I have a drainage basin (watershed; 21,000 ac/9551 ha) with two points of interest on the main creek draining that basin. These points are approximately in the center of the basin, not at the outlet. I'm working with a 5m DEM map (re-sampled from the original 10m resolution) for all analyses. Using the easting and northing of these two points I want the area each drains.
The r.flow module generates flow lines, flow lengths, and contributing upslope areas. I don't know that this is what I want because I don't know how to interpret the resulting maps and whether the density map shows all contributing areas. In addition to learning how to interpret r.flow results I'd like to learn if there's a more appropriate module (or modules) to calculate the information I need. Thanks, Rich _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user