r.basins.fill - Generates a raster map layer showing watershed subbasins.
r.basins.fill number=integer c_map=string t_map=string result=string [--overwrite]
- Force overwrite of output files
- Number of passes through the dataset
- Coded stream network file name
- Thinned ridge network file name
- Name for the resultant watershed partition file
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,
either through digitizing done in
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: 2005/05/02 00:53:49 $
Main index - raster index - Full index