r.sim.water r.sim.water - Overland flow hydrologic simulation using path sampling method (SIMWE). Raster (r.*) ParameterRaster|elevin|Name of the elevation raster map [m]|False ParameterRaster|dxin|Name of the x-derivatives raster map [m/m]|False ParameterRaster|dyin|Name of the y-derivatives raster map [m/m]|False ParameterRaster|rain|Name of the rainfall excess rate (rain-infilt) raster map [mm/hr]|False ParameterString|rain_val|Rainfall excess rate unique value [mm/hr]|50 ParameterRaster|infil|Name of the runoff infiltration rate raster map [mm/hr]|False ParameterString|infil_val|Runoff infiltration rate unique value [mm/hr]|0.0 ParameterRaster|manin|Name of the Mannings n raster map|False ParameterString|manin_val|Mannings n unique value|0.1 ParameterRaster|traps|Name of the flow controls raster map (permeability ratio 0-1)|False ParameterString|nwalk|Number of walkers, default is twice the no. of cells| ParameterString|niter|Time used for iterations [minutes]|10 ParameterString|outiter|Time interval for creating output maps [minutes]|2 ParameterString|diffc|Water diffusion constant|0.8 ParameterString|hmax|Threshold water depth [m] (diffusion increases after this water depth is reached)|0.3 ParameterString|halpha|Diffusion increase constant|4.0 ParameterString|hbeta|Weighting factor for water flow velocity vector|0.5 ParameterBoolean|-t|Time-series output|True OutputRaster|depth|Output water depth raster map [m] OutputRaster|disch|Output water discharge raster map [m3/s] OutputRaster|err|Output simulation error raster map [m]