# COSIMA **URL:** https://forum.access-hive.org.au/c/cosima/29.md [Latest](https://forum.access-hive.org.au/latest.md) · [Categories](https://forum.access-hive.org.au/categories.md) · [Tags](https://forum.access-hive.org.au/tags.md) --- ## [ACCESS-OM2 Control Experiments](https://forum.access-hive.org.au/t/access-om2-control-experiments/258)
**Author:** [@Aidan](https://forum.access-hive.org.au/u/Aidan)\ **Replies:** 44\ **Last updated:** [14 April 2024 22:26 UTC](https://forum.access-hive.org.au/t/access-om2-control-experiments/258 "2024-04-14T22:26:20Z")
ACCESS-OM2 Control Experiments Introduction COSIMA has done a number of control experiments and made them available to the COSIMA community. This saves resources, enables research and provides a common basis for collab… --- ## [About the COSIMA category](https://forum.access-hive.org.au/t/about-the-cosima-category/74)
**Author:** [@aekiss](https://forum.access-hive.org.au/u/aekiss)\ **Replies:** 0\ **Last updated:** [26 October 2022 23:29 UTC](https://forum.access-hive.org.au/t/about-the-cosima-category/74 "2022-10-26T23:29:49Z")
Community Working Group activities, modelling and analysis of the ocean, sea-ice, waves and ocean BGC. This is for planning, documenting and answering questions related to COSIMA models (ACCESS-OM2, ACCESS-OM3) and thei… --- ## [Salt-restoring flux from file in MOM5 and MOM6](https://forum.access-hive.org.au/t/salt-restoring-flux-from-file-in-mom5-and-mom6/4610)
**Author:** [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Replies:** 28\ **Last updated:** [24 September 2026 06:00 UTC](https://forum.access-hive.org.au/t/salt-restoring-flux-from-file-in-mom5-and-mom6/4610 "2026-09-24T06:00:40Z")
Has anyone run ACCESS-OM2 or MOM6 with salt restoring fluxes from a file, not calculated adaptively online? For context we want to use salt fluxes saved from control experiments and apply these same salt fluxes in meltwa… --- ## [COSIMA TWG Meeting Minutes 2026](https://forum.access-hive.org.au/t/cosima-twg-meeting-minutes-2026/5906)
**Author:** [@minghangli](https://forum.access-hive.org.au/u/minghangli)\ **Replies:** 18\ **Last updated:** [24 September 2026 00:36 UTC](https://forum.access-hive.org.au/t/cosima-twg-meeting-minutes-2026/5906 "2026-09-24T00:36:28Z")
Date: 14 Jan 2026 Attendees: @sofarrell, @AndyHoggANU, @aekiss, @kieranricardo, @MartinDix, @helen, @NoahDay, @anton, @ashjbarnes, @dougiesquire Chair: @cbull Minutes: @minghangli 1. Regional Ocean Model Automation P… --- ## [COSIMA Working Group Announce](https://forum.access-hive.org.au/t/cosima-working-group-announce/238)
**Author:** [@edoddridge](https://forum.access-hive.org.au/u/edoddridge)\ **Replies:** 78\ **Last updated:** [22 September 2026 23:10 UTC](https://forum.access-hive.org.au/t/cosima-working-group-announce/238 "2026-09-22T23:10:18Z")
This topic will be used for announcements to the COSIMA Ocean/Sea-Ice Working Group by the leadership team. For example, we will announce meetings, workshops and events through this topic. There will not be an email lis… --- ## [COSIMA TWG Announce](https://forum.access-hive.org.au/t/cosima-twg-announce/401)
**Author:** [@micael](https://forum.access-hive.org.au/u/micael)\ **Replies:** 95\ **Last updated:** [22 September 2026 22:53 UTC](https://forum.access-hive.org.au/t/cosima-twg-announce/401 "2026-09-22T22:53:30Z")
COSIMA Technical Working Group (TWG) announcements topic Useful links/information: COSIMA TWG Meetings: Held fortnightly on Wednesdays, at 3pm. Zoom details: Join Zoom Meeting Zoom Meeting ID: 881 5048 6976, Passwo… --- ## [Ocean/ice stress from CICE](https://forum.access-hive.org.au/t/ocean-ice-stress-from-cice/7020)
