# Earth System **URL:** https://forum.access-hive.org.au/c/esm/35.md?page=2 [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) **Page:** 3 --- ## [Set of initialised ACCESS-ESM1-5 PI ensembles to explore predictability](https://forum.access-hive.org.au/t/set-of-initialised-access-esm1-5-pi-ensembles-to-explore-predictability/4621)
**Author:** [@jemmajeffree](https://forum.access-hive.org.au/u/jemmajeffree)\ **Replies:** 7\ **Last updated:** [25 August 2025 01:54 UTC](https://forum.access-hive.org.au/t/set-of-initialised-access-esm1-5-pi-ensembles-to-explore-predictability/4621 "2025-08-25T01:54:22Z")
\*If you would use this data, let me know what variables you are interested in\* Experiment title :bell:: ACCESS-ESM1-5 PI initialised ensembles Summary :bell:: Initialise 10 ensemble members, from 10 distinct initial co… --- ## [Experiment proposal: Idealised experiments exploring the strength of Atlantic-Pacific interbasin interactions](https://forum.access-hive.org.au/t/experiment-proposal-idealised-experiments-exploring-the-strength-of-atlantic-pacific-interbasin-interactions/4768)
**Author:** [@ShayneM](https://forum.access-hive.org.au/u/ShayneM)\ **Replies:** 4\ **Last updated:** [14 August 2025 03:52 UTC](https://forum.access-hive.org.au/t/experiment-proposal-idealised-experiments-exploring-the-strength-of-atlantic-pacific-interbasin-interactions/4768 "2025-08-14T03:52:52Z")
Experiment title :bell:: Investigating Mechanisms of Trans-Basin Interactions Between the Tropical Pacific and Atlantic Oceans Summary :bell:: This experiment investigates the mechanisms of trans-basin interactions betw… --- ## [Workflow when changing atmosphere/namelist um\_env.yaml during a run](https://forum.access-hive.org.au/t/workflow-when-changing-atmosphere-namelist-um-env-yaml-during-a-run/4747)
**Author:** [@LaurieM](https://forum.access-hive.org.au/u/LaurieM)\ **Replies:** 6\ **Last updated:** [13 August 2025 01:16 UTC](https://forum.access-hive.org.au/t/workflow-when-changing-atmosphere-namelist-um-env-yaml-during-a-run/4747 "2025-08-13T01:16:34Z")
Hello, Before I make a mistake I want to double check the correct workflow when changing some parameters/flags in the atmosphere/namelist and um\_env.yaml during a run. In the experiment I am running I use no carbon emi… --- ## [ACCESS-CM2 filemove error](https://forum.access-hive.org.au/t/access-cm2-filemove-error/4769)
**Author:** [@wghuneke](https://forum.access-hive.org.au/u/wghuneke)\ **Replies:** 6\ **Last updated:** [12 August 2025 04:01 UTC](https://forum.access-hive.org.au/t/access-cm2-filemove-error/4769 "2025-08-12T04:01:23Z")
Hi, I’m currently running a CM2-025 simulation which was working fine. I now get this filemove error: Expected name /home/581/wgh581/cylc-run/u-cz861\_piControl/work/00170101/coupled/ATM\_RUNDIR/History\_Data/cz861\_piCont… --- ## [Modify a UM restart file to work with new vegetation distribution](https://forum.access-hive.org.au/t/modify-a-um-restart-file-to-work-with-new-vegetation-distribution/4089)
**Author:** [@RachelLaw](https://forum.access-hive.org.au/u/RachelLaw)\ **Replies:** 33\ **Last updated:** [11 August 2025 02:04 UTC](https://forum.access-hive.org.au/t/modify-a-um-restart-file-to-work-with-new-vegetation-distribution/4089 "2025-08-11T02:04:29Z")
Since my latest need to modify an ACCESS-ESM1.5/6 restart has some similarity to this previous thread, I’m continuing here rather than starting a new topic. The aim here is to create a restart file suitable for running … --- ## [Problems decoding time dimension for ACCESS-ESM-1.5 long runs](https://forum.access-hive.org.au/t/problems-decoding-time-dimension-for-access-esm-1-5-long-runs/4727)
