[GRASSLIST:5233] hydraulic gradient

Hello all,

Does anyone knows how to calculate the hydraulic gradient of a DEM?

tks

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   Carlos Henrique Grohmann de Carvalho - Guano

       Geologist - MSc Student IGc-USP

   Linux User #89721 PGP key: www.keyserver.net

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Does anyone knows how to calculate the hydraulic gradient of a DEM?

Mmh, assuming that capillary processes can be neglected, you could get
something with the slopes (r.slope.aspect).
Be careful with the units, and check the UM for more details on this command.
Hope it helps
P.