Yannick opened the meeting. He said that, after today's meeting, we'd like to use an AI note-taker software to generate these meeting notes. He asked anyone who had concerns with this to contact him.

INTERFACE - Steve H.

• Thanks to NOAA and the Met Office for testing the OSDF based ObsSpaces in their workflows. The feedback we have received is extremely helpful as we work toward feature parity with the current ObsGroup based ObsSpaces.
• The IODA writer using OSDF based ObsSpaces is nearing its initial implementation. Expect a PR this week and a second PR next week to complete this work.

INFRA - Evan

• Spack-stack 2.1 is now available on some platforms.
• There's issues when using 2.1 with fv3-jedi-lm and soca because of fms

ALGO - Travis

• The sequential ensemble kalman filter has a bunch of PRs in Jedi, interested people should look at it. It's kinda cool if you're into that sort of thing. Have fun.

OBS - Francois V. & Hui

IODA converter:

create a IODA decoder for MTG IRS #1749

Update to the METAR decoder, applying IODA conventions for airTemperatureAt2M. #1754

Merging shuffle and deflate code from NCAR MMM #1748

Adding Shuffle and Deflate option to compress files just like in GNSS_RO, this was added to the recent updates and refactor provided by Andy Stokely https://github.com/NCAR/obs2ioda/ NCAR MMM obs2ioda decoder.

UFO:

Fix azimuth convention and TL/AD consistency in RadarRadialVelocity operator

#4019. Thanks to NCAR MMM.

RTTOVOneDVar: Provide consistent output for OneDVar/transmittance

#4017. Thanks to the UKMET.

JCSDA has been assisting NOAA EMC in their comparison of the GNSS-RO operators and error models, and corrected some documentation issues along the way.

Space Weather:

Cam-JEDI is now added to JCSDA-internal

Placeholder repo for MSIS-HWM-JEDI

Ongoing effort to build JEDI skylab workflow to run PyIRI, JEDI and Gauss-Markov Model (forecast)

CRTM - Ben J.

• In the middle of a modernization process for generating coefficients. Can run on a (beefy) PC.
• Working on CRTM 3.2 release.

EMC - Dan

PR in IODA regarding NaN’s in files for Lat/Lon.

A bunch of work for optimization for regional model. 100x speed up in one case.

Looking at FMS2 issues.

GMAO - Ricardo & Jerome

Looking at puzzles. Adjoint test around GSIbec is failing. He’s found a fix, and in some cases finds a very good match with GSI. Working on the other cases.

RO has its own difficulties. TL/AD of 3D pressures aren’t being passed.

BUFR to IODA: good progress.

Jerome - Working on Cycling 3DVar with Ozone

OAR -Ming

Working with Ben and Francios on PR for GNSSRO.

NRL - Dom

Issue with writing variable changes in OOPS

CRTM coefficients are getting moved around

MMM has agreed to take on Derecho spack-stack maintenance

MMM - BJ & Chris

Still working on using active sensors.

Work for MPAS version 8.4.

Looking to do a release of MPAS-JEDI in spring/summer. Will rely on MPAS 8.4 so Jedi-bundle will need update

UKMO - Dan Stone

• No report

ROMS - Hernan

No Report