**Author:** [@georgyfalster](https://forum.access-hive.org.au/u/georgyfalster)\ **Replies:** 6\ **Last updated:** [22 July 2025 09:42 UTC](https://forum.access-hive.org.au/t/problems-decoding-time-dimension-for-access-esm-1-5-long-runs/4727 "2025-07-22T09:42:04Z")
I’m run some long simulations with the ACCESS-ESM 1.5. I’m trying to collate the output from the native output folders (one per year) to something more useable. When I read in outputs from the ocean model, they look fin… --- ## [Longwave emissivity in ACCESS-CM](https://forum.access-hive.org.au/t/longwave-emissivity-in-access-cm/4715)
**Author:** [@felix-schmitt](https://forum.access-hive.org.au/u/felix-schmitt)\ **Replies:** 0\ **Last updated:** [17 July 2025 08:25 UTC](https://forum.access-hive.org.au/t/longwave-emissivity-in-access-cm/4715 "2025-07-17T08:25:55Z")
Dear all, For my post-doc position, I recently started to work on atmospheric radiative simulations using CM outputs from CMIP6. My main concern is to retrieve the land, sea and sea-ice surface longwave emissivity, whic… --- ## [ACCESS-CM2-025 piControl simulation: wishlist for output?](https://forum.access-hive.org.au/t/access-cm2-025-picontrol-simulation-wishlist-for-output/4707)
**Author:** [@wghuneke](https://forum.access-hive.org.au/u/wghuneke)\ **Replies:** 6\ **Last updated:** [17 July 2025 02:37 UTC](https://forum.access-hive.org.au/t/access-cm2-025-picontrol-simulation-wishlist-for-output/4707 "2025-07-17T02:37:58Z")
Hello, I am about to start a ~250 year piControl simulation with ACCESS-CM2-025 (ocean at 0.25°, atm at n96). I am keen to know if you are interested in any particular output that I should add, both for the spin-up and/… --- ## [Experiment proposal: ACCESS-CM2-025 piControl](https://forum.access-hive.org.au/t/experiment-proposal-access-cm2-025-picontrol/4708)
**Author:** [@wghuneke](https://forum.access-hive.org.au/u/wghuneke)\ **Replies:** 6\ **Last updated:** [17 July 2025 00:40 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-cm2-025-picontrol/4708 "2025-07-17T00:40:42Z")
Experiment proposal for compute and storage on lg87. Experiment title: ACCESS-CM2-025 piControl Description: Run a piControl simulation with ACCESS-CM2 at 0.25° ocean resolution. Use simulation as (i) control run for p… --- ## [How do I plot a streamfunction for the UM?](https://forum.access-hive.org.au/t/how-do-i-plot-a-streamfunction-for-the-um/4685)
**Author:** [@jemmajeffree](https://forum.access-hive.org.au/u/jemmajeffree)\ **Replies:** 1\ **Last updated:** [15 July 2025 00:15 UTC](https://forum.access-hive.org.au/t/how-do-i-plot-a-streamfunction-for-the-um/4685 "2025-07-15T00:15:11Z")
In theory I understand how streamfunctions work, but I’m having trouble migrating from ocean-model-land (where velocities are defined in m/s, and model levels are in m) to UM-atmosphere-model-land (where vertical velocit… --- ## [ESMValTool Community Meeting - July](https://forum.access-hive.org.au/t/esmvaltool-community-meeting-july/4667)
**Author:** [@Flick.Chun](https://forum.access-hive.org.au/u/Flick.Chun)\ **Replies:** 1\ **Last updated:** [9 July 2025 00:54 UTC](https://forum.access-hive.org.au/t/esmvaltool-community-meeting-july/4667 "2025-07-09T00:54:13Z")
Hello! We are hosting an ESMValTool community meeting in pacific friendly time zones. :tada: If you would like to join please fill out this when2meet to find a time for the next community monthly meeting. Please also … --- ## [Post-processing of ACCESS-CM2 sea ice freeze and melt terms](https://forum.access-hive.org.au/t/post-processing-of-access-cm2-sea-ice-freeze-and-melt-terms/4669)
