[GRASS-user] Peak point extraction from DEM

[Brad Douglas]

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>