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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,...
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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
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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...
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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
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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.
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