**Author:** [@JuliaN](https://forum.access-hive.org.au/u/JuliaN)\ **Replies:** 0\ **Last updated:** [22 September 2026 06:49 UTC](https://forum.access-hive.org.au/t/ocean-ice-stress-from-cice/7020 "2026-09-22T06:49:49Z")
Hii, question for anyone here familiar with CICE. I’m looking at the diagnostic ocean/ice stress, called strocnx\_m. It is not clear to me whether It is the stress the ocean feels due to ice or the stress the ice feels… --- ## [Can we have a community copy of GLORYS daily data?](https://forum.access-hive.org.au/t/can-we-have-a-community-copy-of-glorys-daily-data/6997)
**Author:** [@jemmajeffree](https://forum.access-hive.org.au/u/jemmajeffree)\ **Replies:** 15\ **Last updated:** [21 September 2026 20:26 UTC](https://forum.access-hive.org.au/t/can-we-have-a-community-copy-of-glorys-daily-data/6997 "2026-09-21T20:26:57Z")
We have a replica of ERA5 on gadi, as well as CMIP models, but (to the best of my knowledge) we don’t have a recent high-resolution ocean reanalysis anywhere. GLORYs seems to be the one used by most of our community (cor… --- ## [ACCESS-OM3 development highlights/updates](https://forum.access-hive.org.au/t/access-om3-development-highlights-updates/5902)
**Author:** [@aekiss](https://forum.access-hive.org.au/u/aekiss)\ **Replies:** 15\ **Last updated:** [16 September 2026 07:05 UTC](https://forum.access-hive.org.au/t/access-om3-development-highlights-updates/5902 "2026-09-16T07:05:17Z")
These are presented fortnightly at COSIMA meetings. First, some context ACCESS-OM3 is a multi-resolution suite of global ocean-sea ice models under development by ACCESS-NRI and the COSIMA community The successor to A… --- ## [Payu run str error with rom3](https://forum.access-hive.org.au/t/payu-run-str-error-with-rom3/6963)
**Author:** [@Wilton\_Aguiar](https://forum.access-hive.org.au/u/Wilton_Aguiar)\ **Replies:** 3\ **Last updated:** [9 September 2026 06:35 UTC](https://forum.access-hive.org.au/t/payu-run-str-error-with-rom3/6963 "2026-09-09T06:35:51Z")
I have been following these instructions to run ACCESS-ROM3 from rest, with all the setup initiated from an interactive payu clone, etc. I’m using payu/1.3.5\_0. Everything goes well until I run payu run, at which point … --- ## [Ice-Ocean Interactions workshop](https://forum.access-hive.org.au/t/ice-ocean-interactions-workshop/6971)
**Author:** [@JuliaN](https://forum.access-hive.org.au/u/JuliaN)\ **Replies:** 0\ **Last updated:** [7 September 2026 07:35 UTC](https://forum.access-hive.org.au/t/ice-ocean-interactions-workshop/6971 "2026-09-07T07:35:27Z")
In case anyone is interested! We invite you to register for the third online workshop on ice sheet ocean interactions, organized by the Joint IACS-IAPSO Commission on Ice-Ocean Interactions (JCIOI), 19- 23 October 2026. … --- ## [ACCESS-OM3 model evaluation team Announce](https://forum.access-hive.org.au/t/access-om3-model-evaluation-team-announce/4476)
**Author:** [@cbull](https://forum.access-hive.org.au/u/cbull)\ **Replies:** 10\ **Last updated:** [3 September 2026 06:00 UTC](https://forum.access-hive.org.au/t/access-om3-model-evaluation-team-announce/4476 "2026-09-03T06:00:27Z")
Related to this post. The plan is to meet regularly with ACCESS-NRI folks over the next 6 months or so to contribute to evaluation and tuning choices during the \[ACCESS-OM3-25km\] development. The team will also contrib… --- ## [Feedback on COSIMA's draft 10 year science priorities for ACCESS Roadmap](https://forum.access-hive.org.au/t/feedback-on-cosimas-draft-10-year-science-priorities-for-access-roadmap/6811)