**Author:** [@hrsdawson](https://forum.access-hive.org.au/u/hrsdawson)\ **Replies:** 13\ **Last updated:** [8 July 2025 09:34 UTC](https://forum.access-hive.org.au/t/post-processing-of-access-cm2-sea-ice-freeze-and-melt-terms/4669 "2025-07-08T09:34:34Z")
I’ve got a question about the post-processing of the freeze , melt and thermodynamic/dynamic terms in ACCESS-CM2. I believe the net freeze - melt terms should match the thermodynamic term, but the latter is ~3 orders of … --- ## [Updating number of CPUs in UM7.3 for ACCESS-ESM1.5](https://forum.access-hive.org.au/t/updating-number-of-cpus-in-um7-3-for-access-esm1-5/4668)
**Author:** [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Replies:** 9\ **Last updated:** [7 July 2025 23:28 UTC](https://forum.access-hive.org.au/t/updating-number-of-cpus-in-um7-3-for-access-esm1-5/4668 "2025-07-07T23:28:58Z")
Hi, I am looking to update some older runs using ACCESS-ESM1.5 that are currently running with 384 CPUs. I understand the new releases are using 432 CPUS, with the UM changing from 192 CPUs to 240 CPUs. I would like to … --- ## [ESM1.5 payu: Model exited issue](https://forum.access-hive.org.au/t/esm1-5-payu-model-exited-issue/3692)
**Author:** [@YanxuanD](https://forum.access-hive.org.au/u/YanxuanD)\ **Replies:** 18\ **Last updated:** [4 July 2025 03:50 UTC](https://forum.access-hive.org.au/t/esm1-5-payu-model-exited-issue/3692 "2025-07-04T03:50:55Z")
Hi Spencer, I’m facing a similar issue like Himadri, with the error “payu: Model exited with error code 1; aborting.” at restart184. I’m not sure if this is a leap year problem, but I tried using the warm-start.sh scri… --- ## [Change forcing from PD to piControl in CM2](https://forum.access-hive.org.au/t/change-forcing-from-pd-to-picontrol-in-cm2/4664)
**Author:** [@wghuneke](https://forum.access-hive.org.au/u/wghuneke)\ **Replies:** 4\ **Last updated:** [4 July 2025 02:26 UTC](https://forum.access-hive.org.au/t/change-forcing-from-pd-to-picontrol-in-cm2/4664 "2025-07-04T02:26:51Z")
Hello, How do I change a CM2 suite from present day to pre-industrial? Thanks, Wilma --- ## [Last chance to vote on proposed changes to UM netCDF conversion](https://forum.access-hive.org.au/t/last-chance-to-vote-on-proposed-changes-to-um-netcdf-conversion/4628)
**Author:** [@MartinDix](https://forum.access-hive.org.au/u/MartinDix)\ **Replies:** 0\ **Last updated:** [19 June 2025 05:54 UTC](https://forum.access-hive.org.au/t/last-chance-to-vote-on-proposed-changes-to-um-netcdf-conversion/4628 "2025-06-19T05:54:57Z")
A reminder that voting on the proposed changes to netCDF conversion in the ACCESS climate models closes Friday 20th. --- ## [ACCESS-ESM1.5 collate error](https://forum.access-hive.org.au/t/access-esm1-5-collate-error/4617)
**Author:** [@eliocamp](https://forum.access-hive.org.au/u/eliocamp)\ **Replies:** 2\ **Last updated:** [17 June 2025 01:00 UTC](https://forum.access-hive.org.au/t/access-esm1-5-collate-error/4617 "2025-06-17T01:00:33Z")
I’m running a 3-year experiment using 1-year runs and payu run --nruns 3. I woke up to a PBS error email. One job (with the name of the experiment and “\_c” had failed with PBS: job killed: walltime 3652 exceeded limit 3… --- ## [Exp. crashing](https://forum.access-hive.org.au/t/exp-crashing/4598)
