USGS Gap Analysis Project Additional Data: Aspect
October 1, 2018
Aspect is the compass direction toward which a slope faces, measured in degrees from North in a clockwise direction from 0 to 360. Aspect was generated using ArcGIS Spatial Analyst, with the USGS National Elevation Dataset as input. For quality information regarding the National Elevation Dataset, see http://nationalmap.gov/elevation.html. 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. The USGS Gap Analysis Project (GAP) used the best information available to create the aspect data; however GAP seeks to improve and update these data as new information becomes available.
Citation Information
Publication Year | 2018 |
---|---|
Title | USGS Gap Analysis Project Additional Data: Aspect |
DOI | 10.5066/F7FT8JXP |
Authors | Matthew J Rubino |
Product Type | Data Release |
Record Source | USGS Digital Object Identifier Catalog |
USGS Organization | Science Analytics and Synthesis Program |
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