Hello GRASS community,<div><br></div><div>I am having trouble filling the null areas in the SRTM (3 second resolution) DEM for Southeast Asia. I think the reason is because the region I am trying fill is too large. The region is almost a billion cells - see g.region -p output below - but about 40% of that region is ocean areas with no DEM data. I'm wondering if maybe the problem is that r.fillnulls is trying to fill the ocean areas. </div>
<div><br></div><div>r.fillnulls gets to the point where it says "Building areas..." then it says "Killed" and prints an error message. </div><div><br></div><div>I am using GRASS 6.4.1. Eventually I plan on using the null-filled DEM to delineate the watersheds in Southeast Asia. </div>
<div><br></div><div>Anybody know what I'm doing wrong? </div><div><br></div><div>Thanks,</div><div>Nick<br><div><div><div><br></div><div><b>output from r.fillnulls:</b></div><div><div>Locating and isolating NULL areas...</div>
<div> 100%</div><div>Reading input raster map <r_fillnulls_11665@PERMANENT>...</div><div> 100%</div><div>Finding buffer zones...</div><div> 100%</div><div>Writing output raster map <r_fillnulls_11665.buf>...</div>
<div> 100%</div><div> 100%</div><div>Creating interpolation points...</div><div>Extracting points...</div><div> 100%</div><div>Building topology for vector map <vecttmp_fillnulls_11665>...</div><div>Registering primitives...</div>
<div>14602532 primitives registered</div><div>14602532 vertices registered</div><div>Building areas...</div><div>Killed</div><div>ERROR: /usr/lib/grass64/scripts/r.fillnulls abandoned. Removing temporary</div><div> maps, restoring user mask if needed:</div>
<div>Removing raster <MASK></div><div>Removing raster <r_fillnulls_11665></div><div>Removing raster <r_fillnulls_11665.buf></div><div>Removing raster <r_fillnulls_11665_filled></div></div><div><br>
</div><div><br></div><div><div>GRASS 6.4.1 (seasia_ll):/media/little/projects/seasia > g.region -p</div><div>projection: 3 (Latitude-Longitude)</div><div>zone: 0</div><div>datum: wgs84</div><div>ellipsoid: wgs84</div>
<div>north: 31:00:01.5N</div><div>south: 0:58:31.5N</div><div>west: 88:59:58.5E</div><div>east: 112:00:01.5E</div><div>nsres: 0:00:03</div><div>ewres: 0:00:03</div><div>rows: 36030</div>
<div>cols: 27601</div><div>cells: 994464030</div></div><div><br></div></div></div></div>