USGS EROS Archive – Land Cover – Annual NLCD Collection 1 Fractional Impervious Surface
The Annual National Land Cover Database (NLCD) Fractional Impervious Surface product provides the fractional or percent surface area of a 30-meter map pixel that is covered with processed materials or structures (pavement, concrete, rooftops, and other constructed materials) that generate surface runoff. The majority of these materials are impervious to water, but many features that are not impervious like lawns and channelized ditches also contribute to surface runoff and water impairment.
Annual NLCD Fractional Impervious Surface in the h04v01tile in the Northwest United States.
The amount of impervious surface is generally less than suggested by the footprint of developed land cover because these classes often include permeable but developed vegetation, such as lawn grasses, that may be the majority surface cover. The impervious surface product provides a value for every land cover pixel mapped as developed and determines which intensity category the pixel will be placed into based on thresholds described in the primary land cover class legend in the Science Product User Guide. The value ranges from 0-100% area.
Annual NLCD Collection 1 Product Suite products are processed to 30-meter resolution on an Albers Equal Area Conic (AEA) projection using the World Geodetic System 1984 (WGS84) datum. Annual NLCD products are created as raster images stored as GeoTIFFs with accompanying metadata. The products delivered via EarthExplorer (EE) are Tiled products processed to a common tiling scheme of uniform dimensions bounded by static corner points in a defined grid system. Each tile contains 5,000 x 5,000 30-meter pixels.
Additional Information
- Annual National Land Cover Database
- Annual NLCD Science Product User Guide
- Annual NLCD Reference and Validation
- Accuracy Assessment Publication
Access Data
EarthExplorer (EE) can be used to search, preview, and download Annual NLCD Land Cover dataset. The collection is available under the Land Cover > Annual NLCD Product Suite category. The data provided via EE are Tiled products.
Annual NLCD Collection 1 Product Suite are also distributed by the MRLC Web Viewer, the MRLC Mosaic Download website, ScienceBase, as Annual NLCD web services, and through USGS AWS S3 (Oregon us-west-2 region). Each distribution site provides its own unique options for the products and services they provide.
Product Digital Object Identifier (DOI)#
Citation
Annual NLCD Product Suite Citation Information
Annual NLCD has no restrictions on the use of science products. Annual NLCD does ask that if you use the data as part of a publication or presentation that use the following citation below; however, it is not a requirement to use the data.
U.S. Geological Survey (USGS), 2024, Annual NLCD Collection 1 Science Products: U.S. Geological Survey data release, https://doi.org/10.5066/P94UXNTS
The Annual National Land Cover Database (NLCD) Fractional Impervious Surface product provides the fractional or percent surface area of a 30-meter map pixel that is covered with processed materials or structures (pavement, concrete, rooftops, and other constructed materials) that generate surface runoff. The majority of these materials are impervious to water, but many features that are not impervious like lawns and channelized ditches also contribute to surface runoff and water impairment.
Annual NLCD Fractional Impervious Surface in the h04v01tile in the Northwest United States.
The amount of impervious surface is generally less than suggested by the footprint of developed land cover because these classes often include permeable but developed vegetation, such as lawn grasses, that may be the majority surface cover. The impervious surface product provides a value for every land cover pixel mapped as developed and determines which intensity category the pixel will be placed into based on thresholds described in the primary land cover class legend in the Science Product User Guide. The value ranges from 0-100% area.
Annual NLCD Collection 1 Product Suite products are processed to 30-meter resolution on an Albers Equal Area Conic (AEA) projection using the World Geodetic System 1984 (WGS84) datum. Annual NLCD products are created as raster images stored as GeoTIFFs with accompanying metadata. The products delivered via EarthExplorer (EE) are Tiled products processed to a common tiling scheme of uniform dimensions bounded by static corner points in a defined grid system. Each tile contains 5,000 x 5,000 30-meter pixels.
Additional Information
- Annual National Land Cover Database
- Annual NLCD Science Product User Guide
- Annual NLCD Reference and Validation
- Accuracy Assessment Publication
Access Data
EarthExplorer (EE) can be used to search, preview, and download Annual NLCD Land Cover dataset. The collection is available under the Land Cover > Annual NLCD Product Suite category. The data provided via EE are Tiled products.
Annual NLCD Collection 1 Product Suite are also distributed by the MRLC Web Viewer, the MRLC Mosaic Download website, ScienceBase, as Annual NLCD web services, and through USGS AWS S3 (Oregon us-west-2 region). Each distribution site provides its own unique options for the products and services they provide.
Product Digital Object Identifier (DOI)#
Citation
Annual NLCD Product Suite Citation Information
Annual NLCD has no restrictions on the use of science products. Annual NLCD does ask that if you use the data as part of a publication or presentation that use the following citation below; however, it is not a requirement to use the data.
U.S. Geological Survey (USGS), 2024, Annual NLCD Collection 1 Science Products: U.S. Geological Survey data release, https://doi.org/10.5066/P94UXNTS