Difference in soil moisture definition in WRF and PALM

[emmanuela-1990]

Hi Dongqi,

I discovered that there is a difference between how soil moisture is defined in WRF and PALM. It seems this was not considered in the code. In WRF, soil moisture is between 0 and 1, which I think is the fraction of the soil moisture to the saturated soil moisture while PALM soil moisture is in the unit of volumetric water content (m3 m−3) with values between the wilting and saturated soil moisture. The wilting and saturated soil moisture depends on the soil type. Please, can you make this correction in the code?

[dongqi-DQ]

Hi,

Can you add some references/guidance so I can implement this? e.g. equations to do the transform. I'm no expert in the soil moisture part so I want to make sure I make the right correction.

Cheers

[emmanuela-1990]

Hi Dongqi,
I am not an expert in this area as well. What I did for now is to renormalize the WRF soil moisture to a value between the wilting and saturated value written in PALM, which depends on the soil type. I suggest you speak to the PALM group on the best way to make the right correction.

Regards,
Emmanuel