These models typically cover Earth's landmasses from pole to pole (TanDEM-X) or between 60°N and 56°S latitudes (SRTM).
The "90m" refers to the pixel spacing at the equator. In geographic terms, this corresponds to 3 arc-seconds . Download (90M)
The SRTM 90m digital elevation database is primarily used for: 90 m water body map using multi-temporal Landsat images These models typically cover Earth's landmasses from pole
This is a widely used, "void-filled" version of the original NASA data. It has been processed to remove gaps caused by radar shadows or water bodies, making it more reliable for hydrological and topographical analysis. Download (90M)