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r.basins.fill - Generates watershed subbasins raster map.
r.basins.fill c_map=name t_map=name result=name number=integer [--overwrite] [--verbose] [--quiet]
- Allow output files to overwrite existing files
- Verbose module output
- Quiet module output
- Name of input coded stream network raster map
- Name of input thinned ridge network raster map
- Name for output raster map
- Number of passes through the dataset
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
but the map layer of ridges will need to be created by hand
(for example, through digitizing done in v.digit).
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.
The current geographic region setting is ignored.
Instead, the geographic region for the entire input stream's
map layer is used.
See Appendix A of the GRASS Tutorial:
r.watershed for further details on the combined use of
r.basins.fill and r.watershed.
Dept. of Geography,
Pennsylvania State University
Larry Band, Dept. of Geography, University of Toronto, Canada
Last changed: $Date: 2010-09-16 00:25:59 -0700 (Thu, 16 Sep 2010) $
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