# \#um **URL:** https://forum.access-hive.org.au/tag/um/106.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 to MetOffice GitHub Repository](https://forum.access-hive.org.au/t/access-to-metoffice-github-repository/7093)
**Author:** [@Michael\_Barnes](https://forum.access-hive.org.au/u/Michael_Barnes)\ **Replies:** 3\ **Last updated:** [14 October 2026 07:16 UTC](https://forum.access-hive.org.au/t/access-to-metoffice-github-repository/7093 "2026-10-14T07:16:43Z")
Hi all. I am working with colleagues at the UKMO who are trying to share code with me via a private repository on the MetOffice GitHub. The repo does not contain UM model code/configs but instead diagnostic code that ca… --- ## [Developers of ACCESS-CM3, AM3 and rAM3 models need to get access to the MetOffice's GitHub organisation](https://forum.access-hive.org.au/t/developers-of-access-cm3-am3-and-ram3-models-need-to-get-access-to-the-metoffices-github-organisation/6348)
**Author:** [@clairecarouge](https://forum.access-hive.org.au/u/clairecarouge)\ **Replies:** 0\ **Last updated:** [30 April 2026 06:55 UTC](https://forum.access-hive.org.au/t/developers-of-access-cm3-am3-and-ram3-models-need-to-get-access-to-the-metoffices-github-organisation/6348 "2026-04-30T06:55:18Z")
Are you a developer of ACCESS-CM3, AM3 or rAM3 models? You are a developer if you are changing anything in the code bases of these models’ components and need to build the model with the latest versions of the model comp… --- ## [How to gain access to MetOffice's GitHub private repositories](https://forum.access-hive.org.au/t/how-to-gain-access-to-metoffices-github-private-repositories/6342)
**Author:** [@clairecarouge](https://forum.access-hive.org.au/u/clairecarouge)\ **Replies:** 0\ **Last updated:** [30 April 2026 01:14 UTC](https://forum.access-hive.org.au/t/how-to-gain-access-to-metoffices-github-private-repositories/6342 "2026-04-30T01:14:22Z")
If you are developing an ACCESS model of the 3rd generation with the atmosphere or the land model (such as ACCESS-CM3, AM3, rAM3 or ESM3), you may need read or write access to the UM, JULES or GCOM source codes. These re… --- ## [Using xp65 in UM suites](https://forum.access-hive.org.au/t/using-xp65-in-um-suites/5292)
**Author:** [@BecJackson](https://forum.access-hive.org.au/u/BecJackson)\ **Replies:** 16\ **Last updated:** [28 October 2025 00:56 UTC](https://forum.access-hive.org.au/t/using-xp65-in-um-suites/5292 "2025-10-28T00:56:19Z")
Hi everyone, I’m having trouble using the xp65 analysis3 environments in the UM RNS, specifically using iris. My suite (u-de207) includes some extra python scripts to post-process the model output, which I’m trying to u… --- ## [ACCESS-AM2 BUILD error](https://forum.access-hive.org.au/t/access-am2-build-error/4780)
**Author:** [@alanah.chapman](https://forum.access-hive.org.au/u/alanah.chapman)\ **Replies:** 6\ **Last updated:** [11 August 2025 02:10 UTC](https://forum.access-hive.org.au/t/access-am2-build-error/4780 "2025-08-11T02:10:13Z")
Hi :slight\_smile: I am setting up an ACCESS-AM2 model run, and I have gotten an error in the BUILD –\> fcm\_make\_um step. I need to compile from source, but I have gotten this error: Having a closer look within the su… --- ## [Location of ACCESS land masks for ACCESS-AM2 sea-ice/SST ancillary creation](https://forum.access-hive.org.au/t/location-of-access-land-masks-for-access-am2-sea-ice-sst-ancillary-creation/4695)
**Author:** [@alanah.chapman](https://forum.access-hive.org.au/u/alanah.chapman)\ **Replies:** 4\ **Last updated:** [18 July 2025 02:23 UTC](https://forum.access-hive.org.au/t/location-of-access-land-masks-for-access-am2-sea-ice-sst-ancillary-creation/4695 "2025-07-18T02:23:39Z")
Hi everyone, I’m creating some updated sea-ice and SST ancillary datasets for some ACCESS-AM2 model experiments I’m doing, based off of methods and code described by the UK MetOffice here. I have been able to create the… --- ## [ACCESS-CM2 changing STASH request](https://forum.access-hive.org.au/t/access-cm2-changing-stash-request/4475)
