ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions

<p>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–...

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Main Authors: A. E. Kiss, A. McC. Hogg, N. Hannah, F. Boeira Dias, G. B. Brassington, M. A. Chamberlain, C. Chapman, P. Dobrohotoff, C. M. Domingues, E. R. Duran, M. H. England, R. Fiedler, S. M. Griffies, A. Heerdegen, P. Heil, R. M. Holmes, A. Klocker, S. J. Marsland, A. K. Morrison, J. Munroe, M. Nikurashin, P. R. Oke, G. S. Pilo, O. Richet, A. Savita, P. Spence, K. D. Stewart, M. L. Ward, F. Wu, X. Zhang
Format: Article
Language:English
Published: Copernicus Publications 2020-02-01
Series:Geoscientific Model Development
Online Access:https://www.geosci-model-dev.net/13/401/2020/gmd-13-401-2020.pdf
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author A. E. Kiss
A. E. Kiss
A. McC. Hogg
A. McC. Hogg
N. Hannah
F. Boeira Dias
F. Boeira Dias
F. Boeira Dias
F. Boeira Dias
G. B. Brassington
M. A. Chamberlain
C. Chapman
P. Dobrohotoff
P. Dobrohotoff
C. M. Domingues
C. M. Domingues
C. M. Domingues
E. R. Duran
M. H. England
M. H. England
R. Fiedler
S. M. Griffies
S. M. Griffies
A. Heerdegen
A. Heerdegen
P. Heil
P. Heil
R. M. Holmes
R. M. Holmes
R. M. Holmes
A. Klocker
A. Klocker
S. J. Marsland
S. J. Marsland
S. J. Marsland
S. J. Marsland
A. K. Morrison
A. K. Morrison
J. Munroe
M. Nikurashin
M. Nikurashin
P. R. Oke
G. S. Pilo
G. S. Pilo
O. Richet
O. Richet
A. Savita
A. Savita
A. Savita
A. Savita
P. Spence
P. Spence
K. D. Stewart
K. D. Stewart
M. L. Ward
M. L. Ward
F. Wu
X. Zhang
X. Zhang
author_facet A. E. Kiss
A. E. Kiss
A. McC. Hogg
A. McC. Hogg
N. Hannah
F. Boeira Dias
F. Boeira Dias
F. Boeira Dias
F. Boeira Dias
G. B. Brassington
M. A. Chamberlain
C. Chapman
P. Dobrohotoff
P. Dobrohotoff
C. M. Domingues
C. M. Domingues
C. M. Domingues
E. R. Duran
M. H. England
M. H. England
R. Fiedler
S. M. Griffies
S. M. Griffies
A. Heerdegen
A. Heerdegen
P. Heil
P. Heil
R. M. Holmes
R. M. Holmes
R. M. Holmes
A. Klocker
A. Klocker
S. J. Marsland
S. J. Marsland
S. J. Marsland
S. J. Marsland
A. K. Morrison
A. K. Morrison
J. Munroe
M. Nikurashin
M. Nikurashin
P. R. Oke
G. S. Pilo
G. S. Pilo
O. Richet
O. Richet
A. Savita
A. Savita
A. Savita
A. Savita
P. Spence
P. Spence
K. D. Stewart
K. D. Stewart
M. L. Ward
M. L. Ward
F. Wu
X. Zhang
X. Zhang
author_sort A. E. Kiss
collection DOAJ
description <p>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<span class="inline-formula"><sup>∘</sup></span> horizontal grid spacing), an eddy-permitting resolution (nominally 0.25<span class="inline-formula"><sup>∘</sup></span>), and an eddy-rich resolution (0.1<span class="inline-formula"><sup>∘</sup></span> 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.</p>
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spelling doaj.art-a236cf9f85bc4b60a5cea5f14e1871542022-12-22T00:22:08ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032020-02-011340144210.5194/gmd-13-401-2020ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutionsA. E. Kiss0A. E. Kiss1A. McC. Hogg2A. McC. Hogg3N. Hannah4F. Boeira Dias5F. Boeira Dias6F. Boeira Dias7F. Boeira Dias8G. B. Brassington9M. A. Chamberlain10C. Chapman11P. Dobrohotoff12P. Dobrohotoff13C. M. Domingues14C. M. Domingues15C. M. Domingues16E. R. Duran17M. H. England18M. H. England19R. Fiedler20S. M. Griffies21S. M. Griffies22A. Heerdegen23A. Heerdegen24P. Heil25P. Heil26R. M. Holmes27R. M. Holmes28R. M. Holmes29A. Klocker30A. Klocker31S. J. Marsland32S. J. Marsland33S. J. Marsland34S. J. Marsland35A. K. Morrison36A. K. Morrison37J. Munroe38M. Nikurashin39M. Nikurashin40P. R. Oke41G. S. Pilo42G. S. Pilo43O. Richet44O. Richet45A. Savita46A. Savita47A. Savita48A. Savita49P. Spence50P. Spence51K. D. Stewart52K. D. Stewart53M. L. Ward54M. L. Ward55F. Wu56X. Zhang57X. Zhang58Research School of Earth Sciences, Australian National University, Canberra, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaResearch School of Earth Sciences, Australian National University, Canberra, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaDouble Precision, Sydney, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, AustraliaAntarctic