Filters: partyWithName: U.S. Geological Survey - ScienceBase (X) > Categories: Data Release - Revised (X) > partyWithName: Lower Mississippi-Gulf Water Science Center (X)

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Digitized Maps of the Potentiometric Surface of the Sparta Aquifer in North-Central Louisiana, 1886 to 2012 (ver. 1.1, April 2021) The Sparta aquifer is a primary source of groundwater in north-central Louisiana with more than 60 million gallons of water per day being withdrawn in 2015, and public supply and Industry account for over 90 percent of the water-use demand from the Sparta aquifer (Collier, 2018). Concentrated withdrawals from the Sparta aquifer have caused regional water-level declines within the Sparta aquifer (McGee and Brantly, 2015). Widespread concern about the potential effects of declining water levels has brought forth many questions regarding the sustainability of the aquifer as well as continued saltwater intrusion. In cooperation with the Louisiana Department of Transportation and Development, the U.S. Geological Survey... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Kentucky, Louisiana, Memphis aquifer, Mississippi, All tags... Mississippi Embayment, Missouri, Sparta Aquifer, Sparta Sand, Tennessee, USGS Science Data Catalog (SDC), freshwater extent, groundwater, potentiometric surface, volume change, water-level, Fewer tags Summary of basin characteristics for National Hydrography Dataset, version 2 catchments in the southeastern United States, 1950 - 2010 This dataset provides numerical and categorical descriptions of 48 basin characteristics for 956 basins with observed streamflow information and 9,314 ungaged basins coinciding with 12-digit hydrologic unit code (HUC12) pour points that drain to the Gulf of Mexico. Characteristics are indexed by National Hydrography Dataset (NHD) version 2 COMID (integer that uniquely identifies each feature in the NHD) and U.S. Geological Survey (USGS) station number for streamflow-gaging station, where applicable. The variables represent mutable and immutable basin characteristics and are organized by characteristic type: physical (5), hydrologic (6), categorical (12), climate (6), landscape alteration (7), and land cover (12).... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Alabama, Arkansas, Basin characteristics, Florida, Georgia, All tags... Gulf Coast, Gulf Coast, Louisiana, Mississippi, RESTORE, Tennessee, Texas, USGS Science Data Catalog (SDC), United States, categorical, network optimization, reference hydrology, streamflow processes, Fewer tags Compilation of estuarine salinity data for sites used in RESTORE streamflow alteration assessments (ver. 2.0, June 2021) The presence of salinity in shallow waters influences living resources and habitats within Gulf of Mexico estuaries. The salinity gradient is widely recognized as foundational in maintaining biological diversity and productivity of estuaries. A clear understanding of the factors controlling salinity and its variability in estuarine surface waters is essential for proper stewardship and for sustaining ecological structure and function. Salinity data are collected by numerous Federal, State, and local agencies and universities as part of routine data-collection programs. The U.S. Geological Survey compiled salinity data from existing online databases – all water samples were collected in Gulf of Mexico estuaries.... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Estuaries, Salinity, USGS Science Data Catalog (SDC) Irrigated Acreage in Tennessee Counties, 1934 to 2017 (ver. 1.1, June 2022) Understanding the number of acres of farmland irrigated and the amount of water used for irrigation is central to water-resource planning and public decision making. The U.S. Geological Survey (USGS), in cooperation with the Tennessee Department of Environment and Conservation, Division of Water Resources (TDEC-DWR), compiled available 5-year, county-level data on irrigated acres in Tennessee from 1934 to 2017 from published reports by the U.S. Census Bureau and the U.S. Department of Agriculture. Other data published in this dataset are summary statistics for irrigated acreage in Tennessee from 1934-2017, the top counties with the largest number of irrigated acres for each reporting year, as well as a county-level... Categories: Data, Data Release - Revised; Tags: East Tennessee, Middle Tennessee, Tennessee, USGS Science Data Catalog (SDC), West Tennessee, All tags... agriculture, groundwater, irrigation, irrigation water use, water use, Fewer tags Data used in the creation of total phosphorus and total nitrogen SPARROW models for the state of Tennessee This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in Tennessee streams. These data support the publication containing the Tennessee SPARROW models results (Hoos and others, 2019) and include model input used in the South Atlantic-Gulf Drainages and Tennessee River Basin (SAGT) nutrient SPARROW models (Hoos and McMahon, 2009; Garcia and others, 2011) as well as model input for river basins in Tennessee not included in the domain of the published SAGT SPARROW models. Also included in this data release are model coefficients, the software required to execute the Tennessee SPARROW... