Please see Kulp and others (2002), Flocks and others (2003), and Kulp and others (in prep.) for further information about the sediment cores collected and the geophysical results. For convenience, a list of acronyms and abbreviations frequently used in this report is also included. This Digital Versatile Disc (DVD) document is readable on any computing platform that has standard DVD driver software installed. Documentation on this DVD was produced using Hyper Text Markup Language (HTML) utilized by the World Wide Web (WWW) and allows the user to access the information using a web browser (i.e. Netscape, Internet Explorer). To access the information contained on these discs, open the file 'index.htm' located at the top level of each disc using a web browser. This report also contains WWW links to USGS collaborators and other agencies. These links are only accessible if access to the internet is available while viewing these DVDs. The archived chirp seismic reflection data are in standard Society of Exploration Geophysicists (SEG) SEG-Y format (Barry et al., 1975) and may be downloaded for processing with public domain software such as Seismic Unix (SU), currently located at http://www.cwp.mines.edu/cwpcodes/index.html. Examples of SU processing scripts are

  5. The Louisiana Scholarship Program

    ERIC Educational Resources Information Center

    Egalite, Anna J.; Mills, Jonathan N.

    2014-01-01

    The Louisiana Scholarship Program (LSP), also known as the Student Scholarships for Educational Excellence Program, provides public funds for low-income students in low-performing public schools to enroll in local private schools. The program was initially piloted in New Orleans in 2008; Louisiana governor Bobby Jindal and the state legislature…

  6. Educational Reform in Louisiana.

    ERIC Educational Resources Information Center

    Maxcy, Spencer J.; Maxcy, Doreen O.

    1993-01-01

    Although education has appealed to southern governors as a catapult to historical recognition, future governors should consider Louisiana Governor Buddy Roemer's ill-fated educational reform plan for Louisiana State University's College of Education, particularly its teacher evaluation and internship program. Public education seems a low-priority…

  7. Nutria, eating Louisiana's coast

    USGS Publications Warehouse

    ,

    2000-01-01

    Eating-out might be a term you associate with a pleasant experience, especially in south Louisiana where the food is good and the atmosphere is casual. Another kind of eat-out in Louisiana that is not so pleasant, though, is where nutria, large semiaquatic rodents introduced from South America, have literally eaten up the coastline. Nu

  8. The Louisiana Scholarship Program

    ERIC Educational Resources Information Center

    Egalite, Anna J.; Mills, Jonathan N.

    2014-01-01

    The Louisiana Scholarship Program (LSP), also known as the Student Scholarships for Educational Excellence Program, provides public funds for low-income students in low-performing public schools to enroll in local private schools. The program was initially piloted in New Orleans in 2008; Louisiana governor Bobby Jindal and the state legislature…

  9. Regressive and transgressive barrier islands on the North-Central Gulf Coast — Contrasts in evolution, sediment delivery, and island vulnerability

    NASA Astrophysics Data System (ADS)

    Otvos, Ervin G.; Carter, Gregory A.

    2013-09-01

    Basic differences between non-deltaic regressive and deltaic transgressive barrier islands reflect major contrasts in geological settings and sediment sources. Two island groups on the N. Gulf of Mexico provide unique perspectives of genetic and geomorphic contrasts applicable in a worldwide context. The near-extinction of the deltaic transgressive Chandeleur barriers and reduction of the sturdier prograded Mississippi-Alabama (MS-AL) chain are related to differences in sediment sources, storm, and anthropogenic impact. 160 years of documentary evidence points to contrasting geological settings, development history, sediment sources, and island morphology as responsible for different island erodibility and life spans. The non-deltaic chain received larger volumes of coarser, less erodible medium sand from the NE Gulf coast. Onshore sand flux from reworked delta deposits received from the retreating delta shoreface initiated the fragile, thin, and isolated transgressive Chandeleur islands. Fine-grained sand from unconsolidated muds of abandoned Mississippi-St. Bernard delta lobes maintained two distinct transgressive barrier island categories. In the absence of quantitative data on cross-shore transport, discrepancies between estimated littoral drift volumes and sand reserves for nourishment remain unexplained. Medium-sandy MS-AL barriers have resisted storm events far better than delta barriers. However, even the former chain did undergo 26 to 53% area reduction since 1848. Anthropogenic intervention stymied island growth. Emerging intertidal berm-basins formed on sandy shoal platforms in storm-eliminated sectors have contributed to partial island recovery. Delta attrition by wave erosion, tectonic, and compactional subsidence had accelerated delta lobe and barrier island decay. Intensive storm erosion culminating in and following Hurricane Katrina came close to eradicate the highly vulnerable Chandeleur barrier chain. Lacking adequate nourishment, after

  10. A catalog of Louisiana's nesting seabird colonies

    USGS Publications Warehouse

    Fontenot, William R.; Cardiff, Steve W.; DeMay, Richard A.; Dittmann, Donna L.; Hartley, Stephen B.; Jeske, Clinton W.; Lorenz, Nicole; Michot, Thomas C.; Purrington, Robert Dan; Seymour, Michael; Vermillion, William G.

    2012-01-01

    collective habitats which comprise Louisiana's now fragile coastal zone have taken major hits from commercial/residential, oil & gas, and other industrial development, primarily in the form of coastal erosion exacerbated by these and other factors (Portnoy 1978, Spendelow and Patton 1988, Martin and Lester 1990, Green, et al. 2006). Moreover, during this same period, both geologic subsidence rates (Tornqvist et al. 2008) and mean sea-level (Tornqvist et al. 2002) have increased, along with significant tropical storm activity; all of which have combined to impact available marsh, barrier island, beach, and dredge spoil nesting habitat for waterbirds, especially seabirds, throughout the coastal zone of Louisiana. The primary objective of this publication is to detail those coastal Louisiana colonial seabird nesting sites for which we have reasonably accurate data, in a tabular, site-by-site format. All major survey (1976-2008) data of site-by-site seabird species counts, as well as several smaller data sets, referred to in the site history tables as “miscellaneous observations” obtained during the May-June seabird breeding period, are included. It is our hope that these data will provide a dependable foundation from which future colonial seabird nesting surveys might be planned and carried out, as well as showcase the importance of coastal Louisiana's seabird rookeries, and contribute to their conservation.

  11. Seismic stratigraphy, facies architecture, and reservoir character of a pleistocene shelf-margin delta complex, Eugene Island Block 330 field, offshore Louisiana

    SciTech Connect

    Hart, B.S.; Sibley, D.M.; Flemings, P.B.

    1997-03-01

    The GA interval of the Eugene Island Block 330 field is the deposit of late Pleistocene ({approximately}0.8 Ma) shelf-margin lowstand delta complex. We integrated three-dimensional (3-D) seismic, wireline log, core, and cuttings data to examine the delta`s internal architecture and to reconstruct its depositional history. This interval displays a complex vertical and lateral interfingering of channel, clinoform, and base-of-slope failure deposits over short distances (a few kilometers), and is the product of delta lobe progradation structural development (growth faults, rollover anticline) and relative sea level change. We then integrated our sequence stratigraphic interpretation with production data. Hydrocarbon accumulations in the interval are primarily associated with updip facies (delta mouth bar, delta front) beneath the flooding surface at the top of the interval, and not the sequence boundary at the base of the interval. Maps of seismic amplitudes associated with the top of the GA interval show patchy (mouth bar deposits) and curvilinear (interdistributary delta front) trends that indicate reservoir heterogeneities associated with depositional features. There is a good qualitative relationship between seismic amplitude and production characteristics, with the best production being from high-amplitude areas that sit high on the structure.

  12. Louisiana Believes: Annual Report 2013

    ERIC Educational Resources Information Center

    Louisiana Department of Education, 2013

    2013-01-01

    "Louisiana Believes" is the state's comprehensive plan to ensure every student is on track to a professional career or a college degree. This annual report details Louisiana's progress toward that objective during the 2012-2013 school year, along with strategy for the coming school year. "Louisiana Believes" has three…

  13. Louisiana coastal ecosystem

    USGS Publications Warehouse

    ,

    2000-01-01

    Louisiana's coast and its degradation and restoration are major environmental issues being studied at the National Wetlands Research Center. Coastal ecosystems are vulnerable because of the tremendous amount of human activity that takes place along the coast. Information on ecological processes is essential to guide the development along the coast as well as to protect and restore wildlife habitat.Louisiana has about 40% of coastal wetlands in the lower 48 states; they support fish, waterfowl, and fur-bearing animals as well as unique cultures like that of the Acadians. The fish and wildlife resources of Louisiana's coast produce over $1 billion each year in revenues.But Louisiana has the highest coastal loss rate because of natural and human causes. Over the past three decades, Louisiana has lost as much as 35-40 mi2 (90-104 km2) of coastal wetlands a year.The National Wetlands Research Center is qualified to assess and monitor this ecosystem because of its proximity to the study area, a staff chosen for their expertise in the system, and a number of established partnerships with others who study the areas. The Center is often the lead group in partnerships with universities, other federal agencies, and private entities who study this ecosystem.Most of the Center's research and technology development performed for coastal wetlands are done at the Lafayette headquarters; some work is performed at the National Wetlands Research Center's project office in Baton Rouge, LA.

  14. Forest resources of Louisiana

    Treesearch

    James F. Rosson; William H. McWilliams; Paul D. Frey

    1988-01-01

    This report documents the findings of the fifth forest survey of Louisiana. Trend data on the forest resource are presented along with appropriate tables and figures. The appendix contains definitions of terms, a discussion of data reliability, a tree species list, and 22 standard statistical tables. Data are reported for January 1, 1984. Major highlights are listed...

  15. Forests of Louisiana, 2014

    Treesearch

    S.N. Oswalt

    2017-01-01

    This resource update provides an overview of forest resources in Louisiana based on an inventory conducted by the U.S. Forest Service, Forest Inventory and Analysis (FIA) program at the Southern Research Station. Estimates are based on field data collected using the FIA annualized sample design and are updated yearly. The estimates presented in this update are for the...

  16. Forests of Louisiana, 2012

    Treesearch

    S.N. Oswalt

    2014-01-01

    This resource update provides an overview of forest resources in Louisiana based on an inventory conducted by the U.S. Forest Service, Forest Inventory and Analysis (FIA) program at the Southern Research Station in cooperation with the Mississippi Forestry Commission. Estimates are based on field data collected using the FIA annualized sample design and are updated...

  17. Louisiana's sixth forest survey

    Treesearch

    James F. Rosson

    1993-01-01

    The sixth Louisiana forest survey was completed in November 1991.Previous surveys were done in 1935, 1954, 1964, 1974, and 1984. Information derived from the forest survey has become more and more detailed and comprehensive since the first survey in 1935 as a direct result of enhanced sampling techniques, expanded administrative budgets, and development of computer...

  18. Geographic Education in Louisiana

    ERIC Educational Resources Information Center

    Lewis, Anthony J.

    2004-01-01

    In this article, the author analyzes and summarizes geographic education in Louisiana from a historical perspective with a specific emphasis on the degree to which geography was implemented into the state's standards. To accomplish that, he draws from the following three sources of information: active and retired social studies teachers from a…

  19. Louisiana Adolescent Data Book.

    ERIC Educational Resources Information Center

    Kimbrell, Joe, Ed.; Daly, Maureen, Ed.; Sterne, Sylvia, Ed.; Howard, Sharon, Ed.; Evans, Trina, Ed.; Lowenthal, Nancy, Ed.; Galatas, Kate, Ed.; Sumrall, Liz, Ed.

    This report provides a comprehensive review of the status of Louisiana's youth and is designed to be used in planning efforts and in developing priorities for improving the health and welfare of the youth of the state. Chapter 1 of the report examines the concept of expanding the definition of health to include social and emotional development,…

  20. The geological framework of coastal land loss in Louisiana

    SciTech Connect

    Penland, S. ); Roberts, H.H. ); Williams, S.J. )

    1990-09-01

    The Mississippi River delta and chenier plains in Louisiana are experiencing catastrophic coastal land loss rates exceeding 100 km{sup 2}/ yr. Louisiana's coastal zone contains 40% of the US wetlands and 80% of the nation's loss occurs here. The origin and stability of these coastal environments are tied to the sediments discharged by the Mississippi River through the delta cycle process. Sediments accumulate in well-defined delta complexes at approximately 800-1,000 year intervals followed by abandonment and barrier island formation. The delta-cycle process, which builds new deltas and barrier islands, has been stopped by flood control structures. These harness the flow of the Mississippi River within a massive levee system, channeling most of the sediments off of the continental shelf. Deprived of sediments and subsiding rapidly, Louisiana's wetlands are disintegrating and the shoreline is eroding. Subsidence is a key critical process driving the submergence of Louisiana's sediment-starved coastal zone. The thickness of the Holocene sequence controls the subsidence rate. Where the Holocene delta plain sequence is greater than 50 m, the submergence rates are 1- 1.25 cm/yr and the land loss rates are 80 km{sup 2}/yr. In contrast, where the Holocene chenier plain thickness is less than 15 m, the submergence rates are 0.4-0.6 cm/yr, and the land loss rate is 10 km{sup 2}/yr.

  1. Louisiana's statewide beach cleanup

    USGS Publications Warehouse

    Lindstedt, Dianne M.; Holmes, Joseph C.

    1989-01-01

    Litter along Lousiana's beaches has become a well-recognized problem. In September 1987, Louisiana's first statewide beach cleanup attracted about 3300 volunteers who filled 16,000 bags with trash collected along 15 beaches. An estimated 800,173 items were gathered. Forty percent of the items were made of plastic and 11% were of polystyrene. Of all the litter collected, 37% was beverage-related. Litter from the oil and gas, commercial fishing, and maritime shipping industries was found, as well as that left by recreational users. Although beach cleanups temporarily rid Louisiana beaches of litter, the real value of the effort is in public participation and education. Civic groups, school children, and individuals have benefited by increasing their awareness of the problems of trash disposal.

  2. Louisiana's Children of the Fields.

    ERIC Educational Resources Information Center

    Junkin, William J., Jr.; Faser, Patricia F.

    Louisiana, like other agricultural states, has long known the cyclic demand for large numbers of seasonal farm workers. These migrant workers are being replaced by machines, except during harvesting of crops which resist mechanization (e.g., strawberries). Families migrate to Louisiana to pick berries. Due to this influx of educatables, the local…

  3. Forest resources of Louisiana, 1991

    Treesearch

    James F. Rosson

    1995-01-01

    The findings of the sixth Louisiana forest survey are summarized in this report. The survey is administered by the U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station, headquartered in New Orleans, Louisiana. The Forest Inventory and Analysis (SO-FIA) work unit located in Starkville, Mississippi, is responsible for conducting the surveys...

  4. Domestic fuelwood use in Louisiana

    Treesearch

    Victor A. Rudis

    1986-01-01

    A telephone survey of Louisiana households and commercial vendors of domestic fuelwood was conducted in 1984 to assess domestic fuelwood use and sources of production.Twenty-two percent of the households surveyed used fuelwood during the 1983-84 heating season.Domestic fuelwood production amounted to 981,000 m3, an amount comparable to 10% of Louisiana's 1982...

  5. Regional Phonological Variants in Louisiana Speech.

    ERIC Educational Resources Information Center

    Rubrecht, August Weston

    Based on tape recorded conversations of 28 informants in 18 Louisiana communities, this study investigated regional phonological variants in Louisiana speech. On the basis of settlement history and previous dialect studies, four regions are defined: northern Louisiana, the Florida Parishes, French Louisiana, and New Orleans. The informants are all…

  6. Regional Phonological Variants in Louisiana Speech.

    ERIC Educational Resources Information Center

    Rubrecht, August Weston

    Based on tape recorded conversations of 28 informants in 18 Louisiana communities, this study investigated regional phonological variants in Louisiana speech. On the basis of settlement history and previous dialect studies, four regions are defined: northern Louisiana, the Florida Parishes, French Louisiana, and New Orleans. The informants are all…

  7. KISATCHIE HILLS WILDERNESS, LOUISIANA.

    USGS Publications Warehouse

    Haley, Boyd R.; Ryan, George S.

    1984-01-01

    A mineral-resource survey of the Kisatchie Hills Wilderness, Louisiana indicated little promise for the occurrence of mineral resources. There is insufficient data on oil and gas producing formations that underlie the area to evaluate the oil and gas resource potential. All the oil fields of Wilcox age are less than 40 acres in extent; therefore, closer spaced deeper wells might find additional fields in sediments of Wilcox age. Oil and natural gas have been produced from older reservoirs (Cretaceous age) to the northwest of the wilderness, and deeper wells might find oil and natural gas in sediments of Cretaceous and older age in the vicinity of the wilderness.

  8. NASA Analyzes Deadly Louisiana Flooding

    NASA Image and Video Library

    NASA's IMERG data from Aug. 8 to Aug. 15, 2016 showed over 20 inches (508 mm) of rainfall was estimated in large areas of southeastern Louisiana and extreme southern Mississippi. Even greater rainf...

  9. Well log and 2D seismic data character of the Wilcox Group in south-central Louisiana

    USGS Publications Warehouse

    Enomoto, Catherine B.

    2014-01-01

    The Wilcox Group is productive in updip areas of Texas and Louisiana from fluvial, deltaic, and near-shore marine shelf sandstones. The reported presence of porous sandstones at 29,000 feet within the Wilcox Group containing about 200 feet of gas in the Davy Jones 1 discovery well in the offshore Louisiana South Marsh Island area illustrates a sand-rich system developed during the Paleocene and early Eocene. This study describes some of the well log and reflection seismic data characteristics of the slope and basin-floor reservoirs with gas-discovery potential that may be in the area between the producing trend onshore Louisiana and the offshore discovery.

  10. New Orleans, Louisiana

    NASA Image and Video Library

    2017-09-27

    On Sunday, February 3, roughly 800 million eyes from all over the world focused on the Louisiana Superdome in New Orleans as the New England Patriots battled the St. Louis Rams for the NFL Championship in Super Bowl XXXVI. This true color image of New Orleans was acquired on April 26, 2000, by the Enhanced Thematic Mapper plus (ETM+), flying aboard the Landsat 7 satellite. Lake Pontchartrain borders the city to the north. The big river winding its way east to west through the image is the Mississippi. The Louisiana Superdome, built in 1975, sits just inside the rightmost portion of the big river bend that cradles downtown New Orleans. The city, however, may not be around to hold a Super Bowl in 2102. New Orleans is slowly sinking into the Gulf of Mexico. The construction of flood walls and dams north of New Orleans over the past century have prevented sediments carried by the Mississippi River from reaching New Orleans and the Mississippi River Delta. Before the dams were built, river sediments would empty out onto the delta adding layer upon layer of new soil each year. The additional soil prevented the Gulf from subsuming the delta. Unless drastic measures are taken, the city and the delta could be awash in seawater by the end of this century. Image by Robert Simmon, based on data provided by the Landsat 7 Science Team Credit: NASA/GSFC/Landsat 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 Join us on Facebook

  11. EPA Addresses Environmental Justice in Louisiana

    EPA Pesticide Factsheets

    DALLAS - (Oct. 8, 2015) Today, the U.S. Environmental Protection Agency (EPA) announced Louisiana Environmental Action Network (LEAN) was selected as a grant recipient to address environmental justice (EJ) issues in Grand Bois, Louisiana. The grant

  12. Processes of barrier island erosion

    SciTech Connect

    Sallenger, A.H. Jr. ); Williams, S.J. )

    1989-09-01

    During 1986, the US Geological Survey and the Louisiana Geological Survey began a 5-year study of the processes causing the extreme rates (up to 20 m/year) of erosion of Louisiana's barrier islands. These processes must be better understood in order to predict future erosion and to assess management and erosion mitigation plans. The study is divided into three parts: the geologic development of barrier islands, the critical processes leading to erosion, and applications of results. This paper provides an overview of the part of the study on critical processes. The process part includes modeling erosion of the barrier islands due to sea level rise, the net loss of sand offshore, gradients in longshore transport, and overwash. Evidence indicates that the low-lying barrier beaches on much of the Louisiana coast do not approach an equilibrium configuration. These beaches, which, in many places, are not protected by dunes, are overwashed even during moderate storms and apparently are not evolving to a configuration that limits overwash. As a result, even with stable sea level, the beaches will continue to overwash and migrate landward during storms. Commonly used methods of modeling beach response to rising sea level assume beaches approach an equilibrium configuration, hence applying these methods to coastal Louisiana is problematical.

  13. Collecting and Reporting Dropout Data in Louisiana.

    ERIC Educational Resources Information Center

    Franklin, Bobby J.; Kochan, Susan

    This paper describes the design and function of Louisiana's statewide student-level database, the Student Information System (SIS). In Louisiana the State Board of Elementary and Secondary Education adopted the dropout definition of the National Center for Education Statistics for use by all Louisiana public schools in the 1989-1990 school year.…

  14. Teaching about the Louisiana Purchase. ERIC Digest.

    ERIC Educational Resources Information Center

    Patrick, John J.

    The year 2003 marks the bicentennial of the 1803 Treaty of France, by which the United States of America acquired the Louisiana Territory, an area of more than 828,000 square miles. Upon this acquisition, known as the Louisiana Purchase, the territory of the United States doubled. Historians consider the Louisiana Purchase to be a landmark event…

  15. Water resources of southwestern Louisiana

    USGS Publications Warehouse

    Jones, Paul H.; Hendricks, E.L.; Irelan, Burdge; ,

    1956-01-01

    In southwestern Louisiana large quantities of fresh water are available for agricultural, municipal, domestic, and industrial purposes. However, local and regional problems resulting from salt-water encroachment in the streams and persistent declines of the groundwater levels in certain areas during . drought periods have caused some concern regarding the future water supply of the region. · In order to appraise the situation, to provide hydrologic information basic to development of the area, and to provide a basis for sound plans for alleviating recurrent dry-year losses, a study of the ground-water resources of the area was begun in 1938 through cooperation with the Louisiana Geological Survey, Department of Conservation. An intensive investigation comprising ground-water, surface-water, and quality-of-water studies was authorized in 1948 in cooperation with the Louisiana Department of Public Works, and was completely under' way before the 1949 irrigation season. The studies were carried through the irrigation season of 1951.

  16. The Louisiana Go Local Experience

    PubMed Central

    Fahrmann, Melissa; Pesch, Wendy T.

    2012-01-01

    Between 2006 and 2009, two health sciences librarians at Baton Rouge General Medical Center created and launched the Louisiana segment of the National Library of Medicine’s Go Local program, whose ultimate goal was to improve the health information-seeking experience of the general public. Louisiana Go Local was successfully launched in October 2009, but in spring 2010, the national umbrella project was cancelled by the National Library of Medicine. This article describes the three-year development of a statewide database of health services descriptions and contact information to assist non-expert health information seekers in finding those health care providers located geographically closest to them. PMID:22347810

  17. Louisiana Kids Count. 1994 Data Book on Louisiana's Children.

    ERIC Educational Resources Information Center

    Agenda for Children, New Orleans, LA.

    This Kids Count data book presents statewide trends in the well-being of Louisiana's children. The statistical profile is based on key indicators of well-being in nine areas: (1) child poverty; (2) children in families receiving welfare services; (3) maternal and child health; (4) juvenile offenses; (5) public education; (6) child abuse and…

  18. Louisiana Migrant Education Support Services.

    ERIC Educational Resources Information Center

    Smith, Billie Jean

    Prepared for school directors, social workers, counselors, recruiters, teachers, and migrant supporters, this booklet presents practical information that can be used to assist Louisiana's migrant children and their families in the areas of health, clothing, nutrition, education, and family services. Information given pertains to: the Community…

  19. Antidote: Civic Responsibility. Louisiana Law.

    ERIC Educational Resources Information Center

    Phi Alpha Delta Law Fraternity International, Washington, DC.

    Designed for middle school through high school students, this unit contains eight lesson plans that focus on Louisiana state law. The state lessons correspond to lessons in the volume, "Antidote: Civic Responsibility. Drug Avoidance Lessons for Middle School & High School Students." Developed to be presented by educators, law…

  20. Louisiana Business Education Journal. 1994.

    ERIC Educational Resources Information Center

    Redmann, Donna, Ed.

    1994-01-01

    This annual journal contains nine articles dealing with business education in Louisiana and elsewhere. The articles "Word Processing Competencies: Which Ones Are Really Necessary?" (Patricia Lynn Anderson, Mary Alice Griffin) and "English Basics Were Developed in Shorthand--Why Not in Keyboarding?" (Clora Mae Baker, Marcia A.…

  1. Religion and Education in Louisiana.

    ERIC Educational Resources Information Center

    Stader, David L.; Armenta, Tony; Hill, Flo

    Church-state issues in education have a long history in America. Although the U.S. Supreme Court has made several landmark decisions with regard to the separation of church and state in schools, strong conservative influences in Southern states, including Louisiana, have resulted in state statutes and individual school-district policies and…

  2. Louisiana forests: Status and outlook

    Treesearch

    Paul A. Murphy

    1975-01-01

    Between 1964 and 1974, forest area in Louisiana declined 9 percent to 14.5 million acres. Softwood volume increased 31 percent to 9 billion cubic feet, and hardwood declined 7 percent to 7.7 billion. All softwood size classes had increases in volume, and all hardwood size classes had decreases.

  3. Loss of coastal wetlands in Louisiana: Cooperative research to assess the critical processes

    USGS Publications Warehouse

    Williams, S.J.; Sallenger, A.H.

    1990-01-01

    Erosion of the nation's shoreline and loss and deterioration of our coastal wetlands are widespread and serious problems that affect all regions of the US. As a result of natural and human-induced factors, the coastal plain of Louisiana, which contains 40% of the tidal wetlands in the conterminous 48 States, is undergoing the greatest amount of coastal erosion and wetlands loss in the nation. The barrier islands that provide a natural buffer for Louisiana's deltaic plain environments are experiencing erosion rates of 20m/yr, while wetlands losses are about 100km2/yr. In response to these problems and the lack of scientific understanding of the processes causing erosion and land loss, the US Geological Survey has, since 1986, conducted field investigations in Louisiana, working closely with the US Fish and Wildlife Service and other Federal and State agencies. 

  4. Louisiana peat resources. Final technical report, 1 April 1981-15 April 1983

    SciTech Connect

    Kosters, E.C.; Bailey, A.

    1983-08-01

    Five peat prospect areas - Gueydan, Avery Island, Sale-Cypremort, Barataria, and Lake Pontchartrain - are representative of different types of South Louisiana peat deposits. Together, the prospects are estimated to contain about 20 x 10/sup 6/ metric tons of peat. Because these areas occupy only a small portion of the deltaic and chenier plains, there is potentially much more peat present in South Louisiana. Approximately 2000 samples, taken from about 200 auger holes and vibracores, were analyzed. Average values of Louisiana peat are 90% moisture, 80% organic matter (20% ash), a bulk density of 0.12 g/cm/sup 3/, and a Btu of 8515. The relationships between percent moisture and organic matter and between bulk density and depth indicate that compaction during the first few thousand years was minimal. Freshwater peats contain primarily kaolinite and quartz, whereas marine-influenced peats contain kaolinite, quartz, and water-soluble salts.

