372 datasets found
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Federal
DS-777 Average Annual Irrigation Withdrawals, 2000 to 2009, in inches estimated from the Soil Water Balance (SWB) Model for the High Plains Aquifer in Parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
Department of the Interior —
The water-budget-components geodatabase contains selected data from maps in the, "Selected Approaches to Estimate Water-Budget Components of the High Plains, 1940... -
Federal
Digital map of specific yield for High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
Department of the Interior —
This digital data set consists of specific yield percentage contours and polygons for the High Plains aquifer in the central United States. The High Plains aquifer... -
Federal
Model grid and infiltration values for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
This digital data set defines the model grid and infiltration values simulated in the transient ground-water flow model of the Death Valley regional ground-water flow... -
Federal
Maryland Ground-Water Observation Well Network, 2001
Department of the Interior —
MDNET is a point coverage that represents the locations and names of a network of observation wells for the State of Maryland. Additional information on water... -
Federal
Digital data sets that describe aquifer characteristics of the Enid isolated terrace aquifer in northwestern Oklahoma
Department of the Interior —
This data set consists of digitized aquifer boundaries for the Enid isolated terrace aquifer in northwestern Oklahoma. The Enid isolated terrace aquifer covers... -
Federal
Locations, values, and uncertainties of hydraulic-head observations for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
This digital geospatial data set contains the locations, values, and uncertainties of hydraulic-head observations used in the calibration of the transient model of... -
Federal
National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 2001-2012
Department of the Interior —
This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in... -
Federal
Simulated potentiometric surface contours at end of simulation (1998) in model layer 16 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
These contours represent the simulated potentiometric surface at the end of simulation (1998) in model layer 16 of the Death Valley regional ground-water flow system... -
Federal
Net infiltration of the Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
Recharge in the Death Valley regional ground-water flow system (DVRFS) was estimated from net infiltration simulated by Hevesi and others (2003) using a deterministic... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for farm fertilizer (gwava-s_ffer)
Department of the Interior —
This data set represents the average annual nitrogen input from commercial fertilizer applied to agricultural lands, 1992-2001, in kilograms per hectare, in the... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in U.S. ground water used for drinking (simulation depth 50 meters) -- Input data set for sandstone and carbonate rocks (gwava-dw_sscb)
Department of the Interior —
This data set represents the presence or absence of sandstone and carbonate rock aquifers in the conterminous United States. The data set was used as an input data... -
Federal
Comma-delimited Text File of the Geoprobe Results Collected August, 2005 from the Nauset Marsh Area of Cape Cod, Massachusetts
Department of the Interior —
In order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean, geophysical surveys, geophysical probing, submarine groundwater... -
Federal
Surface altitudes of hydrogeologic units used in the hydrogeologic framework and transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
A digital three-dimensional (3D) hydrogeologic framework model (HFM) represents the geometry and extent of hydrogeologic units (HGUs) and major structures in the... -
Federal
Pumpage for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
This digital data set represents ground-water discharged from the Death Valley regional ground-water flow system (DVRFS) through pumped wells. Pumping from wells in... -
Federal
Polygons Representing Drainage Areas Upstream from Potential Streamflow-loss Zones in Lawrence County, SD
Department of the Interior —
This data set provides information for evaluation of streamflow loss as mechanism of transport of potential contaminants when assessing sensitivity of ground-water to... -
Federal
Study area boundary for the Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
This digital data set represents the Death Valley regional ground-water flow system (DVRFS) study area which encompasses approximately 100,000-square kilometers in... -
Federal
Digital data sets that describe aquifer characteristics of the alluvial and terrace deposits along the North Canadian River from Canton Lake to Lake Overholser in central Oklahoma
Department of the Interior —
This data set consists of digital polygons of a constant recharge value for the alluvial and terrace deposits along the North Canadian River from Canton Lake to Lake... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in U.S. ground water used for drinking (simulation depth 50 meters) -- Input data set for orchards/vineyards (gwava-dw_orvi)
Department of the Interior —
This data set represents the percent of orchards/vineyards land cover in the conterminous United States. The data set was used as an input data layer for a national... -
Federal
Digital data sets that describe aquifer characteristics of the Central Oklahoma aquifer in central Oklahoma
Department of the Interior —
This data set consists of digitized aquifer boundaries created for a previously published report about the Central Oklahoma aquifer in central Oklahoma. This area... -
Federal
Material-property zones used in the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California
Department of the Interior —
Zones in this data set represent spatially contiguous areas that influence ground-water flow in the Death Valley regional ground-water flow system (DVRFS), an...
372 datasets found