You might try asking that in the gis.stacexchange.com list. There are many knowledgeable gis-ers there.
On Wed, Feb 9, 2011 at 5:14 AM, Cavazzi, Stefano <s.cava...@cranfield.ac.uk>wrote: > Hi All, > > I am using RSAGA for the first time trying to extract some land surface > parameters with "ta_morphometry" and wondering which method is used by > ArcGIS to calculate slope, aspect, curvature, ... > > Methods: > [0] Maximum Slope (Travis et al. 1975) > [1] Maximum Triangle Slope (Tarboton 1997) > [2] Least Squares Fitted Plane (Horn 1981, Costa-Cabral & > Burgess 1996) > [3] Fit 2.Degree Polynom (Bauer, Rohdenburg, Bork 1985) > [4] Fit 2.Degree Polynom (Heerdegen & Beran 1982) > [5] Fit 2.Degree Polynom (Zevenbergen & Thorne 1987) > [6] Fit 3.Degree Polynom (Haralick 1983) > > Which one would suit best a gridded DEM created by spline interpolation > (I'm using [5])? > > Thanks, > Stefano > > Stefano Cavazzi > PhD Student, National Soil Resources Institute > School Of Applied Sciences, Cranfield University > > [[alternative HTML version deleted]] > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
