[GRASSLIST:3747] curvature map

[temiz]

hello

I want to create curvature map.
I created it in two ways.
. r.slope.aspect elevation=el  pcurv=cur0 or
. v.surf.rast ( I have cont topo map)

But I noticed that these two maps have different values at same
locations

Where may be the wrong ?

kind regards

Ahmet Temiz
TURKEY


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