do resolution changes effectively average data ?

Malcolm Williamson malcolm at
Thu Jan 19 16:33:35 EST 1995

(lines deleted)
> > 
>  How about when importing? If I have a DEM with 30m res. and import it into a 100m 
> res. region, what is the methode GRASS uses to derive the value of the 100m cell?
>  Thanks-
> --
> Morris Trimmer
> University Computing
> Washington & Lee University
> mtrimmer at
> 703-463-8846

My *guess* is that m.dem.extract follows the same resampling rules as the rest
of GRASS, but I would check with the authors to find out for sure.

Malcolm D. Williamson - GIS Specialist           E-mail: malcolm at
Center for Advanced Spatial Technologies      Telephone: (501) 575-6159
Ozark Rm. 12                                        Fax: (501) 575-5218 
University of Arkansas              
Fayetteville, AR 72701

More information about the grass-user mailing list