[GRASSLIST:84] jumping moving window analysis

Martin Wegmann wegmann at biozentrum.uni-wuerzburg.de
Tue Mar 14 08:33:23 EST 2006


hello, 

I am stuck with a solution how to compute a kind of jumping moving window. 

We have a 1 Km DEM (gtopo30) and a 90 m DEM (SRTM) and would like to know how 
high the diversity of the srtm90 inside a gtopo30 pixel is. This could be 
achieved by a jumping moving window which is aligned to the gtopo30 but 
computes the diversity on the srtm90. The output would be a diversity map 
based on srtm90 but with a resolution of the gtopo30. 

r.le has an option called systematic continuous but writes the output into a 
file rather than creating a new map.

r.neighbors is not a solution because it computes the diversity for each pixel 
continuous and not un-continuous like we wish.  

any solutions or ideas are welcome, regards, Martin



-- 
Martin Wegmann

DLR - German Aerospace Center
German Remote Sensing Data Center
@
Dept.of Geography
Remote Sensing and Biodiversity Unit
&&
Dept. of Animal Ecology and Tropical Biology
University of Wuerzburg
Am Hubland
97074 Würzburg

phone: +49-(0)931 - 888 4797
mobile: +49-(0)175 2091725
fax:   +49-(0)931 - 888 4961
http://www.biota-africa.org
http://www.biogis.de




More information about the grass-user mailing list