Oberaletschgletscher (Alps)

Located in the Swiss Alps (46°25’21”N 7°57’55”E), RGI60-11.01827.

The sources available are: ASTER, COPDEM30, COPDEM90, AW3D30, DEM3, SRTM, NASADEM, MAPZEN and TanDEM-X.


  • one of the (many) cases where TanDEM-X has data gaps and artefacts

  • NASADEM shows noticeable differences to SRTM in steeper (often unglaciated areas) which are also present in e.g. ASTER. But the flatter parts of the glacier are very similar.



Shaded relief




Scatter plots

These scatter plots are for the glacier area only.