Climate and Ecosystems Cooperative Research Centre, Hobart, AustraliaBureau of Meteorology, Melbourne, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, AustraliaAntarctic Climate and Ecosystems Cooperative Research Centre, Hobart, AustraliaClimate Change Research Centre, University of New South Wales, Sydney, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaClimate Change Research Centre, University of New South Wales, Sydney, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaNOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USAAtmospheric and Oceanic Sciences Program, Princeton University, Princeton, New Jersey, USAResearch School of Earth Sciences, Australian National University, Canberra, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaAntarctic Climate and Ecosystems Cooperative Research Centre, Hobart, AustraliaAustralian Antarctic Division, Kingston, Tasmania, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaClimate Change Research Centre, University of New South Wales, Sydney, AustraliaSchool of Mathematics and Statistics, University of New South Wales, Sydney, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaAntarctic Climate and Ecosystems Cooperative Research Centre, Hobart, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, AustraliaAntarctic Climate and Ecosystems Cooperative Research Centre, Hobart, AustraliaResearch School of Earth Sciences, Australian National University, Canberra, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaMemorial University of Newfoundland, St John's, CanadaARC Centre of Excellence for Climate Extremes, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaCentre for Southern Hemisphere Ocean Research, Hobart, Tasmania, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaCSIRO Oceans and Atmosphere, Hobart, Tasmania, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, AustraliaAntarctic Climate and Ecosystems Cooperative Research Centre, Hobart, AustraliaARC Centre of Excellence for Climate Extremes, AustraliaClimate Change Research Centre, University of New South Wales, Sydney, AustraliaResearch School of Earth Sciences, Australian National University, Canberra, AustraliaClimate Change Research Centre, University of New South Wales, Sydney, AustraliaNOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USANational Computational Infrastructure, Australian National University, Canberra, AustraliaBeijing Climate Centre, Beijing, ChinaResearch School of Earth Sciences, Australian National University, Canberra, AustraliaARC Centre of Excellence for Climate Extremes, Australia<p>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<span class="inline-formula"><sup>∘</sup></span> horizontal grid spacing), an eddy-permitting resolution (nominally 0.25<span class="inline-formula"><sup>∘</sup></span>), and an eddy-rich resolution (0.1<span class="inline-formula"><sup>∘</sup></span> 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.</p>https://www.geosci-model-dev.net/13/401/2020/gmd-13-401-2020.pdf
spellingShingle A. E. Kiss
A. E. Kiss
A. McC. Hogg
A. McC. Hogg
N. Hannah
F. Boeira Dias
F. Boeira Dias
F. Boeira Dias
F. Boeira Dias
G. B. Brassington
M. A. Chamberlain
C. Chapman
P. Dobrohotoff
P. Dobrohotoff
C. M. Domingues
C. M. Domingues
C. M. Domingues
E. R. Duran
M. H. England
M. H. England
R. Fiedler
S. M. Griffies
S. M. Griffies
A. Heerdegen
A. Heerdegen
P. Heil
P. Heil
R. M. Holmes
R. M. Holmes
R. M. Holmes
A. Klocker
A. Klocker
S. J. Marsland
S. J. Marsland
S. J. Marsland
S. J. Marsland
A. K. Morrison
A. K. Morrison
J. Munroe
M. Nikurashin
M. Nikurashin
P. R. Oke
G. S. Pilo
G. S. Pilo
O. Richet
O. Richet
A. Savita
A. Savita
A. Savita
A. Savita
P. Spence
P. Spence
K. D. Stewart
K. D. Stewart
M. L. Ward
M. L. Ward
F. Wu
X. Zhang
X. Zhang
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions
Geoscientific Model Development
title 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_short 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
url https://www.geosci-model-dev.net/13/401/2020/gmd-13-401-2020.pdf
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