After the DEM creation, I wanted to create slope layer.

However, the result has not satisfied me. I don't think the slope map is correct. Have you ever encountered false calculated terrain map?

This is the DEM:


And this is the slope layer.



1 Answer 1


As mentioned in comments by user30184 and GerardoJimenez this is due to the horizontal coordinates x and y having a different unit of measurement from the elevation coordinate z.

For example, having latitude and longitude in degrees and elevation in meters.

So either:

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