Missing Parameter Ranges for Calibration

[Matthew Lombardo]

Hi Everyone,

I am about to start my calibration, but some of the parameters that I picked don't have a default range in either the SWAT+ Input/Output Documentation or the SWAT2012 documentation. Does anyone know the default ranges for the following parameters and their units? They are, available water content in soil (AWC), Saturated hydraulic conductivity of the soil layer (soil_k), and USLE equation soil erodibility (K) factor of the top layer (USLE_k).

Also, the only range that I found for Effective hydraulic conductivity of the channel alluvium (k.channel) was in MPa in the SWAT2012 documentation. Does anyone know a default range in mm H2O/mm soil? From what I've researched, you cannot convert MPa to mm H2O/mm soil.

Thank you!