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   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.

СÐ. ТÐÐÐÐ

   [1]r.fill.dir, [2]r.mapcalc, [3]r.topidx, [4]How to run r.topmodel

ÐÐТÐРЫ

   Main algorithm sources are rewritten in C based on TMOD9502.FOR.
   Thanks to Keith Beven.

   GRASS port by [5]Huidae Cho
   Hydro Laboratory, Kyungpook National University, South Korea

   Last changed: $Date: 2006-07-18 14:35:23 -0500 (ÐÑ, 18 иÑл 2006) $

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References

   1. file://localhost/root/tmp/2/fin/r.fill.dir.html
   2. file://localhost/root/tmp/2/fin/r.mapcalc.html
   3. file://localhost/root/tmp/2/fin/r.topidx.html
   4. http://geni.ath.cx/r.topmodel.html
   5. mailto:grass4u