Authors: original version L.Mitas, H.Mitasova GRASS implementation J. Hofierka see references in manual page or at: http://www2.gis.uiuc.edu:2280/modviz/papers/listsj.html r.sim.water

NAME

r.sim.water - Overland flow hydrologic model based on duality particle-field concept (SIMWE)

SYNOPSIS

r.sim.water
r.sim.water help
r.sim.water [-mt] elevin=string dxin=string dyin=string rain=string infil=string [traps=string] manin=string [sites=string] [depth=string] [disch=string] [err=string] [outwalk=string] [nwalk=integer] [niter=integer] [outiter=integer] [density=integer] [diffc=float] [hmax=float] [halpha=float] [hbeta=float]

Flags:

-m
Multiscale simulation
-t
Time-series (dynamic) output

Parameters:

elevin=string
Name of the elevation raster file
dxin=string
Name of the x-derivatives raster file
dyin=string
Name of the y-derivatives raster file
rain=string
Name of the rainfall excess raster file
infil=string
Name of the infiltration excess raster file
traps=string
Name of the flow control raster file
manin=string
Name of the Mannings n raster file
sites=string
Name of the site file with x,y locations
depth=string
Output water depth raster file
disch=string
Output water discharge raster file
err=string
Output simulation error raster file
outwalk=string
Name of the output walkers site file
nwalk=integer
Number of walkers
Default: 2000000
niter=integer
Number of time iterations (sec.)
Default: 1200
outiter=integer
Time step for saving output maps (sec.)
Default: 300
density=integer
Density of output walkers
Default: 200
diffc=float
Water diffusion constant
Default: 0.8
hmax=float
Threshold water depth (diffusion increases after this water depth is reached)
Default: 0.4
halpha=float
Diffusion increase constant
Default: 4.0
hbeta=float
Weighting factor for water flow velocity vector
Default: 0.5

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