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

doi:10.5194/gmd-13-401-2020

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

2020
By Kiss, Andrew E. ; Hogg, Andrew McC. ; Hannah, Nicholas ; ...
Source: Geoscientific Model Development, 13(2), 401-442

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Journal Title:

Geoscientific Model Development
Personal Author:

Kiss, Andrew E. ; Hogg, Andrew McC. ; Hannah, Nicholas ; Boeira Dias, Fabio ; Brassington, Gary B. ; ... More +

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 Less -
NOAA Program & Office:

GFDL (Geophysical Fluid Dynamics Laboratory) ; OAR (Oceanic and Atmospheric Research)

GFDL (Geophysical Fluid Dynamics Laboratory) ; OAR (Oceanic and Atmospheric Research) Less -
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.
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General Medicine
Source:

Geoscientific Model Development, 13(2), 401-442
DOI:

https://doi.org/10.5194/gmd-13-401-2020
ISSN:

1991-9603
Format:

PDF
Publisher:

Copernicus GmbH
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
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CC BY
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Library
Main Document Checksum:

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urn:sha-512:f3711deff864fb627aec5185e185f415fba6acad198cfd8472edef0abaa3f7278ac07ef656775a76a3f288583e6432a850e4c416113a4d53d7dbbffef94bcdeb
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https://repository.library.noaa.gov/view/noaa/64303/noaa_64303_DS1.pdf
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