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ERROR: When using a ..._AQ chemistry package when runing WRF-Chem without ACI (progn=0)

schu21

New member
Hello,

I got the following error when running WRF-Chem without ACI: ERROR: When using a ..._AQ chemistry package, progn must be 1

I found the following info from the user`s guide:
"There are several chemistry options that include the indirect effect and each of these options contain aqueous phase chemistry (e.g., RADM2SORG_AQ, RACMSORG_AQ, CBMZ_MOSIAC_4BIN_AQ, CBMZ_MOSAIC_8BIN_AQ, etc.). It has been assumed by the developers that if a user chooses to run with includes aqeuous phase chemistry, then they also choose to be running with the indirect effect (chemistry-microphysics interactions). If you do not want to include the indirect effect then one must either include a prescribed climatological aerosol distribution (e.g., Gustafson et al., 2007) or choose a chemistry option that does not include aqueous phase chemistry."

I understant that it requires an chem_opt without aqueous chemistry to run with progn=0. But I want to run the model without the impact of chemistry on meteorology (tempertature and wind). Therefore, I think I should turn off both the aerosol direct and indirect effects (if there is correct). I need to do some analysis on the gases so I need to keep my chem_opt. So, my question is: is there any way to run WRF-Chem with the same chem_opt (including aqueous chemistry) but disable the chem impact on met (or run with progn=0)?

Here is part of the namelist.input for your convenience:

&chem
kemit = 19,
chem_opt = 132, 132, 132, 132,
bioemdt = 30, 30, 30, 30,
photdt = 30, 30, 10, 10,
chemdt = 30, 10, 5, 5,
io_style_emissions = 1,
emiss_inpt_opt = 1, 1, 1, 1,
emiss_opt = 3, 3, 3, 3,
chem_in_opt = 0, 0, 0,
phot_opt = 3, 3, 3, 3,
gas_drydep_opt = 1, 1, 1, 1,
aer_drydep_opt = 1, 1, 1, 1,
bio_emiss_opt = 3, 3, 3,
ne_area = 500,
dust_opt = 0,
seas_opt = 2,
opt_pars_out = 0,
gas_bc_opt = 1, 1, 1, 1,
gas_ic_opt = 1, 1, 1, 1,
aer_bc_opt = 1, 1, 1, 1,
aer_ic_opt = 1, 1, 1, 1,
gaschem_onoff = 1, 1, 1, 1,
aerchem_onoff = 1, 1, 1, 1,
wetscav_onoff = 1, 1, 1, 1,
cldchem_onoff = 1, 1, 1, 1,
vertmix_onoff = 1, 1, 1, 1,
chem_conv_tr = 1, 0, 0, 0, !CuOn
aer_ra_feedback = 0, 0, 1, 1,
have_bcs_chem = .false.,.false.,.false.,.false.,
chemdiag = 0,

Thanks!
 
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