## DESCRIPTION

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 defines that input data are given for (o/i). Without this flag, all input data (i) and intermediate output (o/i) should be given and intermediate output can not be input for run. For example, [belevation] map will be created from [elevation] and [basin] in every run. However, every [belevation] output is the same and this is useless process if [belevation] map is already given. With this flag, intermediate output can be input for run. (o/i) parameters will be affected by this flag.

### Selected Parameters:

depressionless
  (o) Depressionless elevation map
  This can be omitted if [elevation] map is already depressionless map. If this is given, [depressionless] map will be used as [elevation] map.
belevation
  (o/i) Basin elevation map (extracted). Study basin extracted elevation map
topidx
  (o/i) Topographic index ln(a/tanB) map (extracted). Study basin extracted topographic index map
Qobs
  Observed Q file. Compare Qt with Qobs and calculate model efficiency

  ## SEE ALSO

  r.topidx

  ## AUTHORS

  Main algorithm sources are rewritten from TMOD9502.FOR.
  TMOD9502.FOR is available from www.es.lancs.ac.uk/hfdg/topmodel.html.
  Thanks to Keith Beven.

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

  Last changed: $Date: 2005/02/21 09:11:45 $