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Rapid, climate-driven changes in outlet glaciers on the Pacific coast of East Antarctica

Abstract

Observations of ocean-terminating outlet glaciers in Greenland and West Antarctica1,2,3,4,5,6 indicate that their contribution to sea level is accelerating as a result of increased velocity, thinning and retreat7,8,9,10,11. Thinning has also been reported along the margin of the much larger East Antarctic ice sheet1, but whether glaciers are advancing or retreating there is largely unknown, and there has been no attempt to place such changes in the context of localized mass loss7,9 or climatic or oceanic forcing. Here we present multidecadal trends in the terminus position of 175 ocean-terminating outlet glaciers along 5,400 kilometres of the margin of the East Antarctic ice sheet, and reveal widespread and synchronous changes. Despite large fluctuations between glaciers—linked to their size—three epochal patterns emerged: 63 per cent of glaciers retreated from 1974 to 1990, 72 per cent advanced from 1990 to 2000, and 58 per cent advanced from 2000 to 2010. These trends were most pronounced along the warmer western South Pacific coast, whereas glaciers along the cooler Ross Sea coast experienced no significant changes. We find that glacier change along the Pacific coast is consistent with a rapid and coherent response to air temperature and sea-ice trends, linked through the dominant mode of atmospheric variability (the Southern Annular Mode). We conclude that parts of the world’s largest ice sheet may be more vulnerable to external forcing than recognized previously.

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Figure 1: Spatial and temporal variations in EAIS glacier terminus position from all measurements in 1974, 1990, 2000 and 2010.
Figure 2: Changes in glacier terminus position for each epoch for different sets of glaciers.
Figure 3: Time series of the SAM and summer air temperature data alongside changes in glacier terminus positions.

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References

  1. Pritchard, H. D., Arthern, R. J., Vaughan, D. G. & Edwards, L. A. Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets. Nature 461, 971–975 (2009)

    Article  ADS  CAS  Google Scholar 

  2. Moon, T. & Joughin, I. Changes in ice front position on Greenland’s outlet glaciers from 1992 to 2007. J. Geophys. Res. 113, F02022 (2008)

    ADS  Google Scholar 

  3. Wingham, D., Wallis, D. W. & Shepherd, A. Spatial and temporal evolution of Pine Island Glacier thinning, 1995–2006. Geophys. Res. Lett. 36, L17501 (2009)

    Article  ADS  Google Scholar 

  4. Macgregor, J. A., Catania, G. A., Markowski, M. S. & Andrews, A. G. Widespread rifting and retreat of ice-shelf margins in the eastern Amundsen Sea Embayment between 1972 and 2011. J. Glaciol. 58, 458–466 (2012)

    Article  ADS  Google Scholar 

  5. Rignot, E. et al. Accelerated ice discharge from the Antarctic Peninsula following the collapse of Larsen B ice shelf. Geophys. Res. Lett. 31, L18401 (2004)

    Article  ADS  Google Scholar 

  6. Pritchard, H. D. & Vaughan, D. G. Widespread acceleration of tidewater glaciers on the Antarctic Peninsula. J. Geophys. Res. 112, F03S29 (2007)

    ADS  Google Scholar 

  7. Rignot, E. et al. Recent Antarctic mass loss from radar interferometry and regional climate modelling. Nature Geosci. 1, 106–110 (2008)

    Article  ADS  CAS  Google Scholar 

  8. Nick, F. M., Vieli, A., Howat, I. M. & Joughin, I. Large-scale changes in Greenland outlet glacier dynamics triggered at the terminus. Nature Geosci. 2, 110–114 (2009)

    Article  ADS  CAS  Google Scholar 

  9. King, M. A. et al. Lower satellite-gravimetry estimates of Antarctic sea-level contribution. Nature 491, 586–589 (2012)

    Article  ADS  CAS  Google Scholar 

  10. Shepherd, A. et al. A reconciled estimate of ice-sheet mass balance. Science 338, 1183–1189 (2012)

    Article  ADS  CAS  Google Scholar 

  11. Zwally, H. J. & Giovinetto, M. B. Overview and assessment of Antarctic ice sheet mass balance estimates: 1992–2009. Surv. Geophys. 32, 351–376 (2011)

    Article  ADS  Google Scholar 

  12. van den Broeke, M. R. et al. Partitioning recent Greenland mass loss. Science 326, 984–986 (2009)

    Article  ADS  CAS  Google Scholar 

  13. Joughin, I. & Alley, R. B. Stability of the West Antarctic ice sheet in a warming world. Nature Geosci. 4, 506–513 (2011)

    Article  ADS  CAS  Google Scholar 

  14. Pritchard, H. D. et al. Antarctic ice-sheet loss driven by basal melting of ice shelves. Nature 484, 502–505 (2012)

    Article  ADS  CAS  Google Scholar 

  15. Bjørk, A. A. et al. An aerial view of 80 years of climate-related glacier fluctuations in southeast Greenland. Nature Geosci. 5, 427–432 (2012)

    Article  ADS  Google Scholar 

  16. Cook, A., Fox, A. J., Vaughan, D. G. & Ferrigno, J. G. Retreating glacier-fronts on the Antarctic Peninsula over the last 50 years. Science 308, 541–544 (2005)

