Announce: Atmosphere Working Group

Atmosphere Working Group
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Atmosphere WG meeting 29.07.2026

For a calendar invite, simply click on the relevant calendar link below

Agenda:

  1. Admin: Volunteer for taking today’s meeting minutes to post here on the Forum.

  2. ACCESS Community updates: (5mins)
    Introduce Bethan White, W21C, our recently appointed Atmosphere WG co-chair

  3. Progress using ACCESS-rAM3 for the Sub-hourly Extreme Precipitation (SHEP) Project Sam Dahl and Leena Sanjay Khadke, Centre/UNSW (15+5mins)
    The SHEP project aims to use coordinated convective-permitting regional climate downscaling experiments to investigate past case events of short-duration extreme rainfall over eight Australian cities and Auckland. ACCESS-rAM3 is one of the models being used by members from the ARC Centre for Weather of the 21st Century, and evaluation of its performance for the case events is ongoing. Initial results over Sydney and Melbourne show that the model produces the extreme rain events with good accuracy, however some interesting nuances exist. Several of these nuances will be presented, as well as ongoing efforts to benchmark the simulations, and pseudo-global warming (PGW) simulations which aim to simulate the case events in a warmer climate.

  4. ACCESS-AM3 evaluation (N512): need your help! Pao Corrales (10+5mins)

    • 21st Century Weather now has a 2-year high-resolution ACCESS-AM3 (N512) and needs your help to evaluate the model by writing and sharing code! See the list of potential figures/analyses that we need volunteers to write/share code on this AM3-evaluation GitHub repository.
    • Pao will give a demo of a typical Git workflow to contribute a script (clone, add file, commit and push) and also how to upload a file from the web interface, including pros and cons.
    • AM3-evaluation meeting 10:30 on 4 Aug to discuss AM3 N512 vs N96 analysis, including a tutorial of how to contribute scripts on the AM3-evaluation GitHub repository.

  5. ACCESS Community Workshop: Connecting Machine Learning to Earth System Science Melbourne, 19-21 Aug 2026. Heidi Nettelbeck (5mins)
    :backhand_index_pointing_right: Register now | :eyes: Full program

    • Atmosphere WG annual meeting: at 15:30-16:15 on 20 August (Day 2)
      Agenda: ideas/discussions:
      • How can we develop our community to better share ML techniques and expertise?
        e.g., invited talks at Atmosphere and ML WG meeting

  6. ACCESS Community Workshop on Land and Coupled Modelling Melbourne, 31 Aug - 2 Sep 2026. Heidi Nettelbeck (5mins)
    :backhand_index_pointing_right: Register now | :eyes: Full program

    • AM3 using cylc8 training
    • Hackathon: CMIP7 and analysis of evaluation ACCESS models ESM1.6 , CM3 and AM3

  7. Ask the community?? :thinking: Sonya Fiddes (5mins)
    Do you have a research question that you’ve exhausted ideas to find an answer to?
    Here’s your chance to ask our Atmosphere community for their ideas!

  8. Compute/storage resources: Heidi Nettelbeck (2mins)
    Any experiment proposals for Q3/2026 (2 MSU allocation)?
    → See here for how to apply for Atmosphere WG Resources.

  9. Next Atmosphere WG meeting: ML/Atmosphere ACCESS Workshop on 20 August 2026