  5. Childhood sarcoidosis: Louisiana experience.

    PubMed

    Gedalia, Abraham; Khan, Tahir A; Shetty, Avinash K; Dimitriades, Victoria R; Espinoza, Luis R

    2016-07-01

    A retrospective chart review was conducted to detect patients with sarcoidosis seen by pediatric rheumatology service from the period of 1992 to 2013 at Children's hospital of New Orleans. Twenty-seven patients were identified. The average duration of symptoms before diagnosis was 5 (range 1-120) months. Five patients had onset before the age of 5 years and were diagnosed with early-onset sarcoidosis. The most common manifestations at presentation were constitutional symptoms (62 %) followed by ocular (38 %). During the course of illness, 19/27 (70 %) had multiorgan involvement. Common manifestations included uveitis/iritis (77 %), fever (50 %), hilar adenopathy (42 %), arthritis (31 %), peripheral lympadenopathy (31 %), hepatosplenomegaly (31 %), parenchymal lung disease (27 %), and skin rash (19 %). Unusual manifestations included granulomatous bone marrow disease (3 cases), hypertension (2), abdominal aortic aneurysm (large vessel vasculitis; 1), granulomatous hepatitis (1), nephrocalcinosis (1), membranous nephropathy (1), refractory granulomatous interstitial nephritis with recurrence in transplanted kidney (1), CNS involvement (2), parotid gland enlargement (1), and sensorineural hearing loss (1). Biopsy specimen was obtained in 21/27 (77 %) patients, and demonstration of noncaseating granuloma associated with negative stains for mycobacteria and fungi was seen in 18 patients. Elevated angiotensin-converting enzyme level was seen in 74 % of patients. Treatment with oral prednisone was initiated in symptomatic patients with significant clinical improvement. Low-dose methotrexate (MTX) 10-15 mg/m(2)/week orally, as steroid-sparing agent, was administered in 14 patients. Other immunomodulators included cyclophosphamide (2 patients), etanercept (2), infliximab (2), mycophenolate mofetil (1), and tacrolimus (1). Childhood sarcoidosis is prevalent in Louisiana. Most of the affected children present with a multisystem disease associated with

  6. Pilot oil atlas for Louisiana

    SciTech Connect

    Bourgoyne, A.T. Jr.; Kimbrell, C.; Gao, Weigang.

    1993-01-01

    An interdisciplinary research team of engineers, geologists, and computer scientists was assembled at LSU to develop unproved methods for prospecting for bypassed oil and to support oil and gas producers in Louisiana. The overall objective of the project was to develop methods for extending the producing life of several types of reservoirs by reducing the amount of oil being bypassed and abandoned. As part of this work, the team collected information available from public sources for several example reservoirs. One task of the project was to develop a format for the compilation of the extensive but cumbersome Louisiana reservoir data so that it could be used by government and industry to evaluate the resource and plan future activities. The existing information system maintained by Louisiana is a Production Audit Reporting System (PARS). It was designed to allow auditing of oil and gas production and severance taxes associated with this production. It was not intended to be used as a database for determining reservoir recovery efficiency or prospecting for oil and gas. Its use for these purposes, however, has been increasing. The database format suggested in this report would allow production information to be easily displayed by reservoir as well as by lease, unit, or well. The data collected as part of the bypassed-oil study was used to illustrate the proposed new format. This pilot database, or atlas, contains information available for 15 reservoirs. It is recommended that LSU continue to compile and publish database information on the potential for bypassed oil in Louisiana's active reservoirs. This technology-transfer activity should focus each year on those active reservoirs involved in hearings of the Louisiana Office of Conservation. It should also focus on reservoirs being screened by LSU for EOR.

  7. Regional chronostratigraphic and depositional hydrocarbon trends in offshore Louisiana State waters

    SciTech Connect

    John, C.J.; Jones, B.J.; Harder, B.J.

    1996-09-01

    Successful exploration for hydrocarbons in the Northern Gulf of Mexico basin requires a systematic understanding of hydrocarbon producing trends, sand body geometries and the geologic, engineering and reservoir parameters of the producing sands. This study forms part of the Offshore Atlas project in progress at the University of Texas at Austin, Bureau of Economic Geology, Texas, in co-operation with the U.S. Department of Interior, Minerals Management Service, and the Geological Survey of Alabama, and is aimed at achieving this goal. In this study, 26 chronozones were grouped into 12 sub-groups. The chronozones were defined on the basis of the benthic foraminiferal biostratigraphic zones and were correlated across the Gulf using well log and seismic data and were projected from the Federal offshore into the State waters. The chronozones on each well log in the 22 cross sections constructed from West Cameron area eastward to the Chandeleur, Breton Sound and Main Pass areas, were subdivided as applicable into four depositional groups consisting of aggradational, progradational, transgressive and submarine fan facies based primarily on SP log shapes. In the Louisiana State waters there are 86 fields containing 679 reservoirs. This includes 212 oil, 344 gas, 33 condensate and 90 combination type reservoirs. Total combined cumulative production (1975-1995) is 454,335,217 barrels of oil, 114,327,696 barrels of condensate and 5,436,623,888 thousand cubic feet of gas. Total assigned production shows the progradational facies to be most productive yielding 51.69% oil 93.84% condensate, and 77.47% gas. The aggradational facies sands produced 46.96% oil, 1.70% condensate and 17.78%. gas. The submarine fan facies yielded 1.21% oil, 4.45% condensate, and 6.74% gas. Production from the transgressive facies sands was less than 0.2% of the total assigned production of oil, gas and condensate.

  8. 76 FR 35200 - High Island Offshore System, L.L.C.; Notice of Amendment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-16

    ... Energy Regulatory Commission High Island Offshore System, L.L.C.; Notice of Amendment Take notice that on June 6, 2011, High Island Offshore System, L.L.C. (HIOS), 1100 Louisiana St., Houston, Texas 77002... HIOS's request to abandon three compressor units on a platform at High Island Area Block 264, located...

  9. 75 FR 4547 - High Island Offshore System, L.L.C.; Notice of Application

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-28

    ... Energy Regulatory Commission High Island Offshore System, L.L.C.; Notice of Application January 21, 2010. Take notice that on January 12, 2010, High Island Offshore System, L.L.C. (HIOS), 1100 Louisiana St... questions regarding this application should be directed to Jeff Molinaro, High Island Offshore System,...

  10. KENNEDY SPACE CENTER, FLA. - A roseate spoonbill flies across the water near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the National Merritt Island Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

    NASA Image and Video Library

    2003-10-24

    KENNEDY SPACE CENTER, FLA. - A roseate spoonbill flies across the water near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the National Merritt Island Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

  11. Horizontal technology helps spark Louisiana`s Austin chalk trend

    SciTech Connect

    Koen, A.D.

    1996-04-29

    A handful of companies paced by some of the most active operators in the US are pressing the limits of horizontal technology to ramp up Cretaceous Austin chalk exploration and development (E and D) across Louisiana. Companies find applications in Louisiana for lessons learned drilling horizontal wells to produce chalk intervals in Texas in Giddings, Pearsall, and Brookeland fields. Continuing advances in horizontal well technology are helping operators deal with deeper, hotter reservoirs in more complex geological settings that typify the chalk in Louisiana. Better horizontal drilling, completion, formation evaluation, and stimulation techniques have enabled operators to produce oil and gas from formations previously thought to be uneconomical. Most of the improved capabilities stem from better horizontal tools. Horizontal drilling breakthroughs include dual powered mud motors and retrievable whipstocks, key links in the ability to drill wells with more than one horizontal lateral. Better geosteering tools have enabled operators to maintain horizontal wellbores in desired intervals by signaling bit positions downhole while drilling. This paper reviews the technology and provides a historical perspective on the various drilling programs which have been completed in this trend. It also makes predictions on future drilling successes.

  12. Hydrology of Fritchie Marsh, coastal Louisiana

    USGS Publications Warehouse

    Kuniansky, E.L.

    1985-01-01

    Fritchie Marsh, near Slidell, Louisiana, is being considered as a disposal site for sewage effluent. A two-dimensional, finite element, surface water modeling systems was used to solve the shallow water equations for flow. Factors affecting flow patterns are channel locations, inlets, outlets, islands, marsh vegetation, marsh geometry, stage of the West Pearl River, flooding over the lower Pearl River basin, gravity tides, wind-induced currents, and sewage discharge to the marsh. Four steady-state simulations were performed for two hydrologic events at two rates of sewage discharge. The events, near tide with no wind or rain and neap tide with a tide differential across the marsh, were selected as worst-case events for sewage effluent dispersion and were assumed as steady state events. Because inflows and outflows to the marsh are tidally affected, steady state simulations cannot fully define the hydraulic characteristics of the marsh for all hydrologic events. Model results and field data indicate that, during near tide with little or no rain, large parts of the marsh are stagnant; and sewage effluent, at existing and projected flows, has minimal effect on marsh flows. (USGS)

  13. 75 FR 45680 - Louisiana Disaster #LA-00031

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-03

    ... adversely affected by the disaster: Primary Parishes: Madison. Contiguous Parishes/Counties: Louisiana: East Carroll, Franklin, Richland, Tensas. Mississippi: Warren. The Interest Rates are: Percent For Physical...

  14. 76 FR 27740 - Louisiana Disaster # LA-00037

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-12

    ... determined to be adversely affected by the disaster: Primary Parish: Tensas. Contiguous Parishes/Counties: Louisiana, Catahoula, Concordia, Franklin, Madison, Mississippi, Adams, Claiborne, Jefferson, Warren. The...

  15. Vegetation types in coastal Louisiana in 2013

    USGS Publications Warehouse

    Sasser, Charles E.; Visser, Jenneke M.; Mouton, Edmond; Linscombe, Jeb; Hartley, Steve B.

    2014-01-01

    During the summer of 2013, the U.S. Geological Survey, Louisiana State University, University of Louisiana at Lafayette, and the Louisiana Department of Wildlife and Fisheries Coastal and Nongame Resources Division jointly completed an aerial survey to collect data on 2013 vegetation types in coastal Louisiana. Plant species were listed and their abundance classified. On the basis of species composition and abundance, each marsh sampling station was assigned a marsh type: fresh, intermediate, brackish, or saline (saltwater) marsh. The current map presents the data collected in this effort.

  16. Pancreatic cancer mortality in Louisiana.

    PubMed Central

    Pickle, L W; Gottlieb, M S

    1980-01-01

    As a preliminary step in the investigation of high pancreas-cancer mortality among White males in a cluster of Louisiana parishes, we examined 876 pairs of certificates of death which occurred in this area during 1960--75. The pancreas-cancer death records were matched to controls by age, race, sex, year of death, and parish of residence. The odds ratios were increased about two-fold for workers in the oil refining and paper manufacturing industries, and slight elevations were seen among residents near refineries and food processing plants. Despite the limited residential and occupational information available on death certificates, this study suggests leads to environmental factors that can be further investigated by a case-control interview study in Louisiana. PMID:7356088

  17. View of Gulf coast area of Louisiana from Skylab space station

    NASA Technical Reports Server (NTRS)

    1974-01-01

    A vertical view of the Gulf coast area of Louisiana (29.0N, 92.0W) as seen from the Skylab space station in Earth orbit. A Skylab 4 crewman used a hand-held 70mm Hasselblad camera to take this picture. This view extends from White Lake and Pecan Island (bottom border) eastward to the Mississippi River delta (top left). Atchafalaya Bay (red) is in the center. The Bayou Teche area is included in this view. A prominent feature of this photograph is two large white smoke plumes extending from Louisiana south into the Gulf of Mexico. The larger smoke plume originates on the southern shore of Vermillion Bay. The other plume extends from the southern shore of Marsh Island. The prononced narrow width and length of the plumes indicate that a strong offshore wind is present. Approximately 100 miles of the plumes are visible in this photograph; but they probably extend well into the Gulf of Mexico.

  18. View of Gulf coast area of Louisiana from Skylab space station

    NASA Technical Reports Server (NTRS)

    1974-01-01

    A vertical view of the Gulf coast area of Louisiana (29.0N, 92.0W) as seen from the Skylab space station in Earth orbit. A Skylab 4 crewman used a hand-held 70mm Hasselblad camera to take this picture. This view extends from White Lake and Pecan Island (bottom border) eastward to the Mississippi River delta (top left). Atchafalaya Bay (red) is in the center. The Bayou Teche area is included in this view. A prominent feature of this photograph is two large white smoke plumes extending from Louisiana south into the Gulf of Mexico. The larger smoke plume originates on the southern shore of Vermillion Bay. The other plume extends from the southern shore of Marsh Island. The prononced narrow width and length of the plumes indicate that a strong offshore wind is present. Approximately 100 miles of the plumes are visible in this photograph; but they probably extend well into the Gulf of Mexico.

  19. Hurricane Katrina deaths, Louisiana, 2005.

    PubMed

    Brunkard, Joan; Namulanda, Gonza; Ratard, Raoult

    2008-12-01

    Hurricane Katrina struck the US Gulf Coast on August 29, 2005, causing unprecedented damage to numerous communities in Louisiana and Mississippi. Our objectives were to verify, document, and characterize Katrina-related mortality in Louisiana and help identify strategies to reduce mortality in future disasters. We assessed Hurricane Katrina mortality data sources received in 2007, including Louisiana and out-of-state death certificates for deaths occurring from August 27 to October 31, 2005, and the Disaster Mortuary Operational Response Team's confirmed victims' database. We calculated age-, race-, and sex-specific mortality rates for Orleans, St Bernard, and Jefferson Parishes, where 95% of Katrina victims resided and conducted stratified analyses by parish of residence to compare differences between observed proportions of victim demographic characteristics and expected values based on 2000 US Census data, using Pearson chi square and Fisher exact tests. We identified 971 Katrina-related deaths in Louisiana and 15 deaths among Katrina evacuees in other states. Drowning (40%), injury and trauma (25%), and heart conditions (11%) were the major causes of death among Louisiana victims. Forty-nine percent of victims were people 75 years old and older. Fifty-three percent of victims were men; 51% were black; and 42% were white. In Orleans Parish, the mortality rate among blacks was 1.7 to 4 times higher than that among whites for all people 18 years old and older. People 75 years old and older were significantly more likely to be storm victims (P < .0001). Hurricane Katrina was the deadliest hurricane to strike the US Gulf Coast since 1928. Drowning was the major cause of death and people 75 years old and older were the most affected population cohort. Future disaster preparedness efforts must focus on evacuating and caring for vulnerable populations, including those in hospitals, long-term care facilities, and personal residences. Improving mortality reporting

  20. Smart Bodies: Louisiana Responds to Youth Overweight

    ERIC Educational Resources Information Center

    Murphy, Ellen P.; Holston, Denise; Tuuri, Georgianna

    2005-01-01

    In Louisiana, it is estimated that almost 33% of school-age children are at risk for becoming overweight or are already overweight (Louisiana Office of Public Health, 2004). Studies have shown that poor nutrition, physical inactivity, and weight problems often associated with being overweight adversely affect academic performance in school…

  1. State Education Finance and Governance Profile: Louisiana

    ERIC Educational Resources Information Center

    Shaikh, Naveed A.

    2010-01-01

    This article presents Louisiana's education finance and governance profile. Louisiana witnessed a 3.9% decline in population during the period from 2000 to 2007. Poverty persists both in urban and rural areas of the state, as demonstrated by visible poverty both in the agricultural parishes and in major cities such as New Orleans and Shreveport…

  2. 77 FR 55890 - Louisiana Disaster # LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for the State of Louisiana...

  3. 77 FR 30349 - Louisiana Disaster #LA-00044

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-22

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00044 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Louisiana dated...

  4. 76 FR 55155 - Louisiana Disaster # LA-00039

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-06

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00039 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Louisiana dated...

  5. 76 FR 30225 - Louisiana Disaster #LA-00035

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-24

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00035 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Louisiana dated...

  6. 75 FR 3764 - Louisiana Disaster # LA-00029

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-22

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00029 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Louisiana dated...

  7. 77 FR 30350 - Louisiana Disaster #LA-00045

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-22

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00045 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Louisiana dated...

  8. 76 FR 33804 - Louisiana Disaster #LA-00038

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-09

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00038 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Louisiana dated...

  9. 78 FR 36290 - Louisiana Disaster #LA-00051

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-17

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00051 AGENCY: U.S. Small Business Administration. ACTION: Notice SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Louisiana Dated:...

  10. 50 CFR 32.37 - Louisiana.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 50 Wildlife and Fisheries 9 2014-10-01 2014-10-01 false Louisiana. 32.37 Section 32.37 Wildlife and Fisheries UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR (CONTINUED) THE NATIONAL WILDLIFE REFUGE SYSTEM HUNTING AND FISHING Refuge-Specific Regulations for Hunting and Fishing § 32.37 Louisiana. The following refuge units hav...

  11. Louisiana forest industries: 1946-1971

    Treesearch

    P. Irland

    1973-01-01

    Louisiana is a prominent supplier of forest products to the nation. In 1971, it was the third leading state in output of softwood plywood, third in pulp production, and third in paper and paperboard. Louisiana ranked tenth in production of hardwood lumber, and thirteenth in all lumber. This article describes development of forest industries in the state since World War...

  12. Catholic Schools: A First in Louisiana.

    ERIC Educational Resources Information Center

    McDermott, Monica L.; Hunt, Thomas C.

    1991-01-01

    Offers a brief history of Louisiana, highlighting the establishment of Catholic schools by missionaries before the development of public schools. Covers the French and Spanish, and Black Catholics in Louisiana, the Code Noir and the missionary church, the beginning of public schooling, north Louisianan schools, and the civil war. (DMM)

  13. Louisiana Folklife: A Guide to the State.

    ERIC Educational Resources Information Center

    Spitzer, Nicholas R., Ed.

    Louisiana is composed of a vast array of traditional cultures and activities. This resource directory to Louisiana folk arts and folk communities aims to promote better understanding and preservation of the cultural settings and meanings of those things already well known and to explicate the lesser-known activities that comprise living folk…

  14. Politician of the Year 2008: Lifting Louisiana

    ERIC Educational Resources Information Center

    Berry, John N., III

    2008-01-01

    This article features Mitch Landrieu and his contributions to the upliftment of Louisiana through libraries. After the onslaught of hurricanes Katrina and Rita, Landrieu said they realized how important libraries are. Now in his second term as lieutenant governor of Louisiana, Landrieu oversees the Office of the State Library along with the…

  15. Managing damaging freeze events in Louisiana sugarcane

    USDA-ARS?s Scientific Manuscript database

    Exposure of sugarcane to damaging frosts occurs in approximately 25% of the sugarcane producing countries of the world, but is most frequent on the mainland of the United States, especially in the state of Louisiana. The frequent winter freezes that occur in the sugarcane areas of Louisiana have fo...

  16. Louisiana's Blueprint for Investing in Youth.

    ERIC Educational Resources Information Center

    Louisiana Youth Policy Network.

    Having recognized that young people under 25 years of age were among the state's greatest resources, the Louisiana Workforce Commission convened ten state agencies to form the Youth Policy Network (LYPN) to develop an interagency collaboration to help Louisiana youth acquire the necessary skills for success in education and employment. The LYPN…

  17. Unique cover crops for Louisiana sugarcane

    USDA-ARS?s Scientific Manuscript database

    Louisiana sugarcane production practices provide a tremendous opportunity for the use of cover crops following the final sugarcane harvest in the fall of one year and prior to replanting sugarcane during the summer of the next year. A Louisiana sugarcane field is typically replanted every four years...

  18. State Education Finance and Governance Profile: Louisiana

    ERIC Educational Resources Information Center

    Shaikh, Naveed A.

    2010-01-01

    This article presents Louisiana's education finance and governance profile. Louisiana witnessed a 3.9% decline in population during the period from 2000 to 2007. Poverty persists both in urban and rural areas of the state, as demonstrated by visible poverty both in the agricultural parishes and in major cities such as New Orleans and Shreveport…

  19. Smart Bodies: Louisiana Responds to Youth Overweight

    ERIC Educational Resources Information Center

    Murphy, Ellen P.; Holston, Denise; Tuuri, Georgianna

    2005-01-01

    In Louisiana, it is estimated that almost 33% of school-age children are at risk for becoming overweight or are already overweight (Louisiana Office of Public Health, 2004). Studies have shown that poor nutrition, physical inactivity, and weight problems often associated with being overweight adversely affect academic performance in school…

  20. 40 CFR 81.412 - Louisiana.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Louisiana. 81.412 Section 81.412 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF... Visibility Is an Important Value § 81.412 Louisiana. Area name Acreage Public Law establishing Federal...

  1. Louisiana Folklife: A Guide to the State.

    ERIC Educational Resources Information Center

    Spitzer, Nicholas R., Ed.

    Louisiana is composed of a vast array of traditional cultures and activities. This resource directory to Louisiana folk arts and folk communities aims to promote better understanding and preservation of the cultural settings and meanings of those things already well known and to explicate the lesser-known activities that comprise living folk…

  2. Politician of the Year 2008: Lifting Louisiana

    ERIC Educational Resources Information Center

    Berry, John N., III

    2008-01-01

    This article features Mitch Landrieu and his contributions to the upliftment of Louisiana through libraries. After the onslaught of hurricanes Katrina and Rita, Landrieu said they realized how important libraries are. Now in his second term as lieutenant governor of Louisiana, Landrieu oversees the Office of the State Library along with the…

  3. Participants Assess the Louisiana Consent Decree.

    ERIC Educational Resources Information Center

    Ginsberg, Rick; Carter, Marie

    1988-01-01

    Analysis of 602 administrators, faculty, and students from Louisiana's public universities revealed attitudes about the Louisiana Consent Decree (LCD) to preserve Black institutions, including the following: (1) Blacks are more positive than Whites about the LCD; (2) LCD has caused more cooperation among Black and White schools; and (3) many are…

  4. Louisiana Public School Library Collection Assessment.

    ERIC Educational Resources Information Center

    Perritt, Patsy H.

    During the 1991-92 school year, 109 public school library book collections in Louisiana were surveyed to determine the average ages of volumes in various categories, including all Dewey decimal numbers. Results showed that the average age of books in Louisiana public school libraries was 23.51 years in 1992. The average age of the computerized…

  5. 76 FR 20034 - Louisiana All Snax, Inc.; Dismissal of Proceeding

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-11

    ... Enforcement Administration Louisiana All Snax, Inc.; Dismissal of Proceeding On January 21, 2010, the Deputy... Show Cause to Louisiana All Snax, Inc. (Respondent), of Baton Rouge, Louisiana. The Show Cause Order... Louisiana All Snax, Inc., be, and it hereby is, dismissed. This order is effective immediately. Dated: April...

  6. Water Use in Louisiana, 2010

    USGS Publications Warehouse

    Sargent, B. Pierre

    2011-01-01

    In 2010, approximately 8,500 million gallons per day (Mgal/d) of water was withdrawn from groundwater and surface-water sources in Louisiana. Total groundwater withdrawals were about 1,600 Mgal/d, and total surfacewater withdrawals were about 7,000 Mgal/d. From 2005 to 2010, groundwater withdrawals in Louisiana increased by 1.8 percent, and surface-water withdrawals decreased by 19 percent. Total water withdrawals in Louisiana decreased by 17 percent from 2005 to 2010. Water withdrawal totals in Mgal/d in 2010 for various categories of use were as follows: public supply-750, industry-2,100, power generation-4,400, rural domestic-41, livestock-8.0, rice irrigation-690, general irrigation-240, and aquaculture-300. From 2005 to 2010, changes in withdrawals, in percent, for the categories of use were as follows: public supply increased by 3.7, industry decreased by 33, power generation decreased by 14, rural domestic decreased by 6.1, livestock was unchanged, rice irrigation decreased by 13, general irrigation increased by 17, and aquaculture increased by 12. Forty-one percent (about 650 Mgal/d) of all groundwater was withdrawn from the Chicot aquifer system, and 25 percent (about 390 Mgal/d) was withdrawn from the Mississippi River alluvial aquifer. Since 2005, withdrawals from the Chicot aquifer system decreased by 2.1 percent, and withdrawals from the Mississippi River alluvial aquifer increased by 2.7 percent. About 72 percent (5,000 Mgal/d) of all surface water withdrawn was from the Mississippi River mainstem. This value represents a 24 percent decrease in withdrawals from 2005 to 2010.

  7. Stennis Space Center, State of Louisiana Extend Partnerships

    NASA Image and Video Library

    2003-10-07

    NASA Stennis Space Center (SSC) Interim Center Director Michael Rudolphi (second from right) presents Louisiana Gov. Mike Foster (second from left) an image from space of the area that comprised the Louisiana Purchase. Gov. Foster and Rudolphi signed a Memorandum of Understanding (MOU) between SSC and the state of Louisiana to promote technology transfer partnerships. Also pictured are Charles D'Agostino (left), executive director of the Louisiana Business and Technology Center, and Don Hutchison, secretary of the Louisiana Department of Economic Development.

  8. Gibsland salt-stock family in northwestern Louisiana

    SciTech Connect

    Saucier, A.E.

    1984-09-01

    A semiregional isopach map of the Hosston-Sligo interval in north Louisiana suggests the existence of a salt-stock family similar to D. Sanneman's example in the Zechstein basin of northwestern Germany. The mother salt stock appears to be the Gibsland salt dome in Bienville Parish, which the isopach map indicates had a well-developed rim syncline during Hosston deposition. Withdrawal of salt into the Gibsland dome appears to have triggered the growth of peripheral salt pillows such as Vacherie, Minden, Athens, Sugar Creek, and Arcadia. Some of these pillows subsequently developed into salt stocks. The centrifugal or outward growth of salt structures continued with the withdrawal of salt from beneath the Minden subbasin into the Minden and Bistineau salt domes. This accentuated growth of the Sligo, Bellevue, and Cotton Valley salt pillows, which in turn triggered development of the Pine Island salt pillow in latest Early Cretaceous time. The growth of the salt structures progressed outward from deeper to shallower portions of the North Louisiana salt basin. An older salt-stock family may be centered on the Winnfield or Cedar Creek salt domes in the deepest part of the salt basin. Centrifugal growth of these stock should be discernible in seismic profiles. A knowledge of the relative ages of these structures is important in predicting sites of Lower Cretaceous reefs and hydrocarbon migration paths.

  9. Marsh management in coastal Louisiana: Effects and issues

    SciTech Connect

    Duffy, W.G. ); Clark, D. . Coastal Management Div.)

    1989-09-01

    The marshes of coastal southeast Louisiana occur over an area that constitutes about 60% of the Mississippi River Deltaic Plain complex, the newest land added to the Gulf Coastal Region during the past few thousand years. Part 1 of this paper consists of a brief description of the deltaic plain complex. Part 2 is concerned with the description of the coastal bays, sounds, transgressive barrier islands, and offshore shoals which are related to the delta complex. Part 3 discusses 51 significant papers on the delta complex which have been written during the past 58 years. Part 4 is a brief summary of the origin and development of the coastal region of southeast Louisiana based upon the research outlined above. Illustrations show how the mighty Mississippi River created about 14,000 mi{sup 2} of new land in the Gulf of Mexico, in the form of a series of deltas, during the past 7,000 years. Attention is also subsidence of abandoned delta sediments, which permitted the gulf to move in inland and reclaim about 7,000 mi{sup 2} of this new land. This volume contains 37 papers. Individual papers are indexed separately on the energy data base.

  10. Geology and underground water resources of northern Louisiana and southern Arkansas

    USGS Publications Warehouse

    Veatch, A.C.

    1906-01-01

    In the fall of 1902 arrangements were made with the Geological Survey of Louisiana for the writer to prepare a report on the geology and underground water resources of northern Louisiana. In the prosecution of this work it was found necessary, in order that the questions involved might be more thoroughly understood, to include that portion of the Coastal Plain in southern Arkansas southwest of Arkansas River, and the portion of northeastern Texas not discussed in Hill's exhaustive report on the artesian-water conditions of the Black and Grand prairies a After the Arkansas work was well in hand and before the Texas investigation had advanced beyond a few preliminary letters the writer was detailed to the Long Island, New York, investigation, which consumed the field and office time from February, 1903, to July, 1904.b The present report is thus based on the'field work of the fall and winter of 1902 and 1903, supplemented by several years' field work with the Geological Survey of Louisiana and private work in eastern Texas. It covers southern Arkansas and northern Louisiana and small portions of adjacent areas in Mississippi and Texas.

  11. Coastal Louisiana Wetlands Restoration Monitoring with Global Fiducials Program (GFP) Imagery

    NASA Astrophysics Data System (ADS)

    Fisher, G.

