# \#mom6 **URL:** https://forum.access-hive.org.au/tag/mom6/182.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) --- ## [Mom6 fails after exactly 1 day, U\_TRUNC / V\_TRUNC output files missing](https://forum.access-hive.org.au/t/mom6-fails-after-exactly-1-day-u-trunc-v-trunc-output-files-missing/7082)
**Author:** [@ashjbarnes](https://forum.access-hive.org.au/u/ashjbarnes)\ **Replies:** 5\ **Last updated:** [15 October 2026 02:55 UTC](https://forum.access-hive.org.au/t/mom6-fails-after-exactly-1-day-u-trunc-v-trunc-output-files-missing/7082 "2026-10-15T02:55:34Z")
@pearseb has set up a new regional mom6 domain, and it inexplicably stops running very suddenly with heaps of truncations. However, we can’t seem to get the U\_TRUNC and V\_TRUNC files to print out. I’ve even tried puttin… --- ## [New regional-mom6 release for setting up ACCESS-rOM3 domains](https://forum.access-hive.org.au/t/new-regional-mom6-release-for-setting-up-access-rom3-domains/7043)
**Author:** [@ashjbarnes](https://forum.access-hive.org.au/u/ashjbarnes)\ **Replies:** 0\ **Last updated:** [30 September 2026 01:32 UTC](https://forum.access-hive.org.au/t/new-regional-mom6-release-for-setting-up-access-rom3-domains/7043 "2026-09-30T01:32:58Z")
New regional-mom6 release for setting up ACCESS-rOM3 domains regional-mom6 is a python package that generates generic regional configurations for MOM6. Now it can also set up generic ACCESS-rOM3 domains, where ACCESS-rOM… --- ## [MOM input data in /g/data/ua8](https://forum.access-hive.org.au/t/mom-input-data-in-g-data-ua8/2090)
**Author:** [@Aidan](https://forum.access-hive.org.au/u/Aidan)\ **Replies:** 3\ **Last updated:** [27 February 2026 04:15 UTC](https://forum.access-hive.org.au/t/mom-input-data-in-g-data-ua8/2090 "2026-02-27T04:15:45Z")
With CLEX finishing at the end of the year (:cry:) the ua8 project will cease to be. This is a data project that contains a number of datasets that were produced and/or used by the COSIMA community. The MOM subdirectory… --- ## [Regridding from MOM6 native coordinates](https://forum.access-hive.org.au/t/regridding-from-mom6-native-coordinates/5862)
**Author:** [@Lizzie](https://forum.access-hive.org.au/u/Lizzie)\ **Replies:** 2\ **Last updated:** [4 February 2026 21:51 UTC](https://forum.access-hive.org.au/t/regridding-from-mom6-native-coordinates/5862 "2026-02-04T21:51:21Z")
At the moment, output from MOM6 returns BGC variables on the z\* grid which I understand varies in time, given by e or h. Is there a neat way to regrid the BGC data onto a fixed grid and then interp it onto the same verti… --- ## [Advice wanted on acceptable salinities and bathymetry editing (i.e., modelling dark arts)](https://forum.access-hive.org.au/t/advice-wanted-on-acceptable-salinities-and-bathymetry-editing-i-e-modelling-dark-arts/5708)
**Author:** [@mmr0](https://forum.access-hive.org.au/u/mmr0)\ **Replies:** 4\ **Last updated:** [17 December 2025 00:29 UTC](https://forum.access-hive.org.au/t/advice-wanted-on-acceptable-salinities-and-bathymetry-editing-i-e-modelling-dark-arts/5708 "2025-12-17T00:29:04Z")
Hi, My regional OM3 config crashes with the following error: WARNING from PE 607: Extreme surface sfc\_state detected: i= 211 j=1028 lon= 137.796 lat= -32.646 x= 137.796 y= -32.646 D= 4.1000E+00 SSH= 9.9130E+00 SST= 2… --- ## [MOM6 Error | btstep: eta has dropped below bathyT](https://forum.access-hive.org.au/t/mom6-error-btstep-eta-has-dropped-below-bathyt/869)
**Author:** [@john\_reilly](https://forum.access-hive.org.au/u/john_reilly)\ **Replies:** 14\ **Last updated:** [16 December 2025 04:47 UTC](https://forum.access-hive.org.au/t/mom6-error-btstep-eta-has-dropped-below-bathyt/869 "2025-12-16T04:47:09Z")
Running MOM6 on Setonix, starting from 1970-01-01, with IAF forcing, I receive this warming/error combo: WARNING from PE 2726: btstep: eta has dropped below bathyT: -2.0273254780607175E+02 vs. -1.6440260515351190E+02… --- ## [Salt advection variables in MOM6](https://forum.access-hive.org.au/t/salt-advection-variables-in-mom6/5674)
**Author:** [@KZCurtin](https://forum.access-hive.org.au/u/KZCurtin)\ **Replies:** 1\ **Last updated:** [9 December 2025 04:32 UTC](https://forum.access-hive.org.au/t/salt-advection-variables-in-mom6/5674 "2025-12-09T04:32:07Z")
Hi all! I’m trying to find variables for the salt advection fluxes in MOM6. In MOM5, these seem to be salt\_xflux\_adv and salt\_yflux\_adv. In MOM6, I have found S\_adx, S\_adx\_2d, S\_ady, and S\_ady\_2d, which seem right, but I… --- ## [Issue creating MOM6 catalog with NCI-intake](https://forum.access-hive.org.au/t/issue-creating-mom6-catalog-with-nci-intake/5638)
