# Earth System **URL:** https://forum.access-hive.org.au/c/esm/35.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) --- ## [About the Earth System category](https://forum.access-hive.org.au/t/about-the-earth-system-category/92)
**Author:** [@Aidan](https://forum.access-hive.org.au/u/Aidan)\ **Replies:** 0
Coupled, Earth System and Paleoclimate Modelling --- ## [CM3 Dev-Eval Working group: Meeting minutes](https://forum.access-hive.org.au/t/cm3-dev-eval-working-group-meeting-minutes/5393)
**Author:** [@cbull](https://forum.access-hive.org.au/u/cbull)\ **Replies:** 12\ **Last updated:** [15 October 2026 23:09 UTC](https://forum.access-hive.org.au/t/cm3-dev-eval-working-group-meeting-minutes/5393 "2026-10-15T23:09:06Z")
Meeting guidelines Below are posts for each CM3 Dev-Eval Working group meeting currently focused on CM3. Before each meeting, we’ll create a placeholder post where participants are welcome to post: discussion items; li… --- ## [ESM1.5 flux corrected projections](https://forum.access-hive.org.au/t/esm1-5-flux-corrected-projections/7086)
**Author:** [@ShayneM](https://forum.access-hive.org.au/u/ShayneM)\ **Replies:** 4\ **Last updated:** [14 October 2026 01:46 UTC](https://forum.access-hive.org.au/t/esm1-5-flux-corrected-projections/7086 "2026-10-14T01:46:33Z")
Experiment title :bell:: ESM1.5 flux corrected projections Summary :bell:: As discussed here ( Flux corrected projections with ESM1.5 ) I am currently planning on running flux corrected projection with ESM1.5. Over the … --- ## [ESM Working Group Announce](https://forum.access-hive.org.au/t/esm-working-group-announce/567)
**Author:** [@Aidan](https://forum.access-hive.org.au/u/Aidan)\ **Replies:** 98\ **Last updated:** [11 October 2026 22:38 UTC](https://forum.access-hive.org.au/t/esm-working-group-announce/567 "2026-10-11T22:38:10Z")
This topic will be used for announcements to the Earth System Modelling Working Group by the leadership team. For example, we will announce meetings, workshops and events through this topic. Watch this topic to receive… --- ## [ACCESS CM3 technical meetings announce](https://forum.access-hive.org.au/t/access-cm3-technical-meetings-announce/5418)
**Author:** [@MartinDix](https://forum.access-hive.org.au/u/MartinDix)\ **Replies:** 22\ **Last updated:** [7 October 2026 01:33 UTC](https://forum.access-hive.org.au/t/access-cm3-technical-meetings-announce/5418 "2026-10-07T01:33:06Z")
As flagged at the recent ACCESS CM3 evaluation meeting we’re planning to make the CM3 technical meetings more open and better organised. Meetings are every second Wednesday 2-3pm. --- ## [ESM Working group: Meeting notes 2026](https://forum.access-hive.org.au/t/esm-working-group-meeting-notes-2026/5854)
**Author:** [@spencerwong](https://forum.access-hive.org.au/u/spencerwong)\ **Replies:** 5\ **Last updated:** [29 September 2026 06:09 UTC](https://forum.access-hive.org.au/t/esm-working-group-meeting-notes-2026/5854 "2026-09-29T06:09:20Z")
Notes from each meeting of the ESM Working Group are added as a reply to this topic. Make each reply a wiki post, that way other attendees can edit the notes. This can greatly reduce the burden of note-taking allowing t… --- ## [RiskMIP concept proposal - Jeremy Fyke](https://forum.access-hive.org.au/t/riskmip-concept-proposal-jeremy-fyke/7041)
**Author:** [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Replies:** 0\ **Last updated:** [29 September 2026 02:14 UTC](https://forum.access-hive.org.au/t/riskmip-concept-proposal-jeremy-fyke/7041 "2026-09-29T02:14:17Z")
Dear ESM community, Thanks a lot to Jeremy Fyke and David Huard from the CCCma for joining us today. Jeremy was keen to send around the RiskMIP concept proposal for community feedback. It is here: RiskMIP-concept-propo… --- ## [Query regarding accuracy of the mixed layer depth diagnostic in ACCESS-CM2](https://forum.access-hive.org.au/t/query-regarding-accuracy-of-the-mixed-layer-depth-diagnostic-in-access-cm2/6996)
