[GRASS5] Module differences: r.flow/r.flowmd

[Rich Shepard]

  In my naivte, it appears that there are no differences between r.flow
and r.flowmd.

  The former calculates slope curves (flowlines), flowpath lengths, and
flowline densities (upslope areas) from a raster digital elevation model.

  The latter produces slope lines (flowlines), flowpath lengths and flowline
densities from a raster digital elevation model using a modified multiple
directions algorithm.

  Both take the same input, so what makes each different? If the differences
are minor, I strongly urge that they be combined into a single module
(r.flow) for the 5.0-stable release.

Thanks,

Rich

Dr. Richard B. Shepard, President

                       Applied Ecosystem Services, Inc. (TM)
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