Hi, Maybe some one could kindly advise what I'm doing wrong here.
Previously I successfully used r.hazard.flood to generate flood and mti layers. However, now I'm encountering the following error with two other different DEM layers. The error appears to be related to memory, but there is plenty of RAM free (6GB) and I still get the error with a DEM subset of only 5MB in size. Also, I'm able to repeat the r.hazard.flood process successfully using the first DEM I tried, so it would seem to be related to the DEMs? I've set g.region - selecting the raster file to be used with r.hazard.flood and resolution (in meters). Thanks for your suggestions, Richard r.hazard.flood.py map=ASTGTM_composite_all_de@PERMANENT flood=ASTGTM_composite_all_delta_flood mti=ASTGTM_composite_all_delta_mti Cellsize : 30.0 SECTION 1a (of 4): Initiating Memory. Current region rows: 17981, cols: 11271 ERROR: G_malloc: unable to allocate 811437852 bytes of memory at init_vars.c:136 WARNING: Subprocess failed with exit code 256 WARNING: category information for [r_accumulation] in [PERMANENT] missing or invalid Flow accumulation done. Slope raster map <r_slope> complete Slope map done. Exponent : 0.076488432313 MTI threshold : 3.11495902789 Calculating mti raster map.. Invalid map <r_accumulation> Parse error ERROR: An error occurred while running r.mapcalc -- View this message in context: http://osgeo-org.1560.x6.nabble.com/r-hazard-flood-ERROR-G-malloc-r-accumulation-tp5059130.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
