Permanent El Niño-Like Conditions During the Pliocene Warm Period

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書誌事項

公開日
2005-07-29
DOI
  • 10.1126/science.1112596
公開者
American Association for the Advancement of Science (AAAS)

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<jats:p>During the warm early Pliocene (∼4.5 to 3.0 million years ago), the most recent interval with a climate warmer than today, the eastern Pacific thermocline was deep and the average west-to-east sea surface temperature difference across the equatorial Pacific was only 1.5 ± 0.9°C, much like it is during a modern El Niño event. Thus, the modern strong sea surface temperature gradient across the equatorial Pacific is not a stable and permanent feature. Sustained El Niño-like conditions, including relatively weak zonal atmospheric (Walker) circulation, could be a consequence of, and play an important role in determining, global warmth.</jats:p>

収録刊行物

  • Science

    Science 309 (5735), 758-761, 2005-07-29

    American Association for the Advancement of Science (AAAS)

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