COSIMA workshop 2025 session brainstorming

This year’s COSIMA workshop will be held in Melbourne on 8-12th September.

The Wednesday and Thursday will be overlapping with the ACCESS-NRI workshop and we would like to spend these days in joint sessions with other working groups.

The COSIMA workshop committee has brainstormed the following possible sessions that involve at least one other working group besides COSIMA. We’re looking for more ideas or feedback on these to take to the ACCESS-NRI workshop program committee. Please brainstorm away!

Science sessions (talks/posters):

  1. Antarctic / Southern Ocean science (including ocean / sea ice / atmosphere / ice sheet interactions). [COSIMA + Cryosphere + Atmosphere + Earth System]

  2. Tropical / Extra-tropical Ocean-Atmosphere interactions. [COSIMA + Atmosphere + Earth System]

  3. Linking small-scale to large scale: turbulence processes, including turbulent convection, internal waves, mixing. [COSIMA + Atmosphere + Cryosphere]

  4. Machine Learning for Ocean and Sea Ice Science [COSIMA + Machine Learning]

  5. Projecting Future Carbon Reservoirs (inc. global carbon sinks, CDR, etc) [COSIMA + Land + Earth System]

Breakout discussions (possibly including short talks):

  1. Improving diversity in the ACCESS-NRI community (COSIMA could give a summary of their efforts so far including stats and survey) [All WG]

  2. Open source / community coordinated workflows / model development [All WG]

  3. Coupling a global / Australian carbon budget [COSIMA + Land + Earth System]

@taimoorsohail @navidcy @JuliaN please add things I missed. Some of the notes we had I found hard to interpret/imagine, so have left out.

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  1. Building bridges between the observational and modelling communities. Finding opportunities and ways of collaboration.

Maybe there are better ways of phrasing this, feel free to improve :slight_smile:

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At the COSIMA leadership meeting there was chat about a hackathon for the COSIMA cookbook, is that in the works for the workshop?

Yes the COSIMA Recipes hackathon / training will be the Monday-Tuesday of the COSIMA workshop week (8-9 September) in person in Melb. Same format as at the one at OMO last year, but spread over 2 days to allow more hacking time (and maybe a bocce tournament?).

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Sounds great. (I just didn’t see it in the above.)

I imagine you’ve seen it but the ACCESS Workshop 2025 Organising Committee are also looking to coordinate sessions. It seems the COSIMA co-chairs should have received an email today requesting a survey for input. Let me know if you missed it.

We are aware :wink: We were planning to hear from the COSIMA people and take everything into account and then bring these int the ACCESS Workshop organising chats.

This is a good idea, but maybe we could be more specific - As modellers, what are our priority observations (whether monitoring or field campaigns) that we need to improve our models?

If we envisage this obs session getting down to these kind of details, would such a session be better as COSIMA-only? Or are there model-obs synergies that would be useful to discuss with other ACCESS-NRI working groups? (Either is ok, we just should be clear what would be most useful for COSIMA.)

hmm, that’s a good question @adele157 , I guess I subconsciously had my COSIMA hat on with this suggestion. My feeling is that we’re more likely to have some useful output with a narrower/more defined scope (so yeah, ocean)

BGC people (@tylerrohr22 @pearseb etc), we struggled to come up with a session that overlaps BGC with another working group. Feel free to make suggestions! Do you guys have overlap with land carbon people or anything? A negative emissions / geoengineering session perhaps?

Are these the working groups?

@adele157 , do you know if there are any people with ACCESS-NRI working with the land model? If so, a session on uncertainty in projections of global carbon sinks would be super interesting. Im mostly thinking back to a 2017 paper (See below) that compared uncertainty in ocean vs land C uptake, and the land uncertainty was wild. Could be cool to get ocean physics/bgc people in a room with the terrestrial modellers to understand why/ if/when the land sink will hit a wall.

Another option would be ‘CDR in fully-coupled ESMs’. Most of the mCDR modelling has been with an offline, concentration driven atm and there is a lot a talk about how to start thinking about (and simulating) the feedbacks on the other C sinks, which will be reduced as C is removed from the atm. See paper below

I think both those could have ESM community wide interest with a heavy BGC component

Land Sink: Radware Bot Manager Captcha

CDR Metrics: EGUsphere - Efficiency metrics for ocean alkalinity enhancement under responsive and prescribed atmosphere conditions

@pearseb the ACCESS-NRI working groups are Atmospheric Modelling, COSIMA (inc. sea ice and BGC), Cryosphere (land ice), Earth System Modelling, Land Surface Modelling, and Machine Learning for Climate and Weather.

@tylerrohr22 awesome suggestions, thanks! Do you think these would be better as Science sessions (i.e. standard talks/posters) or Breakout discussion sessions? For science sessions, I’m thinking we’d probably want to make them broad enough they’d get say at least 10 abstract submissions?

The major BGC themes I see that intersect within the ACCESS-NRI working groups are:

  • High resolution modelling and extremes. (This applies to oxygen, blooms, carbon fluxes, pH in the ocean, but also equally to impacts of drought and flooding on the land)
  • Developing an Australian carbon budget. For this we need the land, atmosphere and ocean folks to talk to each other.
  • Building of the last point: Inter-realm linkages…
    (land → ocean via runoff, ice ↔ ocean, ocean ↔ atmosphere in terms of aerosols)

I could see this all divided up into something like:

One Science Session on something as broad as ‘Global Carbon Cycling’ or ‘Projecting Future Carbon Reservoirs’ that encompasses:

  • Projections/trends/feedbacks in global carbon sinks (Ocean & Land)
  • CDR (any type)
  • Air sea CO2 fluxes
  • High v Coarse resolution in simulation change in C Reservoirs
  • Defacto home for any other land/ocean bgc

One Breakout Sessions on ~ ‘Coupling a Global/Australian Carbon Budget’ that is focused on Pearse’s last two points: getting people that work on Carbon in different reservoirs in the same room and even just explaining to each other how the key climate-carbon feedbacks work and what the major coupled fluxes are.

That sounds perfect @tylerrohr22! I’ll add these to our suggested sessions at the top to pass onto ACCESS-NRI.