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sima0_20_002: Add defaults for BAM aerosols in CAM4 F-compsets; support sim_year for climatological year - #545

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jimmielin merged 4 commits into
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jimmielin:hplin/cam4_bam_defaults
Aug 24, 2026
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sima0_20_002: Add defaults for BAM aerosols in CAM4 F-compsets; support sim_year for climatological year#545
jimmielin merged 4 commits into
ESCOMP:developmentfrom
jimmielin:hplin/cam4_bam_defaults

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@jimmielin jimmielin commented Aug 24, 2026

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Tag name (required for release branches): sima0_20_002
Originator(s): @jimmielin
AI tools used (if applicable; please also add the "AI-generated code" label to the PR):
What: Claude Code claude-fable-5, claude-opus-5
How: triaged rad_aer_climate issue. verified populated values matched CAM

Description (include the issue title, and the keyword ['closes', 'fixes', 'resolves'] followed by the issue number):
Companion PR to ESCOMP/atmospheric_physics#439

Describe any changes made to build system: see below; added CAM_SIM_YEAR support

Describe any changes made to the namelist: namelist defaults were updated to include BAM by default and fix UNSET/'' empty-string for rad_aer_ values

List any changes to the defaults for the input datasets (e.g. boundary datasets):

List all files eliminated and why:

List all files added and what they do:

List all existing files that have been modified, and describe the changes:
(Helpful git command: git diff --name-status development...<your_branch_name>)

M       cime_config/cam_config.py
M       cime_config/config_component.xml
M       test/unit/python/test_cam_config.py
  - support sim_year attribute for namelist defaults

M       cime_config/namelist_definition_cam.xml
  - add defaults for rad_aer_climate for CAM4

If there are new failures (compared to the test/existing-test-failures.txt file),
have them OK'd by the gatekeeper, note them here, and add them to the file.
If there are baseline differences, include the test and the reason for the
diff. What is the nature of the change? Roundoff?

derecho/intel/aux_sima:

  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_intel.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_intel.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_intel.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_intel: DIFF
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_intel.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_intel.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_intel.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_intel: DIFF
  - updates to namelist defaults to include BAM
  - for F1850, updates to atmos_phys namelist defaults for 1850 era GHGs and prescribed datasets

  SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 NLCOMP
  SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho_history (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho_history NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 NLCOMP

  SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam_multitape (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam_multitape NLCOMP
  - pre-existing failure requiring CIME update

  SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_intel.cam-outfrq_se_cslam_analy_ic (Overall: FAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_intel.cam-outfrq_se_cslam_analy_ic SETUP
  - pre-existing failure since PUMAS round 3 CAM-SIMA has not merged in registry chgs

derecho/gnu/aux_sima:

  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_gnu.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_gnu.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_gnu: DIFF
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_gnu.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_gnu.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_gnu: DIFF
  - updates to namelist defaults to include BAM
  - for F1850, updates to atmos_phys namelist defaults for 1850 era GHGs and prescribed datasets

  SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_beljaars_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_beljaars_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_dme_adjust_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_dme_adjust_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam4_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam4_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam7_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam7_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hack_shallow_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hack_shallow_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hb_vdiff_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hb_vdiff_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_held_suarez_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_held_suarez_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_kessler_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_kessler_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_microp_aero_bam_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_microp_aero_bam_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rk_stratiform_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rk_stratiform_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rrtmgp_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rrtmgp_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_after_coupler_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_after_coupler_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_before_coupler_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_before_coupler_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_trcdata_bam_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_trcdata_bam_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_uw_vdiff_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_uw_vdiff_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_zm_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_zm_derecho NLCOMP
  SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho_history (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho_history NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_gnu.cam-outfrq_se_cslam_analy_ic (Overall: FAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_gnu.cam-outfrq_se_cslam_analy_ic SETUP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
  - fix for 'UNSET' vs. '' (correct) rad_aer_climate and diag rads

derecho/nvhpc/aux_sima (test is run via Github workflow. Only run the test manually if we need to save new baselines):

  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_nvhpc.cam-outfrq_rrtmgp_derecho_gpu (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_nvhpc.cam-outfrq_rrtmgp_derecho_gpu NLCOMP
  - fix for 'UNSET' vs. '' (correct) rad_aer_climate and diag rads

If this changes climate describe any run(s) done to evaluate the new
climate in enough detail that it(they) could be reproduced:
Prescribed bulk aerosols now active for F-compsets of CAM4

CAM-SIMA date used for the baseline comparison tests if different than latest:

@jimmielin
jimmielin requested a review from nusbaume August 24, 2026 17:36
@jimmielin jimmielin self-assigned this Aug 24, 2026
@jimmielin jimmielin added the enhancement New feature or request label Aug 24, 2026
jimmielin added a commit to ESCOMP/atmospheric_physics that referenced this pull request Aug 24, 2026
Tag name (The PR title should also include the tag name):
Originator(s): @jimmielin verified by `claude-opus-5`

Description (include issue title and the keyword ['closes', 'fixes',
'resolves'] and issue number):
- Add defaults for `sim_year = 1850`. This attribute requires
ESCOMP/CAM-SIMA#545 companion PR.

