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Modified Copernicus Digital Elevation Models (DEMs) provide global 30-meter resolution elevation data. The Jet Propulsion Laboratory created this collection by updating the vertical reference to WGS84 and filling ocean gaps for complete global coverage, specifically for the NASA-ISRO Synthetic Aperture Radar (NISAR) mission. It is based on the Copernicus DEM 30-m COP-DEM_GLO-30-DGED/2023_1 model from the European Space Agency.
Users must comply with the terms of the Copernicus DEM 30-m License Agreement. Data is accessed via a Virtual Raster (VRT) structure, requiring compatible geospatial software (e.g., GDAL).