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]
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21   Flags:
22       -i  Input data given for (o/i)
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24       --overwrite
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26   Parameters:
27       basin=string
28           (i)   Basin map created by r.water.outlet (MASK)
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30       elevation=string
31           (i)   Elevation map
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33       depressionless=string
34           (o)   Depressionless elevation map
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36       direction=string
37           (o)   Direction map for depressionless elevation map
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39       belevation=string
40           (o/i) Basin elevation map (MASK applied)
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42       topidx=string
43           (o)   Topographic index ln(a/tanB) map (MASK applied)
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45       nidxclass=integer
46           (i)   Number of topographic index classes Default: 30
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48       idxstats=string
49           (o/i) Topographic index statistics file
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51       parameters=string
52           (i)   TOPMODEL Parameters file
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54       input=string
55           (i)   Rainfall and potential evapotranspiration data file
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57       output=string
58           (o)   Output file
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60       Qobs=string
61           (i)   OPTIONAL Observed flow file
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63       timestep=integer
64           (i)   OPTIONAL Output for given time step
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66       idxclass=integer
67           (i)   OPTIONAL Output for given topographic index class
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DESCRIPTION

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

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

110       Main algorithm sources are rewritten in C based on TMOD9502.FOR.
111       Thanks to Keith Beven.
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113       GRASS port by Huidae Cho
114       Hydro Laboratory, Kyungpook National University, South Korea
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116       Last changed: $Date: 2006/07/18 19:35:23 $
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118       Full index
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122GRASS 6.2.2                                                      r.topmodel(1)
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