[GRASS-user] Peak point extraction from DEM
Brad Douglas
rez at touchofmadness.com
Sun Jul 8 04:08:15 EDT 2007
On Sun, 2007-07-08 at 19:54 +1200, Hamish wrote:
> Amagine wrote:
> > Hello, I am trying to extract peak points from a digital elevation
> > map.
> >
> > I would like to be able to regulate the following parameters:
> >
> > Minimum height of peak
> > Minimum drop of surrounding peaks
> > Minimum radius from surrounding peaks
> > summit points
> > optional hierarchy...
> >
> > Are there any tools in GRASS that may be able to do such an
> > extraction?
>
> see wish about calculating topographic prominence:
> http://thread.gmane.org/gmane.comp.gis.grass.user/19166/focus=19173
>
> linked wikipedia article: "The underlying mathematical theory is called
> "Surface Network Modeling," and is closely related to Morse Theory."
>
> if there is any interested topogapher in the house...
This may also be of interest:
http://www.peaklist.org/theory/theory.html
--
73, de Brad KB8UYR/6 <rez touchofmadness com>
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