# \#access-om3 **URL:** https://forum.access-hive.org.au/tag/access-om3/173.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) --- ## [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… --- ## [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… --- ## [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… --- ## [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… --- ## [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 @… --- ## [ACCESS-OM3: Release Information](https://forum.access-hive.org.au/t/access-om3-release-information/4494)
**Author:** [@anton](https://forum.access-hive.org.au/u/anton)\ **Replies:** 3\ **Last updated:** [15 July 2026 04:24 UTC](https://forum.access-hive.org.au/t/access-om3-release-information/4494 "2026-07-15T04:24:25Z")
To receive email notifications when a new release is announced, please watch this topic. --- ## [ACCESS-OM3 fun run missing diagnostics](https://forum.access-hive.org.au/t/access-om3-fun-run-missing-diagnostics/6466)
**Author:** [@JuliaN](https://forum.access-hive.org.au/u/JuliaN)\ **Replies:** 3\ **Last updated:** [28 May 2026 03:32 UTC](https://forum.access-hive.org.au/t/access-om3-fun-run-missing-diagnostics/6466 "2026-05-28T03:32:07Z")
Hi, I had some time in my hands and ran a few days of om3 25km (https://github.com/ACCESS-NRI/access-om3-configs/tree/dev-MC\_25km\_jra\_iaf). I modified my diag\_table using the data\_table\_source file, but some of the diagn… --- ## [Air-sea flux parameterisation (aka bulk formula) in CM3](https://forum.access-hive.org.au/t/air-sea-flux-parameterisation-aka-bulk-formula-in-cm3/5890)
**Author:** [@mmr0](https://forum.access-hive.org.au/u/mmr0)\ **Replies:** 2\ **Last updated:** [11 February 2026 02:14 UTC](https://forum.access-hive.org.au/t/air-sea-flux-parameterisation-aka-bulk-formula-in-cm3/5890 "2026-02-11T02:14:37Z")
Hi, I’d like to understand how air-sea fluxes are computed in CM3 - specifically what flux parameterisation is used and which component does the calculation. I know that in OM3 (with a data atmosphere) these fluxes are… --- ## [How to build ACCESS-OM3 on Setonix](https://forum.access-hive.org.au/t/how-to-build-access-om3-on-setonix/5523)
**Author:** [@harshula](https://forum.access-hive.org.au/u/harshula)\ **Replies:** 8\ **Last updated:** [28 November 2025 00:32 UTC](https://forum.access-hive.org.au/t/how-to-build-access-om3-on-setonix/5523 "2025-11-28T00:32:45Z")
How to build ACCESS-OM3 on Setonix (v2) \[18/11/2025: Refer to How to set up access-spack-packages on Setonix to build ACCESS models\] Ensure that the initial setup requirements have been completed: How to set up acces… --- ## [Running MCW with IC4 numerics](https://forum.access-hive.org.au/t/running-mcw-with-ic4-numerics/5335)
**Author:** [@NoahDay](https://forum.access-hive.org.au/u/NoahDay)\ **Replies:** 1\ **Last updated:** [30 September 2025 05:43 UTC](https://forum.access-hive.org.au/t/running-mcw-with-ic4-numerics/5335 "2025-09-30T05:43:13Z")
I’ve just tried the following steps to try and run an ACCESS-OM3 MCW config with the updated IC4 numerical scheme (config branch is here): module use /g/data/vk83/modules module load payu payu clone --branch IC4\_Numeric… --- ## [ACCESS-OM3 25km 1.0-beta Feedback](https://forum.access-hive.org.au/t/access-om3-25km-1-0-beta-feedback/4719)
**Author:** [@anton](https://forum.access-hive.org.au/u/anton)\ **Replies:** 3\ **Last updated:** [25 August 2025 06:54 UTC](https://forum.access-hive.org.au/t/access-om3-25km-1-0-beta-feedback/4719 "2025-08-25T06:54:41Z")
About This topic is a catch-all location for feedback for the ACCESS-OM3 25km RYF 1.0-beta Release. Please reply to this topic if you have feedback on the ACCESS-OM3 release. Feedback can be to point out problems encoun… --- ## [Building ACCESS-OM3](https://forum.access-hive.org.au/t/building-access-om3/4792)
**Author:** [@angus-g](https://forum.access-hive.org.au/u/angus-g)\ **Replies:** 3\ **Last updated:** [14 August 2025 04:33 UTC](https://forum.access-hive.org.au/t/building-access-om3/4792 "2025-08-14T04:33:37Z")
I’m trying to follow Modify and build an ACCESS model's source code - ACCESS-Hive Docs to build ACCESS-OM3. I’ve followed the Spack install instructions, and can build both the access-test package, and ACCESS-ESM1.5 as i… --- ## [ACCESS-OM3-25km model evaluation team](https://forum.access-hive.org.au/t/access-om3-25km-model-evaluation-team/4470)
**Author:** [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\ **Replies:** 1\ **Last updated:** [28 May 2025 07:08 UTC](https://forum.access-hive.org.au/t/access-om3-25km-model-evaluation-team/4470 "2025-05-28T07:08:28Z")
We’re gathering a team to provide scientific input into the development of the new ACCESS-OM3-25km config (i.e. the next generation model replacing ACCESS-OM2-025). The plan is to meet regularly with ACCESS-NRI folks ov… --- ## [ACCESS-OM3 evaluation](https://forum.access-hive.org.au/t/access-om3-evaluation/1462)
