Antarctic ice shelf potentially stabilized by export of meltwater in surface river

Nature

Volumn 544, Issue 7650, 2017, Pages 344-348

  Bell, Robin E ^a   Chu, Winnie ^a,b   Kingslake, Jonathan ^a,b   Das, Indrani ^a   Tedesco, Marco ^a,c   Tinto, Kirsty J ^a   Zappa, Christopher J ^a   Frezzotti, Massimo ^d   Boghosian, Alexandra ^a,b   Lee, Won Sang ^e,f  

^a Doherty Earth Observatory of Columbia University   (United States)

^b Howard Hughes Medical Institute   (United States)

^c NASA GODDARD INSTITUTE FOR SPACE STUDIES   (United States)

^d ENEA   (Italy)

^e Korea Polar Research Institute (KOPRI)   (South Korea)

^f University of Science and Technology (UST)   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

SURFACE WATER;

DRAINAGE BASIN; ENVIRONMENTAL CONDITIONS; GLACIER RETREAT; ICE SHELF; ICE STREAM; MELTWATER; RIVER BASIN; SEA LEVEL CHANGE; SURFACE WATER; WATERFALL;

ANTARCTICA; ARTICLE; ICE SHELF; POND; PRIORITY JOURNAL; RIVER; SEA; SEASON; STREAM (RIVER);

AMERY ICE SHELF; ANTARCTIC ICE SHEET; ANTARCTICA; ARCTIC; EAST ANTARCTICA; GREENLAND; LARSEN ICE SHELF; PETERMANN GLACIER; WEST ANTARCTICA;

EID: 85018164299     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature22048     Document Type: Article

References (41)

