Configuration and spin-up of ACCESS-CM2, the new generation Australian Community Climate and Earth System Simulator Coupled Model

Daohua Bi; Martin Dix; Simon Marsland; Siobhan O’Farrell; Arnold Sullivan; Roger Bodman; Rachel Law; Ian Harman; Jhan Srbinovsky; Harun A. Rashid; Peter Dobrohotoff; Chloe Mackallah; Hailin Yan; Anthony Hirst; Abhishek Savita; Fabio Boeira Dias; Matthew Woodhouse; Russell Fiedler; Aidan Heerdegen

doi:10.1071/es19040

journal article Open Access Oct 08, 2020

Configuration and spin-up of ACCESS-CM2, the new generation Australian Community Climate and Earth System Simulator Coupled Model

Daohua Bi Martin Dix Simon Marsland Siobhan O’Farrell Arnold Sullivan Roger Bodman Rachel Law Ian Harman Jhan Srbinovsky Harun A. Rashid Peter Dobrohotoff Chloe Mackallah Hailin Yan Anthony Hirst Abhishek Savita Fabio Boeira Dias Matthew Woodhouse Russell Fiedler Aidan Heerdegen

Journal of Southern Hemisphere Earth Systems Science Vol. 70 No. 1 pp. 225-251 · CSIRO Publishing

View at Publisher Save 10.1071/es19040

Abstract

A new version of the Australian Community Climate and Earth System Simulator coupled model, ACCESS-CM2, has been developed for a wide range of climate modelling research and applications. In particular, ACCESS-CM2 is one of Australia’s contributions to the World Climate Research Programme’s Coupled Model Intercomparison Project Phase 6 (CMIP6). Compared with the ACCESS1.3 model used for our CMIP5 submission, all model components have been upgraded as well as the coupling framework (OASIS3-MCT) and experiment control system (Rose/Cylc). The component models are: UM10.6 GA7.1 for the atmosphere, CABLE2.5 for the land surface, MOM5 for the ocean, and CICE5.1.2 for the sea ice. This paper describes the model configuration of ACCESS-CM2, documents the experimental set up, and assesses the model performance for the preindustrial spin-up simulation in comparison against (reconstructed) observations and ACCESS1.3 results. While the performance of the two generations of the ACCESS coupled model is largely comparable, ACCESS-CM2 shows better global hydrological balance, more realistic ocean water properties (in terms of spatial distribution) and meridional overturning circulation in the Southern Ocean but a poorer simulation of the Antarctic sea ice and a larger energy imbalance at the top of atmosphere. This energy imbalance reflects a noticeable warming trend of the global ocean over the spin-up period.

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Details

Published: Oct 08, 2020
Vol/Issue: 70(1)
Pages: 225-251
License: View

Authors

D

Daohua Bi

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.; ICorresponding author. Email: Dave.Bi@csiro.au

M

Martin Dix

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

S

Simon Marsland

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.; BInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia.; CARC Centre of Excellence for Climate Extremes, Sydney, Australia.

S

Siobhan O’Farrell

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

A

Arnold Sullivan

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

R

Roger Bodman

DUniversity of Melbourne, Melbourne, Australia.

R

Rachel Law

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

I

Ian Harman

ECSIRO Oceans and Atmosphere, Canberra, Australia.

J

Jhan Srbinovsky

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

H

Harun A. Rashid

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

P

Peter Dobrohotoff

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

C

Chloe Mackallah

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

H

Hailin Yan

FBureau of Meteorology, Melbourne, Australia.

A

Anthony Hirst

FBureau of Meteorology, Melbourne, Australia.

A

Abhishek Savita

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.; BInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia.; CARC Centre of Excellence for Climate Extremes, Sydney, Australia.

F

Fabio Boeira Dias

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.; BInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia.; CARC Centre of Excellence for Climate Extremes, Sydney, Australia.

M

Matthew Woodhouse

ACSIRO Oceans and Atmosphere, 107–121 Station Street, Aspendale, Vic. 3195, Australia.

R

Russell Fiedler

GCSIRO Oceans and Atmosphere, Hobart, Australia.

A

Aidan Heerdegen

CARC Centre of Excellence for Climate Extremes, Sydney, Australia.; HAustralian National University, Canberra, Australia.

Cite This Article

Daohua Bi, Martin Dix, Simon Marsland, et al. (2020). Configuration and spin-up of ACCESS-CM2, the new generation Australian Community Climate and Earth System Simulator Coupled Model. Journal of Southern Hemisphere Earth Systems Science, 70(1), 225-251. https://doi.org/10.1071/es19040

Configuration and spin-up of ACCESS-CM2, the new generation Australian Community Climate and Earth System Simulator Coupled Model

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