r.gsflow.hydrodem

Creates hydrologically correct MODFLOW DEM from higher-res DEM

r.gsflow.hydrodem dem=name grid=name streams=name streams_modflow=name [dem_modflow=name] [--overwrite] [--verbose] [--quiet] [--qq] [--ui]

Example:

r.gsflow.hydrodem dem=name grid=name streams=name streams_modflow=name

grass.script.run_command("r.gsflow.hydrodem", dem, grid, streams, streams_modflow, dem_modflow=None, overwrite=False, verbose=False, quiet=False, superquiet=False)

Example:

gs.run_command("r.gsflow.hydrodem", dem="name", grid="name", streams="name", streams_modflow="name")

Parameters

Command linePython (grass.script)

dem=name [required]
    Input higher-resolution elevation data
    Name of input raster map
grid=name [required]
    MODFLOW grid
    Or data source for direct OGR access
streams=name [required]
    Vector map of stream network (lines)
    Or data source for direct OGR access
streams_modflow=name [required]
    Stream network at MODFLOW grid resolution
    Name for output raster map
dem_modflow=name
    Hydrologically corrected DEM at MODFLOW grid resolution
    Name for output raster map
--overwrite
    Allow output files to overwrite existing files
--help
    Print usage summary
--verbose
    Verbose module output
--quiet
    Quiet module output
--qq
    Very quiet module output
--ui
    Force launching GUI dialog

dem : str, required
    Input higher-resolution elevation data
    Name of input raster map
    Used as: input, raster, name
grid : str, required
    MODFLOW grid
    Or data source for direct OGR access
    Used as: input, vector, name
streams : str, required
    Vector map of stream network (lines)
    Or data source for direct OGR access
    Used as: input, vector, name
streams_modflow : str, required
    Stream network at MODFLOW grid resolution
    Name for output raster map
    Used as: output, raster, name
dem_modflow : str, optional
    Hydrologically corrected DEM at MODFLOW grid resolution
    Name for output raster map
    Used as: output, raster, name
overwrite: bool, optional
    Allow output files to overwrite existing files
    Default: False
verbose: bool, optional
    Verbose module output
    Default: False
quiet: bool, optional
    Quiet module output
    Default: False
superquiet: bool, optional
    Very quiet module output
    Default: False

DESCRIPTION

r.gsflow.hydrodem generates a hydrologically-correct MODFLOW DEM for GSFLOW based on higher-resolution flow routing. It does so by taking minimum grid cell elevations where streams are present, and mean grid cell elevations elsewhere, while coarsening the resolution to that of the specified MODFLOW grid resolution.

REFERENCES

Ng, G.-H. C., A. D. Wickert, R. L. McLaughlin, J. La Frenierre, S. Liess, and L. Sabeeri (2016), Modeling the role of groundwater and vegetation in the hydrological response of tropical glaciated watersheds to climate change, in AGU Fall Meeting Abstracts, H13L–1590, San Francisco, CA.

AUTHOR

Andrew D. Wickert

SOURCE CODE

Available at: r.gsflow.hydrodem source code (history)
Latest change: Thursday Feb 20 13:02:26 2025 in commit 53de819