Hi all I would like to calculate a geomorphic index for valley, using the following equation: height of the valley / width of the top of the valley - the higher the index values, the greater the notch (carve in the landscape) in the valley. I found that SAGA gives the "Vertical distance to the channel network". Does GRASS have a function to calculate each ot the two input? Thanks in advance
Cumprimentos, *Valter Albino -* Geógrafo Físico, M.Sc. Modelação H&H / Riscos ambientais / OT&U www.valteralbino.wixsite.com/hydrodynamics
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