**Author:** [@Wilton\_Aguiar](https://forum.access-hive.org.au/u/Wilton_Aguiar)\ **Replies:** 3\ **Last updated:** [4 December 2025 01:22 UTC](https://forum.access-hive.org.au/t/issue-creating-mom6-catalog-with-nci-intake/5638 "2025-12-04T01:22:43Z")
I have been trying use Intake to index a new simulation I’ve run with MOM6-SIS2 (panan), but have been having some errors I’m not quire sure how to fix. The code runs fine-ish (with several pynvml package FutureWarning … --- ## [Outputting a region using MOM6 diag\_table - rather than a single file, I am getting many (one per processor?)](https://forum.access-hive.org.au/t/outputting-a-region-using-mom6-diag-table-rather-than-a-single-file-i-am-getting-many-one-per-processor/5262)
**Author:** [@mmr0](https://forum.access-hive.org.au/u/mmr0)\ **Replies:** 20\ **Last updated:** [1 December 2025 05:20 UTC](https://forum.access-hive.org.au/t/outputting-a-region-using-mom6-diag-table-rather-than-a-single-file-i-am-getting-many-one-per-processor/5262 "2025-12-01T05:20:33Z")
Hello - I am trying the option of outputting a “region” in diag\_table. I’ve selected a 5x3 degree box and am outputting daily 3d fields. I seem to be getting multiple files (one per processor?) per variable, when I expec… --- ## [Making Intake Datastore for panantarctic](https://forum.access-hive.org.au/t/making-intake-datastore-for-panantarctic/4117)
**Author:** [@KZCurtin](https://forum.access-hive.org.au/u/KZCurtin)\ **Replies:** 16\ **Last updated:** [7 February 2025 05:38 UTC](https://forum.access-hive.org.au/t/making-intake-datastore-for-panantarctic/4117 "2025-02-07T05:38:23Z")
Hello, I am a new Honours student at the Australian National University. I’m trying to build a new intake datastore for a new panantarctic simulation. I have been trying to follow this tutorial: cosima-recipes/Tutorials/… --- ## [Issue creating an idealised channel configuration mimicking the Antarctic shelves-margins](https://forum.access-hive.org.au/t/issue-creating-an-idealised-channel-configuration-mimicking-the-antarctic-shelves-margins/2035)
**Author:** [@Wilton\_Aguiar](https://forum.access-hive.org.au/u/Wilton_Aguiar)\ **Replies:** 6\ **Last updated:** [24 April 2024 08:41 UTC](https://forum.access-hive.org.au/t/issue-creating-an-idealised-channel-configuration-mimicking-the-antarctic-shelves-margins/2035 "2024-04-24T08:41:39Z")
Hello everyone I am trying to set up a quasi-2d version of Panan with 0.1deg resolution, same latitude extension as panan01, but a very small 4 x-cells domain on t-points (0.4deg extent) I set up the domain as reentran… --- ## [MOM6 Regional Error: segment data are not on supergrid](https://forum.access-hive.org.au/t/mom6-regional-error-segment-data-are-not-on-supergrid/2046)
**Author:** [@john\_reilly](https://forum.access-hive.org.au/u/john_reilly)\ **Replies:** 1\ **Last updated:** [18 April 2024 23:34 UTC](https://forum.access-hive.org.au/t/mom6-regional-error-segment-data-are-not-on-supergrid/2046 "2024-04-18T23:34:10Z")
After a bit of a hiatus in running the regional mom6 on Setonix, I’ve tried picking this up again from a later restart file. I was a bit silly and hadn’t backed up some of the input files, so needed to make a new hgrid b… --- ## [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 … --- ## [MOM6 NIC\_SYMMETRY\_TEST error](https://forum.access-hive.org.au/t/mom6-nic-symmetry-test-error/1522)
**Author:** [@ChrisC28](https://forum.access-hive.org.au/u/ChrisC28)\ **Replies:** 11\ **Last updated:** [19 October 2023 09:32 UTC](https://forum.access-hive.org.au/t/mom6-nic-symmetry-test-error/1522 "2023-10-19T09:32:45Z")
Hi all, I’m having a repeated error running the MOM6 regional model on the Setonix supercomputer. Blockquote MPICH ERROR: All nodes in this job do not contain the same number of NICs. Aborting job as performance may … --- ## [Turn off runoff in MOM6](https://forum.access-hive.org.au/t/turn-off-runoff-in-mom6/1523)
