What is Digital Elevation Model or DEM?

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A Digital Elevation Model, or DEM, is a 3D representation of a topographic surface of the Earth, excluding trees, buildings, and any other surface objects. It provides accurate and detailed information about the terrain, which can be used to make better-informed decisions.
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How to prepare geospatial maps illustrating local information, for example schools,
sanitary provisions, hospitals and tube wells etc

malaumermujahid
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