    2012-12-01

    Coastal Louisiana has experienced dramatic landscape change over the past century due to human induced changes to the environment as well as an onslaught of major coastal storms. Coastal Louisiana loses on average 25-35 square miles of land per year. The USGS has partnered with the National Oceanographic and Atmospheric Administration (NOAA) - National Marine Fisheries Service to provide cyclical remote sensing data for selected restoration sites along the coast of Louisiana. Three of these sites are actively maintained in the GFP archive - Atchafalaya River Delta, East Timbalier Island, and Pecan Island. These three sites coincide with NOAA restoration sites that have been monitored since early 2000. The GFP has provided a consistent set of remote sensing data that has greatly benefited the long-term monitoring of these restoration sites. Long-term monitoring of these sites includes both pre- and post-hurricane season data collection used to identify landscape change along the coast. The long-term monitoring also has helped to identify areas of success in the restoration projects, as well as areas that have continued to decline in spite of restoration efforts. These three sites are significant to the program because they provide a variety of coastal landscape types: an open water barrier island environment at East Timbalier Island; coastal wetlands at Pecan Island, which have experienced subsidence of the marsh and convergence to an open water environment; and a deltaic marsh environment at Atchafalaya River Delta. Long-term monitoring of these sites has provided a wealth of knowledge about the changes occurring, as well as a valuable tool for reliable shoreline measurements. Continued monitoring is necessary to accurately assess the condition of these areas as environmental conditions continue to shape the landscape.

  12. West Nile Virus Economic Impact, Louisiana, 2002

    PubMed Central

    Meltzer, Martin I.; Ratard, Raoult; Billah, Kaafee; Molinari, Noelle A.; Roy, Kakoli; Scott, R. Douglas; Petersen, Lyle R.

    2004-01-01

    West Nile virus (WNV) is transmitted by mosquitoes and can cause illness in humans ranging from mild fever to encephalitis. In 2002, a total of 4,156 WNV cases were reported in the United States; 329 were in Louisiana. To estimate the economic impact of the 2002 WNV epidemic in Louisiana, we collected data from hospitals, a patient questionnaire, and public offices. Hospital charges were converted to economic costs by using Medicare cost-to-charge ratios. The estimated cost of the Louisiana epidemic was $20.1 million from June 2002 to February 2003, including a $10.9 million cost of illness ($4.4 million medical and $6.5 million nonmedical costs) and a $9.2 million cost of public health response. These data indicate a substantial short-term cost of the WNV disease epidemic in Louisiana. PMID:15504258

  13. Louisiana State University Libraries' Electronic Imaging Laboratory.

    ERIC Educational Resources Information Center

    Phillips, Faye; Condrey, Richard

    1994-01-01

    Describes Louisiana State University Libraries' Electronic Imaging Laboratory for preservation. The project uses digital imaging technology to reformat rare book materials for access. This technology can exist with traditional conservation procedures. (JLB)

  14. Louisiana Tech Student Wins EPA Fellowship Grant

    EPA Pesticide Factsheets

    DALLAS - (April 1, 2015) A student from Louisiana Technical University in Ruston, La., was awarded a research fellowship grant by the U.S. Environmental Protection Agency (EPA). EPA issued fellowship grants to students pursuing environmental science

  15. Guide to Louisiana's ground-water resources

    USGS Publications Warehouse

    Stuart, C.G.; Knochenmus, D.D.; McGee, B.D.

    1994-01-01

    Ground water is one of the most valuable and abundant natural resources of Louisiana. Of the 4-.4 million people who live in the State, 61 percent use ground water as a source for drinking water. Most industrial and rural users and half of the irrigation users in the State rely on ground water. Quantity, however, is not the only aspect that makes ground water so valuable; quality also is important for its use. In most areas, little or no water treatment is required for drinking water and industrial purposes. Knowledge of Louisiana's ground-water resources is needed to ensure proper development and protection of this valuable resource. This report is designed to inform citizens about the availability and quality of ground water in Louisiana. It is not intended as a technical reference; rather, it is a guide to ground water and the significant role this resource plays in the state. Most of the ground water that is used in the State is withdrawn from 13 aquifers and aquifer systems: the Cockfield, Sparta, and Carrizo-Wilcox aquifersin northern Louisiana; Chicot aquifer system, Evangeline aquifer, Jasper aquifer system, and Catahoula aquifer in central and southwestern Louisiana; the Chicot equivalent, Evangeline equivalent, and Jasper equivalent aquifer systems in southeastern Louisiana; and the MississippiRiver alluvial, Red River alluvial, and upland terrace aquifers that are statewide. Ground water is affected by man's activities on the land surface, and the major ground-water concerns in Louisiana are: (1) contamination from surface disposal of hazardous waste, agricultural chemicals, and petroleum products; (2) contamination from surface wastes and saltwater through abandoned wells; (3) saltwater encroachment; and (4) local overdevelopment. Information about ground water in Louisiana is extensive and available to the public. Several State and Federal agencies provide published and unpublished material upon request.

  16. Topical reports on Louisiana salt domes

    SciTech Connect

    Not Available

    1983-09-01

    The Institute for Environmental Studies at Louisiana State University conducted research into the potential use of Louisiana salt domes for disposal of nuclear waste material. Topical reports generated in 1981 and 1982 related to Vacherie and Rayburn's domes are compiled and presented, which address palynological studies, tiltmeter monitoring, precise releveling, saline springs, and surface hydrology. The latter two are basically a compilation of references related to these topics. Individual reports are abstracted.

  17. Heat Islands

    EPA Pesticide Factsheets

    EPA's Heat Island Effect Site provides information on heat islands, their impacts, mitigation strategies, related research, a directory of heat island reduction initiatives in U.S. communities, and EPA's Heat Island Reduction Program.

  18. The Internet for Louisiana physicians.

    PubMed

    Ellis, M S

    2000-09-01

    Fewer than 50% of Louisiana physicians actively use the Internet, and many of them confine their usage to e-mailing among family and friends. The purpose of this article is to acquaint the reader with many of the benefits of exploiting the incredible potential of this technological invention. I provide addresses and information about sites that I believe warrant usage by our colleagues. Of the vast smorgasbord of data available we highlight educational Web sites for professionals and the public, how to determine credibility of information, clinical research of scientific articles, computer security, federal and state government sites, newspapers, political and socioeconomic functions, medical supply shops, e-mail and other computerized communication, electronic medical records, personal or professional Web sites, and future medical internet uses. It is hoped that this process will encourage nonparticipating colleagues to begin using this modality while also supplying sites that current users may not yet have discovered.

  19. K-12 Louisiana Student Standards for Mathematics. Louisiana Student Standards: Mathematics

    ERIC Educational Resources Information Center

    Louisiana Department of Education, 2016

    2016-01-01

    The Louisiana mathematics standards were created by over one hundred Louisiana educators with input by thousands of parents and teachers from across the state. Educators envisioned what mathematically proficient students should know and be able to do to compete in society and focused their efforts on creating standards that would allow them to do…

  20. Bibliographies of Louisiana State University Theses Pertaining to Louisiana 1955-1980.

    ERIC Educational Resources Information Center

    Lane, Mary Jane, Comp.

    Louisiana State University has long been a research center for the study of the state of Louisiana. Originally prepared as two separate bibliographies, 1955-1969 and 1970-1980, this document includes both bibliographies and a subject index. Each entry includes the author's name, title of the thesis, date of the thesis, and the major subject area.…

  1. Isabela Island, Galapagos Islands

    NASA Image and Video Library

    1996-01-20

    STS072-732-072 (11-20 Jan. 1996) --- Three of the nineteen Galapagos Islands are visible in this image, photographed from the Earth-orbiting Space Shuttle Endeavour. The Galapagos Islands are located 600 miles (1,000 kilometers) to the west of Ecuador. The largest of the islands, Isabela, is at center (north is toward the upper right corner). The numerous circular features on the island, highlighted by clouds, are volcanoes. The Galapagos Islands owe their existence to a hot spot, or persistent heat source in the mantle, which also is located over a rift, or place where plates are separating and new crust is being created. The rift is located between the Cocos and Nazca Plates. The dark linear features on the islands are lava flows from past eruptions. The island to the left of Isabela is Fernandina, while the island to the right is San Salvador. The Galapagos Islands were visited by the English naturalist Charles Darwin in 1835.

  2. Cultural Resources Investigations on Grand Terre Island, Jefferson Parish, Louisiana.

    DTIC Science & Technology

    1995-11-01

    preserved within the study area, which encompassed 181 acres. A systematic program of shovel testing, augering, probing, magnetometer survey, metal ... detector survey, and canal wire drag was then undertaken in high probability areas. No new sites were identified as a result of this effort. In addition

  3. Master Plan for Public Postsecondary Education in Louisiana: 2011. Revised

    ERIC Educational Resources Information Center

    Louisiana Board of Regents, 2012

    2012-01-01

    Article VIII of Louisiana's Constitution authorizes the Board of Regents (BoR) to develop a master plan for higher education in Louisiana. This Master Plan provides a broad vision for the State's higher education system and acknowledges its interdependence with the economy and its many contributions towards better lives for Louisiana's citizenry.…

  4. Fait A La Main: A Source Book of Louisiana Crafts.

    ERIC Educational Resources Information Center

    Bergeron, Maida, Ed.

    The Louisiana Crafts Program is an economic development program that strives to stimulate several markets for Louisiana craftsmen. This publication is a directory of juried Louisiana craftsmen of various types; it is intended as a source book for anyone interested in handmade crafts. It is divided into two sections: "Folk Craftsmen" and…

  5. Louisiana KIDS COUNT Special Report on Child Care, 2006

    ERIC Educational Resources Information Center

    Agenda for Children, 2006

    2006-01-01

    The "2006 Agenda for Children Louisiana Kids Count Special Report on Child Care" documents and describes the supply and affordability of child care and early education in each of Louisiana's 64 parishes. Seventy-eight percent (78%) of Louisiana's children under the age of five are cared for by someone other than a parent or guardian on a…

  6. Risk assessment for produced water discharges to Louisiana Open Bays

    SciTech Connect

    Meinhold, A.F.; DePhillips, M.P.; Holtzman, S.

    1995-06-23

    Data were collected prior to termination of discharge at three sites (including two open bay sites at Delacroix Island and Bay De Chene) for the risk assessments. The Delacroix Island Oil and Gas Field has been in production since the first well drilling in 1940; the Bay De Chene Field, since 1942. Concentrations of 226Ra, 228Ra, 210Po, and 228Th were measured in discharges. Radium conc. were measured in fish and shellfish tissues. Sediment PAH and metal conc. were also available. Benthos sampling was conducted. A survey of fishermen was conducted. The tiered risk assessment showed that human health risks from radium in produced water appear to be small; ecological risk from radium and other radionuclides in produced water also appear small. Many of the chemical contaminants discharged to open Louisiana bays appear to present little human health or ecological risk. A conservative screening analysis suggested potential risks to human health from Hg and Pb and a potential risk to ecological receptors from total effluent, Sb, Cd, Cu, Pb, Ni, Ag, Zn, and phenol in the water column and PAHs in sediment; quantitiative risk assessments are being done for these contaminants.

  7. Multiple Stressors: Lessons from Louisiana Coastal Waters (Invited)

    NASA Astrophysics Data System (ADS)

    Rabalais, N. N.

    2013-12-01

    Coastal Louisiana is a Mississippi River-dominated landscape driven by the long-term (millennia) and short-term (decades to hundreds of years) changes in materials flux, nature and human activities. The results are a highly productive coastal landscape and nearshore coastal waters that support rich natural and non-renewable resources. The ecosystem and socio-economic systems are intimately linked. Several factors have led to the demise of many of the healthy features of this coastal system, including long-term changes in the landscape of the Mississippi River basin watershed, alterations to the structure and flow of the Mississippi River and its tributaries, coastal landscape alterations leading to loss of productive marshes and protective barrier islands, increases in nitrogen and phosphorus loads to the coastal ocean and their detrimental effects, and reduction in the sediments delivered by the river. Increases in population and extraction of living resources and oil and gas reserves continue to drive many actions taken in the coastal landscape and waters. As a result, Louisiana is in a state of major disrepair (to be charitable) and needs thoughtful consideration of restoration actions taken in the river basin and within the coastal landscape. The first thought is to cause no further harm. The second is to proceed acknowledging that human and natural forces (particularly climate change, rising sea level and changing global economies) must be taken into account. Thirdly, a broader consideration of the river basin and coastal landscapes, their interconnectivity, and ecosystem health and social welfare must be taken into account.

  8. Pilot oil atlas for Louisiana. Final report

    SciTech Connect

    Bourgoyne, A.T. Jr.; Kimbrell, C.; Gao, Weigang

    1993-01-01

    An interdisciplinary research team of engineers, geologists, and computer scientists was assembled at LSU to develop unproved methods for prospecting for bypassed oil and to support oil and gas producers in Louisiana. The overall objective of the project was to develop methods for extending the producing life of several types of reservoirs by reducing the amount of oil being bypassed and abandoned. As part of this work, the team collected information available from public sources for several example reservoirs. One task of the project was to develop a format for the compilation of the extensive but cumbersome Louisiana reservoir data so that it could be used by government and industry to evaluate the resource and plan future activities. The existing information system maintained by Louisiana is a Production Audit Reporting System (PARS). It was designed to allow auditing of oil and gas production and severance taxes associated with this production. It was not intended to be used as a database for determining reservoir recovery efficiency or prospecting for oil and gas. Its use for these purposes, however, has been increasing. The database format suggested in this report would allow production information to be easily displayed by reservoir as well as by lease, unit, or well. The data collected as part of the bypassed-oil study was used to illustrate the proposed new format. This pilot database, or atlas, contains information available for 15 reservoirs. It is recommended that LSU continue to compile and publish database information on the potential for bypassed oil in Louisiana`s active reservoirs. This technology-transfer activity should focus each year on those active reservoirs involved in hearings of the Louisiana Office of Conservation. It should also focus on reservoirs being screened by LSU for EOR.

  9. Kerguelen Islands

    NASA Image and Video Library

    2014-05-27

    This image from NASA Terra spacecraft shows the Kerguelen Islands also known as the Desolation Islands, which are part of the French Southern and Antarctic lands. The islands are among the most isolated places on Earth.

  10. Notes on Bachman's sparrow in Central Louisiana

    USGS Publications Warehouse

    Meanley, B.

    1959-01-01

    Notes on the ecology of Bachman’s Sparrow (Aimophila aestivalis) were obtained during a study of birds in relation to the direct or artificial seeding of Longleaf Pine (Pinus palustris) and Loblolly Pine (P. taeda) in central Louisiana from 1955 to 1957. Stoddard (in Burleigh, “Georgia Birds,” pp. 667-668, 1958) has presented an account of the ecology of this species in the pine woods of southern Georgia. Detailed studies in Louisiana have not been reported. Observations were made on experimental lands of the Kisatchie National Forest, about 25 miles southwest of Alexandria, Rapides Parish.

  11. Mortality experience for Louisiana chemical workers.

    PubMed

    Burns, C J; McLaury, R L; Jammer, B L; Cartmill, J B

    1999-01-01

    A previous mortality study for Louisiana workers of The Dow Chemical Company identified greater than expected deaths due to leukemia and aleukemia and cancer of the brain and central nervous system. The current study updated the mortality experience through 1992. No new deaths due to leukemia and aleukemia and only one new death due to cancer of the brain and central nervous system were observed. No causes of death were statistically significantly elevated. The number of observed deaths was statistically significantly less than expected for a number of disease categories. Mortality rates were not shown to be higher among Louisiana chemical employees when compared to the United States, state, and regional populations.

  12. Shoreline evolution from 1945 to 1988 at Grand Isle, Louisiana

    SciTech Connect

    Bencaz, C.A.; Birdseye, R.U. )

    1990-09-01

    Louisiana is losing over 55 mi{sup 2} of its coast annually owing to natural processes and many forms of human intervention. Sand bodies are especially impacted in the Mississippi Delta Plain where Grand Isle, the state's only inhabited barrier island, is located. Trends in erosion and deposition on Grand Isle were evaluated using aerial photographs acquired in 1945, 1949, 1956, 1958, 1963, 1964, 1965, 1966, 1971, 1976, 1978, 1982, 1986, and 1988. Shoreline changes in 14 different zones on the island were calculated for each set of aerial photographs and summarized on maps and in tables. Geological interpretations, meteorological data, and historical records helped to explain the patterns of change. The major factors contributing to shoreline changes at Grand Isle are: (1) The nature of the unprotected sediments forming the margins of the island. Unstabilized shorelines include slopes composed largely of sand, tidal marsh, sand and shell beaches, and recently dredged fill. (2) Shoreline orientation with respect to wave fetch, prevailing wind directions, and approaching storms. (3) Duration and magnitude of major storms. (4) Local weather, along with regional and worldwide climate. (5) Relative sea-level rise, owing to subsidence of the Mississippi Delta Plain sediments from compaction, consolidation, and isostatic adjustment, as well as to a currently rising global sea level. The rate of relative sea level rise at Grand Isle averages 0.41 in./year. (6) Sediment deprivation, largely owing to human influences such as dams, reservoirs, artificial levees, and control structures located in the Mississippi drainage basin, alluvial valley, and delta plain. (7) Disruption of longshore drift by construction and orientation of jetties, groins, and breakwaters. (8) Beach nonfishment and marsh infilling by humans.

  13. Geologic framework, evolution, and sediment resources for restoration of the Louisiana Coastal Zone

    USGS Publications Warehouse

    Kulp, Mark; Penland, Shea; Williams, S. Jeffress; Jenkins, Chris; Flocks, Jim; Kindinger, Jack

    2005-01-01

    The Louisiana Coastal Zone along the north-central Gulf of Mexico represents one of America's most important coastal ecosystems in terms of natural resources, human infrastructure, and cultural heritage. This zone also has the highest rates of coastal erosion and wetland loss in the nation because of a complex combination of natural processes and anthropogenic activities during the past century. In response to the dramatic land loss, regional-scale restoration plans are being developed through a partnership of federal and state agencies. One objective is to maintain the barrier island and tidal inlet systems, thereby reducing the impact of storm surge and interior wetland loss. Proposed shore line restoration work relies primarily upon the use of large volumes of sand-rich sediment for shoreline stabilization and the implementation of the shoreline projects. Although sand-rich sediment is required for the Louisiana restoration projects, it is of limited availability within the generally clay to silt-rich, shallow strata of the Louisiana Coastal Zone. Locating volumetrically significant quantities of sand-rich sediment presents a challenge and requires detailed field investigations using direct sampling and geophysical sensing methods. Consequently, there is a fundamental need to thoroughly understand and map the distribution and textural character {e.g., sandiness) of sediment resources within the Coastal Zone for the most cost-effective design and completion of restoration projects.

  14. Proceedings of the conference on coastal erosion and wetland modification in Louisiana: causes, consequences, and options

    USGS Publications Warehouse

    Boesch, Donald F.; Boesch, Donald F.

    1982-01-01

    This volume contains 16 papers and panel discussions from a conference held in Baton Rouge, La., 5-6 October 1981. The presentations consider the causes and consequences of coastal erosion and wetland modification in Louisiana and the mitigative options available to slow or reverse the rapid rate of coastal land loss. Detailed habitat mapping studies have allowed accurate estimates of coastal habitat change and land loss through 1978. Projections from these rates of change indicate an annual rate of land loss in coastal Louisiana in the early 1980's of approximately 130 km2/yr (50 m2/yr). The projected effects of wetland modification on the bountiful living resources of coastal Louisiana (fisheries, fur and hide bearers and waterfowl) are major because of the close dependence of these resources on estuarine wetlands. These changes and others related to flood protection, transportation and ownership of mineral resources are projected to have extensive social and economic consequences. Options proposed to slow coastal land loss include major and minor diversion of the Mississippi River, barrier island and shoreline restoration protection, hydrological management of wetlands and more restrictive permitting of dredging activities.

  15. Shallow gas reservoir in a Pleistocene transgressive sand sheet developed during the drowning of retrograde delta lobes, Louisiana continental shelf

    SciTech Connect

    Flakes, L.G.; Fillon, R.H.

    1996-12-31

    A strongly negative seismic amplitude discovered in our 3-D data set at 450 ms has been tied to the interface marking the top of a thick sand section ca. -1300 ft sub-sea. Sequence stratigraphic and stacking pattern analysis of SP and GR logs point to a Late Pleistocene low-stand delta bar origin for the thick, blocky sands in the lower part of the section. Resistivity data shows the delta bar sands are wet with salt water while an uppermost, thin sand member, capped by shale constituting a notable flooding surface, and potential vertical seal, exhibited a high resistivity signature. With other evidence, this is considered to reflect the presence of free gas in the sand`s pore spaces. An amplitude extraction made to evaluate the reservoir potential of the gas-charged sand member revealed a pattern consistent with three, deltaic lobes aligned along a former drainage axis. The mapped features are considered the result of retrograde delta migration and geomorphic evolution in response to rising sea levels late in the low stand. The upper, gas-charged sand member was interpreted, based on modern analogs, as a transgressive sand sheet containing a combination of facies related to the sub-environments of delta lobe destruction and flooding during rapid marine transgression, e.g.: re-worked barrier island; marine sand shoal; and, inner neuritic shelf sands. The Chandeleur Islands and Ship Shoal are modern examples of these features. Because of the relatively thin but widespread character and good sand quality expected for a transgressive sand sheet, this prospect was selected as a low-risk, low-cost candidate for horizontal drilling and completion.

  16. Shallow gas reservoir in a Pleistocene transgressive sand sheet developed during the drowning of retrograde delta lobes, Louisiana continental shelf

    SciTech Connect

    Flakes, L.G.; Fillon, R.H. )

    1996-01-01

    A strongly negative seismic amplitude discovered in our 3-D data set at 450 ms has been tied to the interface marking the top of a thick sand section ca. -1300 ft sub-sea. Sequence stratigraphic and stacking pattern analysis of SP and GR logs point to a Late Pleistocene low-stand delta bar origin for the thick, blocky sands in the lower part of the section. Resistivity data shows the delta bar sands are wet with salt water while an uppermost, thin sand member, capped by shale constituting a notable flooding surface, and potential vertical seal, exhibited a high resistivity signature. With other evidence, this is considered to reflect the presence of free gas in the sand's pore spaces. An amplitude extraction made to evaluate the reservoir potential of the gas-charged sand member revealed a pattern consistent with three, deltaic lobes aligned along a former drainage axis. The mapped features are considered the result of retrograde delta migration and geomorphic evolution in response to rising sea levels late in the low stand. The upper, gas-charged sand member was interpreted, based on modern analogs, as a transgressive sand sheet containing a combination of facies related to the sub-environments of delta lobe destruction and flooding during rapid marine transgression, e.g.: re-worked barrier island; marine sand shoal; and, inner neuritic shelf sands. The Chandeleur Islands and Ship Shoal are modern examples of these features. Because of the relatively thin but widespread character and good sand quality expected for a transgressive sand sheet, this prospect was selected as a low-risk, low-cost candidate for horizontal drilling and completion.

  17. 77 FR 58902 - Louisiana Disaster #LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 7. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  18. 76 FR 68805 - Louisiana Disaster #LA-00043

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-07

    ... [Federal Register Volume 76, Number 215 (Monday, November 7, 2011)] [Notices] [Page 68805] [FR Doc No: 2011-28703] SMALL BUSINESS ADMINISTRATION [Disaster Declaration 12904 and 12905] Louisiana Disaster LA-00043 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice...

  19. 78 FR 14149 - Louisiana Disaster #LA-00050

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-04

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00050 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for Public Assistance Only for...

  20. 76 FR 54522 - Louisiana Disaster #LA-00041

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-01

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster LA-00041 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a Notice of the Presidential declaration of a major disaster for Public Assistance Only for...

  1. Evaluation of the Louisiana Nutrition Education Program.

    ERIC Educational Resources Information Center

    Jones, J. H., Jr.

    In 1969, 385 Louisiana Cooperative Extension Service aides conducted an eight week nutrition education program (expanded to 12 weeks in three parishes) for over 18,000 low income homemakers and children in 31 parishes. Initial interviews were used to ascertain nutrition habits and influences thereon, knowledge levels, homemakers' age and…

  2. Unique cropping systems for Louisiana sugarcane

    USDA-ARS?s Scientific Manuscript database

    A Louisiana sugarcane field is typically replanted every four years due to declining yields, and, although, it is a costly process, it is both necessary and an opportunity to maximize the financial return during the next four year cropping cycle. Fallow planting systems (FPS) during the fallow perio...

  3. Hybrid Computation at Louisiana State University.

    ERIC Educational Resources Information Center

    Corripio, Armando B.

    Hybrid computation facilities have been in operation at Louisiana State University since the spring of 1969. In part, they consist of an Electronics Associates, Inc. (EAI) Model 680 analog computer, an EAI Model 693 interface, and a Xerox Data Systems (XDS) Sigma 5 digital computer. The hybrid laboratory is used in a course on hybrid computation…

  4. Forest statistics for Southwest Louisiana parishes - 1991

    Treesearch

    James F. Rosson; Patrick E. Miller; John S. Vissage

    1991-01-01

    Tabulated results were derived from data obtained from a 1991 continuous forest inventory of Southwest Louisiana parishes (fig. I). Core tables (1 to 25) are compatible among Forest Inventory and Analysis units in Eastern U.S. Supplement tables (26 to 43) provide information beyond that provided by the core tables. All comparisons between the 1991 and 1984 surveys are...

  5. Forest-range resources of Southwest Louisiana

    Treesearch

    Herbert S. Sternitzke; Henry A. Pearson

    1975-01-01

    Findings of the first forest-range inventory of southwest Louisiana conducted as part of the nationwide Forest Survey are described and evaluated. Measurements indicate that the grazing potential of the region's forest ranges is not being fully used. Little competition with wildlife populations and timber stands is indicated at existing levels of understory...

  6. Louisiana, 2010 forest inventory and analysis factsheet

    Treesearch

    Sonja N. Oswalt; Tony G. Johnson

    2012-01-01

    This science update provides an overview of forest resources in Louisiana based on an inventory conducted by the U.S. Department of Agriculture Forest Service, Forest Inventory and Analysis (FIA) program at the Southern Research Station. This update compares data from the 2005 periodic and 2010 annualized data. The 2010 annualized data consists of 70 percent data...

  7. Biological nitrogen fixation in Louisiana sugarcane

    USDA-ARS?s Scientific Manuscript database

    Nitrogen (N) is a major input for sugarcane with crops in Louisiana receiving between 90 and 180 kg/ha with the cost of N increasing 75% in the last decade. Biological N fixation (BNF) may be a viable alternative to fertilizer N. The process relies on endophytic bacteria (bacteria that live among th...

  8. Spring reflections on Louisiana sugar cane

    USDA-ARS?s Scientific Manuscript database

    The Louisiana sugar industry continues to produce high cane and sugar yields despite a short growing season. Spring fallow land management is essential for the upcoming crop. In the past few years, wide row spacing, billet cane planting, and cover-cropping have received significant attention. The ei...

  9. Early harvest affects ratooning ability in Louisiana

    USDA-ARS?s Scientific Manuscript database

    Similar to sugarcane industries around the world, economies of scale often lead to decreases in total number of manufacturing centers such as sugar mills. One of the consequences of mill closures has been an increase in the duration of the crushing season in Louisiana, which has historically bee...

  10. Jackpot for Insurgent in Louisiana Contest

    ERIC Educational Resources Information Center

    Cavanagh, Sean

    2012-01-01

    Campaigns for state school board are typically quiet affairs, eliciting only modest interest from the public and even less from political donors. But the race last fall for the District 2 seat on Louisiana's board of elementary and secondary education was a remarkable exception. The contest attracted the attention of education activists and…

  11. NASA Images Mississippi River Flooding in Louisiana

    NASA Image and Video Library

    2011-05-19

    NASA Terra spacecraft shows the water flow after the U.S. Army Corps of Engineers opened the Morganza Spillway, a flood control structure along the western bank of the Mississippi River in Louisiana, to ease flooding along levee systems on May 14, 2011.

  12. Forest statistics for Northwest Louisiana Parishes

    Treesearch

    James F. Rosson; Daniel F. Bertelson

    1985-01-01

    These tables were derived from data obtained during a 1984 inventory of 13 parishes comprising the Northwest unit of Louisiana (fig. 1). The data on forest acreage and timber volume were secured by a systematic sampling method involving a forest-nonforest classification on aerial photographs and on-the-ground measurements of trees at sample locations. The sample...

