Announce: Atmosphere Working Group

Atmosphere Working Group
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32

Atmosphere Working Group Meeting 12.02.2025

** 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. Science talk (15+5mins)

    • Free-running tests with the NRI-version of the Regional Nesting Suite by Matt Lipson
      Matt will focus on the difference of using BARRA-R2 vs ERA5-LAND initial conditions when running the NRI-version of the UKMO Regional Nesting Suite. He will also touch on the use of OSTIA extensions as well as go through model outputs and possible ways to convert these to netcdf.

  3. Tech talk (15+5mins)

    • An introduction to ACCESS-Vis: Visualisation tools released to date and current work in progress by Owen Kaluza
      Own will give a brief introduction to the ACCESS-Vis and ACCESS-Visualisation-Recipes releases. These projects aim to make rendering 3D high-res visualisations and animations easier and more accessible within the Jupyter Notebook environment.
      Owen will also cover some more complex example visualisation outputs created using these tools, including a work in progress from atmospheric data sets such as AUS2200.

  4. 2025 ACCESS Workshop: Heidi Nettelbeck (5-10mins)
    Plan is to have parallel science talk sessions. Co-chairs need our input of what we’d like to see in the program. Any Ideas?

  5. Compute/storage resources - Atmosphere WG: Heidi Nettelbeck
    Any Experiment proposals for Q1/2025? → 875 kSU allocation
    → See here for how to apply for Atmosphere WG Resources.

  6. Next Atmosphere WG meeting:
    March 2025

33

Atmosphere WG meeting 19.03.2025

** 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. Brief update from WG co-chairs and ACCESS-NRI: Yi Huang, Charmaine Franklin, Matt Woodhouse, Heidi Nettelbeck (5mins)

  3. Poll on potential training topics for ACCESS 2025 Workshop Jasmeen Kaur (5mins)

  4. Science talk: (15+5mins)

    • Added value of regional climate models over Australia by Christian Stassen
      Regional climate models (RCMs) are intended to improve global climate model (GCM) projections by providing more detailed regional and local climate change projections. However, RCMs have their own biases and limitations. An ensemble of RCM projections, produced for the Australian Climate Service, was analysed to assess its added value in predicting extreme weather events. This work reports on the added value analysis of this CORDEX-CMIP6 ensemble, with focus on how well and where it provides better information for cold, hot, wet and dry extremes.

  5. Tech talk: (10+5mins)

    • Running the ACCESS / UM for beginners by Paul Gregory
      W21C has developed training materials to help the community run atmospheric experiments using the Unified Model (UM). These materials begin with basic cylc and rose tutorials, followed by a basic rose/cylc suite, and then a minimum working example of a functioning atmospheric UM suite. These materials should give new users sufficient skills and confidence to tackle the NRI-supported ACCESS suites for atmospheric experiments.

  6. AM3 development & configurations: Martin Dix, Matt Woodhouse (5+10mins)
    ACCESS-NRI update on AM3 development followed by a discussion about which AM3 configurations would be useful to the Atmosphere community.

  7. rAM3 beta release: ACCESS-NRI configuration of the UKMO RNS (end of March). Watch this space! Heidi Nettelbeck

  8. Compute/storage resources - Atmosphere WG: Heidi Nettelbeck
    Any Experiment proposals for Q1/2025? (875 kSU allocation). Can also use for testing development of ACCESS suites.
    → See here for how to apply for Atmosphere WG Resources.

  9. Next Atmosphere WG meeting:
    April 2025

34

ACCESS-NRI Training Day 2025
ACCESS-NRI Training Day 20251920×576 64.5 KB

Hi everyone!

To gather suggestions and ideas for potential training topics for the 2025 ACCESS-NRI Community Workshop (in Melbourne from 8-12 Sept.), the ACCESS-NRI training team has created a poll :triangular_flag_on_post: on the ACCESS-Hive Forum.

:woman_raising_hand: We would love to hear feedback from all community members about the training sessions they’d like to see this year!

There are 3 main ways to add or vote on the suggestions (similar to StackOverflow):
1. :check_box_with_check: Choose up to 10 options from the existing options on the poll.
2. :writing_hand: Add a new suggestion by hitting the Screenshot 2025-03-05 at 10.37.58 button.
3. ↑ You can also upvote any suggestion found in the replies.

We are looking forward to meeting you at the working group meetings as well :waving_hand: .

Please note that the poll will close on 2025-03-30T13:00:00Z.

Thanks heaps!
Jasmeen Kaur
ACCESS-NRI User Training Team

35

!! Reminder: Atmosphere WG meeting 19.03.2025

** 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. Brief update from WG co-chairs and ACCESS-NRI: Yi Huang, Charmaine Franklin, Matt Woodhouse, Heidi Nettelbeck (5mins)

  3. Poll on potential training topics for ACCESS 2025 Workshop Jasmeen Kaur (5mins)

  4. Science talk: (15+5mins)

    • Added value of regional climate models over Australia by Christian Stassen
      Regional climate models (RCMs) are intended to improve global climate model (GCM) projections by providing more detailed regional and local climate change projections. However, RCMs have their own biases and limitations. An ensemble of RCM projections, produced for the Australian Climate Service, was analysed to assess its added value in predicting extreme weather events. This work reports on the added value analysis of this CORDEX-CMIP6 ensemble, with focus on how well and where it provides better information for cold, hot, wet and dry extremes.

  5. Tech talk: (10+5mins)

    • Running the ACCESS / UM for beginners by Paul Gregory
      W21C has developed training materials to help the community run atmospheric experiments using the Unified Model (UM). These materials begin with basic cylc and rose tutorials, followed by a basic rose/cylc suite, and then a minimum working example of a functioning atmospheric UM suite. These materials should give new users sufficient skills and confidence to tackle the NRI-supported ACCESS suites for atmospheric experiments.

  6. AM3 development & configurations: Martin Dix, Matt Woodhouse (5+10mins)
    ACCESS-NRI update on AM3 development followed by a discussion about which AM3 configurations would be useful to the Atmosphere community.

  7. rAM3 beta release: ACCESS-NRI configuration of the UKMO RNS (end of March). Watch this space! Heidi Nettelbeck

  8. Compute/storage resources - Atmosphere WG: Heidi Nettelbeck
    Any Experiment proposals for Q1/2025? (875 kSU allocation). Can also use for testing development of ACCESS suites.
    → See here for how to apply for Atmosphere WG Resources.

  9. Next Atmosphere WG meeting:
    April 2025

36

Atmosphere WG meeting 30.04.2025

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. Brief update from WG co-chairs and ACCESS-NRI: Yi Huang, Charmaine Franklin, Matt Woodhouse, Heidi Nettelbeck (5mins)

  3. Science talk: (15+5mins)

    • Towards enhancing climate projections through improved understanding and simulations of marine low clouds Qinggang Gao
      The response of low clouds to warming is the greatest source of uncertainty in climate projections. Current global climate models at coarse resolutions struggle to represent clouds, particularly low clouds driven by shallow convection. Although global kilometer-resolution simulations may become feasible for climate projections by 2060s, higher resolution alone does not guarantee more accurate predictions. Building upon the high-resolution regional climate modelling products focused on Australia (BARRA-R2, BARRA-C2, and BARPA-C), we evaluate the added value of high-resolution simulations in representing low clouds and radiation. Our findings suggest that simulations at 4.4 km resolution, typically considered as convection-permitting, may not fully resolve the complexities of low clouds and associated shortwave radiation, leading to notable and distinct bias compared to observations. The underlying mechanisms are explored and potential pathways for improvements are discussed.

  4. Short talk: (10mins)

    • W21C plans Bethan White
      Bethan will share a few thoughts on her initial plans as well as some longer-term priorities for her role within W21C.

  5. ACCESS-rAM3: Beta release & future development: Heidi Nettelbeck (5mins)
    The first ACCESS-NRI supported release of ACCESS-rAM3, an implementation of the UKMO Regional Nesting Suite, is NOW AVAILABLE for you to use and test!
    For more information about ACCESS-rAM3 and what you can expect to do with it, refer to the Release Information on the Hive Forum.

  6. Momentum User Workshop 2025 (9-13 June): Charmaine Franklin (5mins)
    UKMO Momentum Workshop will include a range of topics, e.g., idealised LFRic modelling workshop, regional session focussed on RAL3-LFRic, etc.

  7. AAF authentication on ACCESS-Hive Forum: Heidi Nettelbeck (5mins)
    ACCESS-NRI has been working with Australian Access Federation (AAF) in a project to add AAF authentication to our services, allowing you to log into the Hive Forum using your institutional credentials. Please follow these instructions to add AAF authentication to your Forum account without affecting the way you currently log in.

  8. Compute/storage resources: Heidi Nettelbeck (5mins)

    • Are there any experiment proposals for Q2/2025 (875 kSU allocation)?
      → See here for how to apply for Atmosphere WG Resources.
    • ACCESS-NRI’s OM3 and CM3 developments have used 40% of the quarter allocation in 15 days. Can any WGs already identify any spare capacity to transfer to ACCESS-NRI?

  9. Next Atmosphere WG meeting: May 2025

37

:rocket: Beta-release of ACCESS-rAM3

Is now OUT!!
As flagged in our recent Atmosphere WG meeting, the beta-release of ACCESS-rAM3 is now available for you to use and test!

What is ACCESS-rAM3?
The ACCESS Regional Atmosphere Model (ACCESS-rAM3) is an implementation of the UKMO Regional Nesting Suite. It is configured to derive its initial and lateral boundary conditions from ERA5. For its land-surface initial conditions, ACCESS-rAM3 offers flexibility by allowing the use of alternative datasets, such as ERA5-Land and BARRA-R2.

For more information about ACCESS-rAM3 and what you can expect to do with it, refer to the Release Information on the ACCESS-Hive Forum.
You can also visit the ACCESS-Hive Docs for more information about the model configuration and how to run ACCESS-rAM3.

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38

!!Reminder: Atmosphere WG meeting 30.04.2025

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. Brief update from WG co-chairs and ACCESS-NRI: Yi Huang, Charmaine Franklin, Matt Woodhouse, Heidi Nettelbeck (5mins)

  3. Science talk: (15+5mins)

    • Towards enhancing climate projections through improved understanding and simulations of marine low clouds Qinggang Gao
      The response of low clouds to warming is the greatest source of uncertainty in climate projections. Current global climate models at coarse resolutions struggle to represent clouds, particularly low clouds driven by shallow convection. Although global kilometer-resolution simulations may become feasible for climate projections by 2060s, higher resolution alone does not guarantee more accurate predictions. Building upon the high-resolution regional climate modelling products focused on Australia (BARRA-R2, BARRA-C2, and BARPA-C), we evaluate the added value of high-resolution simulations in representing low clouds and radiation. Our findings suggest that simulations at 4.4 km resolution, typically considered as convection-permitting, may not fully resolve the complexities of low clouds and associated shortwave radiation, leading to notable and distinct bias compared to observations. The underlying mechanisms are explored and potential pathways for improvements are discussed.

  4. Short talk: (10mins)

    • W21C plans Bethan White
      Bethan will share a few thoughts on her initial plans as well as some longer-term priorities for her role within W21C.

  5. ACCESS-rAM3: Supported release & future development: Heidi Nettelbeck (5mins)
    The first ACCESS-NRI supported release of ACCESS-rAM3, an implementation of the UKMO Regional Nesting Suite, is NOW AVAILABLE for you to use and test!
    For more information about ACCESS-rAM3 and what you can expect to do with it, refer to the Release Information on the Hive Forum.

  6. AAF authentication on ACCESS-Hive Forum: Heidi Nettelbeck (5mins)
    ACCESS-NRI has been working with Australian Access Federation (AAF) in a project to add AAF authentication to our services, allowing you to log into the Hive Forum using your institutional credentials. Please follow these instructions to add AAF authentication to your Forum account without affecting the way you currently log in.

