[GRASS-user] Plateau / Flatbed detection

[Moskovitz, Bob]

According to the r.terraflow man page, tci is "topographic convergence index, defined as the logarithm of the ratio of flow accumulation and local slope".  Based on what I read about TPI, it does not appear to be the same.

> -----Original Message-----
> From: grass-user-bounces at lists.osgeo.org
> [mailto:grass-user-bounces at lists.osgeo.org]On Behalf Of Jonathan
> Greenberg
> Sent: Friday, May 16, 2008 3:51 PM
> Cc: grass
> Subject: Re: [GRASS-user] Plateau / Flatbed detection
> 
> 
> Actually, I think r.terraflow has that!  look for the TCI output!
> 
> --j
> 
> Moskovitz, Bob wrote:
> > It would be cool to see something like the Topographic 
> Position Index(TPI) in GRASS.  
> >
> > Details here:  
> http://www.jennessent.com/downloads/TPI-poster-TNC_18x22.pdf
> >
> >   
> >> -----Original Message-----
> >> From: grass-user-bounces at lists.osgeo.org
> >> [mailto:grass-user-bounces at lists.osgeo.org]On Behalf Of 
> >> Daniel Victoria
> >> Sent: Friday, May 16, 2008 12:48 PM
> >> To: grass
> >> Subject: [GRASS-user] Plateau / Flatbed detection
> >>
> >>
> >> Hi all,
> >>
> >> 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. Anyone knows if
> >> it's possible?
> >>
> >> Many thanks
> >> Daniel
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> >>
> >>     
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> >   
> 
> -- 
> Jonathan A. Greenberg, PhD
> Postdoctoral Scholar
> Center for Spatial Technologies and Remote Sensing (CSTARS)
> University of California, Davis
> One Shields Avenue
> The Barn, Room 250N
> Davis, CA 95616
> Cell: 415-794-5043
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> 
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