A digital map of the elevation of an area on the earth. The data are either collected by a private party or purchased from an organization such as the U.S. Geological Survey (USGS) that has already ...
The “Apollo Zone” Digital Image Mosaic (DIM) and Digital Elevation Model (DEM) have just been released. These maps cover approx. 18% of the Lunar surface at a resolution of 1024 pixels per degree ...
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