[GRASS-user] wierd artifacts in DEM from seamless.usgs.gov

[Matthew Perry]

On 5/18/06, Dylan Beaudette <dylan.beaudette at gmail.com> wrote:
> downloaded a 1/3 arc-second (about 10m res) DEM from the seamless.usgs.gov
> site.
> projected the lat/lon raster to UTM via gdalwarp using the -tps option
> import into grass, and compute shaded relief... and it looks like crap:

I've never used the tps resampling with a DEM but I've had good luck
using bilinear resampling with gdalwarp ( the -rb option) .

-- 
Matt Perry
perrygeo at gmail.com
http://www.perrygeo.net