Topographic Wetness Index (TWI)
ta_hydrology
ParameterRaster|SLOPE|Slope|False
ParameterRaster|AREA|Catchment Area|False
ParameterRaster|TRANS|Transmissivity|True
ParameterSelection|CONV|Area Conversion|[0] no conversion (areas already given as specific catchment area);[1] 1 / cell size (pseudo specific catchment area)
ParameterSelection|METHOD|Method (TWI)|[0] Standard;[1] TOPMODEL
OutputRaster|TWI|Topographic Wetness Index