Nudging Water Vapor mixing ratio

[shaikatz]

Hello,
I have tried to understand how to nudge the variable above based on many papers, however and still don't get it due to the fact that WRF can nudge only wind, humidity and temperature. Do I need to convert the humidity to water vapor mixing ratio?

Thanks for your help,
Shai

 

[Ming Chen]

Shai,
Pease clarify that by the word 'humidity', you mean "relative humidity". If so, then yes you should convert RH to water vapor mixing ratio for nudging.