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Increased Indian Ocean-North Atlantic Ocean warming chain under greenhouse warming

Author

Listed:
  • Young-Min Yang

    (Nanjing University of Information Science and Technology
    Chinese Academy of Sciences)

  • Jae-Heung Park

    (Pohang University of Science and Technology)

  • Soon-Il An

    (Pohang University of Science and Technology
    Yonsei University)

  • Sang-Wook Yeh

    (Hanyang University, ERICA)

  • Zhiwei Zhu

    (Nanjing University of Information Science and Technology)

  • Fei Liu

    (School of Atmospheric Sciences Sun Yat-Sen University, Key Laboratory of Tropical Atmosphere-Ocean System Ministry of Education, and Southern Marine Science and Engineering Guangdong Laboratory)

  • Juan Li

    (Nanjing University of Information Science and Technology)

  • June-Yi Lee

    (Pusan National University
    Institute for Basic Science)

  • Bin Wang

    (Nanjing University of Information Science and Technology
    University of Hawaii)

Abstract

Over the past half a century, both the Indian Ocean (IO) and the North Atlantic Ocean (NA) exhibit strong warming trends like a global mean surface temperature (SST). Here, we show that not only simply as a result of increased greenhouse gases, but the IO-NA interaction through atmospheric teleconnection boosts up their warming trends. Climate model simulations demonstrate that the IO warming increases the NA SST by enhancing the longwave radiation through atmospheric teleconnection, subsequently, the warmer NA SST-induced atmospheric teleconnection leads to IO warming by reducing evaporative cooling with weakened surface winds. This two-way interaction (i.e., IO-NA warming chain) acts as positive feedback that reinforces warming over both ocean basins. The Pacific Ocean is partly involved in this warming chain as a modulator in an interdecadal timescale. These results highlight the importance of understanding ocean-basin interactions that may provide a more accurate future projection of warming.

Suggested Citation

  • Young-Min Yang & Jae-Heung Park & Soon-Il An & Sang-Wook Yeh & Zhiwei Zhu & Fei Liu & Juan Li & June-Yi Lee & Bin Wang, 2022. "Increased Indian Ocean-North Atlantic Ocean warming chain under greenhouse warming," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31676-8
    DOI: 10.1038/s41467-022-31676-8
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    References listed on IDEAS

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    1. Xichen Li & Shang-Ping Xie & Sarah T. Gille & Changhyun Yoo, 2016. "Atlantic-induced pan-tropical climate change over the past three decades," Nature Climate Change, Nature, vol. 6(3), pages 275-279, March.
    2. Shineng Hu & Alexey V. Fedorov, 2019. "Indian Ocean warming can strengthen the Atlantic meridional overturning circulation," Nature Climate Change, Nature, vol. 9(10), pages 747-751, October.
    3. Mahyar Mohtadi & Matthias Prange & Delia W. Oppo & Ricardo De Pol-Holz & Ute Merkel & Xiao Zhang & Stephan Steinke & Andreas Lückge, 2014. "North Atlantic forcing of tropical Indian Ocean climate," Nature, Nature, vol. 509(7498), pages 76-80, May.
    4. Shineng Hu & Alexey V. Fedorov, 2020. "Indian Ocean warming as a driver of the North Atlantic warming hole," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    5. Young-Min Yang & Jae-Heung Park & Soon-Il An & Bin Wang & Xiao Luo, 2021. "Mean sea surface temperature changes influence ENSO-related precipitation changes in the mid-latitudes," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
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