中国地理空间数据云 (Geospatial Data Cloud)
Use gscloud.cn to download SRTM 90m and ASTER GDEM tiles with China-focused coverage; a Chinese mobile number is required for registration but all data is free.
Format
GeoTIFF
Geometry
Raster DEM
Coverage
Global with emphasis on China and Asia
Resolution
90 m (SRTM) / 30 m (ASTER GDEM)
About this dataset
Free Chinese geospatial data portal offering SRTM, ASTER GDEM, MODIS, and Landsat data with China-focused coverage and simple registered-user downloads.
中国地理空间数据云 (gscloud.cn) provides free access to SRTM 90m, ASTER GDEM v3, and other global and China-region DEM datasets in GeoTIFF format. Registration with a Chinese mobile number is required, but data is free to download. The portal is hosted by the Chinese Academy of Sciences and is widely used for China-focused terrain analysis.
How to download
- 1 Register an account at gscloud.cn using a Chinese mobile number (中国手机号).
- 2 Log in and navigate to the dataset catalog (数据目录) to browse available DEM products.
- 3 Select SRTM 90m, ASTER GDEM, or another desired elevation dataset and choose your area of interest.
- 4 Click download (下载) to save the GeoTIFF tile to your local machine for GIS processing.
FAQ
Do I need a Chinese phone number to use gscloud.cn?
Yes. Registration requires a Chinese mobile number (中国手机号) for SMS verification. International phone numbers are not currently supported.
What DEM datasets are available on gscloud.cn?
The portal offers SRTM 90m (3 arc-second), ASTER GDEM v3 (30 m), and other elevation products with a focus on China and Asia coverage.
Is the data on gscloud.cn free?
Yes. All datasets are free to download after registration; there are no per-tile or per-dataset fees.