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G. Flato, G. Boer, W. Lee, N. McFarlane, D. Ramsden, M. Reader, Andrew Weaver (2000)
The Canadian Centre for Climate Modelling and Analysis global coupled model and its climateClimate Dynamics, 16
T. McDougall, A. Hirst, M. England, P. McIntosh (1996)
Implications of a new eddy parameterization for ocean modelsGeophysical Research Letters, 23
J. Mitchell, T. Johns, J. Gregory, S. Tett (1995)
Climate response to increasing levels of greenhouse gases and sulphate aerosolsNature, 376
G. Flato, W. Hibler (1992)
Modeling Pack Ice as a Cavitating FluidJournal of Physical Oceanography, 22
P. Gent, J. McWilliams (1990)
Isopycnal mixing in ocean circulation modelsJournal of Physical Oceanography, 20
P. Jones (1994)
Hemispheric Surface Air Temperature Variations: A Reanalysis and an Update to 1993.Journal of Climate, 7
David Parker, C. Folland, M. Jackson (1995)
Marine surface temperature: Observed variations and data requirementsClimatic Change, 31
G. Boer, G. Flato, M. Reader, D. Ramsden (2000)
A transient climate change simulation with greenhouse gas and aerosol forcing: experimental design and comparison with the instrumental record for the twentieth centuryClimate Dynamics, 16
A. Weaver, E. Wiebe (1999)
On the sensitivity of projected oceanic thermal expansion to the parameterisation of sub‐grid scale ocean mixingGeophysical Research Letters, 26
George Boer, G. Flato, D. Ramsden (2000)
A transient climate change simulation with greenhouse gas and aerosol forcing: projected climate to the twenty-first centuryClimate Dynamics, 16
D. Cavalieri, P. Gloersen, Claire Parkinson, J. Comiso, H. Zwally (1997)
Observed Hemispheric Asymmetry in Global Sea Ice ChangesScience, 278
N. McFarlane, G. Boer, J. Blanchet, M. Lazare (1992)
The Canadian Climate Centre Second-Generation General Circulation Model and Its Equilibrium ClimateJournal of Climate, 5
E. Wiebe, A. Weaver (1999)
On the sensitivity of global warming experiments to the parametrisation of sub-grid scale ocean mixingClimate Dynamics, 15
The GFDL modular ocean model users guide
A. Hirst, Hal Gordon, S. O’Farrell (1996)
Global warming in a coupled climate model including oceanic eddy-induced advectionGeophysical Research Letters, 23
William Clark, Jill Jäger (1997)
Climate Change 1995: The Science of Climate ChangeEnvironment, 39
D. Jackett, T. McDougall, M. England, A. Hirst (2000)
Thermal Expansion in Ocean and Coupled General Circulation ModelsJournal of Climate, 13
Daniel Robitaille, A. Weaver (1995)
Validation of sub‐grid‐scale mixing schemes using CFCs in a global ocean modelGeophysical Research Letters, 22
Climate change simulations made with coupled global climate models typically show a marked hemispheric asymmetry with more warming in the northern high latitudes than in the south. This asymmetry is ascribed to heat uptake by the ocean at high southern latitudes. A recent version of the CCCma climate model exhibits a much more symmetric warming, compared to an earlier version, and agrees somewhat better with observed 20th century trends. This is associated with an improved parameterization of ocean mixing which results in a decrease in heat penetration into the Southern Ocean, in accord with earlier ocean‐only and simple coupled model investigations. The global average warming and the net penetration of heat into the global ocean (and hence its thermal expansion) are essentially unchanged. Observed trends in sea‐ice extent over the past two decades exhibit hemispheric asymmetry with a statistically significant decrease in northern but not in southern ice cover. Both model versions are consistent with these observations implying that observed ice extent is not yet an indicator of asymmetry in future global warming. Taken together, these results suggest that southern hemisphere climate warming at a rate comparable to that in the northern hemisphere should be considered a realistic possiblity.
Geophysical Research Letters – Wiley
Published: Jan 1, 2001
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