Page History

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• Work in progress with 4DVar, HTLM

OBS - BenR

Github discussion (
• The following PRs were recently merged or require review:
  • OBS processing (ioda-converters)
    • GNSS ground-based zenith total delay
      • PR #1643: 
• • • • https://github.com
/orgs
• • • • /JCSDA-internal/
discussions/171) for extending the ground based radar operatorsOcean surface wind converter (GNSSR, COWVR)
• • • • ioda-converters/pull/1643
    • Converter for COWVR for the NASA STPH8 mission ocean surface wind product
      • PR #1647: https://github.com/JCSDA-internal/ioda-converters/pull/1647
        
      • Ashley helped out with the COWVR radiance ingest suite
      • This provides a nice guide for further ingest suite development
    • Ufo-data SSMIS unit test
updates
• Ncdiag converter updates including a fix for an issue with azimuth angle metadata
• Contributions from partners:
  • Mean gaussian filter which can be used for actions such as super-obb'ing
  • Work in progress to reduce spatial density of GeoVaLs
  • Various UFO bug fixes from Jianjun

CRTM - Cheng

• • • file, GSI ncDiag double check your converter as the ctest file was all configured for incorrect predictor.
      • PR #3681: https://github.com/JCSDA-internal/ufo/issues/3681
  • UFO:
    • Mean on gaussian thinning filter, the primary purpose is to act as a superobbing filter
      • PR #3656: https://github.com/JCSDA-internal/ufo/pull/3656
    • Observation operator that reduces the spatial density of requested GeoVaLs
      • PR #3657: https://github.com/JCSDA-internal/ufo/pull/3657

CRTM - Cheng

• CRTM V3.2, final check for all instrument coefficients in netCDF format.
• New coefficients generation for PACE
• Bug fix:
  • azimuthal-dependent calculation for CRTM Jacobians (visible channels)
  • surface emissivity Jacobians (UFO QC tests)
• Final check for instrument coeff. in netcdf format
  • Once this is complete, we will be ready to assemble the 3.2 release
• New coeff. gen for PACE - visible channels
  • COMPO will be one of the first users to try this out
• Various bug fixes
  • Azimuthal Jacobian for visible channels
  • Surface emissivity Jacobian
Various ctest updates

NOAA-EMC - Dan

• Focus is on testing and qualifying flows including ones that use JEDI
  • Realtime runs
  • Reproducibility checks
    • Good results in general
    • Some obs types are showing poor results and are being investigated
      • H(x) differences of 10's of Kelvin, has some dependency on the number of MPI tasks being used
    • Plan moving forward is to dump out quantities in single precision and call it good when differences are within roundoff errors
  • Qualification with entire workflows in underway
• Cleaning up the build processes including eliminating forked repos (eg, MOM6)
• Moved to spack-stack-1.9.1
  • Ron's parallel BUFR reader PR has been waiting for spack-stack-1.9.1 and is now ready for review

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• Developing/updating reference configs for workflows
• Prep for MPAS-JEDI tutorial scheduled for this June in Scotland
• Updated obs2ioda converter to directly output IODA V3 format
• Working on hourly cycling in DA flows

Met Office - MikeC

• We don't have any updates from the UKMO this week which were not part of the quarterly review.
  • We have had bank holidays over the easter period. 
• In terms of general work:

  • We continue to implement JEDI operationally for the observation processing and the trialing looks good

    • This is planned for operational implementation at the end of 2025  

  • We are currently testing working on HTLM, hybrid-B, multi resolution testing in preparation for our next generation HPC benchmarking exercise

    • Due later in 2025

OAR - no update

ROMS - HernanA

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