**Author:** [@hrsdawson](https://forum.access-hive.org.au/u/hrsdawson)\ **Replies:** 4\ **Last updated:** [23 September 2026 00:55 UTC](https://forum.access-hive.org.au/t/query-regarding-accuracy-of-the-mixed-layer-depth-diagnostic-in-access-cm2/6996 "2026-09-23T00:55:16Z")
Hi all, I’ve got a query about the mixed layer diagnostic in ACCESS-CM2. The model output I’m using (pre-industrial configuration) shows very deep mixed layers in the Ross Sea (left panel below). However, the tempera… --- ## [Experiment proposal: ESM-forced ocean runs at \>0.25deg resolution](https://forum.access-hive.org.au/t/experiment-proposal-esm-forced-ocean-runs-at-0-25deg-resolution/7009)
**Author:** [@ongqingyee](https://forum.access-hive.org.au/u/ongqingyee)\ **Replies:** 1\ **Last updated:** [21 September 2026 23:30 UTC](https://forum.access-hive.org.au/t/experiment-proposal-esm-forced-ocean-runs-at-0-25deg-resolution/7009 "2026-09-21T23:30:30Z")
Experiment title :bell:: pacific warming patterns in a high resolution ocean Summary :bell:: Running ACCESS-OM2 at 0.25 degree (and 0.1 deg, if there is excess), configured to take ESM1.5 atmospheric forcing inputs. Ai… --- ## [Experiment Proposal: ACCESS-AM3 beta-release N96 long run and N512 extension](https://forum.access-hive.org.au/t/experiment-proposal-access-am3-beta-release-n96-long-run-and-n512-extension/7004)
**Author:** [@lishx](https://forum.access-hive.org.au/u/lishx)\ **Replies:** 2\ **Last updated:** [17 September 2026 06:22 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-am3-beta-release-n96-long-run-and-n512-extension/7004 "2026-09-17T06:22:27Z")
We propose to run two ACCESS-AM3 experiments using the current beta release: Re-run the existing N96 long run (1983–2014). Extend the N512 beta-release simulation through 2009–2010, following the 2007–2008 N512 experim… --- ## [Experiment Proposal: ACCESS-ESM1.5 Pacific Warming AMIP Experiments II](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-pacific-warming-amip-experiments-ii/6711)
**Author:** [@abhik](https://forum.access-hive.org.au/u/abhik)\ **Replies:** 7\ **Last updated:** [17 September 2026 03:18 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-pacific-warming-amip-experiments-ii/6711 "2026-09-17T03:18:25Z")
Experiment title :bell:: ACCESS-ESM1.5 Pacific Warming AMIP Experiments Summary :bell:: Following our recent Pacific zonal SST warming pattern AMIP experiments in ACCESS ESM1.5, we plan to run a set of new experiments … --- ## [ACCESS ESM1.6 experiment segfault](https://forum.access-hive.org.au/t/access-esm1-6-experiment-segfault/6974)
**Author:** [@WillemH](https://forum.access-hive.org.au/u/WillemH)\ **Replies:** 11\ **Last updated:** [15 September 2026 07:42 UTC](https://forum.access-hive.org.au/t/access-esm1-6-experiment-segfault/6974 "2026-09-15T07:42:46Z")
Hi everyone, I have been running a freshwater hosing experiment with v1.6 of the ESM and it is now consistently crashing after 272 years of integration due to a segfault, apparently originating somewhere in the atmosphe… --- ## [Flux corrected projections with ESM1.5](https://forum.access-hive.org.au/t/flux-corrected-projections-with-esm1-5/6906)
