Bugfix/filter ps

[ClaraDraper-NOAA]

Description

Explicitly exclude stationPressure obs not being assimilated.

I have also added code to discard the T2m obs in adpsfc until we're ready to include them in the parallel tests.

Companion PRs

N/A

Issues

Resolves 2202

Automated CI tests to run in Global Workflow

• atm_jjob
• C96C48_ufs_hybatmDA
• C96C48_hybatmsnowDA
• C96_gcafs_cycled
• C48mx500_3DVarAOWCDA
• C48mx500_hybAOWCDA
• C96C48_ufsgsi_hybatmDA
• C48_ufsenkf_atmDA
• C96C48_hybatmDA

[Copilot]

Pull request overview

This PR updates the JCB-GDAS prepbufr observation templates to add additional obs prior filters aimed at filtering surface/upper-air station pressure observation types earlier in the UFO pipeline.

Changes:

• Add RejectList obs-type pre-filters for stationPressure in prepbufr_sfcshp, prepbufr_adpupa, and prepbufr_adpsfc.
• Add a “TEMPORARY” block intended to reject all airTemperature obs in prepbufr_adpsfc (currently implemented as a RejectList without where:).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
parm/jcb-gdas/observations/atmosphere/prepbufr_sfcshp.yaml.j2	Adds a RejectList pre-filter for stationPressure obs types.
parm/jcb-gdas/observations/atmosphere/prepbufr_adpupa.yaml.j2	Adds a RejectList pre-filter for stationPressure obs types.
parm/jcb-gdas/observations/atmosphere/prepbufr_adpsfc.yaml.j2	Adds a RejectList pre-filter for stationPressure obs types and introduces a new airTemperature rejection block.

Suppressed comments (1)

parm/jcb-gdas/observations/atmosphere/prepbufr_adpsfc.yaml.j2:420

• This RejectList block has no where: clause, which is inconsistent with other RejectList usage in this repo and is likely invalid configuration (or at best ambiguous). If the intent is to reject all airTemperature observations, use a Perform Action filter with action: reject so the behavior is explicit and schema-compliant.

  # TEMPORARY: REJECT ALL T OBS
  - filter: RejectList
    filter variables:
    - name: airTemperature

[ClaraDraper-NOAA]

Comparison of Ps obs errors after PR:

Comparison of Ps obs error before PR:

[ClaraDraper-NOAA]

Difference between GSI and JEDI surface pressure increment, before and after PR - for assimilation of adpsfc Ps.

[RussTreadon-NOAA]

Manually add the changes from the PR to the WCOSS2 prjedi $HOMEglobal/sorc/gdas.cd/parm/jcb-gdas/observations/atmosphere/

Test changes in 2026080312 gdas cycle. Initial run of gdas_atmanlinit failed while rendering prepbufr_adpsfc.yaml.j2. See comment for additional detail. gdas_atmanlinit ran to completion after making a small change to prepbufr_adpsfc.yaml.j2.

Will run label-based GDASApp CI on Ursa. It's possible some reference test files will need to be updated since this PR changes which ps observations are assimilated.

[emcbot]

Automated GW-GDASApp Testing Results:
Machine: ursa

Start: Mon Aug  3 19:48:57 UTC 2026 on ufe03
---------------------------------------------------
Build:                                 *SUCCESS*
Build: Completed at Mon Aug  3 20:03:03 UTC 2026
---------------------------------------------------
Tests: ctest -j12 -R gdasapp -E atm_jjob|C96C48_ufs_hybatmDA
Tests:                                 *SUCCESS*
Tests: Completed at Mon Aug  3 21:02:43 UTC 2026
Tests: 100% tests passed, 0 tests failed out of 125