**Author:** [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Replies:** 15\ **Last updated:** [3 September 2026 03:45 UTC](https://forum.access-hive.org.au/t/feedback-on-cosimas-draft-10-year-science-priorities-for-access-roadmap/6811 "2026-09-03T03:45:15Z")
Hi COSIMA, The ACCESS-NRI Scientific Advisory Committee is developing an ACCESS Roadmap for the next 10 years. To help guide recommendations on which model development and support should be prioritised, we are starting … --- ## [Idealised configurations in MOM6](https://forum.access-hive.org.au/t/idealised-configurations-in-mom6/6922)
**Author:** [@ChrisC28](https://forum.access-hive.org.au/u/ChrisC28)\ **Replies:** 6\ **Last updated:** [28 August 2026 22:26 UTC](https://forum.access-hive.org.au/t/idealised-configurations-in-mom6/6922 "2026-08-28T22:26:25Z")
Hi all, @regdowse and I are looking to use MOM6 for some process based studies of meso-scale eddy behaviour. Essentially, we want a square or rectangular domain, with topography and boundary conditions that can be modif… --- ## [Turning off OM3 restart checks](https://forum.access-hive.org.au/t/turning-off-om3-restart-checks/6937)
**Author:** [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Replies:** 1\ **Last updated:** [28 August 2026 00:44 UTC](https://forum.access-hive.org.au/t/turning-off-om3-restart-checks/6937 "2026-08-28T00:44:10Z")
I made a mistake with the forcing for the last year of an OM3 run I did. So I deleted output and restart directories for that last year of the run, and am now trying to rerun that year from an earlier restart. I’m having… --- ## [Payu user feedback](https://forum.access-hive.org.au/t/payu-user-feedback/6705)
**Author:** [@JuliaN](https://forum.access-hive.org.au/u/JuliaN)\ **Replies:** 2\ **Last updated:** [26 August 2026 00:29 UTC](https://forum.access-hive.org.au/t/payu-user-feedback/6705 "2026-08-26T00:29:50Z")
Thanks for the payu tutorial the other day @Qianhui\_Chen and @Aidan ! It’s great to see all the new cool features you have included in payu. I mentioned that it would be useful to add a prompt in the payu clone flow tha… --- ## [Understanding CICE5 0.25 configuration](https://forum.access-hive.org.au/t/understanding-cice5-0-25-configuration/6826)
**Author:** [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Replies:** 3\ **Last updated:** [20 August 2026 06:18 UTC](https://forum.access-hive.org.au/t/understanding-cice5-0-25-configuration/6826 "2026-08-20T06:18:22Z")
Hi, I am trying to set up ACCESS-OM2-025 on Nesi (NZ supercomputer). I followed the build steps for NeSI provided by Harshula (many thanks). Now I’m trying to replicate the 0.25 deg release, version 3.0. I notice that… --- ## [Tracers in ACCESS-OM3](https://forum.access-hive.org.au/t/tracers-in-access-om3/6684)
**Author:** [@KZCurtin](https://forum.access-hive.org.au/u/KZCurtin)\ **Replies:** 5\ **Last updated:** [20 August 2026 01:43 UTC](https://forum.access-hive.org.au/t/tracers-in-access-om3/6684 "2026-08-20T01:43:27Z")
Hello! I’m playing around with using dye tracers in ACCESS-OM3. I’ve created specific masks for my source regions, and I’ve got a working test that injects the dye at the surface in these masked regions from a specific r… --- ## [ACCESS-OM3 crash: ERROR reading in filename](https://forum.access-hive.org.au/t/access-om3-crash-error-reading-in-filename/6804)