List all namelist files that were added or changed:
```
M       schemes/chemistry/prescribed_aerosol_deposition_flux_namelist.xml
M       schemes/chemistry/prescribed_aerosols_namelist.xml
M       schemes/chemistry/prescribed_ozone_namelist.xml
M       schemes/radiation_utils/prescribe_radiative_gas_concentrations_namelist.xml
M       schemes/radiation_utils/solar_irradiance_data_namelist.xml
  - populate 1850 defaults 
```

List all files eliminated and why:

List all files added and what they do:

List all existing files that have been modified, and describe the
changes:
(Helpful git command: `git diff --name-status
main...<your_branch_name>`)

List all automated tests that failed, as well as an explanation for why
they weren't fixed:

Is this an answer-changing PR? If so, is it a new physics package,
algorithm change, tuning change, etc?

Yes, F1850 update

If yes to the above question, describe how this code was validated with
the new/modified features:

Co-authored-by: Haipeng Lin <hplin@ucar.edu>
@nusbaume
nusbaume requested a review from peverwhee August 24, 2026 18:00
@jimmielin
jimmielin requested a deployment to CI-tests-on-CIRRUS August 24, 2026 18:00 — with GitHub Actions Waiting
@jimmielin jimmielin changed the title Add defaults for BAM aerosols in CAM4 F-compsets; support sim_year for climatological year sima0_20_002: Add defaults for BAM aerosols in CAM4 F-compsets; support sim_year for climatological year Aug 24, 2026
@jimmielin
jimmielin merged commit 8246e4f into ESCOMP:development Aug 24, 2026
23 of 24 checks passed
nusbaume pushed a commit to nusbaume/CAM-SIMA that referenced this pull request Aug 28, 2026
…rt sim_year for climatological year (ESCOMP#545)

Tag name (required for release branches): sima0_20_002
Originator(s): @jimmielin
AI tools used (if applicable; please also add the "AI-generated code"
label to the PR):
  What: Claude Code `claude-fable-5`, `claude-opus-5`
How: triaged rad_aer_climate issue. verified populated values matched
CAM

Description (include the issue title, and the keyword ['closes',
'fixes', 'resolves'] followed by the issue number):
Companion PR to ESCOMP/atmospheric_physics#439

Describe any changes made to build system: see below; added
`CAM_SIM_YEAR` support

Describe any changes made to the namelist: namelist defaults were
updated to include BAM by default and fix UNSET/'' empty-string for
rad_aer_ values

List any changes to the defaults for the input datasets (e.g. boundary
datasets):

List all files eliminated and why:

List all files added and what they do:

List all existing files that have been modified, and describe the
changes:
(Helpful git command: `git diff --name-status
development...<your_branch_name>`)
```
M       cime_config/cam_config.py
M       cime_config/config_component.xml
M       test/unit/python/test_cam_config.py
  - support sim_year attribute for namelist defaults

M       cime_config/namelist_definition_cam.xml
  - add defaults for rad_aer_climate for CAM4
```

If there are new failures (compared to the
`test/existing-test-failures.txt` file),
have them OK'd by the gatekeeper, note them here, and add them to the
file.
If there are baseline differences, include the test and the reason for
the
diff. What is the nature of the change? Roundoff?

derecho/intel/aux_sima:
```
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_intel.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_intel.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_intel.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_intel: DIFF
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_intel.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_intel.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_intel.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_intel: DIFF
  - updates to namelist defaults to include BAM
  - for F1850, updates to atmos_phys namelist defaults for 1850 era GHGs and prescribed datasets

  SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 NLCOMP
  SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_intel.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho_history (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_intel.cam-outfrq_kessler_mpas_derecho_history NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_intel.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_intel.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_intel.cam-outfrq_se_cam4 NLCOMP

  SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam_multitape (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_intel.cam-outfrq_se_cslam_multitape NLCOMP
  - pre-existing failure requiring CIME update

  SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_intel.cam-outfrq_se_cslam_analy_ic (Overall: FAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_intel.cam-outfrq_se_cslam_analy_ic SETUP
  - pre-existing failure since PUMAS round 3 CAM-SIMA has not merged in registry chgs
```

