Yannick: no special announcements

JEDI/Algo -- Anna

Upcoming merges:

• Feb 8th: Removal of stripack from the unstructured interpolation, using mesh connectivity now https://github.com/orgs/JCSDA-internal/discussions/99
• Removal of variable change from FGAT; new constructor for State (expected merge Feb 13th)
• Simplification of specification of variables for coupled H(x)

Ongoing work:

• WIP: B matrix training workflow in ewok
• Discussion about using BUMP for small scales: updates to code and documentation to clarify the limitations.
• Snow 2DVar: optionally using masks and orography for vertical correlations in fv3-jedi
• Implementation of linearized H(x) for LETKF and simple tests.
• Coupled model (empty class for now) for fv3 + mom6 (can be used e.g. to call UFS)

Q from Hernan: prospects for generic interpolation for resolution changes? Francois H: coming ahead, probably for increments first in a quarter or two, states TBD.

JEDI/Infra -- Dom

R2D2

• scope out REST API work, develop pilot code
• speed up scrubbing of expired experiments, run manually for now, put in cron soon
• implement experiment naming convention

spack-stack

• geos
  • requires spack-stack update from spack develop
  • run on AWS ParallelCluster (gnu) and macOS (apple-clang) with spack-stack
• Working on building spack-stack with intel oneapi 2024.0.2
  • no more icc, icpc - but still have ifort in addition to ifx for about a year

CI

• working on resolving remaining CI failures in new CI

ufs-bundle

• updates of fv3-jedi - now use develop in ufs-bundle

SOCA -- Travis

• Kriti: marine-UFS almost working for cycling 3dvar in skylab, - forecast runs now in skylab, tiny issues with incorrect fcst length and such remain
• 4DEnVAR should be working now (if NOT using parallel time windows)
  • Anna fixed bug with non-parallel time windows
  • parallel time windows does NOT work for soca due to issues with how the ADT obs operator works
• Have a diffusion operator for localization, hope to start moving to saber next month
• I am (finally) putting together a soca tutorial to help users understand how to put together a 3dvar, 3denvar, and letkf

COMPO -- Maryam

• Cleaning up the forecast task in ewok with cycling for geos-cf (PR in Skylab)
• Adding a 4dvar experiment with geos-aerosol (Draft PR in Skylab and Ewok). The next step is adding htlm for compo
• finishing tempo 3DFGAT demonstration
• tuning B matrix for c360 var minimization for trace gas
• helping Hongli Wang (NOAA/GSL) with the implementation of vader transform for aerosols
• starting draft for composition paper with COMPO team
• working on AOP planning

OBS -- Francois V

• Last week, we merged a UFO PR (#3151) from Hailing and Neill (UK MetOffice), in which some of the hard coded QC procedures were moved from the Fortran code into obs filters and functions that can be activated from YAML configuration files.
• Sam has written a IODA converter to ingest ocean wind speed from the NASA CYGNSS mission, as well as from other missions from the private sector.
• There's a PR in UFO (#3173) with a simple obs function to assimilate wind speed only. 

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EMC

• finishing touches to UFO validation end-to-end testing

UKMO

• obs proc, progress on regional models: sondes are trialing; surface clouds and aircraft are ready for trialing
• DA side, first iteration of lfric-jedi should be ready in a few months; working to interfacing the TLM
• 3dvar cycling suite performing comparably to previous system; some problems with var changes in saber
• good progress towards ensemble B
• prioritizing 4dvar for cycling suite, hybrid tlm, hybrid B

ROMS

• work debugging new interpolator