**Author:** [@LaurieM](https://forum.access-hive.org.au/u/LaurieM)\ **Replies:** 1\ **Last updated:** [12 June 2025 04:59 UTC](https://forum.access-hive.org.au/t/exp-crashing/4598 "2025-06-12T04:59:20Z")
Hello, I managed to run a meltwater experiment for 20 years without issue, after which the experiment crashed. I tried to restart it from the previous year, but it crashed again after 17min of run time, and it exited wi… --- ## [Setting up ensemble runs in ACCESS-CM2](https://forum.access-hive.org.au/t/setting-up-ensemble-runs-in-access-cm2/4596)
**Author:** [@huazhen](https://forum.access-hive.org.au/u/huazhen)\ **Replies:** 7\ **Last updated:** [11 June 2025 23:37 UTC](https://forum.access-hive.org.au/t/setting-up-ensemble-runs-in-access-cm2/4596 "2025-06-11T23:37:52Z")
Hi there, I want to set up several ensemble runs in ACCESS-CM2. I have seen a previous post about setting up ensemble runs (Ensemble runs with ACCESS-CM2 - #5 by ars599). But the files they shared are not in those paths… --- ## [Proposed changes to variable names in UM netCDF conversion](https://forum.access-hive.org.au/t/proposed-changes-to-variable-names-in-um-netcdf-conversion/4599)
**Author:** [@MartinDix](https://forum.access-hive.org.au/u/MartinDix)\ **Replies:** 0\ **Last updated:** [10 June 2025 03:52 UTC](https://forum.access-hive.org.au/t/proposed-changes-to-variable-names-in-um-netcdf-conversion/4599 "2025-06-10T03:52:47Z")
Feedback needed - vote below on proposed changes At the moment the netCDF conversion used by ESM1.5/6 creates variable names based on the stash code, e.g. fld\_s00i024 for surface temperature rather than ts. Many of the v… --- ## [Switching to single variable files in the ESM UM netcdf conversion](https://forum.access-hive.org.au/t/switching-to-single-variable-files-in-the-esm-um-netcdf-conversion/4603)
**Author:** [@MartinDix](https://forum.access-hive.org.au/u/MartinDix)\ **Replies:** 0\ **Last updated:** [11 June 2025 03:05 UTC](https://forum.access-hive.org.au/t/switching-to-single-variable-files-in-the-esm-um-netcdf-conversion/4603 "2025-06-11T03:05:42Z")
Feedback needed - vote below on proposed changes ESM1.5/6 ocean model output has single variable files with names like ocean-2d-surface\_temp-1monthly-mean-ym\_0101\_01.nc which have a year of data. The atmosphere netCDF … --- ## [Email notifications for failed ACCESS-CM2 jobs](https://forum.access-hive.org.au/t/email-notifications-for-failed-access-cm2-jobs/4531)
**Author:** [@zoegillett27](https://forum.access-hive.org.au/u/zoegillett27)\ **Replies:** 1\ **Last updated:** [11 June 2025 01:54 UTC](https://forum.access-hive.org.au/t/email-notifications-for-failed-access-cm2-jobs/4531 "2025-06-11T01:54:54Z")
Hi all, When ACCESS-CM2 jobs were run from Accessdev, I would receive an email notification whenever a job failed. Is this still available? It works for PBS jobs on Gadi and would be great to have again to reduce the ne… --- ## [Different cycling frequencies in ACCESS-CM2 lead to different solutions](https://forum.access-hive.org.au/t/different-cycling-frequencies-in-access-cm2-lead-to-different-solutions/4539)
**Author:** [@hrsdawson](https://forum.access-hive.org.au/u/hrsdawson)\ **Replies:** 3\ **Last updated:** [28 May 2025 23:06 UTC](https://forum.access-hive.org.au/t/different-cycling-frequencies-in-access-cm2-lead-to-different-solutions/4539 "2025-05-28T23:06:06Z")
I’ve noticed that changing the cycling frequency from 1 year to 1 month when running ACCESS-CM2 leads to different results. For example, the plots below show globally averaged ocean metrics in a simulation run at yearly … --- ## [Salinity budget calculation in access-esm](https://forum.access-hive.org.au/t/salinity-budget-calculation-in-access-esm/4496)
