1r.topmodel(1)                 Grass User's Manual                r.topmodel(1)
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NAME

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

10       raster
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SYNOPSIS

13       r.topmodel
14       r.topmodel help
15       r.topmodel  [-i]   [basin=string]    [elevation=string]    [depression‐
16       less=string]      [direction=string]      [belevation=string]     [top‐
17       idx=string]    [nidxclass=integer]   idxstats=string  parameters=string
18       input=string  output=string  [Qobs=string]   [timestep=integer]   [idx‐
19       class=integer]   [--overwrite]  [--verbose]  [--quiet]
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21   Flags:
22       -i
23           Input data given for (o/i)
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25       --overwrite
26           Allow output files to overwrite existing files
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28       --verbose
29           Verbose module output
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31       --quiet
32           Quiet module output
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34   Parameters:
35       basin=string
36           (i)   Basin map created by r.water.outlet (MASK)
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38       elevation=string
39           (i)   Elevation map
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41       depressionless=string
42           (o)   Depressionless elevation map
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44       direction=string
45           (o)   Direction map for depressionless elevation map
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47       belevation=string
48           (o/i) Basin elevation map (MASK applied)
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50       topidx=string
51           (o)   Topographic index ln(a/tanB) map (MASK applied)
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53       nidxclass=integer
54           (i)   Number of topographic index classes
55           Default: 30
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57       idxstats=string
58           (o/i) Topographic index statistics file
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60       parameters=string
61           (i)   TOPMODEL Parameters file
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63       input=string
64           (i)   Rainfall and potential evapotranspiration data file
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66       output=string
67           (o)   Output file
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69       Qobs=string
70           (i)   OPTIONAL Observed flow file
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72       timestep=integer
73           (i)   OPTIONAL Output for given time step
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75       idxclass=integer
76           (i)   OPTIONAL Output for given topographic index class
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DESCRIPTION

79       r.topmodel simulates TOPMODEL which is a  physically  based  hydrologic
80       model.
81
82       Note: (i) means input; (o) means output; (o/i) means input or output
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84       The  -i  flag  indicates  that input data are given for (o/i).  Without
85       this flag, all inputs (i) and  intermediate  outputs  (o/i)  should  be
86       given.   For example, [belevation] map will be created from [elevation]
87       and [basin] in every run.  However,  given  the  same  [elevation]  and
88       [basin],  [belevation]  output will be the same all the time, so r.top‐
89       model can directly take [belevation] as an input with this flag to save
90       time.
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92   Selected Parameters:
93       depressionless map is created as follows:
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95           r.fill.dir    input=elevation   elev=depressionless   dir=direction
96           type=grass
97            This option can be omitted if [elevation] map is  already  depres‐
98           sionless.
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100       belevation map is created from [elevation] with [basin] mask applied:
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102           r.mapcalc  "belevation  =  if(basin  == 0 || isnull(basin), null(),
103           elevation)"
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105
106       topidx map is created as follows:
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108           r.topidx input=elevation output=topidx
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111       Qobs
112           Compare simulated flows with observed  flows  and  calculate  model
113           efficiency.
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SEE ALSO

116       r.fill.dir, r.mapcalc, r.topidx, How to run r.topmodel
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AUTHORS

119       Main algorithm sources are rewritten in C based on TMOD9502.FOR.
120       Thanks to Keith Beven.
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122       GRASS port by Huidae Cho
123       Hydro Laboratory, Kyungpook National University, South Korea
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125       Last changed: $Date: 2006-07-18 21:35:23 +0200 (Tue, 18 Jul 2006) $
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127       Full index
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129       © 2003-2008 GRASS Development Team
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133GRASS 6.3.0                                                      r.topmodel(1)
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