**Author:** [@ShayneM](https://forum.access-hive.org.au/u/ShayneM)\ **Replies:** 2\ **Last updated:** [26 August 2026 01:25 UTC](https://forum.access-hive.org.au/t/flux-corrected-projections-with-esm1-5/6906 "2026-08-26T01:25:55Z")
Hi All, I am in the process of setting up a flux corrected version of ESM1.5. I am following the experimental set up from this paper (https://essopenarchive.org/doi/pdf/10.22541/essoar.15005957/v1?download=true&redirect… --- ## [Running payu sync from command line - expected write location](https://forum.access-hive.org.au/t/running-payu-sync-from-command-line-expected-write-location/6750)
**Author:** [@alexnorton](https://forum.access-hive.org.au/u/alexnorton)\ **Replies:** 14\ **Last updated:** [12 August 2026 23:59 UTC](https://forum.access-hive.org.au/t/running-payu-sync-from-command-line-expected-write-location/6750 "2026-08-12T23:59:40Z")
I recently set up a piControl run with ESM1.6. I did not initially enable payu sync in the config.yaml. After it had run ~140 years the run stopped, so I tried to run payu sync myself to ensure it was backed up to the ri… --- ## [FastTrack "Production Runs" experiments page](https://forum.access-hive.org.au/t/fasttrack-production-runs-experiments-page/6752)
**Author:** [@Jhan](https://forum.access-hive.org.au/u/Jhan)\ **Replies:** 3\ **Last updated:** [7 August 2026 04:47 UTC](https://forum.access-hive.org.au/t/fasttrack-production-runs-experiments-page/6752 "2026-08-07T04:47:53Z")
In NCI downtime I was planning to review and add to the experiments page. Apart from the experiments listed here being quite numerous, the Headline of the page is that these are “SpinUp” experiments. Should we include in… --- ## [Equatorial Pacific upwelling in rCM3 at different resolutions](https://forum.access-hive.org.au/t/equatorial-pacific-upwelling-in-rcm3-at-different-resolutions/6712)
**Author:** [@jemmajeffree](https://forum.access-hive.org.au/u/jemmajeffree)\ **Replies:** 2\ **Last updated:** [30 July 2026 06:02 UTC](https://forum.access-hive.org.au/t/equatorial-pacific-upwelling-in-rcm3-at-different-resolutions/6712 "2026-07-30T06:02:48Z")
Title :bell:: Equatorial Pacific upwelling in rCM3 at different resolutions Summary :bell:: This experiment will run the ACCESS regional coupled climate model (ACCESS-RCM3) on a small domain in the equatorial Pacific a… --- ## [Experiment Proposal: ACCESS-ESM1.5 Pacific Warming AMIP Experiments](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-pacific-warming-amip-experiments/5749)
**Author:** [@abhik](https://forum.access-hive.org.au/u/abhik)\ **Replies:** 2\ **Last updated:** [9 July 2026 05:38 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-pacific-warming-amip-experiments/5749 "2026-07-09T05:38:01Z")
Experiment title :bell:: ACCESS-ESM1.5 Pacific Warming AMIP Experiments Summary :bell:: We propose a suite of AMIP-style experiments using ACCESS-ESM1.5 with prescribed Pacific SST warming scenarios. These experiments … --- ## [Variable names in ACCESS ESM 1.5](https://forum.access-hive.org.au/t/variable-names-in-access-esm-1-5/6599)
**Author:** [@georgyfalster](https://forum.access-hive.org.au/u/georgyfalster)\ **Replies:** 4\ **Last updated:** [9 July 2026 00:10 UTC](https://forum.access-hive.org.au/t/variable-names-in-access-esm-1-5/6599 "2026-07-09T00:10:57Z")
Hi, I am using ACCESS-MOPPy to CMORise (for the first time) outputs from experiments using the ACCESS-ESM1.5. For this I am following the tutorials to do so in a notebook e.g., ACCESS-MOPPy/notebooks/Tutorial1\_CMORisati… --- ## [Experiment Proposal: ACCESS-ESM1.6 DAMIP runs for CMIP7](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-6-damip-runs-for-cmip7/6520)
