[GRASS-user] Selecting most appropriate r.resample.* module

I have a DEM with a 1 foot resolution and I want to re-sample it to a 10
foot resolution. Not knowing the mathematics of each option
(r.resamp.bspline, r.resamp.filter, r.resamp.interp, r.resamp.rst,
r.resamp.stats, r.resample) I am asking for advice on selecting one.

The overall elevation difference is about 600 feet. My brief review of the 6
modules leads me to think that r.resamp.rst might be best for my data, But,
that's only a SWAG.

Please advise,

Rich

On Tue, May 16, 2023 at 4:02 PM Rich Shepard <rshepard@appl-ecosys.com> wrote:

I have a DEM with a 1 foot resolution and I want to re-sample it to a 10
foot resolution.

To me this sounds like
https://grasswiki.osgeo.org/wiki/Interpolation#Resampling_of_raster_maps_to_coarser_resolution

"Resampling of raster maps to coarser resolution"
--> r.resamp.stats

Markus

On Tue, 16 May 2023, Markus Neteler wrote:

To me this sounds like
https://grasswiki.osgeo.org/wiki/Interpolation#Resampling_of_raster_maps_to_coarser_resolution

"Resampling of raster maps to coarser resolution"
--> r.resamp.stats

Markus,

Too me, too. The resulting cells were too coarse. Since the source DEM is 9
years old, the two years ago there was another landslide on part of the
site, the original resulution does nicely as a baseline.

Thanks,

Rich