  13. Louisiana Consolidated State Application Accountability Workbook. Amended

    ERIC Educational Resources Information Center

    US Department of Education, 2006

    2006-01-01

    This workbook, submitted by the State of Louisiana to the U.S. Department of Education, is for State Grants under Title IX, Part C, Section 9302 of the Elementary and Secondary Education Act (Public Law 107-110). By January 31, 2003, States must complete and submit to the Department this Consolidated State Application Accountability Workbook. The…

  14. Conservation of Louisiana's coastal wetland forests

    Treesearch

    Jim L. Chambers; Richard F. Keim; William H. Conner; John W. Jr. Day; Stephen P. Faulkner; Emile S. Gardiner; Melinda s. Hughes; Sammy L. King; Kenneth W. McLeod; Craig A. Miller; J. Andrew Nyman; Gary P. Shaffer

    2006-01-01

    Large-scale efforts to protect and restore coastal wetlands and the concurrent renewal of forest harvesting in cypress-tupelo swamps have brought new attention to Louisiana's coastal wetland forests in recent years. Our understanding of these coastal wetland forests has been limited by inadequate data and the lack of a comprehensive review of existing information...

  15. Annotated checklist of Buprestidae (Coleoptera) from Louisiana

    USDA-ARS?s Scientific Manuscript database

    We report 106 species of Buprestidae from the state of Louisiana, 97 species based on 4879 specimens examined and nine from previous literature records. Seven new state records are reported, including the first published record of Agrilus planipennis Fairmaire (emerald ash borer), which is now estab...

  16. Hybrid Computation at Louisiana State University.

    ERIC Educational Resources Information Center

    Corripio, Armando B.

    Hybrid computation facilities have been in operation at Louisiana State University since the spring of 1969. In part, they consist of an Electronics Associates, Inc. (EAI) Model 680 analog computer, an EAI Model 693 interface, and a Xerox Data Systems (XDS) Sigma 5 digital computer. The hybrid laboratory is used in a course on hybrid computation…

  17. Survey of Computer Usage in Louisiana Schools.

    ERIC Educational Resources Information Center

    Kirby, Peggy C.; And Others

    A survey of computer usage in 179 randomly selected public elementary and secondary schools in Louisiana was conducted in the spring of 1988. School principals responded to questions about school size, the socioeconomic status of the student population, the number of teachers certified in computer literacy and computer science, and the number of…

  18. Louisiana Puts God into Biology Lessons.

    ERIC Educational Resources Information Center

    Broad, William J.

    1981-01-01

    Reports on the Balanced Treatment for Creation-Science and Evolution-Science Act requiring that "creation science" and evolution receive "balanced treatment" in classroom lectures, textbooks, library materials used, science and humanities, and other educational materials or programs in Louisiana public schools. (JN)

  19. Electronic Information Services, Louisiana State University Libraries.

    ERIC Educational Resources Information Center

    Bolner, Smittie; And Others

    Reports prepared by the Louisiana State University (LSU) Libraries Task Force on Electronic Services examine the present level of automated services at the LSU libraries and make recommendations for both long- and short-term plans to handle information in electronic format. The reports, each of which is followed by a list of recommendations, focus…

  20. Demographic Trends in Education in Louisiana.

    ERIC Educational Resources Information Center

    Falk, William W.; Comfort, Allen

    Utilizing census data from 1950, 1960, and 1970 and school data from 1950-51, 1960-61, and 1973-74, the historical trends in Louisiana education were analyzed. Units of analysis included: (1) the State; (2) the most urban and most rural parishes (defined as 65% urban or rural at each point in time); and (3) whites and nonwhites within the State…

  1. Remembering the sacrifice: historic Camp Claiborne, Louisiana

    Treesearch

    James P. Barnett; Douglas J. Rhodes; Lisa W. Lewis

    2015-01-01

    In 1940, construction began on numerous military installations in central Louisiana that would train millions of young men and women entering the U.S. Army for service during World War II. Over 500,000 troops trained at Camp Claiborne alone during its 6 years of existence. The area was selected because of availability of Federal land from the Kisatchie National Forest...

  2. Recent Trends in Geography Education in Louisiana

    ERIC Educational Resources Information Center

    Rohli, Robert V.; Binford, Paul E.

    2016-01-01

    Geography at elementary and middle schools in Louisiana, USA., remains a social studies strand along with civics, economics, and history, with no state-required geography course at any level. But because schools may require more geography than the state standard, this research examines the extent to which K-12 students are exposed to geography in…

  3. Jackpot for Insurgent in Louisiana Contest

    ERIC Educational Resources Information Center

    Cavanagh, Sean

    2012-01-01

    Campaigns for state school board are typically quiet affairs, eliciting only modest interest from the public and even less from political donors. But the race last fall for the District 2 seat on Louisiana's board of elementary and secondary education was a remarkable exception. The contest attracted the attention of education activists and…

  4. Forest statistics for Southwest Louisiana parishes

    Treesearch

    James F. Rosson; Daniel F. Bertelson

    1985-01-01

    These tables were derived from data obtained during a 1984 inventory of 11 parishes comprising the Southwest Unit of Louisiana (fig. 1). The data on forest acreage and timber volume were secured by a systematic sampling method involving a forest-nonforest classification on aerial photographs and on-the-ground measurements of trees at sample locations. The sample...

  5. Recent Trends in Geography Education in Louisiana

    ERIC Educational Resources Information Center

    Rohli, Robert V.; Binford, Paul E.

    2016-01-01

    Geography at elementary and middle schools in Louisiana, USA., remains a social studies strand along with civics, economics, and history, with no state-required geography course at any level. But because schools may require more geography than the state standard, this research examines the extent to which K-12 students are exposed to geography in…

  6. Status of Pituophis ruthveni (Louisiana pine snake)

    Treesearch

    D. Craig Rudolph; Shirley J. Burgdorf; Richard R. Schaefer; Richard N. Conner; Ricky W. Maxey

    2006-01-01

    Extensive trapping surveys across the historical range of Pituophis ruthveni (Louisiana Pine Snake) suggest that extant populations are extremely small and limited to remnant patches of suitable habitat in a highly fragmented landscape. Evaluation of habitat at all known historical localities of P. ruthveni documents the widespread...

  7. Canary Islands

    NASA Technical Reports Server (NTRS)

    1992-01-01

    This easterly looking view shows the seven major volcanic islands of the Canary Island chain (28.0N, 16.5W) and offers a unique view of the islands that have become a frequent vacation spot for Europeans. The northwest coastline of Africa, (Morocco and Western Sahara), is visible in the background. Frequently, these islands create an impact on local weather (cloud formations) and ocean currents (island wakes) as seen in this photo.

  8. Environmental monitoring at designed geopressured-geothermal well sites, Louisiana and Texas

    SciTech Connect

    Not Available

    1990-01-01

    This document covers the activities of monitoring environmental aspects at designated geothermal wells in Texas and Louisiana during the second quarter of 1990 by the Louisiana Geological Survey, Louisiana State University under contract with US DOE. 1 fig. (FSD)

  9. Analysis of anesthesia practice and needs in Louisiana.

    PubMed

    de Lanzac, K S; Miller, M K; Eyrich, J E

    2001-07-01

    The Louisiana State University Health Sciences Center Department of Anesthesiology performed an analysis of anesthesia practice and needs within the State of Louisiana. The State of Louisiana currently has approximately 300 practicing anesthesiologists (physicians), 700 certified registered nurse anesthetists (CRNAs), and does not currently utilize anesthesiologist assistants (AAs). Approximately 500,000 anesthesia encounters occur annually in Louisiana. Although there is a recognized critical shortage of anesthesiologists nationally, this document will focus mainly on the issue of mid-level providers of anesthesia services. The overwhelming majority of surgical and obstetric procedures is performed using the anesthesia care team approach both nationally and in the State of Louisiana. Within the anesthesia care team model, the practice of certified registered nurse anesthetists and anesthesiologist assistants are interchangeable, and both would meet the need for mid-level anesthesia providers in the State of Louisiana.

  10. Tropical Storm Isidore and Hurricane Lili: Louisiana barrier shoreline response, preliminary results

    USGS Publications Warehouse

    Sallenger, Asbury; Penland, Shea; Krabill, William

    2003-01-01

    In a cooperative effort between the U.S. Geological Survey, National Aeronautics and Space Administration, University of New Orleans, and Louisiana's Department of Natural Resources, Louisiana's barrier islands were surveyed with airborne topographic lidar and oblique aerialphotography both before and after the impacts of 2002's Tropical Storm Isidore and Hurricane Lili. The surveys were compared to quantify the magnitudes and patterns of erosion and accretion in both natural areas and areas that had been subjected to major restoration. Wave runup exceeded the elevation of the entire Isles Dernieres barrier chain creating overwash deposits that, in places, were driven landward ~ 300 m. This response was not as severe as observed during Hurricane Andrew in 1992 when the Isles Dernieres were completely and continuously inundated and sand bodies were driven landward on the order of 1 km. Based on a comparison of surveys before and after the combined impacts of Lili and Isidore, the largest shoreline change occurred at the east end of East Island and reached ~ 130 m of erosion.

  11. View of Gulf coast area of Louisiana from Skylab space station

    NASA Image and Video Library

    1974-02-01

    SL4-136-3475 (February 1974) --- A vertical view of the Gulf coast area of Louisiana (29.0N, 92.0W) as seen from the Skylab space station in Earth orbit. A Skylab 4 crewman used a hand-held 70mm Hasselblad camera to take this picture. This view extends from White Lake and Pecan Island (bottom border) eastward to the Mississippi River delta (top left). Atchafalaya Bay (red) is in the center. The Bayou Teche area is included in this view. A prominent feature of this photograph is two large white smoke plumes extending from Louisiana south into the Gulf of Mexico. The larger smoke plume originates on the southern shore of Vermillion Bay. The other plume extends from the southern shore of Marsh Island. The prononced narrow width and length of the plumes indicate that a strong offshore wind is present. Approximately 100 miles of the plumes are visible in this photograph; but they probably extend well into the Gulf of Mexico. Photo credit: NASA

  12. Wastewater and Hazardous Waste Survey, England AFB Louisiana.

    DTIC Science & Technology

    1988-01-01

    Background 1 A. Wastewater System 2 B. England AFB Wastewater Discharge Limitations 2 C. Characteristic Hazardous Waste Regulations 3 1II. Procedures 4 A...Conservation and Recovery Act, or the Louisiana State Hazardous Waste Regulations . The wastewater survey was conducted by 1 Lt Robert A. Tetla, 2Lt Charles W...34Hazardous Waste Abatement Plan, England Air Force Base, Louisiana," 1987. 0 12. State of Louisiana Hazardous Waste Regulations 13. RCRA Interim

  13. The ecology of Barataria Basin, Louisiana: An estuarine profile

    SciTech Connect

    Conner, W.H.; Day, J.W. Jr.

    1987-07-01

    The Barataria Basin lies entirely in Louisiana between the natural levees of the active Mississippi River and the abandoned Bayou Lafourche distributary. It is characterized by a network of interconnecting water bodies which allows transport of water, materials, and migrating organisms throughout the basin. Natural and artificial levees and barrier islands are the only high, well-drained ground in the basin, which is otherwise characterized by extensive swamp forests and fresh, brackish, and salt marshes. These wetlands and water bodies are extremely productive biologically and provide valuable nursery habitat for a number of commercial and recreational fish and shellfish, as well as habitat for wintering waterfowl and furbearers. The basin is a dynamic system undergoing constant change because of geologic and human processes. The network of bays, lakes, and bayous has gradually enlarged over time due to natural subsidence and erosion. Superimposed on these natural processes has been the construction of levees for flood control and network of canals constructed for oil and gas exploration and extraction. These human activities have altered natural hydrologic patterns in the basin and may directly or indirectly contribute to wetland losses. Controlling wetland deterioration in the basin is a major management concern.

  14. 78 FR 14806 - Louisiana; Major Disaster and Related Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ..., Concordia, East Carroll, Evangeline, Franklin, Jefferson Davis, Livingston, Madison, St. Landry and Vermilion Parishes. All parishes within the State of Louisiana are eligible to apply for assistance under...

  15. Trinity shoal: a reworked deltaic barrier on Louisiana continental shelf

    SciTech Connect

    Suter, J.R.; Penland, S.; Moslow, T.F.

    1985-02-01

    Abandonment and reworking of deltaic complexes of the Holocene Mississippi River have produced a series of sandy shoals on the muddy Louisiana continental shelf. Trinity shoal, one of these transgressive deposits, is located 30 km offshore of Atchafalaya Bay and the Point Au Fer-March Island shell reefs. Approximately 1000 km of high-resolution uniboom and 3.5 kHz subbottom-profile seismic data, taken in this area in 1983 and 1984, provide the data base for this study. Trinity shoal, associated with the abandoned Maringouin delta complex, is a lunate shore-parallel feature approximately 36 km long and 5-10 km wide. Relief on the shoal ranges from 2 to 3 m, and minimum water depths over the shoal vary from -5 to -2 m. The shoal sand body is from 5 to 7 m thick and is composed largely of parallel to low-angle clinoform reflectors. Several levels of buried fluvial channels, ranging in age from early Wisconsinian to Holocene, are associated with the shoal deposit. The occurrence of channel features within the shoal sand itself suggests the presence of tidal inlets, indicating a possible barrier-island origin for the shoal. The underlying deltaic sediments reach approximately 15 m in thickness and are made up of low-angle clinoform reflectors dipping to the southwest. Distributary, bay-fill, estuarine, and buried oyster-reef deposits can be recognized, making these similar to modern Atchafalaya delta deposits. Continued progradation of the Atchafalaya delta will probably result in burial of the Trinity shoal and Maringouin delta deposits by fine-grained sediments, giving these shoal deposits a high-preservation potential and creating an excellent stratigraphic trap.

  16. Water resources data, Louisiana, water year 2003

    USGS Publications Warehouse

    Baumann, Todd; Goree, B.B.; Lovelace, W.M.; Montgomery, P.A.; Resweber, J.C.; Ross, Garron B.; Sasser, D.C.; Walters, D.J.

    2004-01-01

    Water resources data for the 2003 water year for Louisiana consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. This report contains records for water discharge at 76 gaging stations; stage only for 86 gaging stations and 7 lakes; water quality for 56 surface-water stations (including 44 gaging stations) and 142 wells; and water levels for 313 observation wells. Also included are data for 158 crest-stage and flood-profile partial-record stations. Additional water data were collected at various sites not included in the systematic data-collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating Federal and State agencies in Louisiana.

  17. Water resources data, Louisiana, water year 2004

    USGS Publications Warehouse

    Baumann, Todd; Goree, B.B.; Lovelace, W.M.; Montogmery, P.A.; Resweber, J.C.; Ross, Garron B.; Ward, Aub N.; Walters, David J.

    2005-01-01

    Water resources data for the 2004 water year for Louisiana consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. This report contains records for water discharge at 77 gaging stations; stage only for 86 gaging stations and 7 lakes; water quality for 60 surface-water stations (including 42 gaging stations) and 112 wells; and water levels for 304 observation wells. Also included are data for 158 crest-stage and flood-profile partial-record stations. Additional water data were collected at various sites not included in the systematic data-collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in Louisiana.

  18. Water Resources Data, Louisiana, Water Year 2002

    USGS Publications Warehouse

    Goree, B.B.; Lovelace, W.M.; Montgomery, P.A.; Resweber, J.C.; Labbe, Charles K.; Walters, David J.

    2003-01-01

    Water resources data for the 2002 water year for Louisiana consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. This report contains records for water discharge at 85 gaging stations; stage only for 79 gaging stations and 7 lakes; water quality for 52 surface-water stations (including 40 gaging stations) and 104 wells; and water levels for 300 observation wells. Also included are data for 143 crest-stage and flood-profile partial-record stations. Additional water data were collected at various sites not included in the systematic data-collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in Louisiana.

  19. Louisiana NASA EPSCoR Preparation Grant

    NASA Technical Reports Server (NTRS)

    Wefel, John P.; Savoie, E. Joseph

    2002-01-01

    In August, 1999, the National Aeronautics and Space Administration issued a Cooperative Agreement (CA) to the State of Louisiana, through the Louisiana Board of Regents (BOB), for the performance of scientific research and graduate fellowships under the NASA Experimental Program to Stimulate Competitive Research (EPSCoR) -- Preparation Grant. Originally constructed as a one year program, with an optional one year continuation, this federal-state partnership culminated on 14 August 2002, including a successful continuation proposal and a no cost extension. The total value of the project reached $450K in NASA funding, matched by state funds and institutional contributions. The purpose of the Preparation Grant program was to develop and nurture strong research ties between the state and NASA field centers and Enterprises, in order to prepare for the upcoming full competition for NASA EPSCoR.

  20. Public Water Supply, Red River Parish, Louisiana.

    DTIC Science & Technology

    1981-03-01

    land which will result in the elimination of wildlife habitat. In Section 2, Subsection "Comparative Impacts Among Alternatives", descriptions of...the U.S. Corps of Engineers in the scoping process due to problems relative to the distance involved (approximately 32 miles) and because of physical ...ENVIRONMENT 3.01 GENERAL DESCRIPTION a. Geographic Location (Refer to Plate 11-3). Red River Parish is located in northwest Louisiana. The parish seat

  1. Water resources of Lafourche Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; Lovelace, John K.

    2013-01-01

    This fact sheet presents a brief overview of groundwater and surface-water resources in Lafourche Parish, Louisiana. Information on the availability, past and current use trends, and water quality from groundwater and surface-water sources in the parish is discussed. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  2. Water resources of Jefferson Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; Lovelace, John K.

    2014-01-01

    This fact sheet presents a brief overview of groundwater and surface-water resources in Jefferson Parish, Louisiana. Information on the availability, use, and quality of water from groundwater and surface-water sources in the parish is discussed. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of this information.

  3. Water resources of Cameron Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.

    2014-01-01

    This fact sheet presents a brief overview of groundwater and surface-water resources in Cameron Parish, Louisiana. Information on the availability, use, and quality of water from groundwater and surface-water sources in the parish is discussed. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of this information.

  4. Vegetation Types in Coastal Louisiana in 2007

    USGS Publications Warehouse

    Sasser, Charles E.; Visser, Jenneke M.; Mouton, Edmond; Linscombe, Jeb; Hartley, Steve B.

    2008-01-01

    During the summer and fall of 2007, the U.S. Geological Survey, the Louisiana State University Agricultural Center, and the Louisiana Department of Wildlife and Fisheries Fur and Refuge Division jointly completed an aerial survey to collect data on 2007 vegetation types in coastal Louisiana. The current map presents the data collected in this effort. The 2007 aerial survey was conducted by using techniques developed over the last thirty years while conducting similar vegetation surveys. Transects flown were oriented in a north-south direction and spaced 1.87 mi (3 km) apart and covered coastal marshes from the Texas State line to the Mississippi State line and from the northern extent of fresh marshes to the southern end of saline (saltwater) marshes on the beaches of the Gulf of Mexico or of coastal bays. Navigation along these transects and to each sampling site was accomplished by using Global Positioning System (GPS) technology and geographic information system (GIS) software. As the surveyors reached each sampling station, observed areas of marsh were assigned as fresh, intermediate, brackish, or saline (saltwater) types, and dominant plant species were listed and ranked according to abundance. Delineations of marsh boundaries usually followed natural levees, bayous, or other features that impede or restrict water flow.

  5. Land Area Change in Coastal Louisiana: A Multidecadal Perspective (from 1956 to 2006)

    USGS Publications Warehouse

    Barras, John A.; Bernier, Julie C.; Morton, Robert A.

    2008-01-01

    The U.S. Geological Survey (USGS) analyzed changes in the configuration of land and water in coastal Louisiana by using a sequential series of 14 data sets summarizing land and water areas from 1956 to 2006. The purpose of this study is to provide a spatially and temporally consistent source of quantitative information on land area across coastal Louisiana, broken into three physiographic provinces (the term 'coastal Louisiana' is used to present data on the collective area). The land-water data sets used in this study are interpreted through spatial analysis and by linear regression analysis. The spatial depictions of land area change reveal a complex and interwoven mosaic of loss and gain patterns caused by natural and human-induced processes operating at varied temporal and spatial scales, resulting in fluctuating contributions to coastal loss. The linear regression analysis provides a robust estimate of recent change trends by comparing land area over time for all data sets from 1985 to 2004 and from 1985 to 2006 by physiographic province across coastal Louisiana. The 1956 to 2006 map showing multidecadal changes, along with the linear regressions of land area change presented in this study, provide a comprehensive and concise presentation of historical trends and rates of land area change in coastal Louisiana. Taking a broad historical view provides an in-depth understanding of land area changes over time. For example, one observation provided by our historical review is that the majority of the widespread, nontransitory land gains depicted on the map over the past 50 years, with the exception of the progradation of the Atchafafalaya River and Wax Lake deltas, are primarily related to sediment placement and landward migration of barrier islands. Another point revealed by our historical approach is that recent land losses caused by hurricanes sometimes commingled with or exacerbated older losses formed during the 1956 to 1978 period. Furthermore, our analyses

  6. Sedimentary Phosphorus Dynamics in a Coastal Louisiana Prograding Delta

    NASA Astrophysics Data System (ADS)

    Upreti, K.; Maiti, K.; Rivera-Monroy, V. H.

    2016-02-01

    A number of studies have quantified phosphorus (P) concentration and sediment-water column exchange undergoing changes in redox condition in the Louisiana delta plain. However, there is not information on the potential role of bacteria in P transformations in Louisiana coastal wetlands. The main objective of this work was to evaluate sedimentary P dynamics by identifying dominant forms of P in sediments and determine the magnitude of P mobilization during bacterially mediated redox reactions. Sediment samples were collected from three sites (ridge, interior, and channel) characterized by variation in the vegetation and elevation in the currently prograding Wax Lake Delta. Sediments were incubated with and without the bacterium Shewanella putrefaciencs CN32 (Sp-CN32), which is an iron reducing bacteria that consumes dissolved oxygen and leads to reduction of Fe III to Fe II thereby releasing PO43- bound to Fe III oxide. Our results revealed that P release in sediments spiked with Sp-CN32 was significantly higher in all sediments when compared to sediments in natural condition. P release from sediment spiked with Sp-CN32 significantly increased from 0.064 to 1.460 umoles/g in the sediment sampled at high elevation (ridge) and from 0.079 to 2.407 moles/g in the medium elevation area (interior) of the island. This increase in P release was significantly correlated with an increase in Fe (II) concentrations. The extent of P release was proportionally higher than the Fe (II) measured in all sediments. The P/Fe ratio steadily increased for the first 24 h followed by a rapid decrease. This temporal trend suggests a lag in Fe (III) reduction and an initial bacterial uptake and release of loosely sorbed NaHCO3-P pool when Sp-CN32 respired on O2 as the terminal electron acceptor. This study contributes to our understanding of the release mechanism of P during bacterial mediated redox reaction in wetland soils undergoing pulsing sediment deposition.

  7. When Might Barrier Island Chains 'Collapse'? An Initial Model Investigation

    NASA Astrophysics Data System (ADS)

    Slott, J. M.; Murray, A. B.

    2007-12-01

    There has been recent speculation that, in response to the accelerated sea-level rise and intensified storms expected over the coming century, barrier island chains such as those found on the US Atlantic and Gulf coastlines, could develop large (10-kilometer-scale) gaps in their most narrow stretches, or might disappear completely (Riggs, S. R., 2001). Such a collapse along the North Carolina Outer Banks barrier island chain, for example, would leave the mainland vulnerable to direct hits from Western Atlantic storm systems, and also would dramatically alter the estuarine system it encloses with potentially devastating effects to marine life. Concern for the future of the Outer Banks is also motivated by the decimation of the Chandeleur Islands in 2005 from Hurricane Katrina. We will present a series of initial numerical modeling experiments addressing how barrier island morphodynamics respond to the sudden creation of kilometer-scale gaps. Large-scale barrier island evolution is influenced by sea-level rise and barrier island overwash, alongshore sediment transport, tidal currents, and the availability of mobile sediment. Barrier islands transgress towards the mainland in response to sea-level rise through overwash: ocean-facing shorelines provide sediment that is transported onto the island to maintain its subaerial height and behind the island to maintain its width, while gradients in alongshore sediment transport typically dictate the large-scale shape of a coastline over long time frames (decades to millenia). Tidal currents also tend to scour inlet channels; the relative strength of this effect depends in part upon the width of the inlet channel. Our exploratory model includes both a one-line alongshore transport component and a cross-shore overwash component, as well as representations of underlying geology (weathering rates and material compositions). In our modeling experiments, we test the effects of perforating a 30 km barrier island chain with variable

  8. Resilience and Redirection: Information Literacy in Louisiana Higher Education

    ERIC Educational Resources Information Center

    Hutchings, Jessica; Willey, Malia

    2014-01-01

    This article reports on a 2012 survey conducted by members of the Louisiana Academic Library and Information Network Consortium (LALINC) to determine the status of the curricular integration of information literacy instruction following numerous budget cuts to Louisiana higher education since 2008. The article also discusses the 2012 deletion of…

  9. Mud Bugs: Supply, Demand, and Natural Resources in Louisiana

    ERIC Educational Resources Information Center

    Nagel, Paul

    2010-01-01

    Louisiana's land, coast, and inland waterways are home to many natural resources such as seafood, petroleum, natural gas, and timber--and freshwater crawfish, or "mudbugs" as the locals like to call them. These natural resources are vital to Louisiana's economy. The author describes a unit of study on economics in which a teacher taught…

  10. Production Practices of Commercial Catfish Producers in Northeast Louisiana.

    ERIC Educational Resources Information Center

    Letlow, Richard M.; Verma, Satish

    A study determined the yields obtained and the production practices followed by Louisiana commercial catfish farmers in Catahoula, Concordia, and Franklin Parishes. This information was used by the Louisiana Cooperative Extension Service (LCES) faculty to develop a catfish education program. The study: (1) determined use of selected recommended…

  11. Local School Finances in Louisiana: Disparities, Discrepancies, and Disgrace.

    ERIC Educational Resources Information Center

    Hare, Dwight

    Because Louisiana is facing financial difficulties, the impact of reductions in federal aid since 1980 has been severe. With a state economy dependent on gas, oil, and agriculture, Louisiana suffers when oil prices are low and farming costs are high. Reduced tax income for the state lowers state spending, forcing additional enterprises out of…

  12. Landscape preference assessment of Louisiana river landscapes: a methodological study

    Treesearch

    Michael S. Lee

    1979-01-01

    The study pertains to the development of an assessment system for the analysis of visual preference attributed to Louisiana river landscapes. The assessment system was utilized in the evaluation of 20 Louisiana river scenes. Individuals were tested for their free choice preference for the same scenes. A statistical analysis was conducted to examine the relationship...

  13. Louisiana Education Quality Trust Fund: Annual Report Fiscal Year 2004.

    ERIC Educational Resources Information Center

    Kennedy, John

    2004-01-01

    The Louisiana Education Quality Trust Fund (LEQTF) was established in 1986 by Louisiana voters to improve the quality of education in the state. The LEQTF receives funds through the Federal Outer Continental Shelf Lands Act and deposits them in what is known as the Permanent Fund. From this Permanent Fund, a separate Support Fund (also known as…

  14. Production Practices of Commercial Catfish Producers in Northeast Louisiana.

    ERIC Educational Resources Information Center

    Letlow, Richard M.; Verma, Satish

    A study determined the yields obtained and the production practices followed by Louisiana commercial catfish farmers in Catahoula, Concordia, and Franklin Parishes. This information was used by the Louisiana Cooperative Extension Service (LCES) faculty to develop a catfish education program. The study: (1) determined use of selected recommended…

  15. Resilience and Redirection: Information Literacy in Louisiana Higher Education

    ERIC Educational Resources Information Center

    Hutchings, Jessica; Willey, Malia

    2014-01-01

    This article reports on a 2012 survey conducted by members of the Louisiana Academic Library and Information Network Consortium (LALINC) to determine the status of the curricular integration of information literacy instruction following numerous budget cuts to Louisiana higher education since 2008. The article also discusses the 2012 deletion of…

  16. Kids Count Data Book on Louisiana's Children, 1999.

    ERIC Educational Resources Information Center

    Agenda for Children, New Orleans, LA.

