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Enhanced Arctic sea ice melting controlled by larger heat discharge of mid-Holocene rivers

Author

Listed:
  • Jiang Dong

    (Ministry of Natural Resources)

  • Xuefa Shi

    (Ministry of Natural Resources
    Pilot Qingdao National Laboratory for Marine Science and Technology)

  • Xun Gong

    (China University of Geosciences
    China University of Geosciences
    Qilu University of Technology (Shandong Academy of Sciences)
    Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung)

  • Anatolii S. Astakhov

    (Far Eastern Branch of Russian Academy of Sciences)

  • Limin Hu

    (Pilot Qingdao National Laboratory for Marine Science and Technology
    Ocean University of China)

  • Xiting Liu

    (Pilot Qingdao National Laboratory for Marine Science and Technology
    Ocean University of China)

  • Gang Yang

    (Ministry of Natural Resources)

  • Yixuan Wang

    (Chinese Academy of Sciences)

  • Yuri Vasilenko

    (Far Eastern Branch of Russian Academy of Sciences)

  • Shuqing Qiao

    (Ministry of Natural Resources
    Pilot Qingdao National Laboratory for Marine Science and Technology)

  • Alexander Bosin

    (Far Eastern Branch of Russian Academy of Sciences)

  • Gerrit Lohmann

    (Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
    University of Bremen)

Abstract

Arctic sea ice retreat is linked to extrapolar thermal energy import, while the potential impact of pan-Arctic river heat discharge on sea-ice loss has been unresolved. We reconstructed the Holocene history of Arctic sea ice and Russian pan-Arctic river heat discharge, combining ice-rafted debris records and sedimentation rates from the East Siberian Arctic Shelf with a compilation of published paleoclimate and observational data. In the mid-Holocene, the early summer (June–July) solar insolation was higher than that during the late Holocene, which led to a larger heat discharge of the Russian pan-Arctic rivers and contributed to more Arctic sea ice retreat. This intensified decline of early-summer sea ice accelerated the melting of sea ice throughout the summertime by lowering regional albedos. Our findings highlight the important impact of the larger heat discharge of pan-Arctic rivers, which can reinforce Arctic sea-ice loss in the summer in the context of global warming.

Suggested Citation

  • Jiang Dong & Xuefa Shi & Xun Gong & Anatolii S. Astakhov & Limin Hu & Xiting Liu & Gang Yang & Yixuan Wang & Yuri Vasilenko & Shuqing Qiao & Alexander Bosin & Gerrit Lohmann, 2022. "Enhanced Arctic sea ice melting controlled by larger heat discharge of mid-Holocene rivers," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-33106-1
    DOI: 10.1038/s41467-022-33106-1
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    References listed on IDEAS

    as
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