Snow Card Inputs - Optional

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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
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.
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.


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