A more recent global product from the German Aerospace Center (DLR), which offers higher vertical accuracy (often around 1 meter) compared to the older SRTM standards.
The most prominent "90m" downloads are available through these major scientific repositories: Download (90M)
A specialized hydrographic dataset derived from 90m DEMs that maps global river networks, basins, and streamflow with high precision. Key Technical Specifications A more recent global product from the German
Downloads are standardly provided in GeoTIFF or ArcInfo ASCII formats, allowing for easy integration into software like ArcGIS or QGIS. Common Applications Download (90M)
The "90m" refers to the pixel spacing at the equator. In geographic terms, this corresponds to 3 arc-seconds .
The SRTM 90m digital elevation database is primarily used for: 90 m water body map using multi-temporal Landsat images