**Author:** [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Replies:** 2\ **Last updated:** [14 August 2026 20:10 UTC](https://forum.access-hive.org.au/t/access-om3-crash-error-reading-in-filename/6804 "2026-08-14T20:10:00Z")
Crowd-sourcing another ACCESS-OM3 crash that I can’t figure out. I ran it successfully for a year with the perturbed wind file for 1975, but now when I try to get it to switch to the new wind files for 1976 it is not hap… --- ## [ACCESS-OM3 wind perturbation run crash](https://forum.access-hive.org.au/t/access-om3-wind-perturbation-run-crash/6793)
**Author:** [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Replies:** 3\ **Last updated:** [12 August 2026 23:18 UTC](https://forum.access-hive.org.au/t/access-om3-wind-perturbation-run-crash/6793 "2026-08-12T23:18:44Z")
I’m running the regional ice shelf version of ACCESS-OM3 and have had a crash I don’t know how to fix. It crashed during initialisation with error: Abort with message Bad file descriptor in file /scratch/tm70/tm70\_ci/t… --- ## [Using copernicusmarine package to download GLORYS data](https://forum.access-hive.org.au/t/using-copernicusmarine-package-to-download-glorys-data/6721)
**Author:** [@Paul.Gregory](https://forum.access-hive.org.au/u/Paul.Gregory)\ **Replies:** 10\ **Last updated:** [12 August 2026 10:23 UTC](https://forum.access-hive.org.au/t/using-copernicusmarine-package-to-download-glorys-data/6721 "2026-08-12T10:23:15Z")
Hi all. I need to use the copernicus marine tool to download some glorys data. Before I go ahead and download the library myself : copernicusmarine · PyPI, I was wondering what the status is with this repository? Is… --- ## [AMOS 2027 sessions](https://forum.access-hive.org.au/t/amos-2027-sessions/6524)
**Author:** [@willrhobbs](https://forum.access-hive.org.au/u/willrhobbs)\ **Replies:** 1\ **Last updated:** [6 August 2026 23:51 UTC](https://forum.access-hive.org.au/t/amos-2027-sessions/6524 "2026-08-06T23:51:52Z")
Picking up from @pearseb discussion at the weekly meeting (18/06/2026), the call for session proposals is open until 10th July for AMOS 2027 (Melbourne, Feb 2027). @ariaan and I have discuss a similar session to the one… --- ## [COSIMA: the movie](https://forum.access-hive.org.au/t/cosima-the-movie/3760)
**Author:** [@PSpence](https://forum.access-hive.org.au/u/PSpence)\ **Replies:** 22\ **Last updated:** [30 July 2026 03:22 UTC](https://forum.access-hive.org.au/t/cosima-the-movie/3760 "2026-07-30T03:22:50Z")
Hi Folks, Any one want to help make a short film to be used to introduce users to our consortium? The goal is to edit/produce it on Nov 18 at IMAS. But I am thinking we need a script and organize/film some interviews w… --- ## [ACCESS-OM3 model evaluation team minutes](https://forum.access-hive.org.au/t/access-om3-model-evaluation-team-minutes/4550)
**Author:** [@cbull](https://forum.access-hive.org.au/u/cbull)\ **Replies:** 3\ **Last updated:** [23 July 2026 01:47 UTC](https://forum.access-hive.org.au/t/access-om3-model-evaluation-team-minutes/4550 "2026-07-23T01:47:10Z")
ACCESS-OM3 evaluation paper discussion Global OM3 setup Define priorities and who will be working on each config Agenda (1 hr) (Chaired by Paul Spence, Notes by @fabiobdias ): Participant list @PSpence @MATTENGLAND @… --- ## [Adding data to the COSIMA community WG space \`ol01\`](https://forum.access-hive.org.au/t/adding-data-to-the-cosima-community-wg-space-ol01/5761)
**Author:** [@cbull](https://forum.access-hive.org.au/u/cbull)\ **Replies:** 20\ **Last updated:** [20 July 2026 05:28 UTC](https://forum.access-hive.org.au/t/adding-data-to-the-cosima-community-wg-space-ol01/5761 "2026-07-20T05:28:17Z")
This post is to describe how the NCI COSIMA community WG space ol01 is managed. The approach is meant to be light weight and the important thing is that anyone that has a dataset that is of interest to others (e.g. 4 peo… --- ## [\`payu run\` issues](https://forum.access-hive.org.au/t/payu-run-issues/6655)
**Author:** [@JuliaN](https://forum.access-hive.org.au/u/JuliaN)\ **Replies:** 2\ **Last updated:** [17 July 2026 03:49 UTC](https://forum.access-hive.org.au/t/payu-run-issues/6655 "2026-07-17T03:49:04Z")
Hi! I am using the (hopefully) latest version of payu to run access-om3. I was running yesterday with no problem, but today payu run gets stuck here: If I open another terminal, using qstat the job is technically run… --- ## [Neutral Surfaces Calculation in python](https://forum.access-hive.org.au/t/neutral-surfaces-calculation-in-python/448)
**Author:** [@avivsolo](https://forum.access-hive.org.au/u/avivsolo)\ **Replies:** 22\ **Last updated:** [6 July 2026 02:28 UTC](https://forum.access-hive.org.au/t/neutral-surfaces-calculation-in-python/448 "2026-07-06T02:28:12Z")
Hello. I would like to calculate neutral density (Jackett & McDougall, 1997) from ACCESS-OM2 (0.1 deg version in this case) output data. For example, calculation of depth-latitude sections of neutral density. I found tha… --- ## [Intake loading aice\_m as two separate datasets](https://forum.access-hive.org.au/t/intake-loading-aice-m-as-two-separate-datasets/6586)
**Author:** [@hrsdawson](https://forum.access-hive.org.au/u/hrsdawson)\ **Replies:** 1\ **Last updated:** [3 July 2026 00:42 UTC](https://forum.access-hive.org.au/t/intake-loading-aice-m-as-two-separate-datasets/6586 "2026-07-03T00:42:51Z")
I’m trying to load the variable aice\_m from the 01deg\_jra55v140\_iaf\_cycle4experiment using intake, but intake is returning two separate datasets for this one diagnostic. This is the code I’m using to read the data: dict… --- ## [Diagnostics for new ACCESS-OM2+WOMBATlite control experiments](https://forum.access-hive.org.au/t/diagnostics-for-new-access-om2-wombatlite-control-experiments/6582)
**Author:** [@dougiesquire](https://forum.access-hive.org.au/u/dougiesquire)\ **Replies:** 0\ **Last updated:** [1 July 2026 23:42 UTC](https://forum.access-hive.org.au/t/diagnostics-for-new-access-om2-wombatlite-control-experiments/6582 "2026-07-01T23:42:25Z")
ACCESS-NRI plan to run a set of control experiments using the recently released ACCESS-OM2 configurations that include the WOMBATlite biogeochemistry model. The current plan is to run, as a minimum, IAF experiments at 1… --- ## [Recognising contributions COSIMA model configurations and simulations](https://forum.access-hive.org.au/t/recognising-contributions-cosima-model-configurations-and-simulations/4629)
**Author:** [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Replies:** 11\ **Last updated:** [30 June 2026 00:07 UTC](https://forum.access-hive.org.au/t/recognising-contributions-cosima-model-configurations-and-simulations/4629 "2026-06-30T00:07:56Z")
This post is a follow-up to our COSIMA meeting discussion on how we might keep track of people who have contributed to model development / simulations, along with their preferences for how (or if) they’d like to be ackno… [Next page](https://forum.access-hive.org.au/c/cosima/29.md?page=1)