**Author:** [@ctychung](https://forum.access-hive.org.au/u/ctychung)\ **Replies:** 2\ **Last updated:** [29 June 2026 06:49 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-6-damip-runs-for-cmip7/6520 "2026-06-29T06:49:49Z")
Experiment title :bell:: ESM1.6 DAMIP runs for CMIP7 Summary :bell:: Production runs for the Detection Attribution MIP for CMIP7 Scientific motivation: The Detection and Attribution Model Intercomparison Project (DAM… --- ## [Experiment proposal: AGCM experiments with Observed Atlantic SST Forcing](https://forum.access-hive.org.au/t/experiment-proposal-agcm-experiments-with-observed-atlantic-sst-forcing/6476)
**Author:** [@Hao](https://forum.access-hive.org.au/u/Hao)\ **Replies:** 1\ **Last updated:** [11 June 2026 22:59 UTC](https://forum.access-hive.org.au/t/experiment-proposal-agcm-experiments-with-observed-atlantic-sst-forcing/6476 "2026-06-11T22:59:49Z")
Experiment Title :bell: : Role of Mean-state Atlantic SST Biases in the Trans-Basin Atlantic–Pacific Connections under Observed Atlantic SST Forcing Summary :bell:: This experiment investigates how mean-state Atlantic S… --- ## [CLIVAR workshop on high resolution modelling](https://forum.access-hive.org.au/t/clivar-workshop-on-high-resolution-modelling/6488)
**Author:** [@aekiss](https://forum.access-hive.org.au/u/aekiss)\ **Replies:** 0\ **Last updated:** [8 June 2026 23:44 UTC](https://forum.access-hive.org.au/t/clivar-workshop-on-high-resolution-modelling/6488 "2026-06-08T23:44:00Z")
There is a hybrid CLIVAR workshop on high resolution modelling that will be taking place at the Mesa Lab in Boulder, USA on September 14-17, 2026, that some of you may be interested to attend virtually or in person. See … --- ## [The road to regional coupled modelling (rCM3)](https://forum.access-hive.org.au/t/the-road-to-regional-coupled-modelling-rcm3/4601)
**Author:** [@Paul.Gregory](https://forum.access-hive.org.au/u/Paul.Gregory)\ **Replies:** 6\ **Last updated:** [21 May 2026 07:29 UTC](https://forum.access-hive.org.au/t/the-road-to-regional-coupled-modelling-rcm3/4601 "2026-05-21T07:29:26Z")
Hi All. One of 21stCenturyWeather’s aims is to be build a regional coupled model, combining high resolution atmospheric and ocean models. I posted this thread on the 21stCenturyWeather Cumulus website, but I thought I’… --- ## [Global ACCESS GCM scenarios start dumps and advice on how they can be run](https://forum.access-hive.org.au/t/global-access-gcm-scenarios-start-dumps-and-advice-on-how-they-can-be-run/6439)
**Author:** [@Jatreutlein](https://forum.access-hive.org.au/u/Jatreutlein)\ **Replies:** 6\ **Last updated:** [20 May 2026 01:34 UTC](https://forum.access-hive.org.au/t/global-access-gcm-scenarios-start-dumps-and-advice-on-how-they-can-be-run/6439 "2026-05-20T01:34:02Z")
Hi all, I’m currently trying to assess how plausible it is to run ACCESS-rAM3 from initial conditions that come from GCM simulations in the future - for example running ACCESS-rAM3 from an initial restart file of ESM in… --- ## [Experiment proposal: ACCESS-ESM1.5 TIPMIP-Ocean 8.2 ka run](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-tipmip-ocean-8-2-ka-run/6390)
**Author:** [@YanxuanD](https://forum.access-hive.org.au/u/YanxuanD)\ **Replies:** 1\ **Last updated:** [11 May 2026 05:31 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-esm1-5-tipmip-ocean-8-2-ka-run/6390 "2026-05-11T05:31:46Z")
ACCESS-ESM1.5 TIPMIP-Ocean for the 8.2 ka run We will follow the TIPMIP-OCEAN experimental protocol phase 1: Tipping dynamics of the AMOC for the 8.2 ka experiment. The experiment will start from the PI simulation in th… --- ## [ACCESS-CM3 Southern Ocean Convection in coastal and open ocean polynyas](https://forum.access-hive.org.au/t/access-cm3-southern-ocean-convection-in-coastal-and-open-ocean-polynyas/6166)
