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Asynchrony of Antarctic and Greenland climate change during the last glacial period

Author

Listed:
  • T. Blunier

    (Climate and Environmental Physics, Physics Institute, University of Bern)

  • J. Chappellaz

    (CNRS Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE))

  • J. Schwander

    (Climate and Environmental Physics, Physics Institute, University of Bern)

  • A. Dällenbach

    (Climate and Environmental Physics, Physics Institute, University of Bern)

  • B. Stauffer

    (Climate and Environmental Physics, Physics Institute, University of Bern)

  • T. F. Stocker

    (Climate and Environmental Physics, Physics Institute, University of Bern)

  • D. Raynaud

    (CNRS Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE))

  • J. Jouzel

    (CNRS Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE)
    Laboratoire des Sciences du Climat et de l'Environnement)

  • H. B. Clausen

    (Department of Geophysics (NBIfAPG) University of Copenhagen)

  • C. U. Hammer

    (Department of Geophysics (NBIfAPG) University of Copenhagen)

  • S. J. Johnsen

    (Department of Geophysics (NBIfAPG) University of Copenhagen
    Science Institute, University of Iceland)

Abstract

A central issue in climate dynamics is to understand how the Northern and Southern hemispheres are coupled during climate events. The strongest of the fast temperature changes observed in Greenland (so-called Dansgaard–Oeschger events) during the last glaciation have an analogue in the temperature record from Antarctica. A comparison of the global atmospheric concentration of methane as recorded in ice cores from Antarctica and Greenland permits a determination of the phase relationship (in leads or lags) of these temperature variations. Greenland warming events around 36 and 45 kyr before present lag their Antarctic counterpart by more than 1 kyr. On average, Antarctic climate change leads that of Greenland by 1–2.5 kyr over the period 47–23 kyr before present.

Suggested Citation

  • T. Blunier & J. Chappellaz & J. Schwander & A. Dällenbach & B. Stauffer & T. F. Stocker & D. Raynaud & J. Jouzel & H. B. Clausen & C. U. Hammer & S. J. Johnsen, 1998. "Asynchrony of Antarctic and Greenland climate change during the last glacial period," Nature, Nature, vol. 394(6695), pages 739-743, August.
    • Handle: RePEc:nat:nature:v:394:y:1998:i:6695:d:10.1038_29447
    DOI: 10.1038/29447
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    Cited by:

    1. Megan Ceronsky & David Anthoff & Cameron Hepburn & Richard S.J. Tol, 2005. "Checking The Price Tag On Catastrophe: The Social Cost Of Carbon Under Non-Linear Climate Response," Working Papers FNU-87, Research unit Sustainability and Global Change, Hamburg University, revised Aug 2005.
    2. Jing Song, 2023. "Ice Core Methane Analytical Techniques, Chronology and Concentration History Changes: A Review," Sustainability, MDPI, vol. 15(12), pages 1-19, June.

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