    This Kids Count data book provides statistics on the well-being of children in Louisiana. Data are provided for the state as a whole and for each of Louisiana's 64 parishes. An introduction summarizes findings for 1999, and a final section summarizes trends in the data over the past several years. Indicators used in the report to measure child…

  17. Employment Trends; Eating and Beverage Establishments 1958 to 1968, Louisiana.

    ERIC Educational Resources Information Center

    Louisiana State Dept. of Employment Security, Baton Rouge

    Employment in eating and beverage establishments has grown tremendously in Louisiana. In 1940, United States Census figures showed that 18,400 were employed in the industry, and by 1969, the number had increased to 31,000. The situation in Louisiana may not be typical of other states because of a sharp increase in catering services to offshore oil…

  18. Diet of the Louisiana pine snake (Pituophis ruthveni)

    Treesearch

    D. Craig Rudolph; Christopher A. Melder; Josh Pierce; Richard R. Schaefer; Beau Gregory

    2012-01-01

    The Louisiana Pine Snake (Pituophis ruthveni) is a large-bodied constrictor endemic to western Louisiana and eastern Texas (Sweet and Parker 1991). Surveys suggest that the species has declined in recent decades and is now restricted to isolated habitat patches (Reichling 1995; Rudolph et al. 2006). Pituophis ruthveni is listed as...

  19. Mud Bugs: Supply, Demand, and Natural Resources in Louisiana

    ERIC Educational Resources Information Center

    Nagel, Paul

    2010-01-01

    Louisiana's land, coast, and inland waterways are home to many natural resources such as seafood, petroleum, natural gas, and timber--and freshwater crawfish, or "mudbugs" as the locals like to call them. These natural resources are vital to Louisiana's economy. The author describes a unit of study on economics in which a teacher taught…

  20. "Normal" a Long Way off for Schools in Louisiana

    ERIC Educational Resources Information Center

    Robelen, Erik W.

    2005-01-01

    For now, it appears that both the New Orleans district, Louisiana's largest, and the nearby St. Bernard public schools could be largely out of commission for the whole school year, state Superintendent Cecil J. Picard said. With officials estimating that more than 230,000 public and private school students from Louisiana had been displaced by the…

  1. Evaluation of rapidly produced Louisiana-grown satsuma juice

    USDA-ARS?s Scientific Manuscript database

    As of 2010, the Louisiana Citrus Industry involved about 550 growers who produced roughly 1000 acres of citrus for an estimated gross farm value of almost $7.5 million; consisting predominately of Satsuma oranges, which have adapted well to the southern Louisiana growing conditions. Unfortunately, ...

  2. "Normal" a Long Way off for Schools in Louisiana

    ERIC Educational Resources Information Center

    Robelen, Erik W.

    2005-01-01

    For now, it appears that both the New Orleans district, Louisiana's largest, and the nearby St. Bernard public schools could be largely out of commission for the whole school year, state Superintendent Cecil J. Picard said. With officials estimating that more than 230,000 public and private school students from Louisiana had been displaced by the…

  3. Virus Strains Causing Mosaic in Louisiana and Florida Sugarcane

    USDA-ARS?s Scientific Manuscript database

    Mosaic caused by Sugarcane mosaic virus (SCMV) and Sorghum mosaic virus (SrMV), respectively, affects sugarcane in Louisiana and Florida. Between 2004 and 2007, surveys were conducted in both states to determine which virus and virus strains were causing mosaic of sugarcane. In Louisiana, leaf sam...

  4. Teach Louisiana Consortium: A Fifth Year Program Evaluation

    ERIC Educational Resources Information Center

    Haj-Broussard, Michelle; Stringer, Angelle

    2012-01-01

    This article describes a fifth year program evaluation of a private provider program for teacher certification in Louisiana. The study sought to evaluate the success of the Teach Louisiana Consortium program in terms of teacher placement, teacher retention, administrative satisfaction, teacher attitudes, and teacher pedagogical knowledge. Initial…

  5. Using remote sensing and imagery exploitation to monitor the dynamics of East Timbalier Island, LA: 2000-2010

    USGS Publications Warehouse

    Thomas, James P.; Fisher, Gary B.; Chandler, Lisbeth A.; Angeli, Kim M.; Wheeler, Douglas J.; Glover, Robert P.; Schenck-Gardner, Elizabeth J.; Wiles, Steve E.; Lindley, Carolyn F.; Peccini, Michael B.

    2011-01-01

    In 1999, the National Oceanic and Atmospheric Administration-National Marine Fisheries Service and the State of Louisiana jointly undertook the restoration of East Timbalier, a barrier island along a sediment-starved portion of the Gulf of Mexico coast of Louisiana. High-resolution overhead imagery was used to monitor the course of this restoration effort. This article describes the changes in area and movement of East Timbalier Island and compares these changes with the previous measurements. Between 2000 and 2010, East Timbalier Island lost 52–66% of its area and moved northwards 12–105 m/year. The area of East Timbalier Island is less today than at any time since 1887. Understanding of the physical processes in nature that control the size, shape and movement of the island, as well as the human impacts that have hastened its degradation, is critical for accomplishing any future restoration.

  6. Aleutian Islands

    NASA Image and Video Library

    2017-09-27

    Remote, rugged and extraordinarily beautiful, Alaska’s Aleutian Islands are best known for wildlife reserves, military bases, fishing, furs and fog. The sprawling volcanic archipelago was brought into the spotlight by the Russian-supported expedition of Alexey Chirikov and Vitus Bering in 1741, and soon became controlled by the Russian-American Fur Company. In 1867 the United States purchased Alaska, including the Aleutian Islands, from Russia. By 1900 the port in Unalaska was well established as a shipping port for Alaska gold. The archipelago sweeps about 1,200 miles (1,800 km) from the tip of the Alaskan Peninsula to Attu, the most westward island. Four major island groups hold 14 large islands, about 55 smaller islands, and a large number of islets, adding up to roughly 150 islands/islets in total. This chain separates the Bering Sea (north) from the Pacific Ocean (south) and the islands are connected by the Marine Highway Ferry – at least as far as Unalaska. For the most remote islands, such as birding paradise of Attu, the western-most Aleutian Island, travel becomes trickier and relies primarily on custom charter. The Moderate Resolution Imaging Spectroradiometer (MODIS) flew over the region and captured this spectacular true-color image of the eastern Aleutian Islands on May 15, 2014. In this image, the Alaskan Peninsula protrudes from the mainland and sweeps to the southwest. The first set of islands are called the Fox Island group. Unalaska Island is part of this group and can be identified, with some imagination, as an island formed in the shape of a flying cherub, with two arms (peninsulas) outstretched towards the northeast, seemingly reaching for the round “balls” of Akutan and Akun Islands. The smallest islands in the west of the image belong to the group known as the Islands of Four Mountains. The Aleutians continue far to the west of this image. Fog surrounds the Aleutians, stretching from just off the southwestern Alaska mainland to the

  7. Forecasting change in Louisiana physician age cohorts: 1994-2020.

    PubMed

    Sessions, Blane A; Hilton, Charles W; Chauvin, Sheila W; Yang, Tong

    2006-01-01

    A shortage of physicians is predicted in the near future, as there is a mismatch between the supply and demand for physicians. Our objective was to examine what effect an aging Louisiana physician population might have on these forecasts using data from the American Medical Association and population projections from the Louisiana Population Data Center. Our results propose a considerable rise in the number of Louisiana physicians who are older, with growth in younger physicians being continually flat. We forecast 44.2 percent of Louisiana physicians will be over 55 years of age in the year 2020. Acknowledging many limitations of a study such as this, we believe an aging physician population might lead to an overall decrease in the effective physician supply of Louisiana in the future.

  8. Winter movements of Louisiana pine snakes (Pituophis ruthveni) in Texas and Louisiana

    Treesearch

    Josh B. Pierce; D. Craig Rudolph; Shirley J. Burgdorf; Richard R. Schaefer; Richard N. Conner; John G. Himes; C. Mike Duran; Laurence M. Hardy; Robert R. Fleet

    2014-01-01

    Despite concerns that the Louisiana Pine Snake (Pituophis ruthveni) has been extirpated from large portions of its historic range, only a limited number of studies on their movement patterns have been published. Winter movement patterns are of particular interest since it has been hypothesized that impacts of management practices would be reduced during the winter....

  9. The Economic Impact of the Louisiana State University System on the Louisiana State Economy. AIR Forum 1980 Paper.

    ERIC Educational Resources Information Center

    Engler, Sheldon D.; And Others

    An econometric model was developed for use in measuring the impact of the Louisiana State University (LSU) upon the Louisiana economy. Emphasis is placed on measuring the effects of enrollment changes, salary and wage expenditures, and campus construction activity. The results show that, overall, each dollar spent by the LSU System creates another…

  10. Galapagos Islands

    NASA Technical Reports Server (NTRS)

    2002-01-01

    This true-color image of the Galapagos Islands was acquired on March 12, 2002, by the Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard NASA's Terra satellite. The Galapagos Islands, which are part of Ecuador, sit in the Pacific Ocean about 1000 km (620 miles) west of South America. As the three craters on the largest island (Isabela Island) suggest, the archipelago was created by volcanic eruptions, which took place millions of years ago. Unlike most remote islands in the Pacific, the Galapagos have gone relatively untouched by humans over the past few millennia. As a result, many unique species have continued to thrive on the islands. Over 95 percent of the islands' reptile species and nearly three quarters of its land bird species cannot be found anywhere else in the world. Two of the more well known are the Galapagos giant tortoise and marine iguanas. The unhindered evolutionary development of the islands' species inspired Charles Darwin to begin The Origin of Species eight years after his visit there. To preserve the unique wildlife on the islands, the Ecuadorian government made the entire archipelago a national park in 1959. Each year roughly 60,000 tourists visit these islands to experience what Darwin did over a century and a half ago. Image courtesy Jacques Descloitres, MODIS Land Rapid Response Team at NASA GSFC

  11. Galapagos Islands

    NASA Technical Reports Server (NTRS)

    2002-01-01

    This true-color image of the Galapagos Islands was acquired on March 12, 2002, by the Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard NASA's Terra satellite. The Galapagos Islands, which are part of Ecuador, sit in the Pacific Ocean about 1000 km (620 miles) west of South America. As the three craters on the largest island (Isabela Island) suggest, the archipelago was created by volcanic eruptions, which took place millions of years ago. Unlike most remote islands in the Pacific, the Galapagos have gone relatively untouched by humans over the past few millennia. As a result, many unique species have continued to thrive on the islands. Over 95 percent of the islands' reptile species and nearly three quarters of its land bird species cannot be found anywhere else in the world. Two of the more well known are the Galapagos giant tortoise and marine iguanas. The unhindered evolutionary development of the islands' species inspired Charles Darwin to begin The Origin of Species eight years after his visit there. To preserve the unique wildlife on the islands, the Ecuadorian government made the entire archipelago a national park in 1959. Each year roughly 60,000 tourists visit these islands to experience what Darwin did over a century and a half ago. Image courtesy Jacques Descloitres, MODIS Land Rapid Response Team at NASA GSFC

  12. Utility geothermal plans, Texas and Louisiana

    NASA Astrophysics Data System (ADS)

    Ridgway, J. R., Jr.

    1982-12-01

    The best opportunity for geothermal energy recovery seems to be the geopressured aquifer system which extends under the Louisiana and Texas Gulf Coast. To learn more of these formations and their contents which have been responsible for most of the blowouts in petroleum wells while drilling to 12,000 feet and greater depths, design wells are used. Design wells are wells which are designed and drilled specifically for the purpose of testing the geopressured aquifers. The status of four design wells, are reported.

  13. Water resources of Sabine Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; White, Vincent E.; Lovelace, John K.

    2014-01-01

    Information concerning the availability, use, and quality of water in Sabine Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s (USGS) National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  14. Water resources of Livingston Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2016-07-27

    Information concerning the availability, use, and quality of water in Livingston Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  15. Water resources of St. Helena Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2016-07-27

    Information concerning the availability, use, and quality of water in St. Helena Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  16. Water resources of East Feliciana Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2017-01-12

    Information concerning the availability, use, and quality of water in East Feliciana Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information is presented on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  17. Water resources of Tangipahoa Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2016-07-25

    Information concerning the availability, use, and quality of water in Tangipahoa Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  18. High Energy Physics Research at Louisiana Tech

    SciTech Connect

    Sawyer, Lee; Greenwood, Zeno; Wobisch, Marcus

    2013-06-28

    The goal of this project was to create, maintain, and strengthen a world-class, nationally and internationally recognized experimental high energy physics group at Louisiana Tech University, focusing on research at the energy frontier of collider-based particle physics, first on the DØ experiment and then with the ATLAS experiment, and providing leadership within the US high energy physics community in the areas of jet physics, top quark and charged Higgs decays involving tau leptons, as well as developing leadership in high performance computing.

  19. Water resources of West Feliciana Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; Lovelace, John K.; Tomaszewski, Dan J.; Griffith, Jason M.

    2014-01-01

    Information concerning the availability, use, and quality of water in West Feliciana Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is discussed. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  20. Geothermal patterns of Louisiana salt domes

    SciTech Connect

    Kumar, M.B. )

    1989-09-01

    Seven salt domes of Louisiana, in the shallow to intermediate depth ranges, were selected for the investigation of geothermal patterns associated with them. Equilibrium geotemperatures were determined from the bottom hole temperatures of wells drilled in the salt dome areas. Isothermal contour mapping was attempted for various depth levels, namely, 8,000, 9,000, 10,000, 12,000, and 14,000 ft. Limited availability of data permitted construction of isothermal contour maps on some of the depth horizons for each of the domes.

  1. Minerals yearbook, 1992: Louisiana. Annual report

    SciTech Connect

    White, D.H.; Marsalis, W.E.

    1994-03-01

    Louisiana's nonfuel mineral production in 1992 totaled $309.3 million. This was a $42.5 million decline in value from that reported by the mineral industry in 1991. Although there was an increase in the value of gemstones, lime, and industrial sand and gravel, it failed to offset a decline in the demand and sales of gypsum, construction sand and gravel, salt, crushed stone, and sulfur. The values of these five mineral commodities fell $53.9 million between 1991 and 1992. The State ranked 32d nationally in mineral value and accounted for 35% of the Nation's salt tonnage and 42% of the Frasch sulfur production.

  2. Water resources of La Salle Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2015-01-01

    Information concerning the availability, use, and quality of water in La Salle Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  3. Water resources of St. James Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2015-01-01

    Information concerning the availability, use, and quality of water in St. James Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  4. Water resources of St. Charles Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2015-01-01

    Information concerning the availability, use, and quality of water in St. Charles Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  5. Water resources of Vermilion Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; White, Vincent E.

    2014-01-01

    Information concerning the availability, use, and quality of water in Vermilion Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  6. Water resources of Terrebonne Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; Lovelace, John K.; White, Vincent E.

    2014-01-01

    Information concerning the availability, use, and quality of water in Terrebonne Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends,and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System http://waterdata.usgs.gov/nwis are the primary sources of the information presented here.

  7. Water resources of St. Mary Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; White, Vincent E.; Lovelace, John K.

    2014-01-01

    Information concerning the availability, use, and quality of water in St. Mary Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for management of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  8. Water resources of Acadia Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Larry B.; White, Vincent E.

    2014-01-01

    Information concerning the availability, use, and quality of water in Acadia Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  9. Water resources of De Soto Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; White, Vincent E.

    2014-01-01

    Information concerning the availability, use, and quality of water in De Soto Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata. usgs.gov/nwis) are the primary sources of the information presented here.

  10. Water resources of Caldwell Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; White, Vincent E.

    2014-01-01

    Information concerning the availability, use, and quality of water in Caldwell Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  11. Water resources of Orleans Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; White, Vincent E.; Lovelace, John K.

    2014-01-01

    Information concerning the availability, use, and quality of water in Orleans Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  12. Water resources of Jefferson Davis Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2014-01-01

    Information concerning the availability, use, and quality of water in Jefferson Davis Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here.

  13. Akpatok Island

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Akpatok Island lies in Ungava Bay in northern Quebec, Canada. Accessible only by air, Akpatok Island rises out of the water as sheer cliffs that soar 500 to 800 feet (150 to 243 m) above the sea surface. The island is an important sanctuary for cliff-nesting seabirds. Numerous ice floes around the island attract walrus and whales, making Akpatok a traditional hunting ground for native Inuit people. This image was acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on January 22, 2001. Image provided by the USGS EROS Data Center Satellite Systems Branch

  14. Distribution and textural character of surficial sediments, Isles Dernieres to Ship Shoal region, Louisiana

    SciTech Connect

    Williams, S.J.; Circe, R. ); Penland, S. )

    1989-09-01

    Since 1986, the US Geological Survey and the Louisiana Geological Survey have undertaken field studies of the physical processes responsible for the widespread and extremely rapid coastal erosion of Louisiana's barriers along the Mississippi River delta plain coast. The study area encompasses the coastal and inner shelf region from Raccoon Point to Sandy Point and includes a database of 12-m long vibracores, surface grab samples, sidescan sonar, high resolution seismic reflection profiles, and precision hydrographic profiles. This paper presents results in the coastal-shelf sector that includes the Isles Dernieres barrier island chain seaward almost 30 km to Ship Shoal. The surface and near-surface sediments of the region reflect fluvial and nearshore marine origin with pervasive evidence of winnowing and reworking by marine processes associated with frequent tropical storms and the passage of winter cold fronts. Beach sediments are remarkably uniform in grain size (fine quartz sand), except for the often abundant presence of carbonate shell debris, and are generally well to very well sorted. The shoreface and inner shelf are mantled with muddy sands and sandy muds, whereas, Ship Shoal is almost wholly fine quartz sand, similar in many sedimentologic respects to the Isles Dernieres. The results are consistent with the model of coastal evolution, presented in 1988, in which Ship Shoal is the prototypical example of a drowned coastal barrier undergoing submarine reworking and landward migration in pace with the rapid rates of sea level rise and subsidence.

  15. Calculating resource restoration for an oil discharge in Lake Barre, Louisiana, USA.

    PubMed

    Penn, Tony; Tomasi, Theodore

    2002-05-01

    Under the United States Oil Pollution Act of 1990, natural resource trustees are charged with assessing natural resource impacts due to an oil spill and determining the type and amount of natural resource restoration that will compensate the public for the impacts. Habitat equivalency analysis is a technique through which the impacts due to the spill and the benefits of restoration are quantified; both are quantified as habitat resources and associated ecological services. The goal of the analysis is to determine the amount of restoration such that the services lost are offset by services provided by restoration. In this paper, we first describe the habitat equivalency analysis framework. We then present an oil spill case from coastal Louisiana, USA, where the framework was applied to quantify resource impacts and determine the scale of restoration. In the Louisiana case, the trustees assessed impacts for oiled salt marsh and direct mortality to finfish, shellfish, and birds. The restoration project required planting salt-marsh vegetation in dredge material that was deposited on a barrier island. Using the habitat equivalency analysis framework, it was determined that 7.5 ha of the dredge platform should be planted as salt marsh. The planted hectares will benefit another 15.9 ha through vegetative spreading resulting in a total of 23.4 ha that will be enhanced or restored as compensation for the natural resource impacts.

  16. Water resources of Catahoula Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.

    2017-02-24

    IntroductionInformation concerning the availability, use, and quality of water in Catahoula Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System are the primary sources of the information presented here.In 2010, 30.01 million gallons per day (Mgal/d) of water were withdrawn in Catahoula Parish, Louisiana, including about 22.63 Mgal/d from groundwater sources and 7.38 Mgal/d from surface-water sources. Withdrawals for agricultural use, composed of aquaculture, general irrigation, livestock, and rice irrigation, accounted for about 93 percent (28.05 Mgal/d) of the total water withdrawn. Other categories of use included public supply and rural domestic. Water-use data collected at 5-year intervals from 1960 to 2010 indicated that water withdrawals peaked in 2000 at 30.99 Mgal/d.

  17. Water resources of Iberia Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2017-02-24

    IntroductionInformation concerning the availability, use, and quality of water in Iberia Parish, Louisiana, is critical for proper water-resource management. This fact sheet summarizes the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish for water managers, parish residents, and others to assist in stewardship of this vital resource. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System are the primary sources of the information presented here.In 2010, about 31.24 million gallons per day (Mgal/d) of water were withdrawn in Iberia Parish, Louisiana, including about 23.13 Mgal/d from groundwater sources and 8.11 Mgal/d from surface-water sources. Withdrawals for public supply and industrial use each accounted for about 32 percent of the total water withdrawn. Other water-use categories included rural domestic, livestock, rice irrigation, general irrigation, and aquaculture. Water-use data collected at 5-year intervals from 1960 to 2010 indicated that water withdrawals in Iberia Parish peaked at about 58.57 Mgal/d in 1975.

  18. Louisiana gas play still a hit

    SciTech Connect

    Brown, D.

    1991-12-01

    Despite the mature look of the oil and gas development in south Louisiana, many deeper oil and gas prospects are still untouched. Most wells in this area are relatively shallow and were stopped before they were actually reached pressured reservoirs. This paper discusses the success of the Miami Fee natural gas field which was drilled based on the reinterpretation of existing seismic data. Plains Resources Inc. of Houston recently completed its Miami Fee No. 1 well in Cameron Parish, Louisiana, about 25 miles southwest of the West Chalkley gas field discovery. Plains' new well produced from lower Oligocene sands between 15,300 and 15,632 feet, flowing 23.3 million cubic feet of gas and 1,353 barrels of condensate per day on a 3/8-inch choke in a four-point test. To help locate this field the company used an inversion technique to formulate crude sonic logs in areas between reflected boundaries, reprocessing some six-fold seismic data from as far back as 1968.

  19. Predictions of barrier island berm evolution in a time-varying storm climatology

    USGS Publications Warehouse

    Plant, Nathaniel G.; Flocks, James; Stockdon, Hilary F.; Long, Joseph W.; Guy, Kristy K.; Thompson, David M.; Cormier, Jamie M.; Smith, Christopher G.; Miselis, Jennifer L.; Dalyander, P. Soupy

    2014-01-01

    Low-lying barrier islands are ubiquitous features of the world's coastlines, and the processes responsible for their formation, maintenance, and destruction are related to the evolution of smaller, superimposed features including sand dunes, beach berms, and sandbars. The barrier island and its superimposed features interact with oceanographic forces (e.g., overwash) and exchange sediment with each other and other parts of the barrier island system. These interactions are modulated by changes in storminess. An opportunity to study these interactions resulted from the placement and subsequent evolution of a 2 m high sand berm constructed along the northern Chandeleur Islands, LA. We show that observed berm length evolution is well predicted by a model that was fit to the observations by estimating two parameters describing the rate of berm length change. The model evaluates the probability and duration of berm overwash to predict episodic berm erosion. A constant berm length change rate is also predicted that persists even when there is no overwash. The analysis is extended to a 16 year time series that includes both intraannual and interannual variability of overwash events. This analysis predicts that as many as 10 or as few as 1 day of overwash conditions would be expected each year. And an increase in berm elevation from 2 m to 3.5 m above mean sea level would reduce the expected frequency of overwash events from 4 to just 0.5 event-days per year. This approach can be applied to understanding barrier island and berm evolution at other locations using past and future storm climatologies.

  20. Island Hopping

    ERIC Educational Resources Information Center

    Bennett, Gayle

    2009-01-01

    At some institutions, it may feel as though faculty live on one island and advancement staff on another. The islands form part of an archipelago, and they exchange ambassadors and send emissaries occasionally, but interactions are limited. It may even seem as though the two groups speak different languages, deal in different currencies, and abide…

  1. Electromagnetic Pulse (EMP) survey of the Louisiana State Emergency Operating Center, Baton Rouge, Louisiana

    SciTech Connect

    Crutcher, R.I.; Buchanan, M.E.; Jones, R.W.

    1989-08-01

    The purpose of this report is to develop an engineering design package to protect the federal Emergency Management Agency (FEMA) National Radio System (FNARS) facilities from the effects of high-altitude electromagnetic pulses (HEMP). This report refers to the Louisiana State Emergency Operating Center (EOC) in Baton Rouge, Louisiana. This report addresses electromagnetic pulse (EMP) effects only, and disregards any condition in which radiation effects may be a factor. It has been established that, except for the source region of a surface burst, EMP effects of high-altitude bursts are more severe than comparable detonations in either air or surface regions. Any system hardened to withstand the more extreme EMP environment will survive the less severe conditions. The threatening environment will therefore be limited to HEMP situations. 76 figs., 2 tabs.

  2. Belcher Islands

    NASA Image and Video Library

    2017-09-27

    Belcher Islands - September 21st, 2001 Description: Like sweeping brushstrokes of pink and green, the Belcher Islands meander across the deep blue of Canada's Hudson Bay. The islands' only inhabitants live in the small town of Sanikiluaq, near the upper end of the middle island. Despite the green hues in this image, these rocky islands are too cold to sustain more than a smattering of low-growing vegetation. Credit: USGS/NASA/Landsat 5 To learn more about the Landsat satellite go to: landsat.gsfc.nasa.gov/ 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 Join us on Facebook

  3. Social Reproduction and the Student Decision to Follow the Louisiana Career/Basic Core Diploma Path at a Large, Affluent High School in Northeastern Louisiana

    ERIC Educational Resources Information Center

    Whittock, Tammy

    2013-01-01

    Through this mixed-method study, the researcher investigated social reproduction in a student's decision to follow the Louisiana Career/Basic Core Diploma Path. In 2008-2009, Louisiana's cohort graduation rate was 67.3%, which was well below the national average of 75.5%, ranking Louisiana forty-sixth in the country. This rate led to the…

  4. Tidal inlet processes and deposits along a low energy coastline: easter Barataria Bight, Louisiana

    SciTech Connect

    Moslow, T.F.; Levin, D.R.

    1985-01-01

    Historical, seismic and vibracore data were used to determine the geologic framework of sand deposits along the predominantly muddy coastline of eastern Barataria Bight, Louisiana. Three inlet types with distinct sand body geometries and morphologies were identified and are found 1) at flanking barrier island systems spread laterally across the front of interdistributary bays; 2) in old distributary channels; 3) at overwash breaches; or 4) combination of these. Barataria Bight, a sheltered barrier island shoreline embayment with limited sand supply, minimal tidal range (36 cm) and low wave energies (30 cm) can be used to show examples of each inlet type. Barataria Pass and Quatre Bayou Pass are inlets located in old distributary channels. However, Barataria Pass has also been affected by construction between barrier islands. Pass Ronquille is located where the coastline has transgressed a low area in the delta plain. This breach is situated in a hydraulically efficient avenue between the Gulf and Bay Long behind it. Pass Abel is a combination of a low-profile barrier breach and the reoccupation of an old distributary channel. Shelf and shoreline sands are reworked from abandoned deltaic distributaries and headlands. Inner shelf sands are concentrated in thick (10 m) shore-normal relict distributary channels with fine grained cross-bedded and ripple laminated sand overlain by burrowed shelf muds. Shoreface sand deposits occur as 2-3 m thick, fine-grained, coarsening upward and burrowed ebb-tidal delta sequences and shore-parallel relict tidal inlet channels filled through lateral accretion.

