I have downloaded SRTM DEM 30 m. However, when I displayed on ArcMap, I got a DEM raster with 0.0002777 cell size.

How can I solve this problem?

  • What is the CRS of the DEM?
    – Babel
    Dec 26, 2020 at 11:58
  • The coordinate system is GCS_WGS_1984
    – Imen BRINI
    Dec 26, 2020 at 12:11

1 Answer 1


As your DEM seems to be in a geographic CRS ( EPSG:4326 ; WGS84), the unit of measurement is in degrees, not in meters. So measurements of length do not make sense: your cellsize is 0.0002777 degrees.

Reproject your DEM to a projected CRS to have meters as measurement unit.


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