ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions
We introduce ACCESS-OM2, a new version of the ocean–sea ice model of the Australian Community Climate and Earth System Simulator. ACCESS-OM2 is driven by a prescribed atmosphere (JRA55-do) but has been designed to form the ocean–sea ice component of the fully coupled (atmosphere–land–ocean–sea ice)...
Published in: | Geoscientific Model Development |
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Online Access: | https://doi.org/10.5194/gmd-13-401-2020 https://gmd.copernicus.org/articles/13/401/2020/ |
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ftcopernicus:oai:publications.copernicus.org:gmd75750 2023-05-15T18:16:56+02:00 ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions Kiss, Andrew E. Hogg, Andrew McC. Hannah, Nicholas Boeira Dias, Fabio Brassington, Gary B. Chamberlain, Matthew A. Chapman, Christopher Dobrohotoff, Peter Domingues, Catia M. Duran, Earl R. England, Matthew H. Fiedler, Russell Griffies, Stephen M. Heerdegen, Aidan Heil, Petra Holmes, Ryan M. Klocker, Andreas Marsland, Simon J. Morrison, Adele K. Munroe, James Nikurashin, Maxim Oke, Peter R. Pilo, Gabriela S. Richet, Océane Savita, Abhishek Spence, Paul Stewart, Kial D. Ward, Marshall L. Wu, Fanghua Zhang, Xihan 2020-02-05 application/pdf https://doi.org/10.5194/gmd-13-401-2020 https://gmd.copernicus.org/articles/13/401/2020/ eng eng doi:10.5194/gmd-13-401-2020 https://gmd.copernicus.org/articles/13/401/2020/ eISSN: 1991-9603 Text 2020 ftcopernicus https://doi.org/10.5194/gmd-13-401-2020 2020-07-20T16:22:26Z We introduce ACCESS-OM2, a new version of the ocean–sea ice model of the Australian Community Climate and Earth System Simulator. ACCESS-OM2 is driven by a prescribed atmosphere (JRA55-do) but has been designed to form the ocean–sea ice component of the fully coupled (atmosphere–land–ocean–sea ice) ACCESS-CM2 model. Importantly, the model is available at three different horizontal resolutions: a coarse resolution (nominally 1 ∘ horizontal grid spacing), an eddy-permitting resolution (nominally 0.25 ∘ ), and an eddy-rich resolution (0.1 ∘ with 75 vertical levels); the eddy-rich model is designed to be incorporated into the Bluelink operational ocean prediction and reanalysis system. The different resolutions have been developed simultaneously, both to allow for testing at lower resolutions and to permit comparison across resolutions. In this paper, the model is introduced and the individual components are documented. The model performance is evaluated across the three different resolutions, highlighting the relative advantages and disadvantages of running ocean–sea ice models at higher resolution. We find that higher resolution is an advantage in resolving flow through small straits, the structure of western boundary currents, and the abyssal overturning cell but that there is scope for improvements in sub-grid-scale parameterizations at the highest resolution. Text Sea ice Copernicus Publications: E-Journals Geoscientific Model Development 13 2 401 442 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
We introduce ACCESS-OM2, a new version of the ocean–sea ice model of the Australian Community Climate and Earth System Simulator. ACCESS-OM2 is driven by a prescribed atmosphere (JRA55-do) but has been designed to form the ocean–sea ice component of the fully coupled (atmosphere–land–ocean–sea ice) ACCESS-CM2 model. Importantly, the model is available at three different horizontal resolutions: a coarse resolution (nominally 1 ∘ horizontal grid spacing), an eddy-permitting resolution (nominally 0.25 ∘ ), and an eddy-rich resolution (0.1 ∘ with 75 vertical levels); the eddy-rich model is designed to be incorporated into the Bluelink operational ocean prediction and reanalysis system. The different resolutions have been developed simultaneously, both to allow for testing at lower resolutions and to permit comparison across resolutions. In this paper, the model is introduced and the individual components are documented. The model performance is evaluated across the three different resolutions, highlighting the relative advantages and disadvantages of running ocean–sea ice models at higher resolution. We find that higher resolution is an advantage in resolving flow through small straits, the structure of western boundary currents, and the abyssal overturning cell but that there is scope for improvements in sub-grid-scale parameterizations at the highest resolution. |
format |
Text |
author |
Kiss, Andrew E. Hogg, Andrew McC. Hannah, Nicholas Boeira Dias, Fabio Brassington, Gary B. Chamberlain, Matthew A. Chapman, Christopher Dobrohotoff, Peter Domingues, Catia M. Duran, Earl R. England, Matthew H. Fiedler, Russell Griffies, Stephen M. Heerdegen, Aidan Heil, Petra Holmes, Ryan M. Klocker, Andreas Marsland, Simon J. Morrison, Adele K. Munroe, James Nikurashin, Maxim Oke, Peter R. Pilo, Gabriela S. Richet, Océane Savita, Abhishek Spence, Paul Stewart, Kial D. Ward, Marshall L. Wu, Fanghua Zhang, Xihan |
spellingShingle |
Kiss, Andrew E. Hogg, Andrew McC. Hannah, Nicholas Boeira Dias, Fabio Brassington, Gary B. Chamberlain, Matthew A. Chapman, Christopher Dobrohotoff, Peter Domingues, Catia M. Duran, Earl R. England, Matthew H. Fiedler, Russell Griffies, Stephen M. Heerdegen, Aidan Heil, Petra Holmes, Ryan M. Klocker, Andreas Marsland, Simon J. Morrison, Adele K. Munroe, James Nikurashin, Maxim Oke, Peter R. Pilo, Gabriela S. Richet, Océane Savita, Abhishek Spence, Paul Stewart, Kial D. Ward, Marshall L. Wu, Fanghua Zhang, Xihan ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions |
author_facet |
Kiss, Andrew E. Hogg, Andrew McC. Hannah, Nicholas Boeira Dias, Fabio Brassington, Gary B. Chamberlain, Matthew A. Chapman, Christopher Dobrohotoff, Peter Domingues, Catia M. Duran, Earl R. England, Matthew H. Fiedler, Russell Griffies, Stephen M. Heerdegen, Aidan Heil, Petra Holmes, Ryan M. Klocker, Andreas Marsland, Simon J. Morrison, Adele K. Munroe, James Nikurashin, Maxim Oke, Peter R. Pilo, Gabriela S. Richet, Océane Savita, Abhishek Spence, Paul Stewart, Kial D. Ward, Marshall L. Wu, Fanghua Zhang, Xihan |
author_sort |
Kiss, Andrew E. |
title |
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions |
title_short |
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions |
title_full |
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions |
title_fullStr |
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions |
title_full_unstemmed |
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions |
title_sort |
access-om2 v1.0: a global ocean–sea ice model at three resolutions |
publishDate |
2020 |
url |
https://doi.org/10.5194/gmd-13-401-2020 https://gmd.copernicus.org/articles/13/401/2020/ |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
eISSN: 1991-9603 |
op_relation |
doi:10.5194/gmd-13-401-2020 https://gmd.copernicus.org/articles/13/401/2020/ |
op_doi |
https://doi.org/10.5194/gmd-13-401-2020 |
container_title |
Geoscientific Model Development |
container_volume |
13 |
container_issue |
2 |
container_start_page |
401 |
op_container_end_page |
442 |
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1766190895702474752 |