344 datasets found
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Federal
Geochemical and Geospatial Data for Per- and Polyfluoroalkyl Substances (PFAS) in Groundwater Used as a Source of Drinking Water in the Eastern United States recent views
Department of the Interior —
Concentrations of inorganic constituents, dissolved organic carbon (DOC), tritium, per- and polyfluoroalkyl substances (PFAS), volatile organic compounds (VOCs), and... -
Federal
Estimated Annual Agricultural Pesticide Use for Counties of the Conterminous United States, 2013-17 (ver. 2.0, May 2020) recent views
Department of the Interior —
This data release provides estimates of annual agricultural use of pesticide compounds in counties of the conterminous United States, for years 2013-17, compiled by... -
Federal
Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Hydrologic Landscape Regions recent views
Department of the Interior —
This data set represents the area of Hydrologic Landscape Regions (HLR) compiled for every catchment of NHDPlus for the conterminous United States. The source data... -
Federal
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: NLCD 2001 Imperviousness recent views
Department of the Interior —
This tabular data set represents the mean percent impervious surface from the Imperviousness Layer of the National Land Cover Dataset 2001, (LaMotte and Wieczorek,... -
Federal
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Normalized Atmospheric Deposition for 2002, Ammonium (NH4) recent views
Department of the Interior —
This tabular data set represents the average normalized (wet) deposition, in kilograms per square kilometer multiplied by 100, of ammonium (NH4) for the year 2002... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: PRISM 30 year (1971-2000) Monthly Average Temperature (degrees Celsius) recent views
Department of the Interior —
These tabular data sets represent mean 30 year (1971-2000) monthly temperature (degrees Celsius) data from 800 meter resolution PRISM for two spatial components of... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated Area of Agricultural Land Drained by Field Ditches, 1992 recent views
Department of the Interior —
This tabular data set represents the estimated percent area of agricultural land drained by field ditches for the year 1992 compiled for two spatial components of the... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Mean Day of the Year of Last Freeze, from 30 Years of Record (1961-1990) recent views
Department of the Interior —
This tabular data set represents the mean Julian year day of the year of the last freeze, from 30 years of record (1961-1990) compiled for two spatial components of... -
Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Herbicide Use on Agricultural Land in Kilograms per square Kilometer, 2009 recent views
Department of the Interior —
This data set represents the Herbicide use on agricultural land in kilograms per square kilometer, 2009 value compiled for two spatial components of the NHDPlus... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: NLCD 2006 Percent Imperviousness recent views
Department of the Interior —
This tabular data set represents NLCD 2006 percent imperviousness compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: 30 Year Average (1961-1990) of Maximum Monthly Number of Days of Measurable Precipitation recent views
Department of the Interior —
This tabular data set represents 30 year average (1961-1990) of maximum monthly number of days of measurable precipitation per month compiled for two spatial... -
Federal
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Nutrient Application (Phosphorus and Nitrogen) for Fertilizer and Manure Applied to Crops (Cropsplit), 2002 recent views
Department of the Interior —
This tabular data set represents the estimated amount of phosphorus and nitrogen fertilizers applied to selected crops for the year 2002, compiled for every MRB_E2RF1... -
Federal
Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Average Annual Daily Minimum Temperature, 2002 recent views
Department of the Interior —
This data set represents the average monthly minimum temperature in Celsius multiplied by 100 for 2002 compiled for every catchment of NHDPlus for the conterminous... -
Federal
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Surficial Geology recent views
Department of the Interior —
This tabular data set represents the area of surficial geology types in square meters compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs,... -
Federal
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: NLCD 2001 Land Use and Land Cover recent views
Department of the Interior —
This tabular data set represents the estimated area of land use and land cover from the National Land Cover Dataset 2001 (LaMotte, 2008), compiled for every MRB_E2RF1... -
Federal
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1 recent views
Department of the Interior —
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United... -
Federal
Drainage Basins Used for Assessing Trends in Concentration of Pesticides in Streams of the United States, 1992-2010 recent views
Department of the Interior —
This dataset consists of drainage basin boundaries for 212 U.S. Geological Survey (USGS) stream sites sampled in the National Water-Quality Assessment (NAWQA)... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Select Basin Characteristics recent views
Department of the Interior —
This tabular data set represents select basin characteristics compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous... -
Federal
Dry deposition of reduced nitrogen in the United States Pacific Northwest for 2002 recent views
Department of the Interior —
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of dry deposition of reduced nitrogen in the Pacific Northwest region... -
Federal
National Land Cover Database 2001 (NLCD01) Imperviousness Layer Tile 2, Northeast United States: IMPV01_2 recent views
Department of the Interior —
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into...
344 datasets found