[GRASS-user] Generating curvature map

[Vaclav Petras]

On Tue, Jun 30, 2015 at 2:20 PM, Ahmet Temiz <ahmettemiz88 at gmail.com> wrote:

> I was wondering if it was possible to generate curvature map
> from DEM which is in LL wgs 84.
>
> Or
> Should I transform dem another projection?
>

Hi,

r.slope.aspect manual doesn't say that it is not technically possible, but
certainly you should use a projected coordinate system. All raster
operations should be done in projected coordinate system, not LL.

Vaclav

http://grass.osgeo.org/grass70/manuals/r.slope.aspect.html
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