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 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 -
The Office of Water Linked Data (OWLD) dataset stores EPA Water program information indexed to several National Hydrography Dataset frameworks. Indexing may be accomplished by catchment, reach or...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: August 01, 2026 at 03:30 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 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 data set represents the Nematicide use on agricultural land in kilograms per square kilometer, 2009 value compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2)...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 30, 2026 at 06:41 PM -
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 tabular data set contains information on historic housing densities for every 10 years from 1940-2010, 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 06:55 PM -
This tabular data set contains information on historic land use, compiled for two spatial components of the NHDPlus version 2.1 data suite (NHDPlusv2) for the conterminous United States; 1)...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 29, 2026 at 06:35 PM -
This tabular data set represents the mean base-flow index expressed as a percent, compiled for every catchment in NHDPlus for the conterminous United States. Base flow is the component of...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 01, 2026 at 07:08 PM -
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 the NHDPlus version 2 data...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 29, 2026 at 06:43 PM -
This tabular data set represents bedrock permeability classes compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 30, 2026 at 06:24 PM -
This tabular data set represents the percent of land cover classes from the 2006 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: 4 | Catalog Last Checked: August 29, 2026 at 06:28 PM -
This tabular data set contains decadal information on dams compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 30, 2026 at 05:56 PM -
This tabular data set represents the percent of physiographic provinces compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1)...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 30, 2026 at 06:29 PM -
This data set represents National Atmospheric Deposition Program (NADP) National Trends Network average of annual precipitation-weighted mean atmospheric deposition for seven select constituents...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 29, 2026 at 06:04 PM -
This tabular data set contains information on historic land use, compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1)...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 30, 2026 at 07:03 PM -
This tabular data set represents the mean value for infiltration-excess overland flow as estimated by the watershed model TOPMODEL, compiled for every catchment of NHDPlus for the conterminous...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 04:04 AM
