NAME

       r.basins.fill  - Generates watershed subbasins raster map.

KEYWORDS

       raster, hydrology, watershed

SYNOPSIS

       r.basins.fill
       r.basins.fill --help
       r.basins.fill   cnetwork=name   tnetwork=name   output=name   number=integer    [--overwrite]    [--help]
       [--verbose]  [--quiet]  [--ui]

   Flags:
       --overwrite
           Allow output files to overwrite existing files

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       cnetwork=name [required]
           Name of input coded stream network raster map

       tnetwork=name [required]
           Name of input thinned ridge network raster map

       output=name [required]
           Name for output raster map

       number=integer [required]
           Number of passes through the dataset

DESCRIPTION

       r.basins.fill generates a raster map layer depicting subbasins, based on input raster map layers for  the
       coded  stream  network (where each channel segment has been "coded" with a unique category value) and for
       the ridges within a given watershed.  The raster map layer depicting  ridges  should  include  the  ridge
       which  defines  the perimeter of the watershed.  The coded stream network can be generated as part of the
       r.watershed program, but the map layer of ridges will need to be created by hand  (for  example,  through
       digitizing done in wxGUI vector digitizer).

       The  resulting output raster map layer will code the subbasins with category values matching those of the
       channel segments passing through them.  A user-supplied number of passes through the data is made  in  an
       attempt  to  fill in these subbasins.  If the resulting map layer from this program appears to have holes
       within a subbasin, the program should be rerun with a higher number of passes.

NOTES

       The current geographic region setting is ignored.  Instead, the geographic region for  the  entire  input
       stream’s map layer is used.

SEE ALSO

       See  Appendix  A  of  the  GRASS  Tutorial:  r.watershed  for  further  details  on  the  combined use of
       r.basins.fill and r.watershed.

        r.water.outlet, r.watershed, wxGUI vector digitizer

AUTHORS

       Dale White, Dept. of Geography, Pennsylvania State University
       Larry Band, Dept. of Geography, University of Toronto, Canada

SOURCE CODE

       Available at: r.basins.fill source code (history)

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       © 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual