Notes taken by Lindsey Mattson

Infrastructure

• Tropomi NO2 and CO were added to the observation ingest suite, and AMSR/2 will be added soon.
• With the help of Clementine and the ALGO team, JEDI ctests were integrated into the Skylab workflow and can be run with EWOK & Skylab on HPCs. More documentation to come.
• R2D2: Final development work on client/server architecture test release. Eric will present R2D2 at the International Conference on Computational Science in Spain on Tuesday and is currently finishing up his presentation. R2D2 co-author Tariq Hamzey from the GMAO will be attending virtually
• I have an updated spack-stack 1.7 site config for the parallel-cluster, this was necessary both because of the spack-stack release and because we have updated our parallel cluster environment to Ubuntu 22.04 / PCluster 3.7.1

Models Interface

- Liam visited Boulder, spent the week on onboarding and discussions

- met with UKMO and ECMWF to learn about atlas's GPU capabilities; we're currently exploring further to see if these capabilities will meet our needs

Algo

Work on allowing different outer loops to be run as separate executables is progressing with Tom Hill at the met office. This is aimed at both improved HTLM testing as well at continuous DA.

Christian is also working on adding multiple outer loops as well as the ability to use the general OOPS:PesudoModel in Skylab with ensembles and with the HTLM

Clémentine is working with NASA to build geos and jedi their way (the nasa way) and our way, to get some crucial exchange of data between the model and JEDI going (needed for any in-core applications without having to go through IO) --> very good progress on this last week.

We are also having constructive conversations on how to handle the propagation of an increment to all derived variables (not necessarily assimilated, but affected still example ps is assimilated, and delp should be updated too) (edited) 

For IODA:

BUFR reader PRs have been merged introducing the capability to construct ObsSpace objects directly from BUFR files

A PR is under review that enables the IODA reader to ingest multiple input files for the construction of a single ObsSpace object

Good progress with implementation of the new ObsDataFrame memory container. Phil's PRs are under review and once merged will complete the initial implementation of the ObsDataFrame class. Phil and SteveH are making progress on the next step which is to create a translation layer to connect the ObsSpace API to the ObsDataFrame API. Once that is completed the following step is to test and profile the new ObsDataFrame container.

Finished & merged a big update to the B-Matrix training suite to make it more flexible

Opened a PR in MPAS-JEDI that adds a test using spectral blocks to do a single-scale ensemble localization

Starting to work on a 3denvar mpas experiment that uses the same single-scale spectral ensemble localization

Steve V.: Designing an enhancement to VADER Linear Variable Changes, which will allow distinct definition of Trajectory variables and increment variables

Obs

ingest:

cleanup of snow cover fraction converter completed,, finished with update to the README thanks to Youlong from NOAA

VIIRS L1B converter for albedo being finalized by Shih-wei capability being used for aerosol by COMPO team but obviously has other applications

CloudSat decoder from Isaac Moradi at NASA being integrated, initial prototype in a draft PR some consolidation and organization and clean-up being performed should be ready in couple of weeks

UFO:

Anna S. completed the addition of an action that can be performed on PRE filters only, this action will remove the observation from the ObsSpace and memory footprint , no GeoVals will be retrieved.  Goes without saying any check that required GeoVal cannot use this action.

Fabio has a draft PR on handling zero locations with variable transforms that derive variables.  Joanne Waller has given this a precursor review, we are making sure there's not already an existing way to handle this correctly before promoting from draft state.

UFO PR #3343 adds a limited area model domain mask to potential GeoVals retrieved for an observation location.  This handles observations at the domain edge boundaries

Compo

• Improve cycling with GSDF
• Cycling using FD ensemble
• VIRS  converter

SOCA

• Hybrid TLM implementation
• Submitted proposal to assimilate PACE data

EMC

• Implementation and testing
• Hurricane test cases

GMAO

• Various debugging comparing another cycle to GSI
• Discussion regarding pre and post bias correction output and optimization

MetOffice

• Regional trials of obs processing
• Land obs processing work started
• Regional DA plan approved for fall start

Navy

• Looking to move to less preprocessed data using UFO instead for preprocessing
• Model updates