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WorldDEM Full Resolution
Description
Provides access to a worldwide, consistent, and high precision Digital Surface Model at 12 m resolution in GeoTIFF format. It is derived from the TerraSAR-X and TanDEM-X satellites. The data acquisition started in January 2011 and was completed by mid-2015. WorldDEM represents the surface of Earth including buildings, infrastructure and vegetation. This dataset includes hydrological corrections, i.e. flattened water bodies and consistent flow of rivers, as well as shore- and coastline editing.
Technical information
| Spatial resolution | 12 m |
| Vertical accuracy | 2 m relative / 2.5 m absolute |
| Image type | Radar |
| Acquisition mode | Bi-static InSAR StripMap mode |
| Geometric processing level | Correction of terrain artefacts, such as layover and shadow. Hydrological correction (editing of water bodies). |
| Data acquisition period | 2011 to 2015 |
| Spectral band | X-band |
| File format | GeoTIFF |
| Bit depth per pixel | 32-bit |
| NoData value | -32767 |
| Vertical unit | meters |
| Coordinate system | Horizontal: WGS84/EPSG:4326 Vertical: EGM2008/EPSG:3855 |
| Limitations | The AOI must be larger than 0.1 km2 |
| Volume discounts | For orders larger than 2,500 km2, please contact [email protected] for volume discounts. |
User registration process and data access
Due to regulations about this data set, a user registration and compliance process is required before access to the data is granted. Access can currently not be provided for individual users. Data usage requires additional partner approval.
Sensitive countries are excluded from downloading the full-resolution product (please contact [email protected] for a release request).
Further information
For more information, please refer to the WorldDEM Technical Product Specification.