User:Jcreer/SWB: Difference between revisions
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===Required Inputs=== | ===Required Inputs=== | ||
*Model Domain Definition | *Model Domain Definition | ||
**Domain raster definition | |||
*Growing Season | *Growing Season | ||
**Start day | |||
**End day | |||
**Hemisphere | |||
*Climate Data | *Climate Data | ||
**Precipitation | |||
**Temperature | |||
**Climate tabular files | |||
**File prefix | |||
*Flow Direction | *Flow Direction | ||
**Source raster | |||
*Soil Group | *Soil Group | ||
*Land Use | *Land Use | ||
Revision as of 16:24, 11 May 2018
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This contains information about functionality available starting at GMS version 10.4. The content may not apply to other versions. |
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The Soil-Water-Balance (SWB) model has been developed by USGS to allow estimates of potential recharge to be made quickly and easily.
Required Input
Four gridded datasets are required:
- Hydrologic soil group
- land-use/land cover
- Available soil-water capacity
- Surface-water flow direction
In addition to gridded land-surface data the model requires tabular daily climatological data (daily precip (inches), average air temperature [F], max air temp [F], min air temp [F]). Additional data may be required depending on model options: (1) daily average wind speed (m/s), (2) daily average relative humidity (%), (3) daily max relative humidity (%), (4) daily percentage of possible sunshine (%). Finally a lookup table must be supplied to assign curve numbers, interception values, rooting depths, and maximum daily recharge values.
Creating an SWB Simulation
To create an SWB simulation, do the following:
- Right-click on the "Project" item the Project Explorer and select New Simulation | SWB.
Simulation Menu
Right-clicking on the simulation item 
in the Project Explorer will bring up the following menu command:
- Delete – Removes the simualation item.
- Duplicate Creates a copy for the simulation, including all parameters set in the model control.
- Rename – Allows changing the name of the simulation item.
- Model Control – Opens the Model Control dialog where the model run parameters are set.
- Model Check – Looks for potential errors in the model setup. Brings up the Model Checker dialog if issues are discovered.
- Export SWB
- Launch SWB
- Save, Export, and Launch SWB
- Properties – Opens the Properties dialog which displays the simulation properties and allows adding notes.
Model Control
The parameters for the SWB model run are set in the Model Control dialog.
Required Inputs
- Model Domain Definition
- Domain raster definition
- Growing Season
- Start day
- End day
- Hemisphere
- Climate Data
- Precipitation
- Temperature
- Climate tabular files
- File prefix
- Flow Direction
- Source raster
- Soil Group
- Land Use
- Available Soil-water Capacity
- Initial Soil Moisture
- Initial Snow Cover
- Runoff Calculation and Routing Method
- Evapotranspiration Method
Optional Inputs
- Adjusted Water Capacity
- Initial abstraction method
- Specify iterative method tolerance
- Ansi colored text
- Frozen ground
- Specify continuous frozen ground threshold values
- Initial frozen ground index
Output Options
- Suppress screen output
- Suppress daily files
- Suppress DISLIN messages
- Output grid file format
- Output grid filename prefix
- Output grid filename suffix
- Output Variables
- Variable name
- Daily output
- Monthly output
- Annual output
- Copy/Paste Mode
- Import
- Export
- Insert Above
- Insert Below
- Delete
External Links
GMS – Groundwater Modeling System | ||
|---|---|---|
| Modules: | 2D Grid • 2D Mesh • 2D Scatter Point • 3D Grid • 3D Mesh • 3D Scatter Point • Boreholes • GIS • Map • Solid • TINs • UGrids |  |
| Models: | FEFLOW • FEMWATER • HydroGeoSphere • MODAEM • MODFLOW • MODPATH • mod-PATH3DU • MT3DMS • MT3D-USGS • PEST • PHT3D • RT3D • SEAM3D • SEAWAT • SEEP2D • T-PROGS • ZONEBUDGET | |
| Aquaveo | ||
