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2015 calendar-year county-level estimates of actual evapotranspiration for the conterminous United States and Hawaii Actual evapotranspiration (ETa) values estimated for specified areas including 1) total county areas; 2) potentially irrigated areas within each county; and 3) mapped extents of irrigated lands within each county provided by some states. These ETa estimates were provided to the USGS National Water Use Science Project by the USGS Earth Resources Observation and Science (EROS) Center (Gabriel Senay and MacKenzie Friedrichs, written communication, 2/20/2017) and are based on 1-square kilometer resolution 2015 Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data analyzed through the operational Simplified Surface Energy Balance (SSEBop) model using methods of Senay and others (2013). Reference: Senay,... Categories: Data; Tags: Remote Sensing, USGS Science Data Catalog (SDC), United States county, Water Resources, evaporation, All tags... irrigation, transpiration, water use, Fewer tags Mississippi Alluvial Plain Extent The Mississippi Alluvial Plain (MAP) has become one of the most important agricultural regions in the US, and it relies heavily on a groundwater system that is poorly understood and shows signs of substantial change. The heavy use of the available groundwater resources has resulted in significant groundwater-level declines and reductions in base flow in streams within the MAP. These impacts are limiting well production and threatening future water-availability for the region. This product will help not only scientists in our center, but also at a national level. This product will also be part of a larger study encompassing the Mississippi Alluvial Plain region. The Mississippi Alluvial Plain extent was delineated... Tags: Arkansas, Arkansas River, Illinois, Kentucky, LMG, All tags... Louisiana, Lower Mississippi-Gulf Water Science, MAP, MAP, Mississippi, Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River, Mississippi River Delta, Mississippi Valley, Missouri, Tennessee, U.S. Geological Survey, U.S.Geological Survey, USGS, Water Availability and Use Science Program, aquifer system, groundwater availability project, groundwater modeling, hydrogeology, water availability project, Fewer tags Societal Water-Use Data Compilation and Refinement Societal water-use estimates were required for the other four components of the Coastal Carolinas focus area study. Estimates of water withdrawals related to the societal water use included categories of public supply, self-supplied domestic, industrial, thermoelectric power, irrigation for crops and golf courses, livestock, mining, and aquaculture. Estimates for wastewater returns to surface water bodies were also needed for the surface-water modeling component of the project. These estimates were derived from site-specific data when available or disaggregated from county level information previously published in the USGS series of national water-use reports. These reports were facilitated by the USGS National... Categories: Project Digital surfaces of the bottom altitude and thickness of the Mississippi River Valley alluvial aquifer and site data within the Mississippi Alluvial Plain project region Bottom altitudes of the Mississippi River Valley alluvial aquifer (MRVA) were compiled from interpretations of subsurface geophysical logs (log picks) at about 10,000 boreholes and wells located throughout the Mississippi Alluvial Plain (MAP) that were available from previous investigations. Five sources of the bottom altitude data are listed numerically in the Cross Reference section (below) and correspond with the Ref_code listed in the .shp dataset. Borehole geophysical data (log picks) were referenced (corrected) to the National Elevation Dataset (NED) 10-meter digital elevation model (DEM; https://nationalmap.gov/elevation.html). Log picks that required a DEM correction of less than 20 feet were retained for... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, Cross Validation, Crowley's Ridge, Geostatistics, All tags... Kriging, Louisiana, Lower Mississippi-Gulf Water Science, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Delta, Mississippi River Valley Alluvial Aquifer, Mississippi Valley, Missouri, Tennessee, USGS Science Data Catalog (SDC), Variogram modeling, hydrogeology, Fewer tags Estimated Use of Water for Coastal Carolinas Focus Area Study The Cape Fear and Pee Dee River Basins in North Carolina and South Carolina were chosen as a focus area study (FAS) for the U.S. Geological Survey (USGS) National Water Census (NWC) in 2016. The objective of the NWC is to place technical information and tools in the hands of stake holders so that they can make decisions on water availability. The USGS South Atlantic Water Science Center, comprised of North Carolina, South Carolina, and Georgia, conducted a 3-year study of water use and availability to provide information related to the competing societal and ecological water needs in the Southeastern Atlantic Coastal Basins of the Carolinas. The Coastal Carolinas study area includes the Pee Dee and Cape Fear River... Tags: Atlantic coastal plain, Cape Fear, Georgia, HUC8, North Carolina, All tags... Pee Dee, South Carolina, USGS Science Data Catalog (SDC), biota, ground-water, groundwater, hydrologic unit code, surface-water, wastewater return, water use, withdrawal, Fewer tags 2015 Georgia water-use information by county and water-use trends by water-planning region Water-withdrawal, water-use, and water-return information have been collected and compiled for each county in Georgia every 5 years since 1980 using data obtained from various