- Name: Copernicus DEM for NISAR v1.2 (EPSG 3031)
- Short description: Digital Elevation Model (DEM) for the NASA-ISRO NISAR mission, version 1.2, based on the Copernicus DEM 30-m (2023_1), referenced to the WGS84 ellipsoid and projected over the Antarctic Polar Stereographic coordinate system (EPSG 3031).
- DOI: 10.5067/NIDEM-1
- EPSG code: 3031
- Vertical reference level: WGS84 ellipsoid
- Version: 1.2
- Processing date: 2024-10-31
- Notes: This digital elevation model (DEM) was prepared at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration, using the Copernicus DEM 30-m COP-DEM_GLO-30-DGED/2023_1 model, provided by the European Space Agency (ESA). The Copernicus DEM 30-m was produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The organizations in charge of the NISAR mission or the Copernicus programme by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-30. Users, including those who redistribute, adapt, modify, or combine the data contained in this DEM, must comply with the terms of the Copernicus DEM 30-m License Agreement. For additional information, please refer to https://doi.org/10.5067/NIDEM-1 and https://doi.org/10.5270/ESA-c5d3d65.
- Source Data: Copernicus DEM 30-m GLO-30 (COP-DEM_GLO-30-DGED/2023_1). DOI: https://doi.org/10.5270/ESA-c5d3d65. © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.
- Copernicus DEM License: LICENSE_COP-DEM-GLO_DGED__2023_1_eula_F.pdf [Local Relative Path]. Available online at https://doi.org/10.5270/ESA-c5d3d65.
- Other Processing Information: The vertical reference level of all Copernicus DEM tiles was updated from the EGM2008 geoid to the WGS84 ellipsoid. Non-existing Copernicus DEM 30-m tiles (e.g., over ocean) were filled with the EGM2008 geoid model, resulting in a DEM with complete global coverage. This DEM is provided in the Antarctic Polar Stereographic (EPSG 3031) projection, covering areas south of -60 degrees, with a 20-m posting. A hierarchical VRT (Virtual Raster) structure was created to enable fast and unified access to the entire DEM. The top-level file, EPSG3031.vrt, points to a second level of VRT files, which subsequently reference the individual DEM tiles in the GeoTIFF format.