**Author:** [@HIMADRI\_SAINI](https://forum.access-hive.org.au/u/HIMADRI_SAINI)\ **Replies:** 7\ **Last updated:** [23 May 2025 02:02 UTC](https://forum.access-hive.org.au/t/salinity-budget-calculation-in-access-esm/4496 "2025-05-23T02:02:43Z")
Hi I’ve emailed this issue to @MartinDix, but I thought I’d post it here as well in case it’s relevant to others. In my setup of the Last Glacial Maximum (LGM) climate with ACCESS-ESM (present in /home/561/hs2549/acces… --- ## [Spin-up history of the ACCESS-ESM1.5 Pre-industrial run](https://forum.access-hive.org.au/t/spin-up-history-of-the-access-esm1-5-pre-industrial-run/4381)
**Author:** [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Replies:** 5\ **Last updated:** [19 May 2025 23:45 UTC](https://forum.access-hive.org.au/t/spin-up-history-of-the-access-esm1-5-pre-industrial-run/4381 "2025-05-19T23:45:55Z")
Hi, I have a query about the spin-up history of the ACCESS-ESM1.5 pre-industrial release. How many years has this configuration been spun-up for? (I.e. is there some equilibration built into it already?) Is there some… --- ## [Warm starts in ACCESS-ESM1.5](https://forum.access-hive.org.au/t/warm-starts-in-access-esm1-5/4486)
**Author:** [@Pat](https://forum.access-hive.org.au/u/Pat)\ **Replies:** 8\ **Last updated:** [14 May 2025 00:26 UTC](https://forum.access-hive.org.au/t/warm-starts-in-access-esm1-5/4486 "2025-05-14T00:26:01Z")
Hi everyone, I am currently attempting to use the latest release of the ACCESS-ESM1.5 model to perform a series of freshwater perturbation experiments using the run ACCESS-ESM1.5 instructions. I am trying to branch off … --- ## [Hosting experiment repo on Github](https://forum.access-hive.org.au/t/hosting-experiment-repo-on-github/4443)
**Author:** [@georgyfalster](https://forum.access-hive.org.au/u/georgyfalster)\ **Replies:** 24\ **Last updated:** [9 May 2025 04:04 UTC](https://forum.access-hive.org.au/t/hosting-experiment-repo-on-github/4443 "2025-05-09T04:04:55Z")
With @spencerwong 's guidance, I/we have made some slight modifications to the ACCESS-ESM1.5 release-preindustrial+concentrations configuration to run it in pacemaker mode - where SSTs are restored to specific values eac… --- ## [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 … --- ## [ACCESS-ESM1.5 in Emissions mode](https://forum.access-hive.org.au/t/access-esm1-5-in-emissions-mode/4382)
**Author:** [@LaurieM](https://forum.access-hive.org.au/u/LaurieM)\ **Replies:** 2\ **Last updated:** [8 May 2025 03:27 UTC](https://forum.access-hive.org.au/t/access-esm1-5-in-emissions-mode/4382 "2025-05-08T03:27:16Z")
Hello, So the model runs fine and atmospheric CO2 is not constant, however it is not affected by the emissions. I do not get any error message, so I am not sure where the error is coming from. I followed the steps that … --- ## [Setting up ACCESS](https://forum.access-hive.org.au/t/setting-up-access/330)
**Author:** [@Sramana1](https://forum.access-hive.org.au/u/Sramana1)\ **Replies:** 13\ **Last updated:** [24 April 2025 02:36 UTC](https://forum.access-hive.org.au/t/setting-up-access/330 "2025-04-24T02:36:54Z")
Hi ACCESS, I am new to the ACCESS model. I plan to use high-resolution ACCESS-CM2 for AMIP-style experiments. Could you please help me set up an account and other related permission on accessdev so I can try to run the m… [Previous page](https://forum.access-hive.org.au/c/esm/35.md?page=1) [Next page](https://forum.access-hive.org.au/c/esm/35.md?page=3)