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Abstract

On entering an era of global warming, the stability of the Greenland ice sheet (GIS) is an important concern1, especially in the light of new evidence of rapidly changing flow and melt conditions at the GIS margins2. Studying the response of the GIS to past climatic change may help to advance our understanding of GIS dynamics. The previous interpretation of evidence from stable isotopes (δ18O) in water from GIS ice cores was that Holocene climate variability on the GIS differed spatially3 and that a consistent Holocene climate optimum—the unusually warm period from about 9,000 to 6,000 years ago found in many northern-latitude palaeoclimate records4—did not exist. Here we extract both the Greenland Holocene temperature history and the evolution of GIS surface elevation at four GIS locations. We achieve this by comparing δ18O from GIS ice cores3,5 with δ18O from ice cores from small marginal icecaps. Contrary to the earlier interpretation of δ18O evidence from ice cores3,6, our new temperature history reveals a pronounced Holocene climatic optimum in Greenland coinciding with maximum thinning near the GIS margins. Our δ18O-based results are corroborated by the air content of ice cores, a proxy for surface elevation7. State-of-the-art ice sheet models are generally found to be underestimating the extent and changes in GIS elevation and area; our findings may help to improve the ability of models to reproduce the GIS response to Holocene climate.

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References

  1. 1.

    et al. Ice-sheet and sea-level changes. Science 310, 456–460 (2005)

  2. 2.

    & Changes in the velocity structure of the Greenland Ice Sheet. Science 311, 986–990 (2006)

  3. 3.

    & in Encyclopedia of Quaternary Science (ed. Elias, S.) Vol., 2 1250–1258 (Elsevier, 2007)

  4. 4.

    et al. Holocene thermal maximum in the western Arctic (0–180°W). Quat. Sci. Rev. 23, 529–560 (2004)

  5. 5.

    et al. Inter-comparison of ice core δ18O and precipitation records from sites in Canada and Greenland over the last 3500 years and over the last few centuries in detail using EOF techniques. NATO ASI Ser. 141, 297–328 (1996)

  6. 6.

    et al. Holocene climatic changes in Greenland: different deuterium excess signals at Greenland Ice Core Project (GRIP) and NorthGRIP. J. Geophys. Res. 110, D14102 (2005)

  7. 7.

    & Climatic implications of total gas content in ice at Camp Century. Nature 243, 283–284 (1973)

  8. 8.

    & A record of Holocene summer climate from a Canadian high-Arctic ice core. Nature 343, 630–632 (1990)

  9. 9.

    et al. A new Greenland ice core chronology for the last glacial termination. J. Geophys. Res. 111, D06102 10.1029/2005JD006079 (2006)

  10. 10.

    et al. A synchronized dating of three Greenland ice cores throughout the Holocene. J. Geophys. Res. 111 D13102 10.1029/2005JD006921 (2006)

  11. 11.

    et al. Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology. J. Geophys. Res. 113 D08115 10.1029/2007JD009143 (2008)

  12. 12.

    et al. Greenland ice sheet evidence of post-glacial volcanism and its climatic impact. Nature 288, 230–235 (1980)

  13. 13.

    & Temperature, accumulation, and ice sheet elevation in central Greenland through the last deglacial transition. J. Geophys. Res. 102, 26383–26396 (1997)

  14. 14.

    et al. A deep ice core from east Greenland. Meddr Grønl. 29, 3–29 (1992)

  15. 15.

    Studies of glacial history in Arctic Canada. I. Pumice, radiocarbon dates and differential post-glacial uplift in the eastern Queen Elizabeth Islands. Can. J. Earth Sci. 7, 634–664 (1970)

  16. 16.

    Holocene stratigraphy and vegetation history in the Scoresby Sund area, East Greenland. Grønl. Geol. Unders. Bull. 129 (1978)

  17. 17.

    & Forms, response times and variability of relative sea-level curves, glaciated North America. Geomorphology 32, 315–333 (2000)

  18. 18.

    et al. A long term numerical solution for the insolation quantities of Earth. Astron. Astrophys. 428, 261–285 (2004)

  19. 19.

