[GRASSLIST:6091] Re: resampling to fractional cover

[Markus Neteler]

On Wed, Mar 09, 2005 at 10:42:22PM +0100, Maciek Sieczka wrote:
> Jed
> 
> You could write a script which would reduce your resolution by a given 
> factor (g.region res=... -p) and r.resamp'led your map in a loop.

... and/or combine this with r.clump and r.neighbors (size parameter).

Markus
 
> Maciek
> 
> ----- Original Message ----- 
> From: "Jed O. Kaplan" <jed.kaplan at jrc.it>
> To: <GRASSLIST at baylor.edu>
> Sent: Wednesday, March 09, 2005 4:26 PM
> Subject: [GRASSLIST:6079] resampling to fractional cover
> 
> 
> >Hello,
> >
> >I am using GRASS 6.0 cvs on Mac OS 10.3.
> >
> >I have a very high-resolution raster map with category data.  I want to
> >make a series of coarse resolution raster maps from this base map that
> >contain the fraction of each coarse-resolution grid cell that is occupied
> >by a particular category in the fine-resolution base map.
> >
> >I have looked at r.average but don't really see how to approach this
> >problem (or even if it would be possible with GRASS).
> >
> >Any advice or examples would be much appreciated.
> >
> >Thanks for the help,
> >
> >Jed Kaplan
> >
> >
> >

-- 
Markus Neteler     <neteler itc it>       http://mpa.itc.it
ITC-irst -  Centro per la Ricerca Scientifica e Tecnologica
MPBA - Predictive Models for Biol. & Environ. Data Analysis
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