Digital Elevation Model and its sources

A Digital Elevation Model (DEM) is a 3D representation of a terrain's surface, created using elevation data points. DEMs are crucial in geoinformatics for analyzing topography, modeling landscapes, and supporting applications such as flood modeling, land-use planning, and transportation design. They represent elevation data in a raster format, where each pixel or cell holds the elevation value for a specific location __________ _____ __________ ___ _____ ________ ___ __________.
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