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: 55
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

catalinaporaicu
Posts: 6
Joined: Thu Jan 16, 2020 10:12 am

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

Post by catalinaporaicu » Wed Sep 02, 2020 8:48 am

Hello, has anyone found out how to do this? I would like to be able to read the inverse of air density from the model, NOT calculate it (although if this is not possible, I will have to do that). I would like to see what the exact value that the model uses is.

neel14
Posts: 86
Joined: Fri Mar 15, 2019 6:52 am

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

Post by neel14 » Fri Oct 16, 2020 3:48 am

Hi, has anyone found the solution?
How should I calculate it from the model output?

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