derecho/gnu/aux_sima:
```
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_gnu.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F1850_C4.derecho_gnu.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_gnu: DIFF
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_gnu.cam-outfrq_se_cam4 (Overall: DIFF) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.F2000_C4.derecho_gnu.cam-outfrq_se_cam4 BASELINE /glade/campaign/cesm/community/amwg/sima_baselines/latest_gnu: DIFF
  - updates to namelist defaults to include BAM
  - for F1850, updates to atmos_phys namelist defaults for 1850 era GHGs and prescribed datasets

  SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_D_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_beljaars_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_beljaars_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_dme_adjust_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_dme_adjust_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam4_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam4_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam7_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_gw_cam7_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hack_shallow_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hack_shallow_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hb_vdiff_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_hb_vdiff_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_held_suarez_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_held_suarez_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_kessler_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_kessler_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_microp_aero_bam_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_microp_aero_bam_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rk_stratiform_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rk_stratiform_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rrtmgp_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_rrtmgp_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_after_coupler_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_after_coupler_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_before_coupler_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_tj2016_before_coupler_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_trcdata_bam_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_trcdata_bam_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_uw_vdiff_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_uw_vdiff_derecho NLCOMP
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_zm_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_gnu.cam-outfrq_zm_derecho NLCOMP
  SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa120_mpasa120.QPC4.derecho_gnu.cam-outfrq_analy_ic_cam4 NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho NLCOMP
  SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho_history (Overall: NLFAIL) details:
    FAIL SMS_Ln9.mpasa480_mpasa480.FKESSLER.derecho_gnu.cam-outfrq_kessler_mpas_derecho_history NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_gnu.cam-outfrq_se_cslam_analy_ic (Overall: FAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.F2000_C7.derecho_gnu.cam-outfrq_se_cslam_analy_ic SETUP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FADIAB.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FHS94.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FKESSLER.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_gnu.cam-outfrq_se_cslam (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mg37.FTJ16.derecho_gnu.cam-outfrq_se_cslam NLCOMP
  SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 (Overall: NLFAIL) details:
    FAIL SMS_Ln9.ne3pg3_ne3pg3_mt233.QPC4.derecho_gnu.cam-outfrq_se_cam4 NLCOMP
  - fix for 'UNSET' vs. '' (correct) rad_aer_climate and diag rads
```

derecho/nvhpc/aux_sima (test is run via Github workflow. Only run the
test manually if we need to save new baselines):
```
  SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_nvhpc.cam-outfrq_rrtmgp_derecho_gpu (Overall: NLFAIL) details:
    FAIL SMS_Ln2.ne3pg3_ne3pg3_mg37.FPHYStest.derecho_nvhpc.cam-outfrq_rrtmgp_derecho_gpu NLCOMP
  - fix for 'UNSET' vs. '' (correct) rad_aer_climate and diag rads
```

If this changes climate describe any run(s) done to evaluate the new
climate in enough detail that it(they) could be reproduced:
Prescribed bulk aerosols now active for F-compsets of CAM4

CAM-SIMA date used for the baseline comparison tests if different than
latest:

---------

Co-authored-by: Haipeng Lin <hplin@ucar.edu>
nusbaume pushed a commit to nusbaume/atmospheric_physics that referenced this pull request Aug 28, 2026
…P#439)

Tag name (The PR title should also include the tag name):
Originator(s): @jimmielin verified by `claude-opus-5`

Description (include issue title and the keyword ['closes', 'fixes',
'resolves'] and issue number):
- Add defaults for `sim_year = 1850`. This attribute requires
ESCOMP/CAM-SIMA#545 companion PR.

List all namelist files that were added or changed:
```
M       schemes/chemistry/prescribed_aerosol_deposition_flux_namelist.xml
M       schemes/chemistry/prescribed_aerosols_namelist.xml
M       schemes/chemistry/prescribed_ozone_namelist.xml
M       schemes/radiation_utils/prescribe_radiative_gas_concentrations_namelist.xml
M       schemes/radiation_utils/solar_irradiance_data_namelist.xml
  - populate 1850 defaults 
```

List all files eliminated and why:

List all files added and what they do:

List all existing files that have been modified, and describe the
changes:
(Helpful git command: `git diff --name-status
main...<your_branch_name>`)

List all automated tests that failed, as well as an explanation for why
they weren't fixed:

Is this an answer-changing PR? If so, is it a new physics package,
algorithm change, tuning change, etc?

Yes, F1850 update

If yes to the above question, describe how this code was validated with
the new/modified features:

Co-authored-by: Haipeng Lin <hplin@ucar.edu>
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