Filters: Contacts: Southeast Region: LMG-INVEST OPRS PROG (X) > partyWithName: Lower Mississippi-Gulf Water Science Center (X)

Filters Date Range Past year (3) Past month (1) Past week (1) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (1) Types Map Service (4) OGC WFS Layer (3) OGC WMS Layer (3) OGC WMS Service (3) ArcGIS REST Map Service (1) ArcGIS Service Definition (1) Downloadable (1) Contacts Southeast Region: LMG-INVEST OPRS PROG U.S. Geological Survey - ScienceBase Gina N Groseclose SOUTHEAST REGION: LMG-INVEST OPRS PROG Water Resources More... Categories Data (3) Tag Types Theme (4) Place (4) USGS Scientific Topic Keyword (3) Harvest Set (4) Tag Schemes USGS Thesaurus (4) USGS Thesaurus Groundwater (1) Geographic Names Information System (GNIS) (3) USGS Thesaurus Common geographic areas (1) none (1) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV

Hydraulic Conductivity and Transmissivity Estimates from Slug Tests in Wells Within the Mississippi Alluvial Plain, Arkansas and Mississippi, 2020 During the spring and summer of 2020, the U.S. Geological Survey, Lower Mississippi – Gulf Water Science Center, conducted single well slug tests on selected wells within the Mississippi Alluvial Plain in Arkansas and Mississippi to estimate hydraulic conductivity (K) and transmissivity (T) values for the aquifers in which the wells are screened. A total of 324 tests were conducted on 48 wells. The computer software AQTESOLV version 4.50.002 (HydroSOLVE, Inc., 2007) was used to interpret the slug test data to estimate K and T values. Mean estimates of K for the 44 wells screened in the Mississippi River Valley alluvial aquifer ranged from 3 to 401 feet per day (ft/day) and mean estimates of T ranged from 285 to... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: 500-Foot Sand Memphis Sand, 500-Foot Sand Memphis Sand, 500-foot Sand, Ar, Arkansas, All tags... Common geographic areas, Conductivity, Groundwataer, Groundwataer, Groundwater, Hydraulic Conductivity, Hydraulic Conductivity, Instantaneous change in head test, Instantaneous change in head test, Memphis Sand, Mississippi, Mississippi Alluvial plain, Mississippi River Valley alluvial aquifer, Mississippi River Valley alluvial aquifer, Mississippi embayment aquifer system, Mississippi embayment aquifer system, Slug Test, Slug Test, Sparta Sand, Sparta Sand, Transmissivity, Transmissivity, USGS Science Data Catalog (SDC), middle Claborne aquifer, middle Claiborne aquifer, middle Claiborne aquifer, Fewer tags Flood-frequency of rural, non-tidal streams in Louisiana and parts of Arkansas, Mississippi, and Texas, 1877-2016 The dataset includes flood-frequency data and related files for 211 streamgages operated by the U.S. Geological Survey (USGS) in Louisiana and parts of the surrounding states of Arkansas, Mississippi, and Texas as well as assembled explanatory variables (physical, climatic, and land-use characteristics of the basins). The data in this release were used in generalized least-squares (GLS ) regression analyses (Stedinger and Tasker, 1985) to generate equations used to predict annual exceedance probabilities (AEPs) at ungaged locations on streams in the study area (Ensminger and others, 2021). Flood-frequency analyses were conducted using annual peak-flow data from the 1877-2016 water years to estimate streamflows... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Hydrology, Louisiana, Mississippi, Ouachita River, All tags... Red River, Sabine River, Texas, USGS Science Data Catalog (SDC), Water Resources, basin characteristics, flood frequency, linear regression, weighted regression, Fewer tags Wetland elevation and soil characteristics across Bayou Sauvage National Wildlife Refuge (2020-2021) The recent completion of the US Army Corps of Engineers (USACE) Hurricane and Storm Damage Risk Reduction System (HSDRRS) for New Orleans has effectively blocked surface water exchange between Bayou Sauvage National Wildlife Refuge (BSNWR) and the surrounding Lake(s) Pontchartrain and Borgne and the Gulf of Mexico to which it was once connected. Monitoring changes in hydrology, water quality, bird habitat variability, and resident waterbird and nekton communities within BSNWR is important to the long-term sustainability of these aquatic resources for use by visitors and aquatic life in these habitats. In particular, landscape and hydrologic modifications from management and restoration projects in southeastern Louisiana... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Bayou Sauvage National Wildlife Refuge, Ecology, Hydrology, New Orleans, All tags... Soil Sciences, USGS Science Data Catalog (SDC), Water Quality, Wildlife Biology, bulk density, core analysis, elevation, soil organic matter, wetland ecosystems, Fewer tags Row crop and cover crop residue spectra from lab spectrometer and spaceborne PRISMA imagery, Maryland, USA.,2006; 2021-2022. U.S. Geological Survey Data Release. This data release contains reflectance spectra of residue (senesced vegetation) for common row crops (corn, soybean, winter wheat) as well as diverse cover crops (cereals, legumes, brassicas) collected in the laboratory using Analytical Spectral Devices (ASD) spectrophotometers (n = 296) and collected in the field using the Itialian Space Agency's spaceborne PRecursore IperSpettrale della Missione Applicativa (PRISMA) imaging spectrometer (n = 65). The data release also contains biochemical trait concentrations (nitrogen, nonstructural carbohydrates, holocellulose, and lignin) from physical samples used to evaluate biochemical trait mapping of cash crop and cover crop residue. Data collection occurred at the USDA-ARS... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Beltsville, MD place #597069, Ecology, Environmental Health, Land Use Change, Remote Sensing, All tags... Soil Sciences, USGS Science Data Catalog (SDC), crop residue, hyperspectral, remote sensing, Fewer tags