Tuesday, April 15, 2014

DEM


A DEM (Digital Elevation Model) is a digital file consisting of terrain elevations for ground positions at regularly spaced horizontal intervals.  Also georeferenced, DEM's features are tied into coordinate systems, a datum, and a map projection.  DEM's may be used to generate three-dimensional images or colorized to
bring out relief.  The image above is a DEM of Bingham Canyon Copper Mine, Utah, United States. 

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