Mathematics – Logic
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3118207s&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 18, CiteID L18207
Mathematics
Logic
1
Meteorology And Atmospheric Dynamics: Paleoclimatology, Global Change: Climate Dynamics (3309), Information Related To Geologic Time: Paleozoic, Oceanography: General: Numerical Modeling, Oceanography: Physical: General Circulation
Scientific paper
An idealised Pangean configuration is integrated in a coupled ocean atmosphere general circulation model to investigate the form of the ocean circulation and its impacts on the large scale climate system. A vigorous, hemispherically symmetric overturning is found, driven by deep water formation at high latitudes. Whilst the peak mass transport is around 100 Sv, a low vertical temperature gradient in the ocean means that the maximum heat transport is only 1.2 PW. The geographical change in the coupled model is found to produce a global average warming of 2°C, despite an increase in global surface albedo. This occurs through changes in the atmospheric water vapour and cloud distributions. There is also reduction in the equator-pole temperature gradient, largely attributable to the same causes, avoiding the paradox of low meridional temperature gradients without increased polar heat transport.
Dubois Catherine
Marotzke Johannes
Smith Scott R.
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