[GRASSLIST:5150] Re: finding sinkholes
johannesbuehler at oderbruecke.de
Wed Dec 4 20:50:13 EST 2002
> It seems to me that the size of the sinkhole and the resolution of your
> dem would have a serious effect on what you could identify.
right, but for my purpose the quality of the data is good enough. perhaps
sinkhole is not the most felicitous word. I mean "Depressed areas".
> Valleys with
> internal drainages such as bolsons
by the way what are bolsons (my english dictionary does not include this
> should show up, but a true sinkhole
> such as you see in karst topography might be too small to register,
> depending on dem resolution. For bolsons, an hydrological analysis of
> drainage patterns for centripetal systems might work to isolate discrete
> closed basins.
i just need a simple operation/command like "find all depressed areas"
-- Johannes Buehler
__O Feldtstr. 45
=`\<, 14789 Greifswald
(=)/(=) johannesbuehler at oderbruecke.de
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