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Deciphering local and regional hydroclimate resolves contradicting evidence on the Asian monsoon evolution

Author

Listed:
  • Annabel Wolf

    (University of California
    Northumbria University Newcastle)

  • Vasile Ersek

    (Northumbria University Newcastle)

  • Tobias Braun

    (Potsdam Institute for Climate Impact Research)

  • Amanda D. French

    (Waikato University)

  • David McGee

    (Massachusetts Institute of Technology)

  • Stefano M. Bernasconi

    (ETH Zürich)

  • Vanessa Skiba

    (Potsdam Institute for Climate Impact Research)

  • Michael L. Griffiths

    (William Paterson University)

  • Kathleen R. Johnson

    (University of California)

  • Jens Fohlmeister

    (Federal Office for Radiations Protection)

  • Sebastian F. M. Breitenbach

    (Northumbria University Newcastle)

  • Francesco S. R. Pausata

    (University of Quebec in Montreal)

  • Clay R. Tabor

    (University of Connecticut)

  • Jack Longman

    (Northumbria University Newcastle
    University of Oldenburg)

  • William H. G. Roberts

    (Northumbria University Newcastle)

  • Deepak Chandan

    (University of Toronto)

  • W. Richard Peltier

    (University of Toronto)

  • Ulrich Salzmann

    (Northumbria University Newcastle)

  • Deborah Limbert

    (Phong Nha Bố Trạch)

  • Hong Quan Trinh

    (Vietnam Academy of Science and Technology)

  • Anh Duc Trinh

    (Vietnam Atomic Energy Institute)

Abstract

The winter and summer monsoons in Southeast Asia are important but highly variable sources of rainfall. Current understanding of the winter monsoon is limited by conflicting proxy observations, resulting from the decoupling of regional atmospheric circulation patterns and local rainfall dynamics. These signals are difficult to decipher in paleoclimate reconstructions. Here, we present a winter monsoon speleothem record from Southeast Asia covering the Holocene and find that winter and summer rainfall changed synchronously, forced by changes in the Pacific and Indian Oceans. In contrast, regional atmospheric circulation shows an inverse relation between winter and summer controlled by seasonal insolation over the Northern Hemisphere. We show that disentangling the local and regional signal in paleoclimate reconstructions is crucial in understanding and projecting winter and summer monsoon variability in Southeast Asia.

Suggested Citation

  • Annabel Wolf & Vasile Ersek & Tobias Braun & Amanda D. French & David McGee & Stefano M. Bernasconi & Vanessa Skiba & Michael L. Griffiths & Kathleen R. Johnson & Jens Fohlmeister & Sebastian F. M. Br, 2023. "Deciphering local and regional hydroclimate resolves contradicting evidence on the Asian monsoon evolution," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41373-9
    DOI: 10.1038/s41467-023-41373-9
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    References listed on IDEAS

    as
    1. De’er Zhang & Longhua Lu, 2007. "Anti-correlation of summer/winter monsoons?," Nature, Nature, vol. 450(7168), pages 7-8, November.
    2. Xinyu Wen & Zhengyu Liu & Shaowu Wang & Jun Cheng & Jiang Zhu, 2016. "Correlation and anti-correlation of the East Asian summer and winter monsoons during the last 21,000 years," Nature Communications, Nature, vol. 7(1), pages 1-7, November.
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