O3 is not an invariant

[jedwards4b]

Issue Type

Infrastructure Update

Issue Description

I am trying to create a fully active compset using CAM70%MT%CT4S and I am getting an error from cam

trcdata_init: file%has_ps =  T
 O3                               is not an invariant
 ERROR: tracer_cnst_init

Will this change answers?

Yes

Will you be implementing this yourself?

Yes, but I will need some help

[jedwards4b]

From @fvitt : It looks like you have prescribed oxidants specified in the namelist. When using T4S chemistry, the oxidants are prognosed and should not be prescribed.

[jedwards4b]

Again from @fvitt: The issue is with the namelist use case file
CAM_NML_USE_CASE: 1850_cam_mt

This is appropriate for the ghg_mam for chemistry which needs prescribed oxidants. You need an 1850 use case file for the T4S chemistry , which we don't currently have.

[fvitt]

@lkemmons @tilmes
I may need some help with namelist settings for the T4S chemistry for 1850 compsets. A build namelist use case file is needed for T4S perpetual 1850 conditions. I can take an initial attempt creating the use case file.

[jedwards4b]

@fvitt Is there a use case for the HIST case? I could continue work on that compset while waiting for the 1850 use case.

[jedwards4b]

I think that there is: CAM_NML_USE_CASE: hist_trop_strat_ts4_cam7
I'll work on the HIST case while waiting for an 1850 use case.

[fvitt]

I think that there is: CAM_NML_USE_CASE: hist_trop_strat_ts4_cam7 I'll work on the HIST case while waiting for an 1850 use case.

Yes. Give that a try.

[fvitt]

@lkemmons @tilmes
This ext frc file does not include 1850:

/glade/campaign/cesm/cesmdata/inputdata/atm/cam/chem/emis/historical_ne30pg3/emissions-cmip6_SO2_aircraft_vertical_1750-2015_ne30pg3_c20231112.nc

I propose that we leave the aircraft emissions out of the 1850 use case. Does that seem reasonable?

[lkemmons]

Yes - there were no aircraft in 1850 so the emissions in the file are zero!

…

On Wed, Nov 13, 2024 at 4:30 PM Francis Vitt ***@***.***> wrote: @lkemmons <https://github.com/lkemmons> @tilmes <https://github.com/tilmes> This ext frc file does not include 1850: /glade/campaign/cesm/cesmdata/inputdata/atm/cam/chem/emis/historical_ne30pg3/emissions-cmip6_SO2_aircraft_vertical_1750-2015_ne30pg3_c20231112.nc I propose that we leave the aircraft emissions out of the 1850 use case. Does that seem reasonable? — Reply to this email directly, view it on GitHub <#1189 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AH5BH7MKIK25X6Z2TJSMXD32APOHZAVCNFSM6AAAAABRW5NDYKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINZVGAZTGMJTGI> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[fvitt]

@lkemmons Please review namelist settings in this test case:

/glade/derecho/scratch/fvitt/1850C_T4S_ne30pg3_test01/CaseDocs

[lkemmons]

I think the chemistry settings (emissions, megan, etc.) look ok. A side note - In all chemistry compsets we can remove 'ISOPNO3' from the wet and dry dep lists -- it is a short-lived radical, so there is no need to have it be deposited.

…

On Thu, Nov 14, 2024 at 9:55 AM Francis Vitt ***@***.***> wrote: @lkemmons <https://github.com/lkemmons> Please review namelist settings in this test case: /glade/derecho/scratch/fvitt/1850C_T4S_ne30pg3_test01/CaseDocs — Reply to this email directly, view it on GitHub <#1189 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AH5BH7MBCRNC3UILUFVQEG32ATIYJAVCNFSM6AAAAABRW5NDYKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINZWHE2DIMRUGA> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[peverwhee]

@fvitt do you have a final version of the use case(s) that I can grab?

[fvitt]

@fvitt do you have a final version of the use case(s) that I can grab?

Not yet. I am working through some details.