LANDFIRE 2020 Slope Degrees (SlpD) CONUS
In late 2021 the LANDFIRE (LF) team responded to feedback and created new topographic products (Elevation, Slope, and Aspect) for the Conterminous US, Alaska, Hawaii, and Puerto Rico and the Virgin Islands to release in early 2022. After the LF 2020 Elevation product was projected to Albers (see Elevation metadata abstract), slope (both degree and percent rise) was calculated using the geodesic option in ArcGIS Desktop 10.6.1 (ArcGIS). A persistent processing artifact consisting of numerous, obviously errant pixel values along the boundary of UTM Zones 15 and 16 was rectified by filling an approximately 15km wide swath with slope values calculated for Elevation in the UTM projection using the planar option in ArcGIS. The file was then converted to unsigned 16-bit using the Copy Raster tool in ArcGIS and clipped to the LF boundary using the Extract by Mask tool in ArcGIS. For Slope percent rise, percent slope values above 400 were reclassified to 400. Several NoData areas were assigned value zero (0) that overlap the LF data extent which includes a 3 nautical mile buffer along coastal areas. Otherwise, 65535 indicates NoData.
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Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey", "@type": "vcard:Contact", "hasEmail": "mailto:helpdesk@landfire.gov" } |
| description | In late 2021 the LANDFIRE (LF) team responded to feedback and created new topographic products (Elevation, Slope, and Aspect) for the Conterminous US, Alaska, Hawaii, and Puerto Rico and the Virgin Islands to release in early 2022. After the LF 2020 Elevation product was projected to Albers (see Elevation metadata abstract), slope (both degree and percent rise) was calculated using the geodesic option in ArcGIS Desktop 10.6.1 (ArcGIS). A persistent processing artifact consisting of numerous, obviously errant pixel values along the boundary of UTM Zones 15 and 16 was rectified by filling an approximately 15km wide swath with slope values calculated for Elevation in the UTM projection using the planar option in ArcGIS. The file was then converted to unsigned 16-bit using the Copy Raster tool in ArcGIS and clipped to the LF boundary using the Extract by Mask tool in ArcGIS. For Slope percent rise, percent slope values above 400 were reclassified to 400. Several NoData areas were assigned value zero (0) that overlap the LF data extent which includes a 3 nautical mile buffer along coastal areas. Otherwise, 65535 indicates NoData. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P1LJEZ3G", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6a1606d3b66b013d45990bac.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6a1606d3b66b013d45990bac |
| keyword |
[ "CONUS", "Conterminous United States", "Continental U.S.", "LANDFIRE 2020", "Slope", "U.S. Geological Survey (USGS)", "US", "USGS:6a1606d3b66b013d45990bac", "United States", "biota", "fires", "geographic information systems", "geospatial datasets", "hazard preparedness", "image collections", "raster digital data", "remote sensing", "topo", "topography" ] |
| modified | 2026-07-23T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -127.9878, 22.7654, -65.2544, 51.6497 |
| theme |
[ "geospatial" ] |
| title | LANDFIRE 2020 Slope Degrees (SlpD) CONUS |
