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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 clay sediment (gwava-s_clay)

Organization: Department of the Interior
Updated: 20201117 | Harvested: September 15, 2025 at 08:45 PM

This data set represents the amount of clay sediment in the soil, in percent times 1000, in the conterminous United States. The data set was used as an input data layer for a national model to...

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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 cropland/pasture/fallow (gwava-s_crpa)

Organization: Department of the Interior
Updated: 20201117 | Harvested: August 25, 2025 at 08:48 PM

This data set represents the percent of cropland/pasture/fallow land cover in the conterminous United States. The data set was used as an input data layer for a national model to predict nitrate...

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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 glacial till (gwava-s_gtil)

Organization: Department of the Interior
Updated: 20201117 | Harvested: July 15, 2025 at 11:39 PM

This data set represents the presence or absence of poorly sorted glacial till east of the Rocky Mountains in the conterminous United States. The data set was used as an input data layer for a...

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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 wetlands (gwava-s_wetl)

Organization: Department of the Interior
Updated: 20201117 | Harvested: September 15, 2025 at 08:46 PM

This data set represents the percent of woody wetlands and emergent herbaceous wetlands land cover in the conterminous United States. The data set was used as an input data layer for a...

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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 population density (gwava-s_popd)

Organization: Department of the Interior
Updated: 20201117 | Harvested: July 16, 2025 at 12:49 AM

This data set represents 1990 block group population density, in people per square kilometer, in the conterminous United States. The data set was used as an input data layer for a national model...

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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 water input (gwava-s_wtin)

Organization: Department of the Interior
Updated: 20201117 | Harvested: September 15, 2025 at 08:41 PM

This data set represents "water input," the ratio of the total area of irrigated land to precipitation, in square kilometers per centimeter, in the conterminous United States. The data set was...

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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 orchards/vineyards (gwava-s_orvi)

Organization: Department of the Interior
Updated: 20201117 | Harvested: September 15, 2025 at 08:38 PM

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 model to predict nitrate...

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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 irrigation tailwater recovery (gwava-s_twre)

Organization: Department of the Interior
Updated: 20201117 | Harvested: August 25, 2025 at 08:37 PM

This data set represents the area of National Resources Inventory irrigation system, tailwater recovery conservation practice, in square kilometers, in the conterminous United States. The data set...

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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 fresh surface water withdrawal (gwava-s_swus)

Organization: Department of the Interior
Updated: 20201117 | Harvested: September 28, 2025 at 04:50 AM

This data set represents the amount of fresh surface water withdrawal for irrigation, in megaliters per day, in the conterminous United States. The data set was used as an input data layer for a...

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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 drainage ditch (gwava-s_ddit)

Organization: Department of the Interior
Updated: 20201117 | Harvested: August 25, 2025 at 08:38 PM

This data set represents the area of National Resources Inventory surface drainage, field ditch conservation practice, in square kilometers, in the conterminous United States. The data set was...

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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 histosols (gwava-s_hist)

Organization: Department of the Interior
Updated: 20201117 | Harvested: August 25, 2025 at 08:44 PM

This data set represents the amount of histosols soil taxonomic order, in percent, in the conterminous United States. The data set was used as an input data layer for a national model to...

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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 carbonate rocks (gwava-s_crox)

Organization: Department of the Interior
Updated: 20201117 | Harvested: July 15, 2025 at 11:42 PM

This data set represents the presence or absence of Valley and Ridge carbonate rocks in the conterminous United States. The data set was used as an input data layer for a national model to predict...

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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 basalt and volcanic rocks (gwava-s_vrox)

Organization: Department of the Interior
Updated: 20201117 | Harvested: August 25, 2025 at 08:29 PM

This data set represents the presence or absence of basalt and volcanic rocks in the conterminous United States. The data set was used as an input data layer for a national model to predict...

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SolarCalc 1.0

Organization: Department of Agriculture
Updated: 2024-02-13 | Harvested: June 24, 2025 at 07:04 PM

<p>Solar Calc: Estimating Hourly Incoming Solar Radiation from Limited Meteorological Data</p> <p>Two major properties which determine weed seed germination are soil temperature and moisture...

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2011 Totten Reservoir Bathymetric Contours

Organization: Department of the Interior
Updated: 20201117 | Harvested: August 25, 2025 at 08:25 PM

The U.S. Geological Survey performed a bathymetric survey of Totten Reservoir using a man-operated boat-mounted multibeam echo sounder integrated with a global positioning system (GPS) and a...

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Voter Registration by Census Tract

Organization: King County, Washington
Updated: 2021-09-22 | Harvested: June 27, 2025 at 01:24 PM

This web map displays data from the voter registration database as the percent of registered voters by census tract in King County, Washington. The data for this web map is compiled from King...

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ACE Solar Wind Ion Composition Spectrometer (SWICS) Solar Wind Plasma Elemental and Isotopic Density, Speed, Thermal Speed, Charge State, and Ratio Parameters, Level 2 (L2), 2 h Data

Organization: National Aeronautics and Space Administration
Updated: 2025-09-10 | Harvested: October 13, 2025 at 06:30 PM

This ACE SWICS/SWIMS Data Set contains the Alpha Particle Number Density, He/O, C/O, Ne/O, Mg/O, Si/O, Fe/O Abundance Ratios, C, O, Mg, Si, Fe Average Charge States, C+6/C+4, C+6/C+5, O+7/O+6...

ACE Solar Wind Ion Composition Spectrometer (SWICS) Solar Wind Plasma Elemental and Isotopic Density, Speed, Thermal Speed, Charge State, and Ratio Parameters, Level 2 (L2), Daily Data

Organization: National Aeronautics and Space Administration
Updated: 2025-09-10 | Harvested: September 14, 2025 at 07:26 AM

This ACE SWICS/SWIMS Data Set contains the He/O, C/O, N/O, Ne/O, Mg/O, Si/O, S/O, Fe/O Abundance Ratios, C, O, Mg, Si, Fe Average Charge States, C+6/C+4, C+6/C+5, O+7/O+6 Charge State Ratios,...

2011 Groundhog Reservoir Bathymetric Contours

Organization: Department of the Interior
Updated: 20201117 | Harvested: July 15, 2025 at 11:48 PM

The U.S. Geological Survey performed a bathymetric survey of Groundhog Reservoir using a man-operated boat-mounted multibeam echo sounder integrated with a global positioning system (GPS) and a...

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ACE Solar Wind Ion Composition Spectrometer (SWICS) Solar Wind Plasma Elemental and Isotopic Density, Speed, Thermal Speed, Charge State, and Ratio Parameters, Level 2 (L2), 1 h Data

Organization: National Aeronautics and Space Administration
Updated: 2025-09-10 | Harvested: October 16, 2025 at 06:36 PM

This ACE SWICS/SWIMS Data Set contains the Alpha Particle Number Density, Fe/O Abundance Ratio, C, O, Mg, Si, Fe Average Charge States, C+6/C+4, C+6/C+5, O+7/O+6 Charge State Ratios, He+2, C+5,...

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