Dear Grass Users
Does anyone out there know of a GRASS routine or mapcalc statement that will
compute the slope of rivers? The r.slope.aspect doesn't work because of the
very low slopes. I think one would have to first define the pixels covering
the channels and then look up and downstream for the change in elevation over a
much greater distance.
Thanks in advance.
David Harbor
Washington and Lee University
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GIS Lab / Geology Department / Wahsington and Lee University / Lexington VA 244
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reply to: grass@gilberty.geology.wlu.edu or to David Harbor <harbor@wlu.edu>