  5. Impact of 1985 hurricanes on Isles Dernieres, Louisiana: Temporal and spatial analysis of coastal geomorphic changes

    SciTech Connect

    Debusshere, K.; Westphal, K.; Penland, S.; McBride, R. )

    1989-09-01

    Catastrophic geomorphic changes occurred in the Isles Dernieres barrier island arc as a result of the direct impact of three hurricanes in 1985. The severity of the impact of hurricanes Danny, Elena, and Juan had not been equaled since the landfall of hurricanes Betsy and Camille in the late 1960s. The Isles Dernieres had not been subjected to a direct hurricane landfall since hurricane Bob in 1979. The recent hurricane impacts provided the USGS/LGS Louisiana Cooperative Barrier Island and Land Loss Study the opportunity to examine the process-response characteristics of this low-profile transgressive barrier island arc to multiple hurricane impacts in a single hurricane season. The geomorphic changes along the Isles Dernieres were determined using four sequential airborne videotape surveys acquired in July 1984, July 1985 (pre-storm), August 1985 (post-Danny) and November 1985 (post-Juan) and mapped on 1:24,000 base maps produced from concurrent vertical aerial photography. A coastal geomorphic classification was developed to describe, quantify, and map the alongshore geomorphic, sedimentologic , and vegetative character of this barrier shoreline. The classification consists of three levels of descriptors: (1) primary morphology to define the predominant longshore morphology, (2) modifiers to depict the small-scale longshore features, and (3) variants to locate and quantify important coastal features, not mappable at the scale used.

  6. KENNEDY SPACE CENTER, FLA. -- A lone white ibis shares its watery hunting ground with a group of roseate spoonbills near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the Merritt Island National Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

    NASA Image and Video Library

    2004-01-08

    KENNEDY SPACE CENTER, FLA. -- A lone white ibis shares its watery hunting ground with a group of roseate spoonbills near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the Merritt Island National Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

  7. KENNEDY SPACE CENTER, FLA. -- A roseate spoonbill contemplates its reflection in the water near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the Merritt Island National Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

    NASA Image and Video Library

    2004-01-08

    KENNEDY SPACE CENTER, FLA. -- A roseate spoonbill contemplates its reflection in the water near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the Merritt Island National Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

  8. KENNEDY SPACE CENTER, FLA. -- A group of roseate spoonbills share their watery hunting ground with a lone white ibis near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the Merritt Island National Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

    NASA Image and Video Library

    2004-01-08

    KENNEDY SPACE CENTER, FLA. -- A group of roseate spoonbills share their watery hunting ground with a lone white ibis near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the Merritt Island National Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

  9. KENNEDY SPACE CENTER, FLA. -- Two roseate spoonbills hunt for their supper in the water near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the National Merritt Island Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

    NASA Image and Video Library

    2004-01-08

    KENNEDY SPACE CENTER, FLA. -- Two roseate spoonbills hunt for their supper in the water near KSC. Spoonbills prefer to inhabit mangroves, ranging from the coasts of southern Florida, Louisiana and Texas, to the West Indies, Mexico, Central and South America. They feed on shrimps and fish in shallow waters. Spoonbills are one of 310 species of birds that inhabit the National Merritt Island Wildlife Refuge, which shares a boundary with KSC. The marshes and open water of the refuge also provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds.

  10. Developmental Toxicity of Louisiana Crude Oiled Sediment to Zebrafish

    EPA Science Inventory

    Embryonic exposures to polycyclic aromatic hydrocarbons (PAHs) and petroleum products cause a characteristic suite of developmental defects in a variety of fish species. We exposed zebrafish embryos to sediment mixed with laboratory weathered South Louisiana crude oil. Oiled sedi...

  11. Manganese, Iron, and sulfur cycling in Louisiana continental shelf sediments

    EPA Science Inventory

    Sulfate reduction is considered the primary pathway for organic carbon remineralization on the northern Gulf of Mexico Louisiana continental shelf (LCS) where bottom waters are seasonally hypoxic, yet limited information is available on the importance of iron and manganese cyclin...

  12. Developmental Toxicity of Louisiana Crude Oiled Sediment to Zebrafish

    EPA Science Inventory

    Embryonic exposures to polycyclic aromatic hydrocarbons (PAHs) and petroleum products cause a characteristic suite of developmental defects in a variety of fish species. We exposed zebrafish embryos to sediment mixed with laboratory weathered South Louisiana crude oil. Oiled sedi...

  13. Program Contacts for Lake Pontchartrain Area/New Orleans (Louisiana)

    EPA Pesticide Factsheets

    Lake Pontchartrain Area/New Orleans (Louisiana) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts

  14. Phytoplankton Communities in Louisiana coastal waters and the continental shelf

    EPA Science Inventory

    Louisiana coastal waters and the adjacent continental shelf receive large freshwater and nutrient inputs from the Mississippi and Atchafalaya Rivers, creating favorable conditions for increased phytoplankton productivity. To examine inshore-offshore patterns in phytoplankton comm...

  15. Phytoplankton Communities in Louisiana coastal waters and the continental shelf

    EPA Science Inventory

    Louisiana coastal waters and the adjacent continental shelf receive large freshwater and nutrient inputs from the Mississippi and Atchafalaya Rivers, creating favorable conditions for increased phytoplankton productivity. To examine inshore-offshore patterns in phytoplankton comm...

  16. Photo Gallery for Lake Pontchartrain Area/New Orleans (Louisiana)

    EPA Pesticide Factsheets

    Lake Pontchartrain Area/New Orleans (Louisiana) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts.

  17. GPM Provides a Closer Look at the Louisiana Floods

    NASA Image and Video Library

    Twice on Aug. 12, 2016, GPM flew over a massive rainstorm that flooded large portions of Louisiana. The flooding was some of the worst ever in the state, resulting in a state of emergency. Tens of ...

  18. EAARL coastal topography--North Shore, Lake Pontchartrain, Louisiana, 2010

    USGS Publications Warehouse

    Bonisteel-Cormier, J.M.; Nayegandhi, Amar; Fredericks, Xan; Wright, C.W.; Brock, J.C.; Nagle, D.B.; Vivekanandan, Saisudha; Barras, J.A.

    2012-01-01

    This DVD contains lidar-derived coastal topography GIS datasets of a portion of the north shore of Lake Pontchartrain, Louisiana. These datasets were acquired on February 28, March 1, and March 5, 2010.

  19. Links Related to Lake Pontchartrain Area/New Orleans (Louisiana)

    EPA Pesticide Factsheets

    Lake Pontchartrain Area/New Orleans (Louisiana) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts

  20. Significant gas field fans out in S. Louisiana

    SciTech Connect

    Not Available

    1991-02-18

    This paper reports on the completion of producing wells in Chalkley Oligocene Miogypsinoides gas/condensate field of Cameron Parish, La. The field appears to be one of the largest gas discoveries in South Louisiana in several years.

  1. The Louisiana State University Law Center's Bijural Program.

    ERIC Educational Resources Information Center

    Costonis, John J.

    2002-01-01

    Describes the bijural program of Louisiana State University Law Center. The program educates all first-degree law students in both the common law and civil law traditions, preparing them for the increasing globalization of legal practice. (EV)

  2. Manganese, Iron, and sulfur cycling in Louisiana continental shelf sediments

    EPA Science Inventory

    Sulfate reduction is considered the primary pathway for organic carbon remineralization on the northern Gulf of Mexico Louisiana continental shelf (LCS) where bottom waters are seasonally hypoxic, yet limited information is available on the importance of iron and manganese cyclin...

  3. Satellite Sees Tropical Storm Isaac Move Slowly Over Louisiana

    NASA Image and Video Library

    An animation of NOAA's GOES-13 satellite observations from August 28-30, 2012, shows Hurricane Isaac make two landfalls in southeastern Louisiana on Aug. 28 at 7:45 p.m. EDT (1145 UTC) and Aug. 29 ...

  4. Lake Pontchartrain Area/New Orleans (Louisiana) Meetings & Events

    EPA Pesticide Factsheets

    Lake Pontchartrain Area/New Orleans (Louisiana) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts

  5. Parastrongylus (=Angiostrongylus) cantonensis now endemic in Louisiana wildlife.

    PubMed

    Kim, D Y; Stewart, T B; Bauer, R W; Mitchell, M

    2002-10-01

    Parastrongylus (=Angiostrongylus) cantonensis, a lung worm of rats, was first reported in the United States in 1987, with a probable introduction by infected rats from ships docking in New Orleans, Louisiana, during the mid-1980s. Since then, it has been reported in nonhuman primates and a boy from New Orleans, and in a horse from Picayune, Mississippi, a distance of 87 km from New Orleans. Parastrongylus cantonensis infection is herein reported in a lemur (Varencia variegata rubra) from New Iberia, Louisiana, a distance of 222 km from New Orleans, and in a wood rat (Neotomafloridanus) and in 4 opossums (Didelphis virginiana) from Baton Rouge, Louisiana, a distance of 124 km from New Orleans. The potential of a great variety of gastropods serving as intermediate hosts in Louisiana may pose a threat to wildlife as well as to domesticated animals in the areas where infected Norway rats (Rattus norvegicus) are present.

  6. EPA Grant Helps Protect and Restore Louisiana Coast

    EPA Pesticide Factsheets

    DALLAS - (Aug. 6, 2015) The U.S. Environmental Protection Agency recently awarded $362,213 to the Coastal Protection and Restoration Authority of Louisiana to help design a project implemented under the Coastal Wetlands Planning, Protection and Rest

  7. Injuries and illnesses related to Hurricane Andrew--Louisiana, 1992.

    PubMed

    1993-04-09

    On August 26, 1992, Hurricane Andrew struck Louisiana. On August 24, in anticipation of hurricane-related injuries and illnesses, the Office of Public Health (OPH), Louisiana Department of Health and Hospitals, in cooperation with hospital emergency room (ER) and public utility personnel and coroners, established an active emergency surveillance system in 19 parishes to monitor these events. This report summarizes the findings from this emergency surveillance system.

  8. Assessment of Mud-Capped Dredge Pit Evolution Offshore Louisiana: Implications to Sand Excavation and Coastal Restoration

    NASA Astrophysics Data System (ADS)

    Xu, K.; Miner, M. D.; Bentley, S. J.; Li, C.; Obelcz, J.; O'Connor, M. C.

    2016-02-01

    The shelf offshore Louisiana is characterized by a dominantly muddy seafloor with a paucity of restoration-quality sand proximal to shore. Discrete sand deposits associated with ancient rivers that incised the shelf during lower sea-level positions occur close to shore. These shelf channel sands have been targeted for coastal restoration projects resulting in significant cost savings over more distal deposits. Several recent projects targeted shelf paleo-fluvial deposits comprising relatively deep (10 m) channel sands underlying a muddy overburden. Because of contrasting characteristics of cohesive mud vs. non-cohesive sand and potential modern fluvial mud supply from the Mississippi and Atchafalaya Rivers, long term pit evolution is poorly understood relative to their more common sand-only counterparts. Alterations to seafloor topography from dredging shelf sediment resources can potentially affect oil and gas infrastructure or other resources of concern (i.e. historic shipwrecks) located proximal to dredge pits. Site-specific data required to make accurate predictions and empirical measurements to test and validate predictive models were only available for Peveto Channel offshore Holly Beach, Louisiana. Here we present new geophysical and geological data (bathymetry, sidescan, subbottom, and radionuclide of sediment cores) and physical oceanographic observations (hydrodynamics and sediment dynamics) collected at Raccoon Island (dredged in 2013) dredge pit in Louisiana. These field data collections along with pre-existing data provide a time-series to capture evolution at Raccoon Island post-excavation. Conceptual morphological models will be developed for dredge pit evolution and testing effectiveness of setback buffers protecting pipelines, habitats, and cultural resources. Our results will increase decision making ability regarding safety and protecting environmental and cultural resources, and better management of valuable sand resources.

  9. Oil and gas developments in Arkansas, north Louisiana, and east Texas in 1984

    SciTech Connect

    Tsoukalas, D.; Wright, A.E.; Kwang, J.A.

    1985-10-01

    The 1984 level of drilling activity for Arkansas, north Louisiana, and east Texas (CSD Districts 1, 9, and 24, respectively) varied slightly from 1983 levels. Both east Texas and north Louisiana had slight increases in the level of exploratory drilling, whereas Arkansas exploratory drilling decreased. However, success rates for exploratory drilling rose in all 3 areas. Development drilling decreased in east Texas and Arkansas, but increased substantially in north Louisiana. Success rates for development drilling increased in north Louisiana, but decreased in east Texas and Arkansas, but increased substantially in north Louisiana. Success rates for development drilling increased in north Louisiana, but decreased in east Texas and Arkansas. 1 figure, 5 tables.

  10. Water resources of Calcasieu Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.; Prakken, Lawrence B.

    2017-01-12

    Information concerning the availability, use, and quality of water in Calcasieu Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://dx.doi.org/10.5066/F7P55KJN) are the primary sources of the information presented here.

  11. Geopressured-geothermal well activities in Louisiana

    SciTech Connect

    John, C.J.

    1992-10-01

    Since September 1978, microseismic networks have operated continuously around US Department of Energy (DOE) geopressured-geothermal well sites to monitor any microearthquake activity in the well vicinity. Microseismic monitoring is necessary before flow testing at a well site to establish the level of local background seismicity. Once flow testing has begun, well development may affect ground elevations and/or may activate growth faults, which are characteristic of the coastal region of southern Louisiana and southeastern Texas where these geopressured-geothermal wells are located. The microseismic networks are designed to detest small-scale local earthquakes indicative of such fault activation. Even after flow testing has ceased, monitoring continues to assess any microearthquake activity delayed by the time dependence of stress migration within the earth. Current monitoring shows no microseismicity in the geopressured-geothermal prospect areas before, during, or after flow testing.

  12. Flood monitoring network in southeastern Louisiana

    USGS Publications Warehouse

    McCallum, Brian E.

    1994-01-01

    A flood monitoring network has been established to alert emergency operations personnel and the public about hydrologic conditions in the Amite River Basin. The U.S. Geological Survey (USGS), in cooperation with the Louisiana Office of Emergency Preparedness (LOEP), has installed a real-time data acquisition system to monitor rainfall and river stages in the basin. These data will be transmitted for use by emergency operations personnel to develop flood control and evacuation strategies. The current river stages at selected gaging stations in the basin also will be broadcast by local television and radio stations during a flood. Residents can record the changing river stages on a basin monitoring map, similar to a hurricane tracking map.

  13. Ivermectin resistant Haemonchus contortus in Louisiana lambs.

    PubMed

    Miller, J E; Barras, S R

    1994-12-01

    Fifteen weaned crossbred (Suffolk x Louisiana Native) lambs were treated with albendazole (10 mg kg-1) to remove existing nematode infections. They were inoculated with Haemonchus contortus infective larvae from a residual population surviving treatment with the oral formulation of ivermectin (0.2 mg kg-1). One group of five lambs remained untreated, another group of five was treated with the injectable formulation of ivermectin (0.2 mg kg-1), and a third group of five was treated with the oral formulation of ivermectin (0.2 mg kg-1). Subsequent to the treatments, there was essentially no difference in mean fecal egg count or mean number of H. contortus recovered at necropsy between the three groups.

  14. Louisiana, Texas fabrication yards on busy upswing

    SciTech Connect

    Pagano, S.S. )

    1994-04-01

    Responding to the continued push to produce natural gas reserves, Texas and Louisiana fabrication yards anticipate a busy 1994 season. Sixty-five oil and gas production platforms are under construction for major companies and independents; total platforms built in 1994 could approach 100. While oil prices are still volatile, most projects are focusing on shallow-water fields. Advanced technology has helped fabricators improve designs by making structures lighter and more cost-effective. PC-Based software helps yards perform more thorough analyses of a structure, which means towers and fixed platforms can be more economically built. Software also enables yards to design cost-effective structures to develop fields with a marginal level of reserves. Several projects currently under development or recently completed are described.

  15. Water resources of Claiborne Parish, Louisiana

    USGS Publications Warehouse

    Fendick, Robert B.; Prakken, Lawrence B.; Griffith, Jason M.

    2013-01-01

    This fact sheet summarizes basic information on the water resources of Claiborne Parish. Information on groundwater and surface-water availability, quality, development, use, and trends is based on previously published reports listed in the Cited References section. In 2010, about 2.60 million gallons per day (Mgal/d) of water were withdrawn in Claiborne Parish, Louisiana, including about 2.42 Mgal/d from groundwater sources and 0.18 Mgal/d from surface-water sources. Public-supply use accounted for about 84 percent of the total water withdrawn. Other categories of use included industrial, rural domestic, livestock, and general irrigation. Water-use data collected at 5-year intervals from 1960 to 2010 indicated that total water withdrawals in the parish have ranged from about 2.6 to 3.9 Mgal/d.

  16. Geodetic subsidence rate in coastal Louisiana

    NASA Astrophysics Data System (ADS)

    Abdollahzadeh, M.; Dixon, T. H.; Malservisi, R.

    2013-12-01

    Southern coastal Louisiana is experiencing significant subsidence, leading to land loss and increasing the risk of storm-related flooding. Several processes contribute to this subsidence, with differing spatial and temporal variations. Here we report on regional subsidence as measured by a network of continuously recording, high precision GPS stations, and attempt to characterize it. Our results show that the short-term subsidence rate of parts of the Mississippi delta is considerably higher than surrounding coastal areas. Sediment compaction, low-angle faulting and regional subsidence associated with mass loading appear to be the major factors controlling subsidence in the delta. The coastal regions outside of the delta undergo slower subsidence, probably related to factors such as fluid withdrawal (ground water, petroleum and natural gas extraction).

  17. Maximum hydrocarbon window determination in South Louisiana

    SciTech Connect

    Leach, W.G. )

    1993-03-29

    This is the third and final part of a three part article about the distribution of hydrocarbons in the Tertiary sands of South Louisiana. Based on many individual plots, it was found that hydrocarbon distribution will vary according to the depth of abnormal pressure and lithology. The relation of maximum hydrocarbon distribution to formation fracture strength or depth opens the door to the use of a maximum hydrocarbon window (MHW) technique. This MHW technique can be used as a decision making tool on how deep to drill a well, particularly how deep to drill a well below the top of abnormal pressure. The paper describes the benefits of the MHW technique and its future potential for exploration and development operations.

  18. Flood tracking chart, Amite River Basin, Louisiana

    USGS Publications Warehouse

    Callender, Lawrence E.; McCallum, Brian E.; Brazelton, Sebastian R.; Anderson, Mary L.; Ensminger, Paul A.

    1998-01-01

    The Amite River Basin flood tracking chart is designed to assist emergency response officials and the local public in making informed decisions about the safety of life and property during floods along the Amite and Comite Rivers and Bayou Manchac in southeastern Louisiana. This chart is similar in concept to the charts used to track hurricanes; the user can record the latest river stage information at selected gaging stations and the latest flood crest predictions. The latest stage data can be compared to historical flood peaks as well as to the slab or pier elevation of a threatened property. The chart also discusses how to acquire the latest river stage data from the Internet and a recorded voice message.

  19. Flood tracking chart, Amite River basin, Louisiana

    USGS Publications Warehouse

    Callender, Lawrence; McCallum, Brian E.; Brazelton, Sebastian R.

    1996-01-01

    The Amite River Basin flood tracking chart is designed to assist emergency response officials and the local public in making informed decisions about the safety of life and property during floods along the Amite and Comite Rivers and Bayou Manchac in southeastern Louisiana. This chart is similar in concept to the charts used to track hurricanes; the user can record the latest river stage information at selected gaging stations and the latest flood crest predictions. The latest stage data can be compared to historical flood peaks as well as to the slab or pier elevation of a threatened property. The chart also discusses how to acquire the latest river stage data from the Internet and a recorded voice message.

  20. Louisiana slope salt-ridge continuity confirmed

    SciTech Connect

    Lowrie, A.; Hoffman, K.S.; Sullivan, N.

    1989-03-01

    The Louisiana offshore is a world-class hydrocarbon province. Abundant reservoirs develop as the result of interaction between salt tectonics and sedimentation. Thus, it is essential to know both regional and local characteristics of the extent and timing of salt tectonics as an aid in hydrocarbon exploration. Exploration mythology mandates that salt domes and ridges are virtually random across the slope area. In sharp contrast, the authors describe a definite pattern to the salt ridges of slightly concave (to the north) arcs, with the southernmost arc located along the Sigsbee Escarpment and the northernmost along the shelf break. Furthermore, salt domes may not be truly randomly located but rather part of ancestral or existent salt ridges. Confirming data are provided by dip bathymatric and seismic profiles. The bathymetric profiles are at 5-mi (8-km) spacings from 1987 published charts of the Gulf of Mexico. Dip seismic lines reveal that bathymetric highs are associated with underlying salt. Buried salt accumulations are surficially expressed by actual ridges and domes, a leveling of sea floor, or a local decrease in the rate of regional slope descent. Salt is the Neogene-age basement of the Louisiana slope. The existence of an overall salt-ridge pattern implies that there is a single dynamic geologic system controlling the evolution of this slope. As salt tectonic rates and timing are deciphered for specific sites along dip, intervening rates may be interpolated to unmapped zones. Confirming an overall salt tectonic pattern is mandatory prior to quantifying regional and specific rates for the whole slope.

  1. Louisiana NASA EPSCoR Project

    NASA Technical Reports Server (NTRS)

    Wefel, John P.

    2002-01-01

    In 1994, the National Aeronautics and Space Administration issued a Cooperative Agreement (CA) to the State of Louisiana, through the Louisiana Board of Regents (BOB), for the performance of scientific research under the Experimental Program to Stimulate Competitive Research (EPSCoR) Project. Originally constructed as a three-year program with an optional two-year follow on, this federal-state partnership culminated on 31 October 2001, including two CA extensions. The total value of the project reached $3.3M in NASA funding, matched by $2.75M in BOB funds, and supplemented by several million dollars in institutional contributions. Three Research Clusters comprised the state-wide research effort coupled with scientific/technical management and a teacher involvement component. The three research clusters addressed the Enterprises of Space Science, Earth Science and Aerospace Technology with research in High Energy Astrophysics, the Global Carbon Cycle, and Propulsion. Ten universities, over two dozen faculty, over 150 students and numerous support personnel were involved. All of the scientific and technical objectives were met or exceeded. In aggregate, the clusters generated about $18M in outside support, better than a 2:1 return on investment (better than 5:1 considering only the NASA investment). Moreover, two of the clusters have advanced to the level of applying for major NSF research center designation. This project was a trial of the model of building research infrastructure through mentoring. While not completely successful, the results at the smaller institutions were, none the less, positive. Faculty were engaged in major research and involved their students. Administrations improved their capabilities to handle grants and contracts. Faculty release time was granted, research space was provided and, in some cases, equipment was made available for the research. Some of the faculty at these schools have remained involved in research and/or formed

  2. Streamlined Island

    NASA Image and Video Library

    2014-04-15

    This image from NASA 2001 Mars Odyssey spacecraft shows a streamlined island in a broad channel in Chryse Planitia. The channel is part of the outflow region of Lobo Vallis, a northern branch of Kasei Valles.

  3. Devon Island

    Atmospheric Science Data Center

    2013-04-17

    article title:  Mars Researchers Rendezvous on Remote Arctic Island   ... each summer since 1999, researchers from NASA's Haughton-Mars Project and the Mars Society reside at this "polar desert" location to study the geologic and ...

  4. Island of Okinawa, Japan

    NASA Technical Reports Server (NTRS)

    1982-01-01

    The island of Okinawa, (26.5N, 128.0E) largest of the Ryukyu Islands, Japan. The Ryukyu island group lies south of the main home islands of Japan in an arc towards the Chinese island Republic of Taiwan. As is typical throughout the Japanese home islands, intense urban development can be observed all over the island in this near vertical view.

  5. 78 FR 12750 - South Louisiana Electric Cooperative Association; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-25

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission South Louisiana Electric Cooperative Association; Notice of Filing Take notice that on January 29, 2013, South Louisiana Electric Cooperative Association (SLECA) filed an...

  6. Remote sensing as an aid to route evaluation for relocated Louisiana Highway 1

    NASA Technical Reports Server (NTRS)

    Thoms, R. L.; Whitehurst, C. A.; Monte, J. A.

    1974-01-01

    NASA aerial photography in the form of color infrared and color positive transparencies is used as an aid for evaluation of the route proposed for relocated Louisiana Highway 1, between LaRose and Golden Meadow, in South Louisiana.

  7. Remote sensing as an aid to route evaluation for relocated Louisiana Highway 1

    NASA Technical Reports Server (NTRS)

    Thoms, R. L.; Monte, J. A.

    1973-01-01

    Aerial photography in the form of color infrared and color positive transparencies was used as an aid for evaluation of the route proposed for relocated Louisiana Highway 1, between LaRose and Golden Meadows, in South Louisiana.

  8. Cost-Effectiveness Analysis of the Residential Provisions of the 2015 IECC for Louisiana

    SciTech Connect

    Mendon, Vrushali V.; Zhao, Mingjie; Taylor, Zachary T.; Poehlman, Eric A.

    2016-02-15

    The 2015 IECC provides cost-effective savings for residential buildings in Louisiana. Moving to the 2015 IECC from the 2009 IECC base code is cost-effective for residential buildings in all climate zones in Louisiana.

  9. Comprehensive Sediment Management to Improve Wetland Sustainability in Coastal Louisiana

    NASA Astrophysics Data System (ADS)

    Khalil, S.; Freeman, A. M.; Raynie, R.

    2016-02-01

    Human intervention has impaired the Mississippi River's ability to deliver sediment to its deltaic wetlands, and as a consequence acute land loss in coastal Louisiana has resulted in an unprecedented ecocatastrophe. Since the 1930s, Louisiana has lost approximately 5,000 square kilometers of coastal land, and is continuing to lose land at the rate of approximately 43 square kilometers/year. This extreme rate of land loss threatens a range of key national assets and important communities. Coastal communities across the world as well as in Louisiana have realized the importance of sediment for the continuation of their very existence in these productive but vulnerable regions. Ecological restoration can only be undertaken on a stable coastline, for which sedimentological restoration is needed. A large-scale effort to restore coastal Louisiana is underway, guided by Louisiana's Comprehensive Master Plan for a Sustainable Coast. This 50-year, $50-billion plan prescribes 109 protection and restoration projects to reduce land loss, maintain and restore coastal environments and sustain communities. Nowhere else has a restoration and protection program of this scale been developed or implemented, and critical to its success is the optimized usage of limited fluvial and offshore sediment resources, and a keen understanding of the complex interactions of various geological/geophysical processes in ecosystem restoration. A comprehensive sediment management plan has been developed to identify and delineate potential sediment sources for restoration, and to provide a framework for managing sediment resources wisely, cost effectively, and in a systematic manner. The Louisiana Sediment Management Plan provides regional strategies for improved comprehensive management of Louisiana's limited sediment resources. Adaptive management via a robust system-wide monitoring plays an important role along with a regional approach for the efficient management of sediment resources.

  10. Research in elementary particle physics. [Dept. of Physics and Astronomy, Louisiana State Univ,. Baton Rouge, Louisiana

    SciTech Connect

    Chan, L.H; Haymaker, R.; Imlay, R.; McNeil, R.; Metcalf, W.; Svoboda, R.

    1992-01-01

    Theoretical work on effective action expansion on an effective low; energy theory of hadron, dynamical symmetry breaking, and lattice gauge theories is described. The high-energy experimental group at Louisiana State University has analyzed data on a neutrino oscillation experiment at LAMPF. Preparations for the LSND neutrino experiment have stated. IMB data have also been analyzed. On the ZEUS electron n-proton colliding bean experiment, the production of the barrel calorimeter has been completed. Several modules of the calorimeter have been tested at Fermilab, and preparations for data taking are underway.

  11. Monitoring and First Discovery of the Mexican Rice Borer Eoreuma loftini (Lepidoptera: Crambidae) in Louisiana

    USDA-ARS?s Scientific Manuscript database

    The Mexican rice borer, Eoreuma loftini, has expanded its range from the Lower Rio Grande Valley to east Texas, and now into southwest Louisiana. Louisiana Department of Agricultural and Forestry and Louisiana State University AgCenter scientists forecast that natural and unintended movement will r...

  12. 40 CFR 81.53 - Southern Louisiana-Southeast Texas Interstate Air Quality Control Region.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Southern Louisiana-Southeast Texas... Designation of Air Quality Control Regions § 81.53 Southern Louisiana-Southeast Texas Interstate Air Quality Control Region. The Southern Louisiana-Southwest Texas Interstate Air Quality Control Region has been...

