Compare two DEM rasters of the same are.

How do I display two DEM rasters of the same area and then compare them to visualize the differences? Any other suggestions for additional elevation analysis while doing this? Thanks!

Answers

  • bmg_bobbmg_bob Global Mapper Programmer Posts: 1,944
    Hello,

    After loading both DEM files, use Analysis | Combine/Compare Terrain Layers to visualize the difference.  GM will subtract one layer from the other, and produce a third grid of the differences.

    Cheers,
    Bob
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