Geoscientific Model Development (Feb 2020)
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions
- 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
Affiliations
- A. E. Kiss
- Research School of Earth Sciences, Australian National University, Canberra, Australia
- A. E. Kiss
- ARC Centre of Excellence for Climate Extremes, Australia
- A. McC. Hogg
- Research School of Earth Sciences, Australian National University, Canberra, Australia
- A. McC. Hogg
- ARC Centre of Excellence for Climate Extremes, Australia
- N. Hannah
- Double Precision, Sydney, Australia
- F. Boeira Dias
- ARC Centre of Excellence for Climate Extremes, Australia
- F. Boeira Dias
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- F. Boeira Dias
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
- F. Boeira Dias
- Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Australia
- G. B. Brassington
- Bureau of Meteorology, Melbourne, Australia
- M. A. Chamberlain
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- C. Chapman
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- P. Dobrohotoff
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- P. Dobrohotoff
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
- C. M. Domingues
- ARC Centre of Excellence for Climate Extremes, Australia
- C. M. Domingues
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
- C. M. Domingues
- Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Australia
- E. R. Duran
- Climate Change Research Centre, University of New South Wales, Sydney, Australia
- M. H. England
- ARC Centre of Excellence for Climate Extremes, Australia
- M. H. England
- Climate Change Research Centre, University of New South Wales, Sydney, Australia
- R. Fiedler
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- S. M. Griffies
- NOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USA
- S. M. Griffies
- Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, New Jersey, USA
- A. Heerdegen
- Research School of Earth Sciences, Australian National University, Canberra, Australia
- A. Heerdegen
- ARC Centre of Excellence for Climate Extremes, Australia
- P. Heil
- Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Australia
- P. Heil
- Australian Antarctic Division, Kingston, Tasmania, Australia
- R. M. Holmes
- ARC Centre of Excellence for Climate Extremes, Australia
- R. M. Holmes
- Climate Change Research Centre, University of New South Wales, Sydney, Australia
- R. M. Holmes
- School of Mathematics and Statistics, University of New South Wales, Sydney, Australia
- A. Klocker
- ARC Centre of Excellence for Climate Extremes, Australia
- A. Klocker
- Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Australia
- S. J. Marsland
- ARC Centre of Excellence for Climate Extremes, Australia
- S. J. Marsland
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- S. J. Marsland
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
- S. J. Marsland
- Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Australia
- A. K. Morrison
- Research School of Earth Sciences, Australian National University, Canberra, Australia
- A. K. Morrison
- ARC Centre of Excellence for Climate Extremes, Australia
- J. Munroe
- Memorial University of Newfoundland, St John's, Canada
- M. Nikurashin
- ARC Centre of Excellence for Climate Extremes, Australia
- M. Nikurashin
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
- P. R. Oke
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- G. S. Pilo
- ARC Centre of Excellence for Climate Extremes, Australia
- G. S. Pilo
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
- O. Richet
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- O. Richet
- Centre for Southern Hemisphere Ocean Research, Hobart, Tasmania, Australia
- A. Savita
- ARC Centre of Excellence for Climate Extremes, Australia
- A. Savita
- CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
- A. Savita
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
- A. Savita
- Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Australia
- P. Spence
- ARC Centre of Excellence for Climate Extremes, Australia
- P. Spence
- Climate Change Research Centre, University of New South Wales, Sydney, Australia
- K. D. Stewart
- Research School of Earth Sciences, Australian National University, Canberra, Australia
- K. D. Stewart
- Climate Change Research Centre, University of New South Wales, Sydney, Australia
- M. L. Ward
- NOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USA
- M. L. Ward
- National Computational Infrastructure, Australian National University, Canberra, Australia
- F. Wu
- Beijing Climate Centre, Beijing, China
- X. Zhang
- Research School of Earth Sciences, Australian National University, Canberra, Australia
- X. Zhang
- ARC Centre of Excellence for Climate Extremes, Australia
- DOI
- https://doi.org/10.5194/gmd-13-401-2020
- Journal volume & issue
-
Vol. 13
pp. 401 – 442
Abstract
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.
