Difference between revisions of "Snow Card Inputs - Optional"
From Gsshawiki
| Line 24: | Line 24: | ||
! Card !! Argument !! Units !! Description | ! Card !! Argument !! Units !! Description | ||
|- | |- | ||
| − | | <pre>NWSRFS_SCF ##.##</pre> || ''real'' || | + | | <pre>NWSRFS_SCF ##.##</pre> || ''real'' || ''fraction'' || Snow Cover Factor (adjusts for mis-readings in the gage data (see '''[[Continuous:Snowfall_Accumulation_and_Melting]]'''). |
|- | |- | ||
| − | | <pre> | + | | <pre>SNOW_TEMP_BASE ##.##</pre> || ''real'' || °C || Base Temperature ('''MBASE''') at which melt in snow begins |
|- | |- | ||
| − | | <pre> | + | | <pre>SNOW_SWE_FILE ''File</pre> || ''real'' || ''File || Negative Melt Factor. |
|- | |- | ||
| <pre>NWSRFS_FUA ##.##</pre> || ''real'' || || Empirical Wind Function Factor. | | <pre>NWSRFS_FUA ##.##</pre> || ''real'' || || Empirical Wind Function Factor. | ||
Revision as of 15:49, 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 calling which snow melt algorithm to use
| Melt Method | Card | Description |
|---|---|---|
| Hybrid Energy Balance | default (no card) |
The Hybrid Energy Balance Method for melting snow is the default, so it is utilized if NWSRFS_SNOW and EB_SNOW are not present in the Project File. |
| Temperature Index | NWSRFS_SNOW |
The Temperature Index Method for melting snow is utilized if this card is present in the Project File. |
| Energy Balance | EB_SNOW |
The Energy Balance Method for melting snow is utilized if this card is present in the Project File. |
Cards Associated with All Three Melt Methods
| Card | Argument | Units | Description |
|---|---|---|---|
NWSRFS_SCF ##.## |
real | fraction | Snow Cover Factor (adjusts for mis-readings in the gage data (see Continuous:Snowfall_Accumulation_and_Melting). |
SNOW_TEMP_BASE ##.## |
real | °C | Base Temperature (MBASE) at which melt in snow begins |
SNOW_SWE_FILE ''File |
real | File | Negative Melt Factor. |
NWSRFS_FUA ##.## |
real | Empirical Wind Function Factor. | |
NWSRFS_PLWHC ##.## |
real | % | Percent Liquid Water Holding Capacity. |
Cards Associated with BOTH Hybrid Energy Balance and Temperature Index Methods
| Card | Argument | Units | Description |
|---|---|---|---|
NWSRFS_FR_USE ##.## |
real | fraction | Specifies the fraction of precipitation in the form of rain when temperature drop below MBASE. |
NWSRFS_TIPM ##.## |
real | Snow Cover Thermal Gradient | |
NWSRFS_NMF ##.## |
real | mm/°C/dt | Negative Melt Factor. |
NWSRFS_FUA ##.## |
real | Empirical Wind Function Factor. | |
NWSRFS_PLWHC ##.## |
real | % | Percent Liquid Water Holding Capacity. |
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