**Author:** [@ChrisC28](https://forum.access-hive.org.au/u/ChrisC28)\ **Replies:** 2\ **Last updated:** [18 October 2023 06:38 UTC](https://forum.access-hive.org.au/t/turn-off-runoff-in-mom6/1523 "2023-10-18T06:38:46Z")
Hi all, Perhaps an obvious question, but I’d like to turn OFF river runoff. Very occasional spurious values are becoming an issue and I’ve almost convinced myself that runoff is not a dominant process in the regions I c… --- ## [Payu maintaining only every 5th restart on Panantarctic simulations](https://forum.access-hive.org.au/t/payu-maintaining-only-every-5th-restart-on-panantarctic-simulations/1459)
**Author:** [@Wilton\_Aguiar](https://forum.access-hive.org.au/u/Wilton_Aguiar)\ **Replies:** 5\ **Last updated:** [29 September 2023 03:59 UTC](https://forum.access-hive.org.au/t/payu-maintaining-only-every-5th-restart-on-panantarctic-simulations/1459 "2023-09-29T03:59:14Z")
Hello While running panan (MOM6), I noticed that payu saves only the last five restarts + older restarts in every 5th run (e.g., restart000,restart005…). This happens in all panantarctic configs, but not with access-om2… --- ## [NOAA's Interconnected Suite of MOM6-based Coupled Models for Research, Climate Projections and Operational Forecasts](https://forum.access-hive.org.au/t/noaas-interconnected-suite-of-mom6-based-coupled-models-for-research-climate-projections-and-operational-forecasts/1189)
**Author:** [@Hallberg-NOAA](https://forum.access-hive.org.au/u/Hallberg-NOAA)\ **Replies:** 7\ **Last updated:** [5 September 2023 22:57 UTC](https://forum.access-hive.org.au/t/noaas-interconnected-suite-of-mom6-based-coupled-models-for-research-climate-projections-and-operational-forecasts/1189 "2023-09-05T22:57:29Z")
Title NOAA’s Interconnected Suite of MOM6-based Coupled Models for Research, Climate Projections and Operational Forecasts Speaker Bob Hallberg (Geophysical Fluid Dynamics Laboratory (GFDL) Recording Loca… --- ## [Poster: Antarctic Bottom Water formation and export in PanAntarctic-MOM6: effect of horizontal resolution](https://forum.access-hive.org.au/t/poster-antarctic-bottom-water-formation-and-export-in-panantarctic-mom6-effect-of-horizontal-resolution/1230)
**Author:** [@schmidt-christina](https://forum.access-hive.org.au/u/schmidt-christina)\ **Replies:** 0\ **Last updated:** [3 September 2023 22:15 UTC](https://forum.access-hive.org.au/t/poster-antarctic-bottom-water-formation-and-export-in-panantarctic-mom6-effect-of-horizontal-resolution/1230 "2023-09-03T22:15:38Z")
Title Antarctic Bottom Water formation and export in PanAntarctic-MOM6: effect of horizontal resolution About We have developed a PanAntarctic ocean-sea ice model based on MOM6 with horizontal resolutions of 1/10°, 1/20… --- ## [Technical requirements for MOM6 node testing](https://forum.access-hive.org.au/t/technical-requirements-for-mom6-node-testing/1052)
**Author:** [@Aidan](https://forum.access-hive.org.au/u/Aidan)\ **Replies:** 6\ **Last updated:** [2 August 2023 06:17 UTC](https://forum.access-hive.org.au/t/technical-requirements-for-mom6-node-testing/1052 "2023-08-02T06:17:24Z")
@angus-g has put out a call for MOM6 model configurations to include in a testing suite when there is an Australian MOM6 “node” https://forum.access-hive.org.au/t/a-call-for-community-model-configurations-that-use-mom6/… --- ## [How are the offset longitude values handled between JRA55-do and MOM5/MOM6?](https://forum.access-hive.org.au/t/how-are-the-offset-longitude-values-handled-between-jra55-do-and-mom5-mom6/932)
**Author:** [@john\_reilly](https://forum.access-hive.org.au/u/john_reilly)\ **Replies:** 10\ **Last updated:** [2 July 2023 23:27 UTC](https://forum.access-hive.org.au/t/how-are-the-offset-longitude-values-handled-between-jra55-do-and-mom5-mom6/932 "2023-07-02T23:27:13Z")
I’m starting to look at some output from the regional EAC MOM6 run that I started from 1990-01-01, forced by ACCESS-OM2-01. This has run for 5 years, and before I continue this on any further, I just wanted to make sure … --- ## [MOM6 Regional Model Generator](https://forum.access-hive.org.au/t/mom6-regional-model-generator/805)
**Author:** [@ashjbarnes](https://forum.access-hive.org.au/u/ashjbarnes)\ **Replies:** 2\ **Last updated:** [2 June 2023 06:58 UTC](https://forum.access-hive.org.au/t/mom6-regional-model-generator/805 "2023-06-02T06:58:08Z")
I gave a talk in the COSIMA meeting last week about the regional modelling pipeline that @john\_reilly @angus-g and @ChrisC28 have been working on. I think I forgot to give people the Github repo though! It can be found h…