Large-scale changes in Greenland outlet glacier dynamics triggered at the terminus

Nature Geoscience

Volumn 2, Issue 2, 2009, Pages 110-114

  Nick, Faezeh M ^a,b   Vieli, Andreas ^a   Howat, Ian M ^b   Joughin, Ian ^c,d  

^a DURHAM UNIVERSITY   (United Kingdom)

^b GEOLOGICAL SURVEY OF DENMARK AND GREENLAND   (Denmark)

^c OHIO STATE UNIVERSITY   (United States)

^d UNIVERSITY OF WASHINGTON   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 65349131259     PISSN: 17520894     EISSN: 17520908     Source Type: Journal    
DOI: 10.1038/ngeo394     Document Type: Article

References (30)

1. Rignot, E. & Kanagaratnam, P. Changes in velocity structure of the Greenland ice sheet. Science 311, 986-990 (2006).
2. Howat, I. M., Joughin, I., Tulaczyk, S. & Gogineni, S. Rapid retreat and acceleration of Helheim Glacier, east Greenland. Geophys. Res. Lett. 32, L22502 (2005).
3. Joughin, I., Abdalati, W. & Fahnestock, M. Large fluctuations in speed on Greenland's Jakobhavn Isbrae glacier. Nature 432, 608-610 (2004).
4. Stearns, L. A. & Hamilton, G. S. Rapid volume loss from two East Greenland outlet glaciers quantified using repeat stereo satellite imagery. Geophys. Res. Lett. 34, L05503 (2007).
5. Krabill, W. et al. Greenland ice sheet: Increased coastal thinning. Geophys. Res. Lett. 31, L24402(2004).
6. Vaughan, D. G. & Arthern, R. Why is it so hard to predict the future of ice sheets. Science 315, 1508-1510 (2007).
7. Alley, R. B., Clark, P. U., Huybrechts, P. & Joughin, I. Ice-sheet and sea-level change. Science 310, 456-460 (2005).
8. Bamber, J. L., Alley, R. B. & Joughin, I. Rapid response of modern day ice sheets to external forcing. Earth Planet. Res. Lett. 257, 1-13 (2007).
9. Solomon, S. et al. IPCC. Climate change, 2007: The Physical Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Technical Report (Cambridge Univ. Press, 2007).
10. Thomas, R. B. Force-perturbation analysis of recent thinning and acceleration of Jakobshavn Isbrae, Greenland. J. Glaciol. 50, 57-66 (2004).
11. Sohn, H. G., Jezek, K. C. & Van der Veen, C. J. Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations. Geophys. Res. Lett. 25, 2699-2702(1998).
12. Howat, I. H., Joughin, I. & Scambos, T. A. Rapid changes of ice discharge from Greenland outlet glaciers. Science 315, 1559-1561 (2007).
13. Meier, M. F. & Post, A. Fast tidewater glaciers. J. Geophys. Res. 92, 9051-9058(1987).
14. Van der Veen, C. J. Tidewater calving. J. Glaciol. 42, 375-385 (1996).
15. Vieli, A., Funk, M. & Blatter, H. Flow dynamics of tidewater glaciers: A numerical modelling approach. J. Glaciol. 47, 595-606 (2001).
16. Zwally, H. J. et al. Surface melt-induced acceleration of Greenland ice-sheet flow. Science 297, 218-222 (2002).
17. Parizek, B. R. & Alley, R. B. Implications of increased Greenland surface melt under global-warming scenarios: Ice sheet simulations. Quat. Sci. Rev. 23, 1013-1027 (2004).
18. Schoof, C. Ice sheet grounding line dynamics: Steady states, stability and hysteresis. J. Geophys. Res. 112, F02528 (2007).
19. Pfeffer, W. T. A simple mechanism for irreversible tidewater glacier retreat. J Geophys. Res. 112, F03S25 (2007).
20. Joughin, I. et al. Ice-front variation and tidewater behaviour on Helheim and Kangerdlugssuaq Glaciers, Greenland. J. Geophys. Res. 113, F01004 (2008).
21. Joughin, I. et al. Seasonal speedup along the Western margin of the Greenland ice sheet. Science 320, 781-783 (2008).
22. Holland, D. M., Thomas, R. H., De Young, B., Ribergaard, M. H. & Lyberth, B. Acceleration of Jakobshavn Isbrae triggered by warm subsurface ocean waters. Nature Geosci. 1, 659-664 (2008).
23. Howat, I., Joughin, I., Fahnestock, M., Smith, B. & Scambos, T. Synchronous retreat and acceleration of southeast Greenland outlet glaciers 2000-06: Ice dynamics and coupling to climate. J. Glaciol. 54, 646-660 (2008).
24. Moon, T. & Joughin, I. Changes in ice front position on Greenland's outlet glaciers from 1992 to 2007. J. Geophys. Res. 113, F02022 (2008).
25. Price, S. F., Conway, H., Waddington, E. D. & Bindschadler, R. A. Model investigations of inland migration of fast-flowing outlet glaciers and ice streams. J. Glaciol. 54, 49-60(2008).
26. Joughin, I., Rignot, E., Rosanova, C. E., Luchitta, B. K. & Bohlander, J. Timing of recent accelerations of Pine Island glacier, Antarctica. Geophys. Res. Lett. 30, 1706 (2003).
27. Payne, A. J., Vieli, A., Shepherd, A. P., Wingham, D. J. & Rignot, E. Recent dramatic thinning oflargest West Antarctic ice stream triggered by oceans. Geophys. Res. Lett. 31, L23401 (2004).
28. Bindschadler, R. Actively surging West Antarctic ice streams and their response characteristics. Ann. Glaciol. 24, 409-414 (1997).
29. Gregory, J. M., Huybrechts, P. & Raper, S. C. B. Threatened loss of the Greenland ice-sheet. Nature 428, 616 (2004).
30. Joughin, I. et al. Continued evolution of Jakobshavn Isbrae following its rapid speedup. J. Geophys. Res. 113, F04006 (2008).