Search datasets
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This data set represents the area of bedrock geology types in square meters compiled for every catchment of NHDPlus for the conterminous United States. The source data set is the "Geology of the...
Search relevance: 1.00 | Views last month: 19 | Catalog Last Checked: August 01, 2026 at 04:40 AM -
This tabular data set represents the mean annual natural groundwater recharge, in millimeters, compiled for every MRB_E2RF1catchment of selected Major River Basins (MRBs, Crawford and others,...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: August 01, 2026 at 06:09 AM -
This tabular data set represents the 30-year (1971-2000) catchment-average total annual precipitation in millimeters multiplied by 100 compiled for every MRB_E2RF1 catchment of selected Major...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: August 01, 2026 at 03:01 AM -
This data set represents the average contact time, in units of days, compiled for every catchment of NHDPlus for the conterminous United States. Contact time, as described in Wolock and others...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: August 31, 2026 at 06:28 PM -
This data set represents the average atmospheric (wet) deposition, in kilograms per square kilometer, of inorganic nitrogen for the year 2002 compiled for every catchment of NHDPlus for the...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: August 01, 2026 at 03:34 AM -
This tabular data set represents the mean base-flow index expressed as a percent, compiled for every catchment of MRB_E2RF1 catchments of Major River Basins (MRBs, Crawford and others, 2006)....
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 01, 2026 at 05:12 AM -
This data set represents the estimated area of level 3 ecological landscape regions (ecoregions), as defined by Omernik (1987), compiled for every catchment of NHDPlus for the conterminous...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: August 01, 2026 at 03:01 AM -
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the basal area of red alder trees within each incremental watershed delineated in the NHDPlus v2 dataset in the...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 31, 2026 at 06:05 PM -
This USGS data release consists of the synthetic stream network and associated catchments used to develop spatially referenced regressions on watershed attributes (SPARROW) model of...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 05:45 AM -
For State agencies and other water-resources managers, determining which waterbodies to allocate limited funds for protection and restoration while also maximizing cost benefit is challenging....
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: August 01, 2026 at 05:30 AM -
This high-level metadata data document will be supplemented with detailed regional metadata at a later date. The NHDPlusV2 is an integrated suite of application-ready geospatial data sets that...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 03, 2026 at 05:00 AM -
This tabular data set represents the percent of land cover classes from the 2001 National Land Cover Dataset compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 30, 2026 at 05:59 PM -
This tabular data set represents the average atmospheric (wet) deposition, in kilograms per square kilometer, of inorganic nitrogen for the year 2002 compiled for every catchment for MRB_E2RF1 of...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 01, 2026 at 06:05 PM -
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 catchment of selected Major...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 01, 2026 at 06:48 PM -
This tabular data set represents the mean value for infiltration-excess overland flow as estimated by the watershed model TOPMODEL, compiled for every MRB_E2RF1 catchment of the Major River...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 05:37 AM -
This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 04:19 AM -
This tabular data set represents the percent of land cover classes from the 2011 National Land Cover Dataset compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 29, 2026 at 06:47 PM -
This data release contains model code and input data for, and predictions from, both a dynamic stream dissolved solids and a static baseflow dissolved solids SPARROW (SPAtially Referenced...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 05:58 AM -
This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 04:57 AM -
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 catchment of Major River...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 01, 2026 at 06:30 PM