    & Estimating the basal melt rate at NorthGRIP using a Monte Carlo technique. Ann. Glaciol. 45, 137–142 (2007)

  20. 20.

    et al. Dating the Dye-3 ice core by flow model calculations. Am. Geophys. Un. Geophys. Monogr. 33, 57–65 (1985)

  21. 21.

    et al. Air content along the Greenland Ice Core Project core: a record of surface climatic parameters and elevation in central Greenland. J. Geophys. Res. 102, 26607–26613 (1997)

  22. 22.

    et al. Sea-level and deep water temperature changes derived from benthic foraminifera isotopic records. Quat. Sci. Rev. 21, 295–305 (2002)

  23. 23.

    et al. Past temperatures directly from the Greenland ice sheet. Science 282, 268–271 (1998)

  24. 24.

    & Glaciated landscapes along Smith Sound, Ellesmere Island, Canada and Greenland. Ann. Glaciol. 28, 40–46 (1999)

  25. 25.

    et al. Late Weichselian relative sea-level changes and ice sheet history in southeast Greenland. Earth Planet. Sci. Lett. 272, 8–18 (2008)

  26. 26.

    et al. Greenland palaeotemperatures derived from GRIP bore hole temperature and ice core isotope profiles. Tellus B 47, 624–629 (1995)

  27. 27.

    Sea-level changes at the LGM from ice-dynamic reconstructions of the Greenland and Antarctic ice sheets during the glacial cycles. Quat. Sci. Rev. 21, 203–231 (2002)

  28. 28.

    & Greenland glacial history, borehole constraints and Eemian extent. J. Geophys. Res. 108 (B3). 2124–2143 (2003)

  29. 29.

    Relation of measured basal temperatures and the spatial distribution of the geothermal heat flux for the Greenland ice sheet. Ann. Glaciol. 42, 424–432 (2005)

  30. 30.

    et al. Tracer transport in the Greenland Ice Sheet: constraints on ice cores and glacial history. Quat. Sci. Rev. 24, 173–194 (2005)

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Acknowledgements

We thank laboratory technician A. Boas, who meticulously performed most of the stable-isotope measurements presented in this paper during her 38 years at the Copenhagen stable isotope laboratory; W. Blake Jr for providing his insight, suggestions and corrections during the drafting of this paper; R. Greve for providing elevation data from his GIS modelling effort. B.M.V. thanks the Carlsberg Foundation for funding, and the Climatic Research Unit at University of East Anglia for hosting his research during all of 2007. V.L. and D.R. thank the Groupement de Recherche Européen (GDRE) Vostok (Institut national des sciences de l’Univers (INSU)/Centre national de la recherche scientifique (CNRS) for funding and Russian Foundation for Basic Research (RFBR)–CNRS grant 05-05-66801) for support.

Author information

Author notes

    • R. M. Koerner

    Deceased.

Affiliations

  1. Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Oe, Denmark

    • B. M. Vinther
    • , S. L. Buchardt
    • , H. B. Clausen
    • , D. Dahl-Jensen
    • , S. J. Johnsen
    • , K. K. Andersen
    • , T. Blunier
    • , S. O. Rasmussen
    • , J. P. Steffensen
    •  & A. M. Svensson
  2. Glaciology Section, Terrain Sciences Division, Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario, Canada K1A 0E8

    • D. A. Fisher
    •  & R. M. Koerner
  3. Laboratoire de Glaciologie et Géophysique de l’Environnement, CNRS/UJF, BP 96, 38402 Saint-Martin-d’Hères, France

    • D. Raynaud
  4. Arctic and Antarctic Research Institute, 38 Bering Street, St Petersburg 199397, Russia

    • V. Lipenkov

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Correspondence to B. M. Vinther.

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    Supplementary Information

    This file contains Supplementary Notes, Supplementary Figures S1-S4 with Legends, Supplementary Tables S1-S2 and Supplementary References.

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https://doi.org/10.1038/nature08355

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