Meeting Minutes 2025: Atmosphere Working Group

Atmosphere Working Group
6

Atmosphere WG Meeting 04.06.2025 minutes

18 participants on Zoom.

  1. Brief update for WG co-chairs:

  • Yi Huang (Uni Melb)

    • Updates from the Hackathon in Canberra last month- over 250 participants with many international
    • Involved exploring high-res modelling data
    • 10 projects were proposed and led by ECRs covering a range of topics, e.g. extreme precipitation
    • Updates on the flagship experiment from Paul Gregory:
      • Based on ACCESS-rAM3
      • Details on Cumulus
      • 12 km outer domain – same as the BARRA-2 domain
      • 5 km domain over Australia and surrounding oceans
      • 1 km domain over south-east Australia
      • Computing: 15 ksu to run 5 hours
      • Adding urban information inside the 1 km domain
      • Contact Paul if you want to run any experiments

  • Charmaine Franklin (BoM)

    • Preparing for next week’s workshop; some topics will involve data assimilation, machine learning
    • Implemented nested suite, LFRic and UM at NCI
    • ACCESS-A/AE development updates, LFRic will replace the UM
    • Moving to a new data centre

  • Heidi Nettelbeck

    • Currently 2 PhD student interns at NRI; Jemma Jeffree working with ACCESS-CM3
  1. Supported reference datasets update by Clare Richards

  • By mid-2027 overall storage should increase by 2 PB

  • ACCESS-NRI provide merit-based support for data storage and sharing, working with the community

  • Framework and procedures for dataset management being developed

  • Support for both curated and ‘sandboxed’ (short-term/fixed duration) datasets

  • Data request processes being streamlined

  • Flagged: High priority datasets for the community should be communicated to NCI

    Discussion
    Atmosphere WG data requests

    • Group 2
      • UM nudging based on ERA5 at n96 resolution next priority
      • AGCD provided by NCI is a delayed release rather than real-time → comment by Yi that some users may require real-time data
    • Group 3 (global radiosonde data- IGRA) requires someone to actively manage this dataset
    • Group 4 data requests considered complete with no further actions
    • Comment by Charmaine: Suggest training for the community on how to access BoM data
  1. ACCESS Workshop 2025 (8-12 September) by Heidi Nettelbeck and Paige Martin
  • Abstract submissions now open!!! Close on 15th June 2025.

  • Paige on Atmosphere WG meeting Friday 12th September agenda:

    • Could do a hands on atmosphere recipe/cookbook session, e.g., how notebooks can be added to Github and reviews
    • Note that questions on how the atmosphere cookbooks can be organised by the community, and who reviews or accepts them needs further discussion.
    • Suggest a virtual training for Git prior to the workshop

    Discussion on WG meeting day agenda (12 Sep)

    • Comment by Scott Wales: the Met office has created some git resources which could be used that can be found here
    • Comment by Matthew Lipson:
    • Could use the opportunity like a mini-hackathon to work on new collaborative projects
    • Bec: interested in best practices for git/github session
    • Charmaine: science talks
    • Please post any other ideas for our WG meeting day on the forum.

  1. ACCESS-NRI 2025/6 Workplan by Heidi Nettelbeck

    Following areas were discussed:

    • Atmosphere model (ACCESS-AM3) beta release
    • ACCESS-rAM3
    • Coupled model ACCESS-CM3 and ACCESS-ESM3
    • Ancillary suites and tools
    • Training and Engagement

    Discussion

    • Comment by Charmaine: future development work at BoM and Met office focusing on LFRic
    • Paul: Does NRI have plans to support regional coupling capability, e.g., regional ACCESS-CM3? as W21C have plans to use this next year.

  2. Reminder to setup AAF authentication on Hive

  3. Next Atmosphere WG meeting: July 2025 date TBC

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