**Author:** [@dougiesquire](https://forum.access-hive.org.au/u/dougiesquire)\ **Replies:** 22\ **Last updated:** [31 January 2025 00:38 UTC](https://forum.access-hive.org.au/t/access-om3-evaluation/1462 "2025-01-31T00:38:45Z")
The purpose of this topic is to discuss and plan the evaluation of ACCESS-OM3. Below I’ve summarised the evaluation metrics and diagnostics that were included in the ACCESS-OM2 description paper (Kiss et al. 2020) and t… --- ## [ACCESS-OM3 1/10°, 1/12° or something else?](https://forum.access-hive.org.au/t/access-om3-1-10-1-12-or-something-else/3956)
**Author:** [@aekiss](https://forum.access-hive.org.au/u/aekiss)\ **Replies:** 4\ **Last updated:** [4 December 2024 02:55 UTC](https://forum.access-hive.org.au/t/access-om3-1-10-1-12-or-something-else/3956 "2024-12-04T02:55:44Z")
Hi folks, we’re working on ACCESS-OM3 1° and 0.25° global configurations and beginning to scope out higher resolution. Initially we planned on 0.1° but there has been some suggestion to go a little higher, e.g. 1/12°. No… --- ## [ACCESS-NRI ocean modelling survey: steering future development for users](https://forum.access-hive.org.au/t/access-nri-ocean-modelling-survey-steering-future-development-for-users/3853)
**Author:** [@cbull](https://forum.access-hive.org.au/u/cbull)\ **Replies:** 2\ **Last updated:** [2 December 2024 00:38 UTC](https://forum.access-hive.org.au/t/access-nri-ocean-modelling-survey-steering-future-development-for-users/3853 "2024-12-02T00:38:42Z")
In the Ocean Team at ACCESS-NRI, we’re in the process of thinking about our future team priorities and would like to know where our resources best enable the community (broadest sense here, i.e., external to COSIMA is we… --- ## [Enhancing Model Evaluation Feedback Mechanisms for the ACCESS Community](https://forum.access-hive.org.au/t/enhancing-model-evaluation-feedback-mechanisms-for-the-access-community/3686)
**Author:** [@rbeucher](https://forum.access-hive.org.au/u/rbeucher)\ **Replies:** 3\ **Last updated:** [13 September 2024 03:42 UTC](https://forum.access-hive.org.au/t/enhancing-model-evaluation-feedback-mechanisms-for-the-access-community/3686 "2024-09-13T03:42:57Z")
Dear ACCESS community, In several recent meetings, and during last week’s Workshop, an important topic has come up repeatedly: how can data users and those involved in model evaluation provide meaningful feedback on iss… --- ## [Namelist configuration discussion meeting](https://forum.access-hive.org.au/t/namelist-configuration-discussion-meeting/1917)
**Author:** [@minghangli](https://forum.access-hive.org.au/u/minghangli)\ **Replies:** 9\ **Last updated:** [15 March 2024 03:49 UTC](https://forum.access-hive.org.au/t/namelist-configuration-discussion-meeting/1917 "2024-03-15T03:49:29Z")
We are progressing towards the configuration stage of the ACCESS-OM3 0.25deg, and as such, it’s crucial to discuss the namelist options and parameterisations. To streamline this process, we propose organising an online … --- ## [Raising visibility of cavity plans in OM3](https://forum.access-hive.org.au/t/raising-visibility-of-cavity-plans-in-om3/1682)
**Author:** [@adfraser](https://forum.access-hive.org.au/u/adfraser)\ **Replies:** 3\ **Last updated:** [13 December 2023 23:59 UTC](https://forum.access-hive.org.au/t/raising-visibility-of-cavity-plans-in-om3/1682 "2023-12-13T23:59:11Z")
Hi everyone, After the Cryo WG meeting today I had a few questions rattling around in my mind - things like: Will ACCESS-OM3 have sub shelf cavities? If so, will it have thermodynamics (e.g. melt)? Could it even have … --- ## [Poster: ACCESS-OM3, Australia's next-generation ocean-sea ice-wave model](https://forum.access-hive.org.au/t/poster-access-om3-australias-next-generation-ocean-sea-ice-wave-model/1226)
**Author:** [@aekiss](https://forum.access-hive.org.au/u/aekiss)\ **Replies:** 0\ **Last updated:** [3 September 2023 00:05 UTC](https://forum.access-hive.org.au/t/poster-access-om3-australias-next-generation-ocean-sea-ice-wave-model/1226 "2023-09-03T00:05:20Z")
Poster: ACCESS-OM3, Australia’s next-generation ocean-sea ice-wave model About This is an overview of ACCESS-OM3, its development progress and our plans for the future. Since its release in 2019, the ACCESS-OM2 multi-res… --- ## [NUOPC Component Explorer](https://forum.access-hive.org.au/t/nuopc-component-explorer/836)
**Author:** [@aekiss](https://forum.access-hive.org.au/u/aekiss)\ **Replies:** 0\ **Last updated:** [6 June 2023 05:34 UTC](https://forum.access-hive.org.au/t/nuopc-component-explorer/836 "2023-06-06T05:34:26Z")
Has anyone tried using the NUOPC Component Explorer? Looks like it could be useful. ping @dougiesquire @kieranricardo @MartinDix