**Author:** [@wghuneke](https://forum.access-hive.org.au/u/wghuneke)\ **Replies:** 4\ **Last updated:** [8 May 2025 06:41 UTC](https://forum.access-hive.org.au/t/access-cm2-changing-stash-request/4475 "2025-05-08T06:41:51Z")
Hi, I want to output additional daily variables for a ACCESS-CM2 simulation. All but one variable are listed in the STASH request list, so I can just tick them. For surface pressure, however, I don’t see the option for … --- ## [Um2nc: a utility for converting Unified Model files to netCDF](https://forum.access-hive.org.au/t/um2nc-a-utility-for-converting-unified-model-files-to-netcdf/3968)
**Author:** [@spencerwong](https://forum.access-hive.org.au/u/spencerwong)\ **Replies:** 0\ **Last updated:** [5 December 2024 04:12 UTC](https://forum.access-hive.org.au/t/um2nc-a-utility-for-converting-unified-model-files-to-netcdf/3968 "2024-12-05T04:12:00Z")
To receive email notifications when a new release is announced, please \[watch\] this topic. um2nc :rocket: Release: 1.0.0 um2nc is a Python utility for converting Unified Model (UM) data files to netCDF. um2nc is deve… --- ## [Building from UM7 repo](https://forum.access-hive.org.au/t/building-from-um7-repo/3815)
**Author:** [@Jhan](https://forum.access-hive.org.au/u/Jhan)\ **Replies:** 26\ **Last updated:** [25 October 2024 05:45 UTC](https://forum.access-hive.org.au/t/building-from-um7-repo/3815 "2024-10-25T05:45:43Z")
Hi, I have recently checked out a development branch from the UM7 repo. I never have and perhaps never will build the mom executable. spack list showed me that there is a um7 package, so I tried spack develop um7@deve… --- ## [Independent reconfiguration of the orbital parameters to simulate a new climate state](https://forum.access-hive.org.au/t/independent-reconfiguration-of-the-orbital-parameters-to-simulate-a-new-climate-state/3664)
**Author:** [@HIMADRI\_SAINI](https://forum.access-hive.org.au/u/HIMADRI_SAINI)\ **Replies:** 6\ **Last updated:** [22 October 2024 06:14 UTC](https://forum.access-hive.org.au/t/independent-reconfiguration-of-the-orbital-parameters-to-simulate-a-new-climate-state/3664 "2024-10-22T06:14:25Z")
Hello, I am in the process of setting up an LGM climate simulation (which occurred around 21,000 years ago, or 21 ka) using ACCESS-ESM1.5. Since it was mentioned during the ACCESS breakout session that reconfiguring the… --- ## [Joint development of the regional nesting suite](https://forum.access-hive.org.au/t/joint-development-of-the-regional-nesting-suite/3631)
**Author:** [@EmmaHoward](https://forum.access-hive.org.au/u/EmmaHoward)\ **Replies:** 3\ **Last updated:** [15 October 2024 23:09 UTC](https://forum.access-hive.org.au/t/joint-development-of-the-regional-nesting-suite/3631 "2024-10-15T23:09:29Z")
We held a breakout session on Australian suite development in the RNS at the 2024 ACCESS-NRI workshop. This thread is to document the discussion and actions following the session. The session discussed the means by whic… --- ## [Rearrange UM\_v7 branches to allow further ACCESS-ESM1.5 and ACCESS-ESM1.6 development?](https://forum.access-hive.org.au/t/rearrange-um-v7-branches-to-allow-further-access-esm1-5-and-access-esm1-6-development/2137)
**Author:** [@paulleopardi](https://forum.access-hive.org.au/u/paulleopardi)\ **Replies:** 1\ **Last updated:** [18 September 2024 05:31 UTC](https://forum.access-hive.org.au/t/rearrange-um-v7-branches-to-allow-further-access-esm1-5-and-access-esm1-6-development/2137 "2024-09-18T05:31:06Z")
I propose that we create an access-esm1.5 branch of the UM\_v7 repository, so that the um7 Spack package can use version access-esm1.5 and branch access-esm1.5 as per the other access-esm1.5 related packages. This is p… --- ## [Building UM executables: draft strategy](https://forum.access-hive.org.au/t/building-um-executables-draft-strategy/2233)
