165 datasets found
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Federal
National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection
Department of the Interior —
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Major Sites of the National Pollutant Discharge Elimination System (NPDES)
Department of the Interior —
This tabular data set represents the number and density of major National Pollutant Discharge Elimination System (NPDES) sites, as defined by Environmental Protection... -
Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Annual Average Runoff (millimeters) from 1945 - 2015
Department of the Interior —
This tabular data set represents annual average runoff values (millimeters) described in Wolock and McCabe (2017), compiled for the NHDPlus version 2 data suite... -
Federal
Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Level 3 Ecoregions
Department of the Interior —
This data set represents the estimated area of level 3 ecological landscape regions (ecoregions), as defined by Omernik (1987), compiled for every catchment of... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Riparian National Land Cover Data for 2019 Versions for the Years 2001, 2004, 2006, 2008, 2011, 2013, 2016, and 2019
Department of the Interior —
This tabular data set represents the percent of land cover classes in the riparian zone from the 2019 edition of the National Land Cover databases for the years 2001,... -
Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Distribution of Phosphorus in Soil Horizons A and C and Geologic Mapping Units
Department of the Interior —
This tabular data set represents the estimated distribution of Phosphorus (P) in the soil A and C horizons, milligrams per kilogram compiled for two spatial... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Select Geochemical Characteristics Based on Olson Geology Types
Department of the Interior —
This tabular data set represents select geochemical characteristics based on Olson geology types in surface or near surface geology (Olson, 2014) compiled for two... -
Federal
Attributes for MRB_E2RF1 Catchments in Selected Major River Basins: Population Density, 2000
Department of the Interior —
This data set represents the average population density, in number of people per square kilometer multiplied by 10 for the year 2000, compiled for every MRB_E2RF1... -
Federal
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: NLCD 2001 Imperviousness
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 Rivers Basins in the Conterminous United States: Total Precipitation, 2002
Department of the Interior —
This tabular data set represents the catchment-average total precipitation in millimeters multiplied by 100 for 2002, compiled for every MRB_E2RF1 catchment of... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated 30 Year, 1971-2000, Mean Annual Watershed Rainfall and Runoff factor ("R factor" of Universal Soil Loss Equation)
Department of the Interior —
This data set represents the mean annual average for the Rainfall and Runoff factor ("R factor" of Universal Soil Loss Equation) for the period 1971-2000 compiled for... -
Federal
Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: NLCD 2001 Imperviousness
Department of the Interior —
This data set represents the mean percent impervious surface from the Imperviousness Layer of the National Land Cover Dataset 2001 (LaMotte and Wieczorek, 2010),... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: STATSGO2 Soil Characteristics, Hydrologic Groups
Department of the Interior —
This tabular data set represents the percentages of soils for each STATSGO2 Hydrologic Group compiled for two spatial components of the NHDPlus version 2 data suite... -
Federal
Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Hydrologic Landscape Regions
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 NHDPlus Catchments (Version 1.1) for the Conterminous United States: Average Annual Daily Maximum Temperature, 2002
Department of the Interior —
This data set represents the average monthly maximum 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: Bedrock Geology
Department of the Interior —
This tabular data set represents the area of bedrock geology types in square meters compiled for every catchment of MRB_E2RF1 catchments for Major River Basins (MRBs,... -
Federal
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Mean Annual R-factor, 1971-2000
Department of the Interior —
This tabular data set represents the average annual R-factor, rainfall-runoff erosivity measure, compiled for every MRB_E2RF1 catchment of selected Major River Basins... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Mean Julian Day of the Year of First Freeze, from 30 Years of Record (1961-1990)
Department of the Interior —
This tabular data set represents the mean Julian year day of the year of the first freeze, from 30 years of record (1961-1990) compiled for two spatial components of... -
Federal
Attributes for NHDplus Catchments (Version 1.1) for the Conterminous United States: Population Density, 2000
Department of the Interior —
This data set represents the average population density, in number of people per square kilometer multiplied by 10 for the year 2000, compiled for every catchment of... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated Percent Presence of the Soil Restrictive Layers on Agricultural Land
Department of the Interior —
This tabular data set represents the estimated percent presence of the soil restrictive layer on agricultural land compiled for two spatial components of the NHDPlus...
165 datasets found