USGS Gap Analysis Project - Additional Data – Slope
Dates
Publication Date
2011-02-22
Start Date
1999-01-01
End Date
2007-01-01
Citation
USGS - Core Science Analytics, Synthesis, and Library - Gap Analysis Project, 20110222, USGS Gap Analysis Project - Additional Data – Slope: U.S. Geological Survey, https://doi.org/10.5066/F75D8QQF.
Summary
The slope dataset was derived from the National Elevation Dataset and resulted in a slope dataset that is of the same resolution as the 30 m land cover dataset. Slope was reported in degrees. Slope is defined as the ratio of the "rise" divided by the "run" between two points on a line, expressed in degrees. Slope was generated using ArcGIS Spatial Analyst, with the USGS National Elevation Dataset as input. For quality information regarding the National Elevation Dataset, see http://ned.usgs.gov/ These data cover the entire continental U.S. and are a continuous data layer. These raster data have a 30 m x 30 m cell resolution. This slope data set is considered official foundational data for the GAP species modeling process. The data [...]
Summary
The slope dataset was derived from the National Elevation Dataset and resulted in a slope dataset that is of the same resolution as the 30 m land cover dataset. Slope was reported in degrees. Slope is defined as the ratio of the "rise" divided by the "run" between two points on a line, expressed in degrees. Slope was generated using ArcGIS Spatial Analyst, with the USGS National Elevation Dataset as input. For quality information regarding the National Elevation Dataset, see http://ned.usgs.gov/ These data cover the entire continental U.S. and are a continuous data layer. These raster data have a 30 m x 30 m cell resolution. This slope data set is considered official foundational data for the GAP species modeling process. The data have been made available provisionally to enhance understanding and use of GAP species data.
Additional data, such as slope, are used in the GAP species modeling process. Slope range (measured in degrees) identified as usable habitat for species is used with this slope data to determine habitat suitability in a spatially explicit way.
