r.watershed
r.watershed - Watershed basin analysis program.
Raster (r.*)
ParameterRaster|elevation|Input map: elevation on which entire analysis is based|False
ParameterRaster|depression|Input map: locations of real depressions|True
ParameterRaster|flow|Input map: amount of overland flow per cell|True
ParameterRaster|disturbed.land|Input map or value: percent of disturbed land, for USLE|True
ParameterRaster|blocking|Input map: terrain blocking overland surface flow, for USLE|True
ParameterNumber|threshold|Input value: minimum size of exterior watershed basin|None|None|0
ParameterNumber|max.slope.length|Input value: maximum length of surface flow, for USLE|None|None|0
ParameterBoolean|-4|Allow only horizontal and vertical flow of water|True
OutputRaster|accumulation|Output map: number of cells that drain through each cell
OutputRaster|drainage|Output map: drainage direction
OutputRaster|basin|Output map: unique label for each watershed basin
OutputRaster|stream|Output map: stream segments
OutputRaster|half.basin|Output map: each half-basin is given a unique value
OutputRaster|visual|Output map: useful for visual display of results
OutputRaster|length.slope|Output map: slope length and steepness (LS) factor for USLE
OutputRaster|slope.steepness|Output map: slope steepness (S) factor for USLE