The ACCESS-CM2 climate model with a higher  resolution ocean-sea ice component (1/4°)

Huneke, Wilma G. C.; Hogg, Andrew McC.; Dix, Martin; Bi, Daohua; Sullivan, Arnold; McGregor, Shayne; Holgate, Chiara M.; O'Farrell, Siobhan P.; Oliveira, Micael J. T.

doi:10.5194/gmd-18-9991-2025

Articles | Volume 18, issue 24

https://doi.org/10.5194/gmd-18-9991-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The Australian Community Climate and Earth System Simulator:...

https://doi.org/10.5194/gmd-18-9991-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 24

Model evaluation paper

|

15 Dec 2025

Model evaluation paper |

| 15 Dec 2025

The ACCESS-CM2 climate model with a higher resolution ocean-sea ice component (1/4°)

Wilma G. C. Huneke, Andrew McC. Hogg, Martin Dix, Daohua Bi, Arnold Sullivan, Shayne McGregor, Chiara M. Holgate, Siobhan P. O'Farrell, and Micael J. T. Oliveira

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Views and downloads (calculated since 26 Mar 2025)

Month	HTML	PDF	XML	Total
Mar 2025	96	18	2	116
Apr 2025	160	52	10	222
May 2025	74	64	2	140
Jun 2025	100	62	4	166
Jul 2025	106	90	4	200
Aug 2025	990	116	12	1,118
Sep 2025	2,902	38	4	2,944
Oct 2025	136	50	14	200
Nov 2025	118	46	16	180
Dec 2025	334	151	25	510
Jan 2026	1,172	133	20	1,325
Feb 2026	468	120	19	607
Mar 2026	373	237	21	631
Apr 2026	249	176	11	436
May 2026	156	34	2	192

Cumulative views and downloads (calculated since 26 Mar 2025)

Month	HTML	PDF	XML	Total
Mar 2025	96	18	2	116
Apr 2025	160	52	10	222
May 2025	74	64	2	140
Jun 2025	100	62	4	166
Jul 2025	106	90	4	200
Aug 2025	990	116	12	1,118
Sep 2025	2,902	38	4	2,944
Oct 2025	136	50	14	200
Nov 2025	118	46	16	180
Dec 2025	334	151	25	510
Jan 2026	1,172	133	20	1,325
Feb 2026	468	120	19	607
Mar 2026	373	237	21	631
Apr 2026	249	176	11	436
May 2026	156	34	2	192

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Total article views: 8,987 (including HTML, PDF, and XML) Thereof 8,742 with geography defined and 245 with unknown origin.

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Short summary

A new configuration of the Australian Community Climate and Earth System Simulator coupled model, ACCESS-CM2, with a higher resolution ocean-sea ice component is introduced. The new version of the coupled climate model was designed to better capture smaller-scale ocean motions. While this configuration improves the representation of many aspects of the climate system, some biases from the existing lower-resolution version persist.