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Deglacial mobilization of pre-aged terrestrial carbon from degrading permafrost

Author

Listed:
  • Maria Winterfeld

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

  • Gesine Mollenhauer

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

  • Wolf Dummann

    (University of Bremen
    University of Cologne)

  • Peter Köhler

    (Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar-und Meeresforschung (AWI))

  • Lester Lembke-Jene

    (Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar-und Meeresforschung (AWI))

  • Vera D. Meyer

    (Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar-und Meeresforschung (AWI))

  • Jens Hefter

    (Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar-und Meeresforschung (AWI))

  • Cameron McIntyre

    (ETH Zürich
    Scottish Universities Environmental Research Centre)

  • Lukas Wacker

    (ETH Zürich)

  • Ulla Kokfelt

    (Geological Survey of Denmark and Greenland)

  • Ralf Tiedemann

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

Abstract

The mobilization of glacial permafrost carbon during the last glacial–interglacial transition has been suggested by indirect evidence to be an additional and significant source of greenhouse gases to the atmosphere, especially at times of rapid sea-level rise. Here we present the first direct evidence for the release of ancient carbon from degrading permafrost in East Asia during the last 17 kyrs, using biomarkers and radiocarbon dating of terrigenous material found in two sediment cores from the Okhotsk Sea. Upscaling our results to the whole Arctic shelf area, we show by carbon cycle simulations that deglacial permafrost-carbon release through sea-level rise likely contributed significantly to the changes in atmospheric CO2 around 14.6 and 11.5 kyrs BP.

Suggested Citation

  • Maria Winterfeld & Gesine Mollenhauer & Wolf Dummann & Peter Köhler & Lester Lembke-Jene & Vera D. Meyer & Jens Hefter & Cameron McIntyre & Lukas Wacker & Ulla Kokfelt & Ralf Tiedemann, 2018. "Deglacial mobilization of pre-aged terrestrial carbon from degrading permafrost," Nature Communications, Nature, vol. 9(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06080-w
    DOI: 10.1038/s41467-018-06080-w
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    Cited by:

    1. Junjie Wu & Gesine Mollenhauer & Ruediger Stein & Peter Köhler & Jens Hefter & Kirsten Fahl & Hendrik Grotheer & Bingbing Wei & Seung-Il Nam, 2022. "Deglacial release of petrogenic and permafrost carbon from the Canadian Arctic impacting the carbon cycle," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. 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.

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