Difference between revisions of "Snow Card Inputs - Optional"
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(Created page with "The following table lists all project file cards pertaining to rainfall input. Either, but not both, PRECIP_UNIF or PRECIP_FILE must be included in each GSSHA project file. {...") |
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| − | The following | + | The following tables list all project file cards pertaining to snow accumulation, melt, and melt-water transport. The '''[[Hybrid Energy Balance]]''' method is the default snow melt method (no additional card required to run this method). |
| + | ''Cards Associated with BOTH '''[[Hybrid Energy Balance]]''' and '''[[Temperature Index]]''' Methods <br> | ||
{| class="thin" width=700px | {| class="thin" width=700px | ||
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Revision as of 15:17, 28 November 2012
The following tables list all project file cards pertaining to snow accumulation, melt, and melt-water transport. The Hybrid Energy Balance method is the default snow melt method (no additional card required to run this method).
Cards Associated with BOTH Hybrid Energy Balance and Temperature Index Methods
| Card | Argument | Units | Description |
|---|---|---|---|
PRECIP_UNIF |
none | Specifies spatially and temporally uniform rainfall. Also requires: RAIN_INTENSITY, RAIN_DURATION, START_DATE, START TIME. Mutually exclusive with PRECIP_FILE. | |
RAIN_INTENSITY ##.## |
real | mm/hr | Intensity of spatially- and temporally-uniform rainfall. Required only for PRECIP_UNIF. |
RAIN_DURATION ## |
integer | minutes | Duration of spatially- and temporally-uniform rainfall. Required only for PRECIP_UNIF. |
START_DATE [yr mo day] |
integers | year month day |
Year, month, and day of the beginning of a simulation. Required only for PRECIP_UNIF. See section on rainfall input for format description. This card can also be used with long term simulations to start the simulation at a point other than the beginning of the hmet time series. See long term simulation information. |
START_TIME [hr min] |
integers | hr minute |
Hour and minute of the beginning of a simulation. Required only for PRECIP_UNIF. See section on rainfall input for format description. This card can also be used with long term simulations to start the simulation at a point other than the beginning of the hmet time series. See long term simulation information. |
PRECIP_FILE "filename.gag" |
file name | Input ASCII file containing spatially and temporally varied rainfall rates (mm hr-1). See the manual section titled Precipitation Input for a description of the file format. Mutally exclusive with PRECIP_UNIF. | |
RAIN_INV_DISTANCE |
none | Inverse distance squared rainfall interpolation. REQUIRED for PRECIP_FILE. Mutually exclusive with RAIN_THIESSEN. | |
RAIN_THIESSEN |
none | Thiessen polygon (nearest neighbor) rainfall interpolation. Recommended particularly when rainfall rates are derived from radar estimates. REQUIRED for PRECIP_FILE. Mutually exclusive with RAIN_INV_DISTANCE. |
GSSHA User's Manual
- 3 Project File
- 3.1 Required Inputs
- 3.2 Mapping Table – Optional
- 3.3 Overland Flow – Required
- 3.4 Interception – Optional
- 3.5 Rainfall Input and Options – Required
- 3.6 Infiltration – Optional
- 3.7 Channel Routing – Optional
- 3.8 Continuous Simulations – Optional
- 3.9 Saturated Groundwater Flow – Optional
- 3.10 Soil Erosion – Optional
- 3.11 Constituent Transport – Optional
- 3.12 Subsurface Drainage Network – Optional
- 3.13 Output Files – Required
