What are the definitions of QNDROP and QNICE?

Topics related to current and future physics in the WRF as well as any problems you may have.

What are the definitions of QNDROP and QNICE?

Postby yongbo-zhou » Mon Oct 28, 2019 11:05 pm

Hi there,
When specifing the mp_physics=17 in the namelist.input, the WRF-generated wrfout files contain two cloud-related variables: QNDROP and QNICE. QNDROP is described as "Droplet number mixing ratio", and QNICE is described as "Ice Number concentration". Both variables are in the unit of kg-1. To my understanding, the term "number mixing ratio" is odd, along side with the specified unit "kg -1". Could someone please point out what are the definitions of the two variables?
Your reply would be highly appreciated!
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