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC) Reflectance spectra of agricultural field conditions supporting remote sensing evaluation of non-photosynthetic vegetation cover (ver. 1.1, November 2022) This data release contains spectra used to evaluate narrow-band shortwave infrared indices suitable for measurement of non-photosynthetic vegetation (NPV). The original data were collected using a proximal Analytical Spectral Devices (ASD) FieldSpecPro spectroradiometer, and are also provided in various states of processing, all of which is described in the manuscripts referenced below. Items 1-9 include spectra, items 10-12 include statistical descriptions of correlation goodness of fit between derived indices and fractional NPV cover, and item 13 contains estimated Landsat Next sensor radiometric properties. Item 14 includes spectra added to version 1.1 of this data release which correspond to a closely related... Categories: Data, Data Release - Revised; Tags: Beltsville, MD place #597069, USGS Science Data Catalog (SDC), crop residue, hyperspectral, remote sensing Supporting Data for Estimating Selected Low-Flow Frequency Statistics and Mean Annual Flow for Ungaged Locations on Streams in Alabama (ver. 1.1, November 2020) Streamflow data and statistics are vitally important for proper protection and management of both the water quality and water quantity of Alabama streams. Such data and statistics are available at U.S. Geological Survey streamflow-gaging stations, also referred to as streamgages or stations, but are often needed at ungaged stream locations. To address this need, the U.S. Geological Survey, in cooperation with numerous Alabama State agencies and organizations, developed regional regression equations for estimating selected low-flow frequency statistics and mean annual flow for ungaged locations in Alabama that are not substantially affected by tides, regulation, diversions, or other anthropogenic influences. This... Categories: Data, Data Release - Revised; Tags: Alabama, Hydrology, USGS Science Data Catalog (SDC), Water Resources, boundaries, All tags... ecosystems, environment, geoscientificInformation, geospatial datasets, hydrology, inlandWaters, precipitation (atmospheric), river systems, stream discharge, streamflow, watershed management, Fewer tags Bathymetry and Storage Capacity of Dierks Lake, Arkansas A bathymetric survey of Dierks Lake, Arkansas, was conducted in late June - early July 2018 by the Lower Mississippi-Gulf Water Science Center of the U.S. Geological Surveys using methodologies for sonar surveys similar to those described by Wilson and Richards (2006) and Richards and Huizinga (2018). Data from the bathymetric survey were combined with data from an aerial Light Detection And Ranging (LiDAR) survey conducted in 2016 by the National Resources Conservation Service (U.S. Geological Survey, 2017) to create a digital elevation model (DEM) of the extent of the flood pool of the lake and compute volume (storage capacity) of the lake at 1-foot increments in water surface elevation from 444-557 feet (ft)... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ADCP, AR, ASCII, Acoustic, Arkansas, All tags... Bathymetry and Elevation, DEM, Dierks Lake, Doppler, GNIS ID 75695, Howard County, LIDAR, USGS Science Data Catalog (SDC), Water Depth, XYZ, digital elevation models, digital terrain models, elevation, inlandWaters, limnology, sonar, terrain dataset, Fewer tags Ecological flow analyses results: streamflow characteristics, predicted fish responses, and ecological withdrawal thresholds for select stream sites within the Cumberland and Tennessee River basins Attention: minor changes to the title, citation, and attached files of this data release were made on 2/14/2020. See the attached file 'Revisions_2_14_2020.pdf' for details. Water management and conservation efforts can benefit from scientifically-derived guidelines for the permitting of water withdrawals that maintain the ecological health in streams while simultaneously maximizing water availability for industry, agriculture, drinking water, and waste treatment. Data contained within this data release builds upon the previous framework developed by Knight and others (2008, 2012, 2014, 2016) that established flow-ecology relationships in the Blue Ridge, Ridge and Valley, Interior Plateau, and Cumberland Plateau... Categories: Data, Data Release - Revised; Tags: USGS Science Data Catalog (SDC) Water withdrawal and consumption estimates for thermoelectric power plants in the United States, 2015 (ver. 1.2, August 2023) This dataset presents water withdrawal estimates, consumption estimates, and associated information for 1,122 water-using, utility scale thermoelectric power plants in the United States for 2015. The U.S. Geological Survey (USGS) developed models to estimate thermoelectric water use based on linked heat-and-water budgets, including thermodynamically plausible ranges of minimum and maximum withdrawal and consumption, to provide a consistent method for water-use estimation across the fleet of U.S. thermoelectric plants. Historically, thermoelectric water withdrawal and consumption has been estimated by the Department of Energy's Energy Information Administration (EIA) based on surveys of plant operator-reported data... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Energy Resources, USGS Science Data Catalog (SDC), Water Resources, consumptive water use, groundwater, All tags... hydrology, power generation water use, surface water, thermoelectric power generation water use, water availability, water budget, water supply and demand, water use, water withdrawal, water-energy nexus, Fewer tags Trend analysis results for sites used in RESTORE Streamflow alteration assessments Daily streamflow discharge data from 139 streamgages located on tributaries and streams flowing to the Gulf of Mexico were used to calculate mean monthly, mean seasonal, and decile values. Streamgages used to calculate trends required a minimum of 65 years of continuous daily streamflow data. These values were used to analyze trends in streamflow using the Mann-Kendall trend test in the R package entitled “Trends” and a new methodology created by Robert M. Hirsch known as a “Quantile-Kendall” plot. Data were analyzed based on water year using the Mann-Kendall trend test and by climate year using the Quantile-Kendall methodology to: (1) identify regions which are statistically similar for estimating streamflow characteristics;... Categories: Data, Data Release - Revised; Types: Map Service, OGC WMS Layer; Tags: Alabama, Florida, Gulf Coast, Gulf Coast, Gulf of Mexico, All tags... Louisiana, Mississippi, RESTORE, Southeastern United States, Texas, USGS Science Data Catalog (SDC), environmental flow, network optimization, reference hydrology, streamflow alteration, trend analysis, Fewer tags Regions and Tables for Mississippi Flood Frequency, Data through 2013 (ver. 3.0, April 2019) To improve flood-frequency estimates at rural streams in Mississippi, annual exceedance probability flows at gaged streams in Mississippi and regional-regression equations, used to estimate annual exceedance probability (AEP) flows for ungaged streams in Mississippi, were developed by using current geospatial data, additional statistical methods, and annual peak-flow data through the 2013 water year. The regional-regression equations were derived from statistical analyses of peak-flow data, basin characteristics associated with 281 streamgages, the generalized skew from Bulletin 17B (Interagency Advisory Committee on Water Data, 1982), and a newly developed study-specific skew for select four-digit hydrologic unit... Categories: Data, Data Release - Revised; Tags: Flood Frequency Mississippi, State of Mississippi, USGS Science Data Catalog (SDC) Geospatial data supporting assessments of streamflow alteration to support bay and estuary restoration in the Gulf States This geospatial dataset includes a one-point feature-class shapefile, one-polygon feature-class shapefile, and associated FGDC-compliant metadata to define 193 streamflow and 299 basin characteristics at 1,320 U.S. Geological Survey streamflow gaging stations. Sites included in the dataset either (1) drain to the Gulf of Mexico or (2) are adjacent to watersheds that flow to the Gulf of Mexico and are considered both physiographically similar and valuable for analysis. Drainage area to the sites varies from less than 1 to approximately 67,500 square miles. Data presented describe the streamflow regime (Rossman, 1990; Thompson and Archfield, 2014), climate (Daly and others, 2008), land use and land-use change (Sohl... Categories: Data Release - Revised; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC) Bathymetry and Storage Capacity of Gillham Lake, Arkansas (ver. 1.1, April 2020) A bathymetric survey of Gillham Lake, Arkansas, was conducted in late June 2018 by the Lower Mississippi-Gulf Water Science Center of the U.S. Geological Survey (USGS) using methodologies for sonar surveys like those described by Wilson and Richards (2006) and Richards and Huizinga (2018). Data from the bathymetric survey were combined with data from an aerial Light Detection And Ranging (LiDAR) survey conducted in 2016 by the National Resources Conservation Service (U.S. Geological Survey, 2017) to create a digital elevation model (DEM) of the extent of the flood pool of the lake and compute volume (storage capacity) of the lake at 1-foot increments in water surface elevation from 431-559 feet (ft) above the North... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ADCP, AR, ASCII, Acoustic, Arkansas, All tags... Bathymetry and Elevation, DEM, Doppler, GNIS ID 74845, GNIS ID 81042, Gillham Lake, Howard County, LIDAR, Sevier County, USGS Science Data Catalog (SDC), Water Depth, XYZ, digital elevation models, digital terrain models, elevation, inlandWaters, limnology, sonar, terrain dataset, Fewer tags