| Note |
TanDEM-X 90m DEM is a product derived from the global Digital Elevation Model (DEM) with a 0.4arcsec (12m) posting, and has a reduced pixel spacing of 3 arcseconds (arsec), which corresponds to approximately 90m at the equator. It covers with 150 Mio sqkm all Earth’s landmasses from pole to pole.
The TanDEM-X 90m (3 arcsec) DEM is a product variant of the 12m (0.4 arcsec) DEM product in Version 1.0. As such it can happen that it can contain:
Processing artefacts and outliers; Noisy areas (e.g. water surfaces, steep slopes, dense vegetation) with at least partly unreliable height values; Not filtered, delineated or flattened Water surfaces (or other noisy surfaces); Voids or Invalid Data, areas with missing height values.
Resolution: 90m.
Vertical accuracy: <10 m linear error 90% (LE90). |