Return to search results
💡 Advanced Search Tip
Search by organization or tag to find related datasets
The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: National Land Cover Database - Impervious Surfaces
This dataset represents data derived from the NLCD dataset and the National Hydrography Dataset version 2.1(NHDPlusV2) (see Data Sources for links to NHDPlusV2 data and NLCD). Attributes were calculated for every local NHDPlusV2 catchment and accumulated upstream catchments to provide watershed-level metrics for imperviousness values within the NLCD. This data set is derived from the NLCD Impervious Surfaces raster, which describes percent imperviousness (continuous data type). Values indicate the degree to which the area is composed of impervious anthropogenic materials (e.g., parking surfaces, roads, building roofs). This raster was produced based on a decision-tree classification of 2001, 2004, 2006, 2008, 2011, 2013, 2016, and 2019 Landsat satellite data. This dataset will include additional years as they become available.
Complete Metadata
| bureauCode |
[ "020:00" ] |
|---|---|
| dataQuality | true |
| describedBy | https://www.epa.gov/national-aquatic-resource-surveys/streamcat-metrics-and-definitions |
| describedByType | text/html |
| identifier | B68DABF6-7883-41B0-A6B2-8AFB5BB230F3 |
| issued | 2015-04-23 |
| landingPage | https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset |
| language |
[ "en-US" ] |
| programCode |
[ "020:072" ] |
| references |
[ "https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=B68DABF6-7883-41B0-A6B2-8AFB5BB230F3", "https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset#access-streamcat-data" ] |
| rights | public (Data asset is or could be made publicly available to all without restrictions) |
| spatial | -125.0,24.5,-66.5,49.5 |
| temporal | 2015/2030 |
| theme |
[ "environment" ] |
