What are the definitions of QNDROP and QNICE?

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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!
Yongbo
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