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Science 31 January 2003:
Vol. 299. no. 5607, pp. 688 - 691
DOI: 10.1126/science.1078235
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Reports

Asynchronous Climate Changes in the North Atlantic and Japan During the Last Termination

Takeshi Nakagawa,1* Hiroyuki Kitagawa,2 Yoshinori Yasuda,1 Pavel E. Tarasov,3 Kotoba Nishida,4 Katsuya Gotanda,1 Yuki Sawai,1 Yangtze River Civilization Program Members1

Pollen records from the annually laminated sediment sequence in Lake Suigetsu, Japan, suggest a sequence of climate changes during the Last Termination that resembles that of the North Atlantic region but with noticeable differences in timing. An interstadial interval commenced a few centuries earlier [~15,000 years before the present (yr B.P.)] than the North Atlantic GI-1 (Bölling) event. Conversely, the onset of a Younger Dryas (YD)-like cold reversal (12,300 to 11,250 yr B.P.) postdated the North Atlantic GS-1 (YD) event by a few centuries. Climate in the Far East during the Last Termination reflected solar insolation changes as much as Atlantic influences.

1 International Research Center for Japanese Studies, 3-2 Oeyama-cho, Goryo, Nishikyo-ku, Kyoto 610-1192, Japan.
2 Institute for Hydrospheric Atmospheric Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.
3 Department of Geography, Moscow State University, Vorob'evy Gory, Moscow 119899, Russia.
4 Department of Mathematics and Computer Science, Faculty of Science, Kagoshima University, 1-21-35 Koorimoto, Kagoshima 890-0065, Japan.
*   To whom correspondence should be addressed. E-mail: nakagawa{at}mail.dotcom.fr

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