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Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand

Author

Listed:
  • Eelco J. Rohling

    (The Australian National University
    National Oceanography Centre)

  • Fiona D. Hibbert

    (The Australian National University)

  • Katharine M. Grant

    (The Australian National University)

  • Eirik V. Galaasen

    (University of Bergen)

  • Nil Irvalı

    (University of Bergen)

  • Helga F. Kleiven

    (University of Bergen)

  • Gianluca Marino

    (The Australian National University
    University of Vigo)

  • Ulysses Ninnemann

    (University of Bergen)

  • Andrew P. Roberts

    (The Australian National University)

  • Yair Rosenthal

    (Rutgers University)

  • Hartmut Schulz

    (University of Tuebingen)

  • Felicity H. Williams

    (The Australian National University)

  • Jimin Yu

    (The Australian National University)

Abstract

The last interglacial (LIG; ~130 to ~118 thousand years ago, ka) was the last time global sea level rose well above the present level. Greenland Ice Sheet (GrIS) contributions were insufficient to explain the highstand, so that substantial Antarctic Ice Sheet (AIS) reduction is implied. However, the nature and drivers of GrIS and AIS reductions remain enigmatic, even though they may be critical for understanding future sea-level rise. Here we complement existing records with new data, and reveal that the LIG contained an AIS-derived highstand from ~129.5 to ~125 ka, a lowstand centred on 125–124 ka, and joint AIS + GrIS contributions from ~123.5 to ~118 ka. Moreover, a dual substructure within the first highstand suggests temporal variability in the AIS contributions. Implied rates of sea-level rise are high (up to several meters per century; m c−1), and lend credibility to high rates inferred by ice modelling under certain ice-shelf instability parameterisations.

Suggested Citation

  • Eelco J. Rohling & Fiona D. Hibbert & Katharine M. Grant & Eirik V. Galaasen & Nil Irvalı & Helga F. Kleiven & Gianluca Marino & Ulysses Ninnemann & Andrew P. Roberts & Yair Rosenthal & Hartmut Schulz, 2019. "Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12874-3
    DOI: 10.1038/s41467-019-12874-3
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    Cited by:

    1. David K. Hutchinson & Laurie Menviel & Katrin J. Meissner & Andrew McC. Hogg, 2024. "East Antarctic warming forced by ice loss during the Last Interglacial," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Mutsumi Iizuka & Osamu Seki & David J. Wilson & Yusuke Suganuma & Keiji Horikawa & Tina Flierdt & Minoru Ikehara & Takuya Itaki & Tomohisa Irino & Masanobu Yamamoto & Motohiro Hirabayashi & Hiroyuki M, 2023. "Multiple episodes of ice loss from the Wilkes Subglacial Basin during the Last Interglacial," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Ilaria Crotti & Aurélien Quiquet & Amaelle Landais & Barbara Stenni & David J. Wilson & Mirko Severi & Robert Mulvaney & Frank Wilhelms & Carlo Barbante & Massimo Frezzotti, 2022. "Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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