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r.topmodel: Simulates TOPMODEL which is a physically based hydrologic model.

r.topmodel - Simulates TOPMODEL which is a physically based hydrologic model.


r.topmodel r.topmodel help r.topmodel [-i] [basin=string] [elevation=string] [depressionless=string] [direction=string] [belevation=string] [topidx=string] [nidxclass=integer] idxstats=string parameters=string input=string output=string [Qobs=string] [timestep=integer] [idxclass=integer] [--overwrite] [--verbose] [--quiet] Flags: -i Input data given for (o/i) --overwrite Allow output files to overwrite existing files --verbose Verbose module output --quiet Quiet module output Parameters: basin=string (i) Basin map created by r.water.outlet (MASK) elevation=string (i) Elevation map depressionless=string (o) Depressionless elevation map direction=string (o) Direction map for depressionless elevation map belevation=string (o/i) Basin elevation map (MASK applied) topidx=string (o) Topographic index ln(a/tanB) map (MASK applied) nidxclass=integer (i) Number of topographic index classes Default: 30 idxstats=string (o/i) Topographic index statistics file parameters=string (i) TOPMODEL Parameters file input=string (i) Rainfall and potential evapotranspiration data file output=string (o) Output file Qobs=string (i) OPTIONAL Observed flow file timestep=integer (i) OPTIONAL Output for given time step idxclass=integer (i) OPTIONAL Output for given topographic index class


r.topmodel simulates TOPMODEL which is a physically based hydrologic model. Note: (i) means input; (o) means output; (o/i) means input or output The -i flag indicates that input data are given for (o/i). Without this flag, all inputs (i) and intermediate outputs (o/i) should be given. For example, [belevation] map will be created from [elevation] and [basin] in every run. However, given the same [elevation] and [basin], [belevation] output will be the same all the time, so r.topmodel can directly take [belevation] as an input with this flag to save time. Selected Parameters: depressionless map is created as follows: r.fill.dir input=elevation elev=depressionless dir=direction type=grass This option can be omitted if [elevation] map is already depressionless. belevation map is created from [elevation] with [basin] mask applied: r.mapcalc "belevation = if(basin == 0 || isnull(basin), null(), elevation)" topidx map is created as follows: r.topidx input=elevation output=topidx Qobs Compare simulated flows with observed flows and calculate model efficiency.


K. Beven, R. Lamb, P. Quinn, R. Romanowicz, and J. Freer. TOPMODEL, in V.P. Singh (Ed.). Computer Models of Watershed Hydrology. Water Resources Publications, 1995. S.C. Liaw, Streamflow simulation using a physically based hydrologic model in humid forested watersheds (Dissertation). Colorado State University, CO. p163, 1988.


r.fill.dir, r.mapcalc, r.topidx How to run r.topmodel
Main algorithm sources are rewritten in C based on TMOD9502.FOR. Thanks to Keith Beven. GRASS port by Huidae Cho Hydro Laboratory, Kyungpook National University, South Korea Last changed: $Date: 2010-09-21 15:37:59 +0200 (Tue, 21 Sep 2010) $ Full index (C) 2003-2010 GRASS Development Team R.TOPMODEL(1)

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