I'm working in France.I thought the TanDEM-X was a free and open DEM but that does not seem to be the case.
According to a few websites, the most famous free DEMs seem to be ASTER GDEM, SRTM, X-SAR and EU-DEM. Their spatial resolutions appear to be equivalent to between 25 m and 30 m but what about the other parameters such as spatial accuracy, quality of modeling, etc.
Is it possible to determine which free DEM is the best one?
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According to a few websites, the most famous free DEMs seem to be ASTER GDEM, SRTM, X-SAR and EU-DEM. Their spatial resolutions appear to be equivalent to between 25 m and 30 m but what about the other parameters such as spatial accuracy, quality of modeling, etc.
Is it possible to determine which free DEM is the best one?
أكثر...