Tropical cyclones and permanent El Niño in the early Pliocene epoch

Alexey V. Fedorov (), Christopher M. Brierley and Kerry Emanuel
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Alexey V. Fedorov: Yale University, New Haven, Connecticut 06520, USA
Christopher M. Brierley: Yale University, New Haven, Connecticut 06520, USA
Kerry Emanuel: Atmospheric, and Planetary Sciences, MIT, Cambridge, Massachusetts 02139, USA

Nature, 2010, vol. 463, issue 7284, 1066-1070

Abstract: Tropical cyclones maintained permanent 'El Niño' in early Pliocene The early Pliocene (5 to 3 million years ago) is the period in the geological past believed to be the closest analogue to contemporary global warming. Palaeoclimate data suggest that there were persistent El Niño-like conditions with near-constant sea surface temperatures across the tropical Pacific. Alexey Fedorov and colleagues use a coupled climate model and a hurricane model to show that hurricanes were probably much more frequent at this time, especially in the central Pacific where today there are virtually none, and that this hurricane activity may have strengthened warming in the eastern equatorial Pacific by about 3°C, further increasing hurricane frequency.

Date: 2010
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DOI: 10.1038/nature08831

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