  7. Momentum User Workshop 2025 (9-13 June): Charmaine Franklin (5mins)
    UKMO Momentum Workshop will include a range of topics, e.g., idealised LFRic modelling workshop, regional session focussed on RAL3-LFRic, etc.

  8. Compute/storage resources: Heidi Nettelbeck (5mins)

    • Are there any experiment proposals for Q2/2025 (875 kSU allocation)?
      → See here for how to apply for Atmosphere WG Resources.
    • ACCESS-NRI’s OM3 and CM3 developments have used 40% of the quarter allocation in 15 days. Can any WGs already identify any spare capacity to transfer to ACCESS-NRI?

  9. Desired metrics for evaluation for AM3: Heidi Nettelbeck (5mins)

    • What standard metrics should we be tracking during development?

  10. Next Atmosphere WG meeting: May 2025

39

Atmosphere WG meeting 04.06.2025

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. Brief update from WG co-chairs and ACCESS-NRI: Yi Huang, Charmaine Franklin, Matt Woodhouse, Heidi Nettelbeck (5mins)
  3. Supported reference datasets update: Clare Richards (15mins)
    Clare will give an update on supported reference datasets on Gadi that are relevant to our Atmosphere community. She would also like to obtain a final decision on the requests that were for the BOM datasets/collections already on Gadi (AGCD, Operational Radar, BARRA1 and 2).
  4. ACCESS Workshop 2025 (8-12 September): Heidi Nettelbeck, Paige Martin (15mins)
    • Abstract submissions are now open! Submissions close 15 June 2025.
    • Atmosphere WG meeting → Friday 12 September. Agenda ideas?
  5. ACCESS-NRI 2025/26 Workplan: Heidi Nettelbeck (10mins)
    Discussion and feedback on ACCESS-NRI Workplan.
  6. Reminder to set up AAF authentication on Hive Forum: Heidi Nettelbeck (5mins)
    Please follow these instructions to add AAF authentication to your Hive Forum account without affecting the way you currently log in.
  7. Compute/storage resources: Heidi Nettelbeck (5mins)
    Any experiment proposals for Q2/2025 (875 kSU allocation)?
    → See here for how to apply for Atmosphere WG Resources.
  8. Next Atmosphere WG meeting: July 2025
1 Like
40

!! Reminder: Atmosphere WG meeting 04.06.2025

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. Brief update from WG co-chairs and ACCESS-NRI: Yi Huang, Charmaine Franklin, Matt Woodhouse, Heidi Nettelbeck (5mins)
  3. Supported reference datasets update: Clare Richards (15mins)
    Clare will give an update on supported reference datasets on Gadi that are relevant to our Atmosphere community. She would also like to obtain a final decision on the requests that were for the BOM datasets/collections already on Gadi (AGCD, Operational Radar, BARRA1 and 2).
  4. ACCESS Workshop 2025 (8-12 September): Heidi Nettelbeck, Paige Martin (15mins)
    • Abstract submissions are now open! Submissions close 15 June 2025.
    • Atmosphere WG meeting → Friday 12 September. Agenda ideas?
    • Possible idea: Training specific to the WG relating to atmosphere recipes, including a Git training potentially online before the workshop.
  5. ACCESS-NRI 2025/26 Workplan: Heidi Nettelbeck (10mins)
    Discussion and feedback on ACCESS-NRI Workplan.
  6. Reminder to set up AAF authentication on Hive Forum: Heidi Nettelbeck (5mins)
    Please follow these instructions to add AAF authentication to your Hive Forum account without affecting the way you currently log in.
  7. Compute/storage resources: Heidi Nettelbeck (5mins)
    Any experiment proposals for Q2/2025 (875 kSU allocation)?
    → See here for how to apply for Atmosphere WG Resources.
  8. Next Atmosphere WG meeting: July 2025
41

Atmosphere WG meeting 23.07.2025

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

Agenda

TBC