  13. 78 FR 47697 - Public Water System Supervision Program Revision for the State of Louisiana

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-06

    ... AGENCY Public Water System Supervision Program Revision for the State of Louisiana AGENCY: United States... that the State of Louisiana is revising its approved Public Water System Supervision Program. Louisiana has adopted three EPA drinking water rules, namely the: 1) Long Term 2 Enhanced Surface...

  14. The "Louisiana Architecture Curriculum." A Briefing Document Prepared for Leslie P. Tassin, State Historic Preservation Officer.

    ERIC Educational Resources Information Center

    Duncan, Patricia L.

    The Louisiana Department of Education produces two curriculum guides for use in teaching Louisiana Studies at the eighth grade level. Very little information on Louisiana architecture is included. The Division of Historic Preservation proposed and obtained funds for a cooperative project between themselves and the Department of Education that…

  15. 30 CFR 918.15 - Approval of Louisiana regulatory program amendments.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Approval of Louisiana regulatory program amendments. 918.15 Section 918.15 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE LOUISIANA § 918.15 Approval of Louisiana...

  16. The Impact of Hurricanes Katrina and Rita on Louisiana School Nurses

    ERIC Educational Resources Information Center

    Broussard, Lisa; Myers, Rachel; Meaux, Julie

    2008-01-01

    In the fall of 2005, the coast of Louisiana was devastated by two hurricanes, Katrina and Rita. Not only did these natural disasters have detrimental effects for those directly in their path, the storms had an impact on the lives of everyone in Louisiana. The professional practice of many Louisiana school nurses was affected by several factors,…

  17. 30 CFR 918.20 - Approval of Louisiana abandoned mine land reclamation plan.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Approval of Louisiana abandoned mine land... § 918.20 Approval of Louisiana abandoned mine land reclamation plan. The Secretary approved the Louisiana abandoned mine land reclamation plan, as submitted on February 3, 1986, effective December 10...

  18. 30 CFR 918.20 - Approval of Louisiana abandoned mine land reclamation plan.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Approval of Louisiana abandoned mine land... § 918.20 Approval of Louisiana abandoned mine land reclamation plan. The Secretary approved the Louisiana abandoned mine land reclamation plan, as submitted on February 3, 1986, effective December 10...

  19. 30 CFR 918.25 - Approval of Louisiana abandoned mine land reclamation plan amendments.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Approval of Louisiana abandoned mine land reclamation plan amendments. 918.25 Section 918.25 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND... STATE LOUISIANA § 918.25 Approval of Louisiana abandoned mine land reclamation plan amendments. The...

  20. 30 CFR 918.25 - Approval of Louisiana abandoned mine land reclamation plan amendments.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Approval of Louisiana abandoned mine land reclamation plan amendments. 918.25 Section 918.25 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND... STATE LOUISIANA § 918.25 Approval of Louisiana abandoned mine land reclamation plan amendments. The...

  1. 30 CFR 918.20 - Approval of Louisiana abandoned mine land reclamation plan.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Approval of Louisiana abandoned mine land... § 918.20 Approval of Louisiana abandoned mine land reclamation plan. The Secretary approved the Louisiana abandoned mine land reclamation plan, as submitted on February 3, 1986, effective December 10...

  2. 30 CFR 918.25 - Approval of Louisiana abandoned mine land reclamation plan amendments.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Approval of Louisiana abandoned mine land reclamation plan amendments. 918.25 Section 918.25 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND... STATE LOUISIANA § 918.25 Approval of Louisiana abandoned mine land reclamation plan amendments. The...

  3. The Effect of Distinguished Educators on Academic Gain of Louisiana Academically Unacceptable Schools

    ERIC Educational Resources Information Center

    Scroggins, Ruby C.

    2012-01-01

    The purpose of this study was to examine the degree of academic growth of Academically Unacceptable schools in Louisiana which have been assigned a Distinguished Educator. Distinguished Educators are external change agents who are placed in Academically Unacceptable schools in Louisiana. The data were generated from the Louisiana Department of…

  4. 30 CFR 918.20 - Approval of Louisiana abandoned mine land reclamation plan.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Approval of Louisiana abandoned mine land... Louisiana abandoned mine land reclamation plan, as submitted on February 3, 1986, effective December 10, 1986. Copies of the approved plan are available at: (a) Louisiana Department of Natural...

  5. 78 FR 9406 - Southwest Louisiana Area Maritime Security Regional Sub-Committee; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-08

    ... SECURITY Coast Guard Southwest Louisiana Area Maritime Security Regional Sub- Committee; Vacancies AGENCY... interested in serving on the Southwest Louisiana Area Maritime Security Regional Sub-Committee of the Sabine...-436, 86 Stat. 470(5 U.S.C. App.2). Southwest Louisiana Area Maritime Security Regional...

  6. The "Louisiana Architecture Curriculum." A Briefing Document Prepared for Leslie P. Tassin, State Historic Preservation Officer.

    ERIC Educational Resources Information Center

    Duncan, Patricia L.

    The Louisiana Department of Education produces two curriculum guides for use in teaching Louisiana Studies at the eighth grade level. Very little information on Louisiana architecture is included. The Division of Historic Preservation proposed and obtained funds for a cooperative project between themselves and the Department of Education that…

  7. The Impact of Hurricanes Katrina and Rita on Louisiana School Nurses

    ERIC Educational Resources Information Center

    Broussard, Lisa; Myers, Rachel; Meaux, Julie

    2008-01-01

    In the fall of 2005, the coast of Louisiana was devastated by two hurricanes, Katrina and Rita. Not only did these natural disasters have detrimental effects for those directly in their path, the storms had an impact on the lives of everyone in Louisiana. The professional practice of many Louisiana school nurses was affected by several factors,…

  8. 76 FR 61686 - Louisiana Public Service Commission v. Entergy Corporation, Entergy Services, Inc., Entergy...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-05

    ..., Inc., Entergy Gulf States Louisiana, LLC, Entergy Texas, Inc. Notice of Complaint Take notice that on... Orleans, Inc., Entergy Texas, Inc., and Entergy Gulf States Louisiana, LLC (Respondents), seeking a ruling...., and Entergy Gulf States Louisiana, LLC, as listed on the Commission's list of Corporate Officials....

  9. 76 FR 49468 - Louisiana Public Service Commission v. Entergy Corporation, Entergy Services, Inc., Entergy...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-10

    ..., Inc., Entergy Gulf States Louisiana, L.L.C., Entergy Texas, Inc.; Notice of Complaint Take notice that... Mississippi, Inc., Entergy New Orleans, Inc., Entergy Gulf States Louisiana, LLC, and Entergy Texas, Inc...., Entergy Mississippi Inc., Entergy New Orleans, Inc., Entergy Gulf States Louisiana, Inc., and...

  10. 76 FR 58804 - Notice of Complaint; Louisiana Public Service Commission v. Entergy Corporation, Entergy Services...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-22

    ...., Entergy New Orleans, Inc., Entergy Gulf States Louisiana, LLC, Entergy Texas, Inc. Take notice that on... Mississippi, Inc., Entergy New Orleans, Inc., Entergy Gulf States Louisiana, L.L.C., and Entergy Texas, Inc... New Orleans, Inc., Entergy Gulf States Louisiana, Inc., and Entergy Texas, Inc. as listed on...

  11. Geologic controls on regional and local erosion rates of three northern Gulf of Mexico barrier-island systems

    USGS Publications Warehouse

    Twitchell, David C.; Flocks, James G.; Pendleton, Elizabeth; Baldwin, Wayne E.

    2013-01-01

    The stratigraphy of sections of three barrier island systems in the northeastern Gulf of Mexico (Apalachicola, Mississippi, and Chandeleur) have been mapped using geophysical and coring techniques to assess the influence of geologic variations in barrier lithosomes and adjoining inner shelf deposits on long-term rates of shoreline change at regional and local scales. Regional scale was addressed by comparing average geologic characteristics of the three areas with mean shoreline-change rates for each area. Regionally, differences in sand volume contained within the part of the barrier lithosome above sea level, sand volume on the inner shelf, and to a lesser extent, sediment grain size correlate with shoreline change rates. Larger sand volumes and coarser grain sizes are found where erosion rates are lower. Local scale was addressed by comparing alongshore variations in barrier island and inner shelf geology with alongshore variations in shoreline change. Locally, long-term shoreline change rates are highest directly shoreward of paleovalleys exposed on the inner shelf. While geology is not the sole explanation for observed differences in shoreline change along these three coastal regions, it is a significant contributor to change variability.

  12. The Impact of the Louisiana Scholarship Program on Racial Segregation in Louisiana Schools. Louisiana Scholarship Program Evaluation Report #3. Technical Report

    ERIC Educational Resources Information Center

    Egalite, Anna J.; Mills, Jonathan N.; Wolf, Patrick J.

    2016-01-01

    The question of how school choice programs affect the racial stratification of schools is highly salient in the field of education policy. We use a student-level panel data set to analyze the impacts of the Louisiana Scholarship Program (LSP) on racial segregation in public and private schools. This targeted school voucher program provides funding…

  13. Coastal Prairie Restoration Information System: Version 1 (Louisiana)

    USGS Publications Warehouse

    Allain, Larry

    2007-01-01

    The Coastal Prairie Restoration Information System (CPR) is a Microsoft Access database that allows users to query and view data about Louisiana coastal prairie species. Less than 0.1% of Louisiana's coastal prairie vegetation remains in a relatively undisturbed condition. Encompassing as much as 1 million hectares of land, coastal prairie is a hybrid of coastal wetlands and tall grass prairie. Over 550 plant species have been identified in Louisiana's coastal prairies to date. Efforts to conserve and restore this endangered ecosystem are limited by the ability of workers to identify and access knowledge about this diverse group of plants. In this database, a variety of data are provided for each of 650 coastal prairie species in Louisiana. The database was developed at the U.S. Geological Survey National Wetlands Research Center by Larry Allain, with software development by Myra Silva. Additional funding was provided by the biology department of the University of Louisiana at Lafayette (ULL), the ULL Center for Environmental and Ecological Technology, and the National Science Foundation.

  14. Diomede Islands, Bering Straight

    NASA Image and Video Library

    2008-04-30

    The Diomede Islands consisting of the western island Big Diomede, and the eastern island Little Diomede are two rocky islands located in the middle of the Bering Strait between Russia and Alaska. This image was acquired by NASA Terra satellite.

  15. Bahama Islands

    NASA Image and Video Library

    1983-04-09

    STS006-45-097 (4-9 April 1983) --- This photograph was taken with a handheld 70mm camera aimed through the “ceiling” windows of the Earth-orbiting space shuttle Challenger during its five-day STS-6 mission. A beautiful photo shows the contrast between the islands, clouds, shallow water and deep water. Islands of the Bahamas seen are New Providence (upper left) and Eleuthera (right). Northeast Providence Channel is at the upper edge and Exuma Sound is at the lower left with the open Atlantic along the right edge. The wind, from the south, causes a long cloud to develop downwind from Eleuthera Point. Photo credit: NASA

  16. Erosional patterns of the Isles Dernieres, Louisiana, in relation to meteorological influences

    USGS Publications Warehouse

    Dingler, J.R.; Reiss, T.E.; Plant, N.G.

    1993-01-01

    Over the past 100 years, the Isles Dernieres, a low-lying barrier-island chain along the central Louisiana coast, has eroded extensively. This erosion has resulted in more than 1 km of northward beach-face retreat and the loss of 71% of the total island area. The primary causes for the erosion are wind and wave attack, diminished sand supply, and relative sea-level rise. Five years of detailed topographic surveys show that a beach on the central Isles Dernieres changed significantly in both shape and sediment volume; however, the pattern of change was not the same each year. In contrast to the relatively slow erosion caused by cold fronts, hurricane Gilbert, a category 5 hurricane that passed about 800 km south of the Isles Dernieres in September 1988, produced differential beach-face retreat of about 9 m at mean sea level and 40 m at an elevation of 0.5 m. Most of the sediment eroded from the beach face was deposited on the backshore, which resulted in only a small loss of sediment from the beach and a noteworthy decrease in beach-face slope. During the two years following hurricane Gilbert, the mean-sea-level contour remained stationary while the beach face slowly returned to its pre-Gilbert shape. "Cold-front' magnitude of retreat is expected to continue until another large hurricane alters the erosional pattern. -from Authors

  17. Seismic characteristics of Pleistocene glacial cycles near shelf edge, offshore Louisiana, Gulf of Mexico

    SciTech Connect

    Watkins, J.S.; Schneider, L.; Hilterman, F.

    1987-05-01

    Seismic stratigraphic studies of the shelf edge and the upper slope basins in the southern parts of the South Marsh Island, Eugene Island, Ship Shoal, and Green Canyon areas of the Louisiana outer continental shelf reveal at least four Pleistocene seismic stratigraphic cycles. These apparently reflect cyclic depositional patterns associated with glacially driven highstands and lowstands of sea level during this time. In the upper slope basins, a strong continuous reflector probably of turbiditic origin marks the base of each cycle. This reflector is thought caused by initial slumping occurring as sea level begins to fall. Overlying this reflector is a zone of chaotic-to-hummocky reflectors thought caused by slumping associated with knick-point erosion and channel-cutting during falling sea level. The upper portion of the cycle is largely reflectorless or weakly reflective punctuated with occasional strong, continuous turbidite reflectors. The reflectorless portion of the cycles is thought to represent homogeneous hemipelagic sedimentation during highstands. Shelf reflectors are usually moderately strong and continuous. A strong reflection(s), identified in some instances with gas sands, marks several sea level lowstands. Erosion is locally evident during lowstands. Otherwise, shelf reflectors are relatively uniform and show few characteristics associated with rising, falling, or highstanding parts of the sea level cycle.

  18. Water resources of Assumption Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Lawrence B.; Lovelace, John K.

    2013-01-01

    Information concerning the availability, use, and quality of water in Assumption Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for management of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System (http://waterdata.usgs.gov/nwis) are the primary sources of the information presented here. In 2010, about 21.4 million gallons per day (Mgal/d) of water were withdrawn in Assumption Parish, including about 12.4 Mgal/d from surface-water sources and 9.03 Mgal/d from groundwater sources. Withdrawals for industrial use accounted for about 16.4 Mgal/d or 76 percent of the total water withdrawn. Other categories of use included public supply, rural domestic, livestock, general irrigation, and aquaculture.Water-use data collected at 5-year intervals from 1960 to 2010 indicated that water withdrawals peaked in 2000 at about 29.7 Mgal/d.

  19. Water resources of Concordia Parish, Louisiana

    USGS Publications Warehouse

    White, Vincent E.

    2017-02-24

    IntroductionInformation concerning the availability, use, and quality of water in Concordia Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish is presented. Previously published reports and data stored in the U.S. Geological Survey’s National Water Information System are the primary sources of the information presented here.In 2010, over 50 million gallons per day (Mgal/d) of water were withdrawn in Concordia Parish, including about 28.7 Mgal/d from groundwater sources and 22.3 Mgal/d from surface-water sources. Withdrawals for agricultural use, composed of livestock, rice irrigation, general irrigation, and aquaculture accounted for about 77 percent (39.2 Mgal/d) of the total water withdrawn. Other categories of use included public supply, power generation, and rural domestic. Water-use data collected at 5-year intervals from 1960 to 2010 indicated that water withdrawals peaked in 2010.

  20. Water resources of Natchitoches Parish, Louisiana

    USGS Publications Warehouse

    Fendick, Robert B.; Prakken, Larry B.; Griffith, Jason M.

    2013-01-01

    In 2005, about 33.8 million gallons per day (Mgal/d) was withdrawn from water sources in Natchitoches Parish, Louisiana. Surface water sources accounted for about 86 percent (29.2 Mgal/d) of all withdrawals whereas groundwater sources accounted for about 14 percent (4.62 Mgal/d). Withdrawals for industrial use accounted for about 42 percent (14.1 Mgal/d) of the total water withdrawn (table 2). Other categories of use included public supply, rural domestic, livestock, rice irrigation, general irrigation, and aquaculture. The city of Natchitoches used almost 5.6 Mgal/d (about 5.2 Mgal/d of surface water and 0.4 Mgal/d of ground water) for public supply. Water-use data collected at 5-year intervals from 1960 to 2005 indicated that total water withdrawals increased from about 3.5 Mgal/d in 1960 to a peak of almost 35 Mgal/d in 2000. This fact sheet summarizes basic information on the water resources of Natchitoches Parish. Information on groundwater and surface-water availability, quality, development, use, and trends is based on previously published reports listed in the Selected References section.

  1. Water resources of Plaquemines Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Larry B.

    2013-01-01

    In 2010, about 85.1 million gallons per day (Mgal/d) of water were withdrawn in Plaquemines Parish, Louisiana. Surface-water sources accounted for almost all withdrawals; groundwater sources accounted for only 0.04 Mgal/d. Industrial use accounted for about 92 percent of the total water withdrawn. Other categories of use included public supply, rural domestic, and livestock. Water-use data collected at 5-year intervals from 1960 to 2010 indicated that water withdrawals in Plaquemines Parish peaked at about 177 Mgal/d in 1975. The peak resulted primarily from an increase in industrial surface-water withdrawals from about 23.8 Mgal/d in 1970 to 171 Mgal/d in 1975. Since 1975, water withdrawals have ranged from about 157 to 85.1 Mgal/d, with industrial surface-water withdrawals accounting for most of the variation. This fact sheet summarizes basic information on the water resources of Plaquemines Parish. Information on groundwater and surface-water availability, quality, development, use, and trends is based on previously published reports listed in the Selected References section.

  2. Water resources of St. Bernard Parish, Louisiana

    USGS Publications Warehouse

    Prakken, Larry B.

    2013-01-01

    In 2010, about 261 million gallons per day (Mgal/d) of water were withdrawn in St. Bernard Parish, Louisiana, almost entirely from surface-water sources. Industrial use accounted for about 97 percent (253 Mgal/d) of the total water withdrawn. Other categories of use included public supply, rural domestic, and livestock. Water-use data collected at 5-year intervals from 1960 to 2010 indicated that total water withdrawals in the parish ranged from about 138 to 720 Mgal/d, with industrial use of surface water making up the bulk of water withdrawals. The large decline in surface-water withdrawals from 1980 to 1985 was largely attributable to a decrease in industrial use from 654 Mgal/d in 1980 to 127 Mgal/d in 1985. This fact sheet summarizes basic information on the water resources of St. Bernard Parish. Information on groundwater and surface-water availability, quality, development, use, and trends is based on previously published reports listed in the Selected References section.

  3. Characterization of a Louisiana Bay Bottom

    NASA Astrophysics Data System (ADS)

    Freeman, A. M.; Roberts, H. H.

    2016-02-01

    This study correlates side-scan sonar and CHIRP water bottom-subbottom acoustic amplitudes with cone penetrometer data to expand the limited understanding of the geotechnical properties of sediments in coastal Louisiana's bays. Standardized analysis procedures were developed to characterize the bay bottom and shallow subsurface of the Sister Lake bay bottom. The CHIRP subbottom acoustic data provide relative amplitude information regarding reflection horizons of the bay bottom and shallow subsurface. An amplitude analysis technique was designed to identify different reflectance regions within the lake from the CHIRP subbottom profile data. This amplitude reflectivity analysis technique provides insight into the relative hardness of the bay bottom and shallow subsurface, useful in identifying areas of erosion versus deposition from storms, as well as areas suitable for cultch plants for state oyster seed grounds, or perhaps other restoration projects. Side-scan and CHIRP amplitude reflectivity results are compared to penetrometer data that quantifies geotechnical properties of surface and near-surface sediments. Initial results indicate distinct penetrometer signatures that characterize different substrate areas including soft bottom, storm-deposited silt-rich sediments, oyster cultch, and natural oyster reef areas. Although amplitude analysis of high resolution acoustic data does not directly quantify the geotechnical properties of bottom sediments, our analysis indicates a close relationship. The analysis procedures developed in this study can be applied in other dynamic coastal environments, "calibrating" the use of synoptic acoustic methods for large-scale water bottom characterization.

  4. Implications for women of Louisiana's law requiring abortion providers to have hospital admitting privileges.

    PubMed

    Roberts, S C M; Fuentes, L; Kriz, R; Williams, V; Upadhyay, U D

    2015-05-01

    In 2014, Louisiana passed a law requiring abortion providers to have hospital admitting privileges. This law is temporarily on hold while a court case challenging it continues. We aimed to describe the population who would be affected if the law goes into effect and how closures of between three and five Louisiana abortion facilities would affect the distance Louisiana women would need to travel for an abortion. We abstracted patient data from three of the five Louisiana abortion care facilities in the year before the law was scheduled to take effect. We then estimated distance traveled and distances women would need to travel if clinics close. Half (53%) of women who had an abortion had no education beyond high school, most were black (62%) or white (30%), three fourths (73%) had a previous live birth, and most (89%) were having a first-trimester abortion. Seventy-nine percent resided in Louisiana and 15% in Texas. The parishes in which abortion patients resided had lower median income and higher percentage poverty than the Louisiana average. Abortion patients residing in Louisiana traveled a mean distance of 58 miles each way for an abortion. If all Louisiana facilities close, the mean distance women would need to travel would more than triple to 208 miles, and the proportion of Louisiana women of reproductive age who live more than 150 miles from an abortion facility would increase from 1% to 72%. The admitting privileges law will likely significantly increase the distance Louisiana women need to travel for an abortion. This burden is likely to disproportionately affect Louisiana's more vulnerable residents. If all Louisiana abortion facilities close due to Louisiana's hospital admitting privileges law, the mean distance women would need to travel for an abortion would more than triple from 58 to 208 miles. Louisiana's law would thus present a considerable burden on many Louisiana women, particularly those who are more vulnerable. Copyright © 2015 Elsevier Inc

  5. Ghost fishing activity in derelict blue crab traps in Louisiana.

    PubMed

    Anderson, Julie A; Alford, Amy B

    2014-02-15

    Derelict crab traps impact the coastal ecosystem through continued catch of target species and species of conservation, economic, or recreational importance. During volunteer-supported crab trap cleanups in 2012 and 2013, we quantified ghost fishing activity in derelict crab traps in coastal Louisiana through a citizen scientist program. Volunteers removed 3607 derelict traps during these events, and over 65% of traps analyzed by citizen scientists were actively ghost fishing. Additionally, volunteers identified 19 species enmeshed in derelict traps, including a combination of fresh and saltwater species. We also detected a significant difference in the number of blue crab in actively ghost fishing derelict traps across removal locations with estimated catches varying between 2.4 and 3.5 crabs/trap. Our instantaneous estimates of ghost fishing activity are greater than those previously thought in Louisiana, further justifying current derelict crab trap prevention and removal extension and outreach programs in Louisiana and throughout the Gulf of Mexico.

  6. Hurricane Influences on Vegetation Community Change in Coastal Louisiana

    USGS Publications Warehouse

    Steyer, Gregory D.; Cretini, Kari Foster; Piazza, Sarai C.; Sharp, Leigh A.; Snedden, Gregg A.; Sapkota, Sijan

    2010-01-01

    The impacts of Hurricanes Katrina and Rita in 2005 on wetland vegetation were investigated in Louisiana coastal marshes. Vegetation cover, pore-water salinity, and nutrients data from 100 marsh sites covering the entire Louisiana coast were sampled for two consecutive growing seasons after the storms. A mixed-model nested ANOVA with Tukey's HSD test for post-ANOVA multiple comparisons was used to analyze the data. Significantly (p<0.05) lower vegetation cover was observed within brackish and fresh marshes in the west as compared to the east and central regions throughout 2006, but considerable increase in vegetation cover was noticed in fall 2007 data. Marshes in the west were stressed by prolonged saltwater logging and increased sulfide content. High salinity levels persisted throughout the study period for all marsh types, especially in the west. The marshes of coastal Louisiana are still recovering after the hurricanes; however, changes in the species composition have increased in these marshes.

  7. Threatened and endangered wildlife survey: Vacherie Dome area, Louisiana

    SciTech Connect

    Not Available

    1985-01-01

    Review of the available literature concerning the previous distribution of animals now considered to be threatened or endangered suggests that the following species may once have occupied the project area in Webster and Bienville Parishes, Louisiana: Florida panther, bald eagle, Arctic peregrine falcon, red-cockaded woodpecker, ivory-billed woodpecker, red wolf, and Eskimo curlew. The Louisiana pine snake is not officially listed at this time although it is considered to be a candidate for inclusion on the federal list pending further research on its population and distribution. Based on previous experience within northwestern Louisiana and other recent evidence, it is concluded that the red-cockaded woodpecker (Picoides borealis) is the only animal listed or proposed as threatened or endangered which may actually now be found there.

  8. Structure and technology of manufacturing in Texas and Louisiana

    SciTech Connect

    Dunstan, R.H.; Long, W.T. III

    1987-01-01

    The oil price decline since late 1985 affects manufacturing more in Texas and Louisiana than in the rest of the US. The primary reason for this is that the manufacturing sector in these two states relies more heavily on energy - both as a factor input and as a source of output demand. Secondly, based on this study's results, inputs are more easily substituted in Texas and Louisiana's manufacturing. An implication is that the expected employment losses from reduced energy industry demand are likely to be intensified by the substitution of lower-priced energy for labor. In addition, capital subsidies provided as part of state economic development efforts may not have the effect of increasing labor demand in Texas and Louisiana. 3 figures, 4 tables.

  9. Anatahan Island

    Atmospheric Science Data Center

    2013-04-19

    ... Sea plate creates a series of island arc volcanoes and the Earth's deepest ocean trench. Anatahan had no known historical eruptions ... bomber, lies on the north side edge of the craters flat lands. MISR was built and is managed by NASA's Jet Propulsion ...

  10. Hawaiian Islands

    NASA Technical Reports Server (NTRS)

    2002-01-01

    This Multiangle Imaging Spectro-Radiometer (MISR) image of five Hawaiian Islands was acquired by the instrument's vertical- viewing (nadir) camera on June 3, 2000. The image shows the islands of Oahu, Molokai, Lanai, Maui, and Kahoolawe. The prevailing Pacific trade winds bring higher levels of rainfall to the eastern slopes of the islands, leading to a greater abundance of vegetation on the windward coasts. The small change in observation angle across the nadir camera's field-of- view causes the right-hand portion of the image to be more affected by Sun glint, making the ocean surface appear brighter. Oahu is the westernmost of the islands seen in this image. Waikiki Beach and the city of Honolulu are located on the southern shore, to the west of Diamond Head caldera. MISR is one of several Earth-observing instruments on the Terra satellite, launched in December 1999. The Terra spacecraft, the flagship of a fleet of satellites dedicated to understanding our global environment, is part of NASA's Earth Sciences Enterprise, a long-term research program dedicated to understanding how human-induced and natural changes affect our world. Image courtesy NASA/GSFC/JPL, MISR Team

  11. Remotely sensed imagery revealing the effects of hurricanes Gustav and Ike on coastal Louisiana

    USGS Publications Warehouse

    Barras, John A.; Brock, John C.; Morton, Robert A.; Travers, Laurinda J.

