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Recent Walker circulation strengthening and Pacific cooling amplified by Atlantic warming

Author

Listed:
  • Shayne McGregor

    (ARC Centre of Excellence for Climate System Science, UNSW)

  • Axel Timmermann

    (International Pacific Research Center, SOEST, University of Hawaii)

  • Malte F. Stuecker

    (SOEST, University of Hawaii)

  • Matthew H. England

    (ARC Centre of Excellence for Climate System Science, UNSW)

  • Mark Merrifield

    (SOEST, University of Hawaii)

  • Fei-Fei Jin

    (SOEST, University of Hawaii)

  • Yoshimitsu Chikamoto

    (International Pacific Research Center, SOEST, University of Hawaii)

Abstract

The Pacific trade winds have strengthened since the late 1990s, and there has been related strengthening of the atmospheric Walker circulation. Although the impacts of these changes are becoming known, their cause has not been identified. This study, using observations and models, shows that warming of the Atlantic sea surface and corresponding displacement of atmospheric pressure centres are key drivers.

Suggested Citation

  • Shayne McGregor & Axel Timmermann & Malte F. Stuecker & Matthew H. England & Mark Merrifield & Fei-Fei Jin & Yoshimitsu Chikamoto, 2014. "Recent Walker circulation strengthening and Pacific cooling amplified by Atlantic warming," Nature Climate Change, Nature, vol. 4(10), pages 888-892, October.
    • Handle: RePEc:nat:natcli:v:4:y:2014:i:10:d:10.1038_nclimate2330
    DOI: 10.1038/nclimate2330
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