meeting notes by Hui Shao (to be completed)

OBS:

Ingest:

• working on land converters for snow and smap consolidating and ensuring conventions and units are appropriate
• finishing a weather-sat-followon WSF-M converter with NRL
• also with NRL have a new contributor and have added conventions to ObsSpace.yaml for TEC and ECEF coordinates
• finished adding error estimates and quality flags from OceanSurfaceWind products into IODA files for data from CYGNSS and Spire

UFO:

• merged lightning flash extent density operator
• merged last PR for EUMETSAT ROM-SAF project (thank-you MetOffice and Neill Bowler) for MeteoFrance style super refraction check
• merged new ObsFunction from Met Office PR from ChawnHarlow to multiply and/or divide ObsDataVectors
• merged VarBC sprint. We realized such a merge needs to be streamlined in the future (code, data, r2d2, etc) and noticed the current CI tests might not catch all potential issues. Therefore, please report any issues you may be encountering. We'll provide as much support as we can. 

JEDI:

Model Interface:

- Improving robustness of interpolators for the structured grids used in SABER

SOCA:

We moved the soca-specific diffusion saber central block into a generic code in oops/saber. PRs are open now for that. This has been tested with FV3 and SOCA and seems to be working well. It is NOT working for ROMS and MPAS due to an issue with atlas mesh generation. When finished this is a good alternative to BUMP_NICAS for those with very small length scales.

NOAA: 

GFS-17:

• Testing Travis’s Diffusion correlation operator in for Aerosols
• Real time conventional observations for marine.
• SMAP soil moisture IODA converters

Regional (RRFS V2)

• Continuing to work on MGBF in Saber. Following the GSIbec setup. Unstructured interpolation.
• PR adding Vader to MPAS-JEDI.
• Looking at ways of rejecting obs outside the domain.

Atmospheric DA

• Still looking at excessive memory use by LETKF.
• Stress testing filters when no observations present.
• Can pass cubed sphere increments back to UFS.
• Continued work on JCB, not part of global workflow.

AI/ML

• Reviving the MAGIC JEDI interface with a view to interfacing NeuralGCM / GraphCastGFS to JEDI.

UFO acceptance: 

• GPSRO still working on geoval inconsitency
• Sat winds: PR Submitted for LEO-GEO winds in end-to-end framework. working on others
• ABI radiance: Phase 1 testing replicates GSI with GSI geovals
• ADPUPA: A Python converter is finished. Now working on comparison between BUFR and prepBUFR
• AIRCFT Prepbufr end-to-end: tracking down why std dev difference is large

GMAO:

• We are looking to understand why the latest VarBC changes introduce unexpected differences in the results of running the var; these are more roundoff that would be caused by the precision of coefficients in the old and new formats not been preserved.
• We are working to do a very close comparison between GSI and JEDI geovals and clear out differences that seem more than acceptable.

NCAR:

reported an issue when we run mpas-jedi in 4DEnVar mode: it will fail if we turn on the output of geovals and ydiags files. Will create an issue for this and seek the solution.