GRASS GIS manual: r.basins.fill

Note: A new GRASS GIS stable version has been released: GRASS GIS 7.4, available here.
Updated manual page: here

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
NOTES
SEE ALSO
AUTHORS

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.