    2010-01-01

    Hurricane Gustav, a category 2 storm with 170 kilometers per hour (km/h) winds, approached the Louisiana coast from the south-southeast, making landfall near Cocodrie, La., on September 1, 2008 (Beven and Kimberlain, 2009); Hurricane Ike, a category 2 storm with 175 km/h winds, approached the Texas coast from the southeast, paralleling offshore of the Louisiana coast, before making landfall along the north end of Galveston Island, Tex., on September 13, 2008 (Berg, 2009). Hurricane Ike's large wind field elevated water levels, increasing coastal flooding well before making landfall (Berg, 2009). An initial land area change assessment, based on comparison of Landsat Thematic Mapper (TM) satellite imagery, acquired before 2006 and after the 2008 landfalls of Hurricanes Gustav and Ike and classified to identify land and water, reported that the water area increased by 323 square kilometers (km2) in coastal Louisiana as a result of the storms (Barras, 2009). The land area decrease of 195 km2 was less than the 513 km2 decrease reported between 2004 and 2006 (Barras and others, 2008) after the landfalls of Hurricane Katrina, a strong category 3 storm that made landfall near Buras, La., on August 29, 2005, and Hurricane Rita, a category 3 storm that made landfall just west of Johnsons Bayou, La., on September 29, 2005. The 2004 to 2006 land area decrease is 49 km2 less than the 562 km2 initial change estimate based on satellite imagery obtained two months after the 2005 storms (Barras, 2007a). The comparison area used to identify the 2004 to 2006 land area change matches the extent of historical land and water data used to quantify coastal land loss from 1956 to 2006 (Barras and others, 2008) and is 3,841 km2 less than the 33,457.7 km2 used for Barras (2006) and Barras (2009). The greater comparison area used for the 2006 to 2008 period (Barras, 2009) resulted in a 2004 to 2006 loss estimate of 525.8 km2, 13.0 km2 greater than the 512.8 km2 estimate reported in Barras

  12. Coastal Change on Gulf Islands National Seashore during Hurricane Gustav: West Ship, East Ship, Horn, and Petit Bois Islands

    USGS Publications Warehouse

    Stockdon, Hilary F.; Doran, Kara S.; Serafin, Katherine A.

    2010-01-01

    INTRODUCTION Hurricane Gustav made landfall on September 1, 2008, near Cocodrie, Louisiana, as a category 2 storm, with maximum sustained winds near 170 km/hr. Hurricane-force winds, with speeds in excess of 119 km/hr, extended along 270 km of the Louisiana coastline, from Marsh Island to the central barrier islands. Tropical-storm-force winds (speeds > 63 km/hr) were felt across the coasts of Mississippi and Alabama. Within this area of high wind and associated storm surge and waves lie the Mississippi barrier islands of West Ship, East Ship, Horn, and Petit Bois, part of the National Park Service (NPS) Gulf Islands National Seashore (GUIS). These east-west trending islands form a barrier between the Mississippi Sound to the north and the Gulf of Mexico to the south. The islands are generally less than 1 km wide with dune elevations ranging generally between 2 and 3 m, but reaching 6 m on Horn Island. The interaction of waves and currents with the low, sandy beaches forces a range of dynamic responses, such as dune erosion, overwash deposition, spit elongation, and island breaching. The passage of strong hurricanes (such as Camille in 1969 and Katrina in 2005), combined with a background signal of long-term shoreline retreat, has caused significant coastal changes on the Mississippi barrier islands, presenting management challenges for State and Federal officials, including NPS resource managers. At the request of the NPS, the U.S. Geological Survey (USGS) has processed, analyzed, and interpreted pre- and post-Hurricane-Gustav lidar topographic data for West Ship, East Ship, Horn, and Petit Bois. These data and analyses can be used to better assess the storm vulnerability of portions of GUIS by characterizing the magnitude and spatial variability of hurricane-induced coastal changes, such as shoreline retreat, dune erosion, and beach volume change. This information will provide park managers with a greater understanding of the long-term evolution of these islands

  13. Legal Considerations in End-of-Life Decisionmaking in Louisiana

    PubMed Central

    Koppel, Ann; Sullivan, Shelley M

    2011-01-01

    End-of-life directives are among the most difficult decisions that a patient or a patient's family makes because of the many moral, ethical, legal, and practical considerations. This article addresses the basic legal framework in Louisiana for end-of-life directives. Although Louisiana law provides a framework for addressing end-of-life issues, the law does not dictate outcomes or decisions. The law is often the refuge of last resort, providing unsatisfactory results. End-of-life care decisions are generally most productive when they are based on discussions between patients, their families, and their care team regarding the patient's wishes. PMID:22190883

  14. Fluid migration, HC concentration in South Louisiana Tertiary sands

    SciTech Connect

    Leach, W.G.

    1993-03-15

    This is the second part of a three part series about the distribution of hydrocarbons in the Tertiary sands of South Louisiana. Most commercial hydrocarbons have disappeared at a pressure gradient of 0.85 psi/ft and a temperature of 350 F. in the South Louisiana Tertiary. The reason is quite simple. The bulk of all hydrocarbons is concentrated near the onset of abnormal pressure and between 140 and 260 F. Very little production is found beyond this pressure/temperature environment. The article attempts to explain why hydrocarbons do not occur outside this temperature/pressure region. It discusses vertical fluid migration and probable gas and oil sources.

  15. Lithostratigraphic framework and production history of Wilcox in central Louisiana

    SciTech Connect

    Tye, R.S.; Wheeler, C.W.; Kimbrell, W.C.; Moslow, T.F.

    1988-02-01

    Complex fluvial, deltaic, and marine sedimentary processes active during deposition of the Wilcox Group in central Louisiana created multiple, discontinuous sandstones. Prolific hydrocarbon reservoirs developed in association with positive structural features or where sedimentary characteristics were favorable. Because the Wilcox Group contains numerous complex depocenters, it does not lend itself to easy regional correlation. Therefore, to better delineate the occurrence of hydrocarbon-bearing sediments and to promote further exploration, a five-fold lithostratigraphic framework is proposed for the Wilcox Group in Louisiana.

  16. Persistent Flooding in Louisiana Imaged by NASA Spacecraft

    NASA Image and Video Library

    2016-03-21

    Torrential rains in the mid-South of the United States in mid-March 2016 produced flooding throughout Texas, Louisiana and Mississippi. On March 21, 2016, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft acquired this image showing persistent flooding along the Mississippi River between the Louisiana cities of Alexandria and Natchitoches. The image covers an area of 25 to 36 miles (41 by 58 kilometers), and is located at 31.5 degrees north, 92.8 degrees west. http://photojournal.jpl.nasa.gov/catalog/PIA20533

  17. Base of fresh ground water, northern Louisiana Salt-Dome Basin and vicinity, northern Louisiana and southern Arkansas

    USGS Publications Warehouse

    Ryals, G.N.

    1980-01-01

    The National Waste Terminal Storage Program is an effort by the U.S. Department of Energy to locate and develop sites for disposal or storage of commercially produced radioactive wastes. As part of this program, salt domes in the northern Louisiana salt-dome basin are being studied to determine their suitability as repositories. Part of the U.S. Geological Survey 's participation in the program has been to describe the regional geohydrology of the northern Louisiana salt-dome basin. A map based on a compilation of published data and the interpretation of electrical logs shows the altitude of the base of freshwater in aquifers in the northern Louisiana salt-dome basin. (USGS)

  18. 5. (Credit LSU) The NcNeil Street Station from Douglas Island, ...

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

    5. (Credit LSU) The NcNeil Street Station from Douglas Island, across Cross Bayou, c1907. Note the enlarged wood-framed filter wing on the left; the coal shed on the right; and the low service auxiliary pump house on tracks on the incline on the bank leading down to Cross Bayou. From: Louisiana State University, Shreveport Archives post card collection) - McNeil Street Pumping Station, McNeil Street & Cross Bayou, Shreveport, Caddo Parish, LA

  19. Space radar image of New Orleans, Louisiana

    NASA Technical Reports Server (NTRS)

    1995-01-01

    This image of the area surrounding the city of New Orleans, Louisiana in the southeastern United States demonstrates the ability of multi-frequency imaging radar to distinguish different types of land cover. The dark area in the center is Lake Pontchartrain. The thin line running across the lake is a causeway connecting New Orleans to the city of Mandeville. Lake Borgne is the dark area in the lower right of the image. The Mississippi River appears as a dark, wavy line in the lower left. The white dots on the Mississippi are ships. The French Quarter is the brownish square near the left center of the image. Lakefront Airport, a field used mostly for general aviation, is the bright spot near the center, jutting out into Lake Pontchartrain. The image was acquired by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) during orbit 39 of space shuttle Endeavour on October 2, 1994. The area is located at 30.10 degrees north latitude and 89.1 degrees west longitude. The area shown is approximately 100 kilometers (60 miles) by 50 kilometers (30 miles). The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the C-band (horizontally transmitted and received); blue represents the L-band (vertically transmitted and received). The green areas are primarily vegetation consisting of swamp land and swamp forest (bayou) growing on sandy soil, while the pink areas are associated with reflections from buildings in urban and suburban areas. Different tones and colors in the vegetation areas will be studied by scientists to see how effective imaging radar data is in discriminating between different types of wetlands. Accurate maps of coastal wetland areas are important to ecologists studying wild fowl and the coastal environment.

  20. Space radar image of New Orleans, Louisiana

    NASA Technical Reports Server (NTRS)

    1995-01-01

    This image of the area surrounding the city of New Orleans, Louisiana in the southeastern United States demonstrates the ability of multi-frequency imaging radar to distinguish different types of land cover. The dark area in the center is Lake Pontchartrain. The thin line running across the lake is a causeway connecting New Orleans to the city of Mandeville. Lake Borgne is the dark area in the lower right of the image. The Mississippi River appears as a dark, wavy line in the lower left. The white dots on the Mississippi are ships. The French Quarter is the brownish square near the left center of the image. Lakefront Airport, a field used mostly for general aviation, is the bright spot near the center, jutting out into Lake Pontchartrain. The image was acquired by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) during orbit 39 of space shuttle Endeavour on October 2, 1994. The area is located at 30.10 degrees north latitude and 89.1 degrees west longitude. The area shown is approximately 100 kilometers (60 miles) by 50 kilometers (30 miles). The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the C-band (horizontally transmitted and received); blue represents the L-band (vertically transmitted and received). The green areas are primarily vegetation consisting of swamp land and swamp forest (bayou) growing on sandy soil, while the pink areas are associated with reflections from buildings in urban and suburban areas. Different tones and colors in the vegetation areas will be studied by scientists to see how effective imaging radar data is in discriminating between different types of wetlands. Accurate maps of coastal wetland areas are important to ecologists studying wild fowl and the coastal environment.

  1. Space Radar Image of New Orleans, Louisiana

    NASA Image and Video Library

    1998-04-14

    This image of the area surrounding the city of New Orleans, Louisiana in the southeastern United States demonstrates the ability of multi-frequency imaging radar to distinguish different types of land cover. The dark area in the center is Lake Pontchartrain. The thin line running across the lake is a causeway connecting New Orleans to the city of Mandeville. Lake Borgne is the dark area in the lower right of the image. The Mississippi River appears as a dark, wavy line in the lower left. The white dots on the Mississippi are ships. The French Quarter is the brownish square near the left center of the image. Lakefront Airport, a field used mostly for general aviation, is the bright spot near the center, jutting out into Lake Pontchartrain. The image was acquired by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) during orbit 39 of space shuttle Endeavour on October 2, 1994. The area is located at 30.10 degrees north latitude and 89.1 degrees west longitude. The area shown is approximately 100 kilometers (60 miles) by 50 kilometers (30 miles). The colors in this image were obtained using the following radar channels: red represents the L-band (horizontally transmitted and received); green represents the C-band (horizontally transmitted and received); blue represents the L-band (vertically transmitted and received). The green areas are primarily vegetation consisting of swamp land and swamp forest (bayou) growing on sandy soil, while the pink areas are associated with reflections from buildings in urban and suburban areas. Different tones and colors in the vegetation areas will be studied by scientists to see how effective imaging radar data is in discriminating between different types of wetlands. Accurate maps of coastal wetland areas are important to ecologists studying wild fowl and the coastal environment. http://photojournal.jpl.nasa.gov/catalog/PIA01300

  2. Geomorphic processes active in the Southwestern Louisiana Canal, Lafourche Parish, Louisiana

    NASA Technical Reports Server (NTRS)

    Doiron, L. N.; Whitehurst, C. A.

    1974-01-01

    The geomorphological changes causing the destruction of the banks of the Southwestern Louisiana Canal are studied by means of field work, laboratory analyses, and infrared color imagery interpretation. Turbulence and flow patterns are mapped, and related to erosion and sediment deposition processes. The accelerated erosion rate of the last decade is discussed, with two causative factors cited: (1) development of faster boats, increasing bank and bottom erosion, and (2) a subsequently larger tidal influx, with greater erosive ability. The physical properties of the canal bank materials are also analyzed. It is concluded that channel erosion progressively increases, with no indications of stabilization, until they merge with other waterways and become indistinguishable from natural water bodies.

  3. Streamlined Island

    NASA Technical Reports Server (NTRS)

    2003-01-01

    MGS MOC Release No. MOC2-514, 15 October 2003

    This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) picture shows a streamlined island in Marte Vallis, a large outflow channel system that crosses the 180oW meridian between the Elysium and Amazonis regions of Mars. The flow patterns on the floor of Marte Vallis might be the remains of lava flows or mud flows. Marte is the Spanish word for Mars. Most of the largest valleys on the red planet are named for 'Mars' in various languages. This island is located near 21.8oN, 175.3oW. The picture covers an area 3 km (1.9 mi) wide and is illuminated by sunlight from the lower left.

  4. Classifying Pacific islands

    NASA Astrophysics Data System (ADS)

    Nunn, Patrick D.; Kumar, Lalit; Eliot, Ian; McLean, Roger F.

    2016-12-01

    An earth-science-based classification of islands within the Pacific Basin resulted from the preparation of a database describing the location, area, and type of 1779 islands, where island type is determined as a function of the prevailing lithology and maximum elevation of each island, with an island defined as a discrete landmass composed of a contiguous land area ≥1 ha (0.01 km2) above mean high-water level. Reefs lacking islands and short-lived (<20 years) transient islands are not included. The principal aim of the classification is to assess the spatial diversity of the geologic and geomorphic attributes of Pacific islands. It is intended to be valid at a regional scale and based on two attributes: five types of lithology (volcanic, limestone, composite, continental, surficial) and a distinction between high and low islands. These attributes yielded eight island types: volcanic high and low islands; limestone high and low islands; composite high and low islands; reef (including all unconsolidated) islands; and continental islands. Most common are reef islands (36 %) and volcanic high islands (31 %), whereas the least common are composite low islands (1 %). Continental islands, 18 of the 1779 islands examined, are not included in maps showing the distribution of island attributes and types. Rationale for the spatial distributions of the various island attributes is drawn from the available literature and canvassed in the text. With exception of the few continental islands, the distribution of island types is broadly interpretable from the proximity of island-forming processes. It is anticipated the classification will become the basis for more focused investigation of spatial variability of the climate and ocean setting as well as the biological attributes of Pacific islands. It may also be used in spatial assessments of second-order phenomena associated with the islands, such as their vulnerability to various disasters, coastal erosion, or ocean pollution as

  5. Louisiana and the Southern Regional Education Board, December 2014

    ERIC Educational Resources Information Center

    Southern Regional Education Board (SREB), 2014

    2014-01-01

    This report details Louisiana's participation in Southern Regional Education Board (SREB) programs and services from December 2013 through November 2014. Appropriations from member states support SREB's core operations and general services. SREB leverages the long-standing commitment of member states to attract external funding for an array of…

  6. Fire Monitoring: Effects of Scorch in Louisiana's Pine Forests

    Treesearch

    James D. Haywood; Mary Anne Sword; Finis L. Harris

    2004-01-01

    Frequent growing-season burning is essential for restoring longleaf pine (Pinus palustris Mill.) plant communities to open parklike landscapes. However, fire can be a destructive force, reducing productivity and causing mortality among overstory longleaf pine trees. On two central Louisiana sites, severe crown scorch reduced longleaf pine diameter...

  7. Sediment metabolism on the Louisiana continental shelf - Eldridge

    EPA Science Inventory

    Rates of aerobic and anaerobic sediment metabolism were measured on the Louisiana Continental Shelf during 5 cruises in 2006 and 2007. On each cruise, 3-4 stations were occupied in regions of the shelf that experience summer bottom-water hypoxia. Net DIC, O2, N2, and nutrient f...

  8. Kids Count 1995 Data Book on Louisiana's Children.

    ERIC Educational Resources Information Center

    Agenda for Children, New Orleans, LA.

    This data book presents findings of the Kids Count project on current conditions faced by Louisiana children ages birth to 19 years of age. Data is presented in a table format by individual indicator for each of the parishes, and is further broken down by race. The first subject area addresses poverty and statistics on children receiving AFDC,…

  9. LOUISIANA ENVIRONMENTAL MODELING SYSTEM FOR HYPOXIA RELATED ISSUES

    EPA Science Inventory

    An environmental assessment tool to evaluate the impacts of nonpoint source (NPS) pollutants discharged from Mississippi River basins into the Gulf of Mexico and to assess their effects on receiving water quality will be described. This system (Louisiana Environmental Modeling S...

  10. NASA, Remote Sensing and Archaeology: An Example from Southeast Louisiana

    NASA Technical Reports Server (NTRS)

    Giardino, Marco J.

    2010-01-01

    NASA Stennis Space Center, located in Mississippi, USA, undertook an archaeological survey of the southeastern Louisiana marshes beginning in 2003. Progress on this activity was severely hampered by the 2005 hurricane season when both Katrina and Rita devastated the study area. In 2008, the NASA team reinitiated the analysis of the project data and that work continues today. The project was conducted initially in partnership with the U.S. Army, Corps of Engineers New Orleans District and Tulane University. NASA and its partners utilized a wide variety of satellite and airborne remote sensing instruments combined with field verification surveys to identify prehistoric archeological sites in the Southeastern Louisiana delta, both known and still undiscovered. The main approach was to carefully map known sites and use the spectral characteristics of these sites to locate high probability targets elsewhere in the region. The archaeological activities were conducted in support of Coast 2050 whose stated goals is to sustain and restore a coastal ecosystem that supports and protects the environment, economy and culture of southern Louisiana. As the Coast 2050 report states: [T]he rate of coastal land loss in Louisiana has reached catastrophic proportions. Within the last 50 years, land loss rates have exceeded 40 square miles per year, and in the 1990's the rate has been estimated to be between 25 and 35 square miles each year. This loss represents 80% of the coastal wetland loss in the entire continental United States.

  11. Selected Job Title Description for Nonfarm Agricultural Jobs in Louisiana.

    ERIC Educational Resources Information Center

    Mondart, C. L., Jr.; And Others

    Job information, presented for use by high school counselors, was derived from a statewide study of nonfarm agricultural occupations which revealed that 20,025 Louisiana workers in 1,699 job titles were doing work demanding some specialized training in agriculture. Information includes a description, employee qualifications, employment…

  12. Man in Louisiana's coastal zone - From reclamation to subsidence

    SciTech Connect

    Davis, D.W. )

    1990-09-01

    For more than 300 years the US marsh lands were thought to be of no economic value. They were considered useless wastelands. Today, they are recognized as valuable and highly productive environments. As a renewable resource that operates with minimum capital expenditures, the wetlands are epitomized in Louisiana. Even so, south Louisiana's first settlers were unaware of the wetlands value. These coastal lowlands were considered a nuisance. They bred yellow fever-carrying mosquitos and contributed directly and indirectly to flooding. Consequently, to overcome the hardships of being sea-level citizens, for more than 250 years the inhabitants have systematically reclaimed the marshes and swamps. As a result of the intense utilization of levees and pumps, normally wet property began to dry out, losing some of its natural buoyancy, increasing regional subsidence. Man-induced negative land surfaces are producing an urbanized population that must face the realities of subsidence caused by unregulated reclamation. New Orleans has, in fact, become North America's premier sinking city. The population has been forced to learn how to live with the problem. Nevertheless, these people are at risk, particularly if the current predicted sea-level rise of 1.2 mm/yr is correct. In the main, Louisiana's coastal issues will become those of the nation and represent the precursor of things to come. Louisiana's reaction and solutions to these issues will establish a precedent for the remainder of the country to follow.

  13. 77 FR 58903 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 6. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  14. 77 FR 55889 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 1. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  15. 77 FR 61650 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 8. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  16. 77 FR 56250 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-12

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 2. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  17. 77 FR 56908 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-14

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 3. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  18. 77 FR 61651 - Louisiana Disaster Number LA-00049

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00049 AGENCY: U.S. Small Business Administration. ACTION: Amendment 2. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for Public...

  19. 77 FR 64372 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-19

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 9. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  20. 77 FR 60002 - Louisiana Disaster Number LA-00049

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00049 AGENCY: U.S. Small Business Administration. ACTION: Amendment 1. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for Public...

  1. 77 FR 68882 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-16

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 11. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the...

  2. 77 FR 58903 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 5. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  3. 77 FR 56908 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-14

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 4. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the State...

  4. 77 FR 65044 - Louisiana Disaster Number LA-00048

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-24

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION Louisiana Disaster Number LA-00048 AGENCY: U.S. Small Business Administration. ACTION: Amendment 10. SUMMARY: This is an amendment of the Presidential declaration of a major disaster for the...

  5. 77 FR 55221 - Louisiana; Major Disaster and Related Determinations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ...: Acadia, Allen, Ascension, Assumption, Avoyelles, Cameron, East Baton Rouge, East Feliciana, Franklin... West Baton Rouge Parishes for debris removal and emergency protective measures (Categories A and B), including direct federal assistance, under the Public Assistance. All parishes within the State of Louisiana...

  6. The Louisiana Family Opportunity Act Medicaid Buy-in Program.

    PubMed

    Bachman, Sara S; Comeau, Meg; Dworetzky, Beth; Hamershock, Rose; Hirschi, Melissa

    2015-12-01

    The Family Opportunity Act Medicaid Buy-In Program (FOA) allows states to expand Medicaid coverage to children who meet selected disability and income eligibility criteria. FOA programs may help address family financial hardship as a result of underinsurance. We provide specific information about the FOA program and report the first results of a survey of parents or guardians of children with disabilities who were enrolled in Louisiana's FOA program. A convenience sample of families enrolled in the program (N = 52) responded to questions derived from the National Survey of Children with Special Health Care Needs (CSHCN). These results were compared to two groups of Louisiana families of CSHCN that had responded to the 2009/10 national survey. Data suggest that children enrolled in the Louisiana FOA are younger than those enrolled in Supplemental Security Income, are more likely to have functional losses, and, perhaps due to their age, are less likely to have difficulty with anxiety, depression, or behavior problems. FOA families are less likely than families in either group to report receiving help with care coordination, and more likely to report financial problems due to their child's health. Respondents were also more likely to report that they received all the therapy services and specialty care they needed. The FOA program thus appears to be filling a niche in coverage needs among families of children with disabilities in Louisiana.

  7. The Louisiana Slide Library; A Humanities Program. Bulletin 1755.

    ERIC Educational Resources Information Center

    Louisiana Council for Music and Performing Arts, New Orleans.

    The Louisiana Slide Library is an extensive collection of slides, lectures, and tapes designed for use in the arts, the humanities, social and ethnic studies, languages, home economics, careers, crafts, and special education. This bibliography lists these slide sets and indicates the grade level intended for each set and the number of slides in…

  8. Louisiana Teachers' Familiarity, Usefulness and Recommendation of Content Literacy Strategies

    ERIC Educational Resources Information Center

    Howe, Mary E.; Mundy, Marie-Anne; Kupczynski, Lori; Cummins, Carrice

    2012-01-01

    Research-based content reading strategies were infused in Louisiana's curriculum to improve students' comprehension. This change does not guarantee that teachers know what they are, use them, or recommend their use to colleagues. This study surveyed 381 teachers regarding their implementation, familiarity, usefulness and recommendation of the…

  9. National Environmental/Energy Workforce Assessment for Louisiana.

    ERIC Educational Resources Information Center

    National Field Research Center Inc., Iowa City, IA.

    This report presents existing workforce levels, training programs and career potentials and develops staffing level projections (1976-1982) based on available information for the State of Louisiana. The study concerns itself with the environmental pollution control areas of air, noise, potable water, pesticides, radiation, solid waste, wastewater,…

  10. Lessons for Louisiana from Florida's K-12 Education Revolution

    ERIC Educational Resources Information Center

    Ladner, Matthew

    2012-01-01

    Louisiana has emerged as one of the most fascinating states in the nation for education reform. The state's creative response to rebuilding the New Orleans education system in the wake of Hurricane Katrina is now considered a potential model for reformers across the nation. Governor Bobby Jindal has carried the reforms further in pushing for…

  11. Louisiana Opens Novel Marketplace of K-12 Courses

    ERIC Educational Resources Information Center

    Robelen, Erik W.

    2012-01-01

    Louisiana is gearing up to open a new front in its push to expand educational choice, essentially creating a marketplace that lets students shop around for publicly funded courses--both online and face-to-face--beyond their schoolhouse doors. More than 30 providers already have stepped forward seeking state approval to take part in the Course…

  12. Louisiana Opens Novel Marketplace of K-12 Courses

    ERIC Educational Resources Information Center

    Robelen, Erik W.

    2012-01-01

    Louisiana is gearing up to open a new front in its push to expand educational choice, essentially creating a marketplace that lets students shop around for publicly funded courses--both online and face-to-face--beyond their schoolhouse doors. More than 30 providers already have stepped forward seeking state approval to take part in the Course…

  13. Forest statistics for North Delta Louisiana parishes - 1991

    Treesearch

    James F. Rosson; Patrick E. Miller; John S. Vissage

    1991-01-01

    Tabulated results were derived from data obtained from a 1 991 continuous forest inventory of North Delta Louisiana parishes (fig. 1). Core tables (1 to 25) are compatible among Forest Inventory and Analysis units in the Eastern United States. Supplemental tables (26 to 43) provide information beyond that provided by the core tables. All comparisons between the 1991...

  14. We can! Louisiana: adapting the dietary guidelines for all Americans

    USDA-ARS?s Scientific Manuscript database

    The National Institutes of Health (NIH) We Can! (Ways to Enhance Children's Activity and Nutrition) was culturally tailored in order to increase adherence to the Dietary Guidelines for Americans (DGA), as the vehicle for preventing childhood overweight and obesity in Louisiana families. We Can! Loui...

  15. Early harvest affects sugarcane ratooning ability in Louisiana

    USDA-ARS?s Scientific Manuscript database

    The number of sugarcane processors in Louisiana has decreased over time forcing growers to begin the harvest season earlier for fear of complete cane loss at the end of the harvest period due to freezing temperatures during this period of late winter. Experiments were conducted to investigate effec...

  16. First record of Culex (Culex) coronator in Louisiana, USA.

    PubMed

    Debboun, Mustapha; Kuhr, Dennis D; Rueda, Leopoldo M; Pecor, James E

    2005-12-01

    The 1st confirmed record of Culex coronator for Louisiana was made at Fort Polk, LA, from carbon dioxide-baited light trap and gravid trap collections performed from April to October 2004. In addition to the new record, 17 mosquito species in 5 genera (Aedes, Anopheles, Coquillettidia, Culex, and Psorophora) were collected. Collection-site and species distribution data are included.

  17. Stream baiting in southern Louisiana for Phytophthora ramorum

    Treesearch

    Jason Preuette; Daniel Collins; Ashley Williams; Kenneth Deahl; Richard Jones

    2013-01-01

    The use of stream monitoring is an important method for early detection of Phytophthora ramorum. Five different waterway locations representing different ecosystems and potential P. ramorum inoculum sources across southern Louisiana were monitored for P. ramorum using bait bags containing whole ...

  18. The Use of the Computer in Louisiana Schools. Bulletin 1679.

    ERIC Educational Resources Information Center

    Louisiana State Dept. of Education, Baton Rouge. Office of Research and Development.

    In order to establish base line information on microcomputers and their use for K-12 schools in Louisiana, the State Department of Education measured the current status of the use of computers in the public schools of the state. Two different forms were used for the survey, one designed to collect information on the instructional use of the…

  19. Phytoplankton community composition in nearshore coastal waters of Louisiana

    EPA Science Inventory

    Phytoplankton community compositions within near-shore coastal and estuarine waters of Louisiana were characterized by relative abundance, biovolume, and taxonomic identification to genus and species when possible. The range of total nitrogen was 0.5 to 1.3 mg L-1 and total phos...

  20. Recommendations for Amylase Application in the 2008 Louisiana Grinding Season

    USDA-ARS?s Scientific Manuscript database

    Unfortunately, the application of amylase (an enzyme) to break down long chains of unwanted starch in U.S. sugarcane factories is still not optimized because of misinformation about which enzyme to use, and how to add the enzyme. Two large factory trials were conducted at a Louisiana factory to opti...