**Author:** [@paulleopardi](https://forum.access-hive.org.au/u/paulleopardi)\ **Replies:** 1\ **Last updated:** [18 July 2024 06:37 UTC](https://forum.access-hive.org.au/t/building-um-executables-draft-strategy/2233 "2024-07-18T06:37:10Z")
This post will contain a strategy for building current (UM13.X) UM executables on Gadi. Roughly, the goal is to be able to use Spack to build all relevant UM13.X executables from source code controlled by private GitHub … --- ## [UM Nesting Suite - can't run nci\_era5grib](https://forum.access-hive.org.au/t/um-nesting-suite-cant-run-nci-era5grib/2115)
**Author:** [@ZhangchengPei](https://forum.access-hive.org.au/u/ZhangchengPei)\ **Replies:** 7\ **Last updated:** [24 May 2024 01:36 UTC](https://forum.access-hive.org.au/t/um-nesting-suite-cant-run-nci-era5grib/2115 "2024-05-24T01:36:12Z")
Hi Team, I’m running the RNS of RAL3p2 over Davis, Antarctica. The ERA5 is used to drive the model. While the model fails when run the nci\_era5grib, showing the following information in job.err and job.out. job.err U… --- ## [Mosrs-auth not working after maintenance](https://forum.access-hive.org.au/t/mosrs-auth-not-working-after-maintenance/2071)
**Author:** [@sonyafiddes](https://forum.access-hive.org.au/u/sonyafiddes)\ **Replies:** 10\ **Last updated:** [6 May 2024 04:52 UTC](https://forum.access-hive.org.au/t/mosrs-auth-not-working-after-maintenance/2071 "2024-05-06T04:52:36Z")
Hi Team, @ZhangchengPei and I are having some issues with mosrs-auth today - see below. It looks like it has been updated, so does anyone know what we need to do to get it working? Cheers, Sonya \[slf563@gadi-login-04… --- ## [Recreate river runoff from scratch ACCESS-ESM1.5](https://forum.access-hive.org.au/t/recreate-river-runoff-from-scratch-access-esm1-5/2013)
**Author:** [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Replies:** 14\ **Last updated:** [3 May 2024 05:09 UTC](https://forum.access-hive.org.au/t/recreate-river-runoff-from-scratch-access-esm1-5/2013 "2024-05-03T05:09:28Z")
Hi, I am wondering if anyone knows how to re-configure the river runoff in ACCESS-ESM1.5 (which uses UM7.3) to something totally new? (Or any other versions of the UM or the coupled model?) I have gathered that the mod… --- ## [UM Nesting Suite - SST ancillary not being used?](https://forum.access-hive.org.au/t/um-nesting-suite-sst-ancillary-not-being-used/1450)
**Author:** [@BecJackson](https://forum.access-hive.org.au/u/BecJackson)\ **Replies:** 13\ **Last updated:** [17 October 2023 04:32 UTC](https://forum.access-hive.org.au/t/um-nesting-suite-sst-ancillary-not-being-used/1450 "2023-10-17T04:32:18Z")
Hi everyone, I’m trying to run the RNS with a modified SST ancillary file, but the SST ancillary doesn’t appear to be used. There is a note under the sstsmc\_anc option (make extra SST and SMC ancillaries) that says ‘the… --- ## [UM Ancillary files database/documentation (We need your help! 🆘)](https://forum.access-hive.org.au/t/um-ancillary-files-database-documentation-we-need-your-help/388)
**Author:** [@atteggiani](https://forum.access-hive.org.au/u/atteggiani)\ **Replies:** 3\ **Last updated:** [3 August 2023 01:59 UTC](https://forum.access-hive.org.au/t/um-ancillary-files-database-documentation-we-need-your-help/388 "2023-08-03T01:59:46Z")
Dear ACCESS and UM users, At ACCESS-NRI we thought is would be useful to start collecting and documenting multiple sets of UM ancillary files, to facilitate the job of users needing to run a simulation and not sure whic…