WRF-Chem tendency diagnostics for chemistry

[beinnnnn]

Hi all,

I ran my simulation with chemdiag=1. But I cannot find the diagnostics (such as conv_o3, chem_o3, vmix_o3, etc.) in my wrfout files. I am wondering is there any other thing I need to do to enable the output of chemical diagnostics? Thank you!

Best regards,
Bessie

 

[Ruixin]

Hi Bessie,
I also encountered the same problem when running WRF-Chem v4.0. Has your problem been solved? Could you please give me some suggestions?Thank you.

Best regards,
Ruixin

 

[jordanschnell]

Hi Bessie and Ruixin,

You can output those variables in one of two ways -

option a)
1. Run "./clean -a"
2. add an "h" the variables in Registry/registry.chem that you want output (.e.g., change this:
state real chem_co ikjf chem_ct 1 - r "chem_co" "ACCUMULATED CHEM TENDENCY FOR CO" "ppmv"
to this:
state real chem_co ikjf chem_ct 1 - rh "chem_co" "ACCUMULATED CHEM TENDENCY FOR CO" "ppmv"
3. Recompile the model

option b)

Add a custom i/o fields file (see the WRF-Chem user guide) to your run directory and set in your namelist.

Jordan

 

[Ruixin]

Hi,Jordan

Thanks for your help,I have successfully output these variables!

Best regards,
Ruixin