[GRASS-user] Plateau / Flatbed detection
hamish_b at yahoo.com
Fri May 16 20:35:48 EDT 2008
> > Has anybody done or heard off a plateau (flatbed) detection? I'm
> > trying to automatically detect these features (Brazilian chapadas -
> > http://en.wikipedia.org/wiki/Chapada ) using SRTM.
Jonathan Greenberg replied:
> Would a basic topographic analysis suffice, e.g. if the
> slope is < 5 degrees = flatbed?
maybe also use one of the imagery clumping/clustering tools to find wide areas of small slope. or r.slope.aspect + r.mapcalc + r.reclass + r.to.vect + v.clean remove small areas + v.to.rast ...
> You can also do topographic feature
I grass topographic feature classification is a little hidden. use:
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