NAME
v.gsflow.reaches - Build stream "reaches" that link PRMS segments to MODFLOW cells
KEYWORDS
vector,
stream network,
hydrology,
GSFLOW
SYNOPSIS
v.gsflow.reaches
v.gsflow.reaches --help
v.gsflow.reaches segment_input=name grid_input=name elevation=name output=name [s_min=float] [h_stream=float] [upstream_easting_column_seg=string] [upstream_northing_column_seg=string] [downstream_easting_column_seg=string] [downstream_northing_column_seg=string] [tostream_cat_column_seg=string] [strthick=float] [strhc1=float] [thts=float] [thti=float] [eps=float] [uhc=float] [--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:
- segment_input=name [required]
- PRMS stream segments
- Or data source for direct OGR access
- grid_input=name [required]
- MODFLOW grid
- Or data source for direct OGR access
- elevation=name [required]
- DEM for slope along reaches
- Name of input raster map
- output=name [required]
- Reaches for GSFLOW
- Name for output vector map
- s_min=float
- Minimum reach slope
- Default: 0.0001
- h_stream=float
- Stream channel depth (bank height) [m]
- Default: 1
- upstream_easting_column_seg=string
- Upstream easting (or x or lon) column name
- Default: x1
- upstream_northing_column_seg=string
- Upstream northing (or y or lat) column name
- Default: y1
- downstream_easting_column_seg=string
- Downstream easting (or x or lon) column name
- Default: x2
- downstream_northing_column_seg=string
- Downstream northing (or y or lat) column name
- Default: y2
- tostream_cat_column_seg=string
- Adjacent downstream segment cat (0 = offmap)
- Default: tostream
- strthick=float
- Streambed sediment thickness [m]
- Default: 1
- strhc1=float
- Streambed hydraulic conductivity [m/day]
- Default: 5
- thts=float
- theta_sat: Streambed saturated water content (i.e. porosity) [unitless]
- Default: 0.35
- thti=float
- Streambed initial water content [unitless]
- Default: 0.3
- eps=float
- Epsilon: streambed Brooks-Corey exponent [unitless]
- Default: 3.5
- uhc=float
- Streambed unsaturated zone saturated hydraulic conductivity [m/day]
- Default: 0.3
v.gsflow.reaches produces channel "reaches", which are the
intersection between PRMS stream segments and MODFLOW grid cells, for
the USGS combined groundwater and surface-water model GSFLOW.
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.
v.gsflow.export,
v.gsflow.gravres,
v.gsflow.grid,
v.gsflow.hruparams,
v.gsflow.segments,
v.gsflow.mapdata,
v.stream.inbasin,
v.stream.network
Andrew D. Wickert
SOURCE CODE
Available at:
v.gsflow.reaches source code
(history)
Latest change: Monday Jan 30 19:52:26 2023 in commit: cac8d9d848299297977d1315b7e90cc3f7698730
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GRASS GIS 8.4.1dev Reference Manual