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NAME

r.flowfill - Moves water downhill into pools or the ocean/map edge

KEYWORDS

raster, hydrology

SYNOPSIS

r.flowfill
r.flowfill --help
r.flowfill input=name np=integer [threshold=float] [h_runoff=float] [h_runoff_raster=name] [ties=string] [ffpath=string] [output=name] [water=name] [--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:

input=name [required]
Input DEM
Name of input raster map
np=integer [required]
Number of processors to use (>= 3)
threshold=float
Threshold water-surface elevation change to conclude calculation
Default: 0.001
h_runoff=float
Initial depth of uniform runoff [thickness in map units]
h_runoff_raster=name
Initial depth of non-uniform runoff [thickness in map units]
Name of input raster map
ties=string
Tie-handling: counterclockwise from Northwest (PREF) or random (RAND)
Options: PREF, RAND
Default: PREF
ffpath=string
Path to the FlowFill executable
Default: flowfill
output=name
Output DEM + pooled/remaining runoff
Name for output raster map
water=name
Output water depth at the end of the run
Name for output raster map

Table of contents

DESCRIPTION

r.flowfill runs the FlowFill code (Callaghan and Wickert, 2019) that moves water cell-by-cell to flood depressions in a DEM. It can be used as a simplified/cellular simulation of downslope flow (though not equivalent to physics-based approaches for flow) or as a tool to fill depressions in a DEM. For further information, see the README at https://github.com/KCallaghan/FlowFill.

REFERENCES

Callaghan, K.~L., and A.~D. Wickert (in revision), Computing water flow through complex landscapes, part 1: Incorporating depressions in flow routing using FlowFill, Earth Surface Dynamics Discussions, doi:10.5194/esurf-2019-11.

SEE ALSO

r.fill.dir

AUTHORS

Kerry L. Callaghan, Andrew D. Wickert

SOURCE CODE

Available at: r.flowfill source code (history)

Latest change: Thu Feb 3 09:32:35 2022 in commit: f17c792f5de56c64ecfbe63ec315307872cf9d5c

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