    Article  ADS  CAS  Google Scholar 

  17. Frezzotti, M., Cimbelli, A. & Ferrigno, J. G. Ice-front change and iceberg behaviour along the Oates and George V Coasts, Antarctica, 1912–1996. Ann. Glaciol. 27, 643–650 (1998)

    Article  ADS  Google Scholar 

  18. Frezzotti, M. & Polizzi, M. 50 years of ice-front changes between Adélie and Banzare Coasts, East Antarctica. Ann. Glaciol. 34, 235–240 (2002)

    Article  ADS  Google Scholar 

  19. Ferraccioli, F. et al. Aeromagnetic exploration over the East Antarctic ice sheet: a new view of the Wilkes subglacial basin. Tectonophysics 478, 62–77 (2009)

    Article  ADS  Google Scholar 

  20. van der Veen, C. J. Fracture mechanics approach to penetration of surface crevasses on glaciers. Cold Reg. Sci. Technol. 27, 31–47 (1998)

    Article  Google Scholar 

  21. Scambos, T. A., Hulbe, C., Fahnestock, M. J. & Bohlander, J. The link between climate warming and break-up of ice shelves in the Antarctic Peninsula. J. Glaciol. 46, 516–530 (2000)

    Article  ADS  Google Scholar 

  22. Hall, A. & Visbeck, M. Synchronous variability in the southern hemisphere atmosphere, sea ice, and ocean resulting from the southern annular mode. J. Clim. 15, 3043–3057 (2002)

    Article  ADS  Google Scholar 

  23. Thompson, D. W. J. & Solomon, S. Interpretation of recent Southern Hemisphere climate change. Science 296, 895–899 (2002)

    Article  ADS  CAS  Google Scholar 

  24. Massom, R. A. et al. Fast ice distribution in Adélie Land, East Antarctica: interannual variability and implications for emperor penguins Aptenodytes forsteri. Mar. Ecol. Prog. Ser. 374, 243–257 (2009)

    Article  ADS  Google Scholar 

  25. Jacobs, S. Observations of change in the Southern Ocean. Phil. Trans. R. Soc. A 364, 1657–1681 (2006)

    Article  ADS  CAS  Google Scholar 

  26. Arblaster, J. M. & Meehl, G. A. Contributions of external forcings to southern annular mode trends. J. Clim. 19, 2896–2905 (2006)

    Article  ADS  Google Scholar 

  27. de la Mare, W. K. Abrupt mid-twentieth century decline in Antarctic sea-ice extent from whaling records. Nature 389, 57–60 (1997)

    Article  ADS  CAS  Google Scholar 

  28. Parkinson, C. L. & Cavalieri, D. J. Antarctic sea ice variability and trends, 1979–2010. Cryosphere 6, 871–880 (2012)

    Article  ADS  Google Scholar 

  29. Amundson, J. M. et al. Ice melange dynamics and implications for terminus stability, Jakobshavns Isbrae, Greenland. J. Geophys. Res. 115, F01005 (2010)

    ADS  Google Scholar 

  30. Rignot, E. Mouginot, J. & Scheuchl, B. Ice flow of the Antarctic ice sheet. Science 333, 1427–1430 (2011)

    Article  ADS  CAS  Google Scholar 

  31. Kim, K., Jezek, K. C. & Liu, H. Orthorectified image mosaic of Antarctica from 1963 Argon satellite photography: image processing and glaciological applications. Int. J. Remote Sens. 28, 5357–5373 (2007)

    Article  ADS  Google Scholar 

  32. Rignot, E., Mouginot, J. & Scheuchl, B. MEaSUREs InSAR-based velocity map [version 1.0]. National Snow and Ice Data Center (2011)

  33. Rignot, E., Mouginot, J. & Scheuchl, B. Antarctic grounding line mapping from differential satellite radar interferometry. Geophys. Res. Lett. 38, L10504 (2011)

    Article  ADS  Google Scholar 

  34. Blair, R. & Higgins, J. T. A comparison of the power of Wilcoxon’s rank-sum statistic to that of the Student’s t statistic under various non-normal distributions. J. Educ. Stat. 5, 309–335 (1980)

    Google Scholar 

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Acknowledgements

Landsat imagery was provided free of charge by the US Geological Survey Earth Resources Observation Science Centre. We thank H. Pritchard for supplying data on glacier thinning.

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Authors

Contributions

C.R.S and A.V. had the idea for the research. B.W.J.M. designed and undertook the mapping and data collection, and led the climate analysis. N.J.C. led the statistical analysis and all authors contributed to the analysis and interpretation of the results. C.R.S. wrote the first draft of the paper and all authors contributed to writing the manuscript.

Corresponding author

Correspondence to C. R. Stokes.

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The authors declare no competing financial interests.

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Supplementary Information

This file contains Supplementary Tables 1-6, Supplementary Figures 1-7, a Supplementary Appendix, which contains tables A1-A2. (PDF 1291 kb)

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Miles, B., Stokes, C., Vieli, A. et al. Rapid, climate-driven changes in outlet glaciers on the Pacific coast of East Antarctica. Nature 500, 563–566 (2013). https://doi.org/10.1038/nature12382

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