"Can you inform us about the new methods you had in mind?" Well, there is a software (IPH-Hydro Tools) [from the Large Scale Hydrology research group of the Institute of Hydraulic Research at the Federal University of Rio Grande do Sul, in Porto Alegre, Brazil] which gives us three options as methods to remove depressions, namely: Heuristic Search (HS), Priority First Search (PFS) and Modified Heuristic Search (MHS). Do you know if GRASS uses one of theses methods?
As for my previous question: I read in Grass manual: "r.fill.dir filters and generates a depressionless elevation map and a flow direction map from a given raster elevation map. The method adopted to filter the elevation map and rectify it is based on the paper titled "Extracting topographic structure from digital elevation model data for geographic information system analysis" by S.K. Jenson and J.O. Domingue (1988)." I just want to know if indeed r.fill.dir function still operates precisely in the same methodology described in the mentioned paper. I am asking specifically about r.fill.dir, no r.watershed or other funcion. Thank you in advance! -- Sent from: http://osgeo-org.1560.x6.nabble.com/Grass-Users-f3884509.html _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