Federal, State, private agencies, and on-line sources. For 2015, water use, water withdrawal, and water returns were estimated for each county in Georgia. Off-stream water use in 2015 is estimated for the categories of domestic use, commercial use, industrial use processing, mining use, irrigation use (subdivided into crop and golf course irrigation), livestock, aquaculture, and thermoelectric power cooling. Water-use trends from 1985-2015 have also been compiled for each water-planning region in Georgia. Categories: Data; Tags: Georgia, USGS Science Data Catalog (SDC), water, water use, water withdrawal Verified Irrigated Agricultural Lands for the United States, 2002–17 The spatial extents of verified irrigated lands were compiled from various federal and state sources across the nation and combined into a single Geographic Information System (GIS) geodatabase for the purpose of model training and validation. In cooperation with U.S. Geological Survey (USGS), researchers at the University of Wisconsin (UW) generated a nation-wide map of irrigated lands using remote-sensing techniques that will be incorporated into future irrigation water-use models. The verified spatial data varies in scope, accuracy, and time period represented, but in general represents GIS coverages (polygons) of agricultural land irrigated for at least some period during 2002–17. Data from 14 states were provided... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, California, Colorado, Evaportranspiration, Florida, All tags... Georgia, Idaho, Illinois, Irrigation water use, Mississippi, Montana, New Mexico, Texas, USGS Science Data Catalog (SDC), Utah, Washington, Water Resources, Wyoming, evaporation, inlandWaters, remote sensing, transpiration, Fewer tags Aquaculture and Irrigation Water Use Model (AIWUM) 2.0 input and output datasets Datasets are inputs and outputs of Aquaculture and Irrigation Water Use Model (AIWUM) 2.0. AIWUM 2.0 employs remote sensing data sets and machine learning utilizing Distributed Random Forests, an ensemble machine learning algorithm to estimate annual and monthly groundwater use for irrigation and aquaculture (2014–20) throughout this region at 1 km resolution, using annual pumping data from flowmeters in Mississippi and real-time flowmeters in Arkansas, Louisiana, Mississippi, Missouri, and Tennessee. Aquaculture and irrigation estimates contained in this data release are representative of groundwater withdrawal for six different categories: aquaculture, cotton, corn, rice, soybeans, and other crops. Model results... Categories: Data; Tags: AIWUM, Arkansas, Distributed Random Forests, Louisiana, Mississippi, All tags... Missouri, Tennessee, USGS Science Data Catalog (SDC), aquaculture, groundwater, irrigation, water use, Fewer tags Mississippi Alluvial Plain Extent, November 2017 The Mississippi Alluvial Plain (MAP) has become one of the most important agricultural regions in the US, and it relies heavily on a groundwater system that is poorly understood and shows signs of substantial change. The heavy use of the available groundwater resources has resulted in significant groundwater-level declines and reductions in base flow in streams within the MAP. These impacts are limiting well production and threatening future water-availability for the region. This product will help not only scientists in our center, but also at a national level. This product will also be part of a larger study encompassing the Mississippi Alluvial Plain region. The Mississippi Alluvial Plain extent was delineated... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, Illinois, Kentucky, LMG, All tags... Louisiana, Lower Mississippi-Gulf Water Science, MAP, MAP, Mississippi, Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River, Mississippi River Delta, Mississippi Valley, Missouri, Tennessee, U.S. Geological Survey, U.S.Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Availability and Use Science Program, aquifer system, groundwater availability project, groundwater modeling, hydrogeology, water availability project, Fewer tags 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 Estimated monthly water use for irrigation by 12-digit hydrologic unit in the conterminous United States for 2015 This data release contains the output of the Irrigation Water Use Estimation Disaggregation and Downscaling Model (IWUEDD) along with the scripts and data resources (IWUEDD_basic.zip) required to replicate the output results. The IWUEDD is used to estimate monthly irrigation withdrawals and consumptive use for each 12-digit hydrologic unit code (HUC 12) subwatershed in the conterminous United States. The HUC 12-level estimates are separated into groundwater (GW), surface water (SW), groundwater and surface water combined (TW), and consumptive use (CU). The IWUEDD developed monthly estimates by disaggregating and downscaling previously published annual county-level irrigation withdrawal and consumptive use data complied... Categories: Data; Tags: Science data and analytical tools, USGS Science Data Catalog (SDC), United States, Water, Water Resources, All tags... consumptive use, groundwater, irrigation, surface water (non-marine), water supply and demand, water use, Fewer tags South Atlantic Water Science Center The South Atlantic Water Science Center collects high-quality hydrologic data and conducts unbiased, scientifically sound research on Georgia's, North Carolina's, and South Carolina's water resources. We meet the needs of those who use our information—from the distribution, availability, and quality of water resources to topic-oriented research to address current hydrological issues. Tags: Georgia, North Carolina, South Carolina