**Author:** [@sofarrell](https://forum.access-hive.org.au/u/sofarrell)\ **Replies:** 8\ **Last updated:** [5 May 2026 04:30 UTC](https://forum.access-hive.org.au/t/access-cm3-southern-ocean-convection-in-coastal-and-open-ocean-polynyas/6166 "2026-05-05T04:30:30Z")
Following todays discussion at the CM3 evaluation meeting I investigated further the 3 areas identified as convection areas in @AndyHoggANU plots of convection in year 50 of the “cm3-20-01-2026” run. Also briefly looked … --- ## [Netcdf\_conversion often fails since switching to xp65](https://forum.access-hive.org.au/t/netcdf-conversion-often-fails-since-switching-to-xp65/5572)
**Author:** [@wghuneke](https://forum.access-hive.org.au/u/wghuneke)\ **Replies:** 5\ **Last updated:** [28 April 2026 00:45 UTC](https://forum.access-hive.org.au/t/netcdf-conversion-often-fails-since-switching-to-xp65/5572 "2026-04-28T00:45:27Z")
Hi all, I’ve noticed that the netcdf\_conversion job fails regularly (every few model years) in CM2. I believe, I’ve started to notice this since moving to the xp65 environment. I’m running a copy of suite u-db130/meltwa… --- ## [Experiment Proposal: Fast-Track Abrupt CO₂ Experiments](https://forum.access-hive.org.au/t/experiment-proposal-fast-track-abrupt-co-experiments/6321)
**Author:** [@abhik](https://forum.access-hive.org.au/u/abhik)\ **Replies:** 0\ **Last updated:** [24 April 2026 05:40 UTC](https://forum.access-hive.org.au/t/experiment-proposal-fast-track-abrupt-co-experiments/6321 "2026-04-24T05:40:44Z")
Experiment title :bell:: Fast-Track Abrupt CO₂ Experiments Summary :bell:: A set of fast-track abrupt CO₂ experiments is requested in support of the CMIP7 Assessment Fast Track submission. These simulations are required… --- ## [Experiment Proposal: ACCESS-CM2 tropical Atlantic warming experiments](https://forum.access-hive.org.au/t/experiment-proposal-access-cm2-tropical-atlantic-warming-experiments/6263)
**Author:** [@zoegillett27](https://forum.access-hive.org.au/u/zoegillett27)\ **Replies:** 2\ **Last updated:** [21 April 2026 23:50 UTC](https://forum.access-hive.org.au/t/experiment-proposal-access-cm2-tropical-atlantic-warming-experiments/6263 "2026-04-21T23:50:38Z")
Experiment title :bell:: ACCESS-CM2 tropical Atlantic warming experiments Summary :bell:: This project uses pacemaker-style experiments with ACCESS-CM2 to investigate how tropical Atlantic variability influences the Pac… --- ## [Running historical and ssp585 CM2 simulations with meltwater forcing](https://forum.access-hive.org.au/t/running-historical-and-ssp585-cm2-simulations-with-meltwater-forcing/6012)
**Author:** [@wghuneke](https://forum.access-hive.org.au/u/wghuneke)\ **Replies:** 4\ **Last updated:** [20 April 2026 00:01 UTC](https://forum.access-hive.org.au/t/running-historical-and-ssp585-cm2-simulations-with-meltwater-forcing/6012 "2026-04-20T00:01:20Z")
Hi, I aim to run some historical and ssp585 simulations with additional Antarctic meltwater input using ACCESS-CM2. The u-db130/meltwater suite has the required code to apply the meltwater perturbation. I was wondering… --- ## [Retrieve\_ozone job failing](https://forum.access-hive.org.au/t/retrieve-ozone-job-failing/6252)
**Author:** [@zoegillett27](https://forum.access-hive.org.au/u/zoegillett27)\ **Replies:** 3\ **Last updated:** [13 April 2026 00:06 UTC](https://forum.access-hive.org.au/t/retrieve-ozone-job-failing/6252 "2026-04-13T00:06:35Z")
Hi all, I’m trying to run a historical ACCESS-CM2 suite and I’m getting an error in the retrieve\_ozone job, which I think is related to the new Conda environment conda/analysis3-26.03. This is the error: Traceback (mo… [Next page](https://forum.access-hive.org.au/c/esm/35.md?page=1)