Computing erosion/deposition pattern with SIMWE and GIS

The theory is here, we recall only basic equations here. The implementation is for steady state water and sediment flow given by:

EQXXXXX
EQSSSSS
where xxxx.



GRASS

r.simwater elev=elevation rough=mannings rain=rainfallexcess preflow=preferentialflow diff=diffusion out=waterdepth

r.simsed flowx=flowdirx flowy=flowdiry rough=mannings diff=diffusion detach=detachmentfac trans=transportfac crits=critshearstress outsed=sedimentflow outed=erosiondeposition



ArcGIS

link through dll