Wednesday, November 20, 2013

DEM




Source: http://www.satimagingcorp.com/svc/dem.html

DEM, is another acronym for Digital Elevation Models. These are able to show the elevation of areas over the bare earth. Similar to contour on the Isoline maps, the closer the lines are on the map, the more change that happens in those areas, meaning the more detailed the model will be. DEM can be used for several purposes. They can be used for 3D graphics and for making relief maps. It is important that these are very accurate maps.

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