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Abrupt changes in the Asian southwest monsoon during the Holocene and their links to the North Atlantic Ocean

Author

Listed:
  • Anil K. Gupta

    (Indian Institute of Technology
    Geophysics, Indian Institute of Technology)

  • David M. Anderson

    (NOAA Paleoclimatology Program)

  • Jonathan T. Overpeck

    (University of Arizona)

Abstract

During the last ice age, the Indian Ocean southwest monsoon exhibited abrupt changes that were closely correlated with millennial-scale climate events in the North Atlantic region1,2,3, suggesting a mechanistic link. In the Holocene epoch, which had a more stable climate, the amplitude of abrupt changes in North Atlantic climate was much smaller, and it has been unclear whether these changes are related to monsoon variability. Here we present a continuous record of centennial-scale monsoon variability throughout the Holocene from rapidly accumulating and minimally bioturbated sediments in the anoxic Arabian Sea. Our monsoon proxy record reveals several intervals of weak summer monsoon that coincide with cold periods documented in the North Atlantic region4—including the most recent climate changes from the Medieval Warm Period to the Little Ice Age and then to the present. We therefore suggest that the link between North Atlantic climate and the Asian monsoon is a persistent aspect of global climate.

Suggested Citation

  • Anil K. Gupta & David M. Anderson & Jonathan T. Overpeck, 2003. "Abrupt changes in the Asian southwest monsoon during the Holocene and their links to the North Atlantic Ocean," Nature, Nature, vol. 421(6921), pages 354-357, January.
    • Handle: RePEc:nat:nature:v:421:y:2003:i:6921:d:10.1038_nature01340
    DOI: 10.1038/nature01340
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    Cited by:

    1. Ye Tian & Dominik Fleitmann & Qiong Zhang & Lijuan Sha & Jasper. A. Wassenburg & Josefine Axelsson & Haiwei Zhang & Xianglei Li & Jun Hu & Hanying Li & Liang Zhao & Yanjun Cai & Youfeng Ning & Hai Che, 2023. "Holocene climate change in southern Oman deciphered by speleothem records and climate model simulations," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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