Inverse of air density (alt) from wrf-chem output

WRF model-related NCL questions/topics
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sm2020
Posts: 1
Joined: Mon Jun 29, 2020 10:18 am

Inverse of air density (alt) from wrf-chem output

Post by sm2020 » Mon Jun 29, 2020 10:32 am

Hi All,
Is there any way to obtain variable alt (inverse of density of air) from output of WRF-Chem v3.9 model using NCAR Command Language (NCL)?
Note: variable 'alt' is used in chemistry modules of WRF-Chem to convert mixing ratio (in kg/kg-air) to concentration (ug/m3).

abjaye
Posts: 54
Joined: Fri Jun 08, 2018 2:37 am

Re: Inverse of air density (alt) from wrf-chem output

Post by abjaye » Thu Jul 02, 2020 9:17 pm

Hi,

I'm sorry, but I don't really understand your questions. Are you just trying to extract the variable from the output, or calculate it?
NCAR/MMM

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