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Potential for Southern Hemisphere climate surprises

Mayewski, P. A.; Bracegirdle, T.; Goodwin, I.; Schneider, D.; Bertler, N. A. N.; Birkel, S.; Carleton, A.; England, M. H.; Kang, J.-H.; Khan, A.; Russell, J.; Turner, J.; Velicogna, I.. 2015 Potential for Southern Hemisphere climate surprises. Journal of Quaternary Science, 30 (5). 391-395. 10.1002/jqs.2794

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Abstract/Summary

Climate model results suggest that future climate change in Antarctica will be accompanied by continued strengthening and poleward contraction of the Southern Ocean westerly wind belt. Paleoclimate records suggest past changes in the westerly winds can be abrupt and that healing of the Antarctic ozone hole could lead to poleward contraction of the westerlies and increased meridional atmospheric transport of warm air regionally into Antarctica. An abrupt shift to more meridional circulation could lead to notable changes in moisture availability for extra-Antarctic regions, increased Antarctic ice sheet disintegration and more rapid sea-level rise.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1002/jqs.2794
Programmes: BAS Programmes > BAS Programmes 2015 > Atmosphere, Ice and Climate
ISSN: 02678179
Additional Keywords: Antarctica, climate modelling, paleoclimate, Southern Hemisphere climate, westerlies
Date made live: 12 Aug 2015 10:48 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/511517

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