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Digital Elevation Model (DEM) describes the physical and topographic information of earthпїЅs surface. Today, DEM produced by different methods is successfully utilized in many geospatial applications such as gravimetric geoid determination in geodesy, morphology analysis in geology, topographic map production in cartography etc. As known, every year, the new satellites are launched to space and provide the most current information about the earthпїЅs surface with different working principles and different image t...