CGIAR-CSI SRTM (Void-Filled)
Download CGIAR-CSI void-filled SRTM 90m tiles for seamless global elevation without the gaps found in the original NASA SRTM archive.
Format
GeoTIFF
Geometry
Raster DEM
Coverage
Global land (60°N–56°S)
Resolution
90 meters (3 arc-second)
About this dataset
CGIAR Consortium for Spatial Information void-filled SRTM 90m DEM processed to eliminate no-data regions across global land areas.
The CGIAR-CSI SRTM dataset is a processed version of the NASA SRTM 90m DEM where original voids have been filled using interpolation and auxiliary DEM sources. It provides seamless global land coverage between 60°N and 56°S at 3 arc-second resolution and is distributed as 5° x 5° GeoTIFF tiles, making it more convenient for large-area mosaics than the original 1° tiles.
How to download
- 1 Open the CGIAR-CSI SRTM download portal and locate the 5° x 5° tile grid for your area.
- 2 Click on the relevant tile link to download the zipped GeoTIFF directly — no account is needed.
- 3 Extract the GeoTIFF from the downloaded ZIP file.
- 4 Load the void-filled DEM into QGIS or GDAL for analysis; note tiles are at 90m (3 arc-second) resolution.
FAQ
How is CGIAR-CSI SRTM different from the original NASA SRTM?
CGIAR-CSI SRTM applies interpolation and auxiliary DEM sources to fill the no-data voids present in the original NASA SRTM archive, providing a seamless surface suitable for hydrological and terrain modeling.
What tile size does CGIAR-CSI SRTM use?
Tiles are 5° x 5° in geographic coordinates (much larger than the 1° x 1° NASA tiles), which simplifies mosaicking for regional and continental analyses.