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Move co2diag from 3hourly to daily for CPLHIST mode#402

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ekluzek wants to merge 2 commits intoESCOMP:mainfrom
ekluzek:cplhist_co2diag_on_24hr_avg_file
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Move co2diag from 3hourly to daily for CPLHIST mode#402
ekluzek wants to merge 2 commits intoESCOMP:mainfrom
ekluzek:cplhist_co2diag_on_24hr_avg_file

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@ekluzek ekluzek commented Apr 15, 2026

Description of changes

In order to synchronize with how the CPLHIST output files are handled in the latest CMEPS, this move the reading of co2diag from the 3-hourly file to the daily file. It also

Specific notes

Contributors other than yourself, if any: @billsacks

CDEPS Issues Fixed (include github issue #):
Fixes #400

Are there dependencies on other component PRs (if so list):
Needed for CDEPS to work with output using cmeps1.1.35

Are changes expected to change answers (bfb, different to roundoff, more substantial):
Answers for CPLHIST will be different and greater than roundoff, but it also didn't work previously

Any User Interface Changes (namelist or namelist defaults changes):
Add cplhist mode as an option to DATM_CO2_TSERIES
Remove co2diag from CPLHIST for the 3hourly stream file
When cplhist mode is used in DATM_CO2_TSERIES use the daily file

Testing performed (e.g. aux_cdeps, CESM prealpha, etc): So far running a case on Derecho_intel
Will run aux_cdeps

Hashes used for testing:

Definition of Done:

  • Add some tests for this to aux_cdeps testlist
  • Run aux_cdeps compared to the cesm3_0_beta08 baselines

…e to the CO2 stream for a 24 hour avg file fixing ESCOMP#400
@ekluzek ekluzek added enhancement New feature or request CESM Only Responsibility: CTSM Responsibility to manage and accomplish this issue is the CTSM Software group labels Apr 15, 2026
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CESM Only enhancement New feature or request Responsibility: CTSM Responsibility to manage and accomplish this issue is the CTSM Software group

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CPLHIST cases for DATM do NOT work from latest CMEPS coupled cases because co2diag is no longer output the same way

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