1. Vieli, A., Payne, A. J., Shepherd, A. & Du, Z. Causes of pre-collapse changes of the Larsen B ice shelf: numerical modelling and assimilation of satellite observations. Earth Planet. Sci. Lett. 259, 297-306 (2007).
2. Scambos, T. A., Bohlander, J. A., Shuman, C. U. & Skvarca, P. Glacier acceleration and thinning after ice shelf collapse in the Larsen B embayment, Antarctica. Geophys. Res. Lett. 31, L18402 (2004).
3. Scambos, T. et al. Ice shelf disintegration by plate bending and hydro-fracture: satellite observations and model results of the 2008 Wilkins ice shelf break-ups. Earth Planet. Sci. Lett. 280, 51-60 (2009).
4. DeConto, R. M. & Pollard, D. Contribution of Antarctica to past and future sea-level rise. Nature 531, 591-597 (2016).
5. Trusel, L. D. et al. Divergent trajectories of Antarctic surface melt under two twenty-first-century climate scenarios. Nat. Geosci. 8, 927-932 (2015).
6. Pollard, D., DeConto, R. M. & Alley, R. B. Potential Antarctic Ice Sheet retreat driven by hydrofracturing and ice cliff failure. Earth Planet. Sci. Lett. 412, 112-121 (2015).
7. Frezzotti, M. Glaciological study in Terra Nova Bay, Antarctica, inferred from remote sensing analysis. Ann. Glaciol. 17, 63-71 (1993).
8. Hall, B. L. Holocene glacial history of Antarctica and the sub-Antarctic islands. Quat. Sci. Rev. 28, 21, 2213-2230 (2009).
9. Studinger. M. S. IceBridge ATM L1B elevation and return strength, version 2. NASA National Snow and Ice Data Center Distributed Active Archive Center, Boulder, Colorado, USA. http://dx.doi.org/10.5067/19SIM5TXKPGT, 2013, updated 2017
10. Dutrieux, P. et al. Basal terraces on melting ice shelves. Geophys. Res. Lett. 41, 5506-5513 (2014).
11. Leuschen, C. et al. IceBridge MCoRDS L1B geolocated radar echo strength profiles, version 2. NASA National Snow and Ice Data Centere Distributed Active Archive Center, Boulder, Colorado, USA. http://dx.doi. org/10.5067/90S1XZRBAX5N (2014, updated 2016).
12. Luckman, A. et al. Basal crevasses in Larsen C Ice Shelf and implications for their global abundance. Cryosphere 6, 113-123 (2012).
13. David, T. W. E. & Priestley, R. E. Geological Observations in Antarctica by the British Antarctic Expedition 1907-1909 (JP Lippincott, 1909).
14. Campbell, V. The Wicked Mate: The Antarctic Diary of Victor Campbell (Bluntisham Books, 1988).
15. Priestley, R. E. Antarctic Adventure: Scott's Northern Party (E.P. Dutton and Company, 1915).
16. Levick, G. M. British Antarctic Expedition Journal (Scott Polar Research Institute Archive Catalogue No. MS1423/1-4, 1912).
17. Fricker, H. A. et al. Redefinition of the Amery Ice Shelf, East Antarctica, grounding zone. J. Geophys. Res. 107, http://dx.doi.org/10.1029/2001JB000383 (2002).
18. Kingslake, J. & Sole, A. Modelling channelized surface drainage of supraglacial lakes. J. Glaciol. 61, 185-199 (2015).
19. Winther, J.-G., Elvehøy, H., Bøggild, C. E., Sand, K. & Liston, G. Melting, runoff and the formation of frozen lakes in a mixed snow and blue-ice field in Dronning Maud Land, Antarctica. J. Glaciol. 42, 271-278 (1996).
20. Leppäranta, M., Järvinen, O. & Mattila, O.-P. Structure and life cycle of supraglacial lakes in Dronning Maud Land. Antarct. Sci. 25, 457-467 (2013).
21. Khazendar, A., Tison, J. L., Stenni, B., Dini, M. & Bondesan, A. Significant marine-ice accumulation in the ablation zone beneath an Antarctic ice shelf. J. Glaciol. 47, 359-368 (2001).
22. Glasser, N. F. et al. Surface structure and stability of the Larsen C ice shelf, Antarctic Peninsula. J. Glaciol. 55, 400-410 (2009).
23. Mellor, M. & McKinnon, G. The Amery Ice Shelf and its hinterland. Polar Rec. 10, 30-34 (1960).
24. Baroni, C., Frezzotti, M., Giraudi, C. & Orombelli, G. Ice flow and surficial variation inferred from satellite image and aerial photograph analysis of Larsen ice tongue, Hells Gate and Nansen ice shelves (Victoria Land, Antarctica). Mem. Soc. Geol. Ital. 46, 69-80 (1991).
25. Yang, K. & Smith, L. C. Supraglacial streams on the Greenland Ice Sheet delineated from combined spectral-shape information in high-resolution satellite imagery. IEEE Geosci. Remote Sens. Lett. 10, 801-805 (2013).
26. Fretwell, P. et al. Bedmap2: improved ice bed, surface and thickness datasets for Antarctica. Cryosphere 7, 375-393 (2013).
27. Kingslake, J. C. E., Ely, J. C., Das, I. & Bell, R. E. Widespread movement of meltwater onto and across Antarctic ice shelves. Nature http://dx.doi.org/10.1038/nature22049.
28. Wright, C. S. & Priestley, R. E. in Glaciology 581 (Harrison and Sons, 1922).
29. Chu, W., Creyts, T. T. & Bell, R. E. Rerouting of subglacial water flow between neighboring glaciers in West Greenland. J. Geophys. Res. 121, 925-938 (2016).
30. Tarboton, D. G. A new method for the determination of flow directions and upslope areas in grid digital elevation models. Wat. Resour. Res. 33, 309-319 (1997).
31. Pope, A. et al. Estimating supraglacial lake depth in West Greenland using Landsat 8 and comparison with other multispectral methods. Cryosphere 10, 15-27 (2016).
32. Legleiter, C. J., Tedesco, M., Smith, L. C., Behar, A. E. & Overstreet, B. T. Mapping the bathymetry of supraglacial lakes and streams on the Greenland ice sheet using field measurements and high-resolution satellite images. Cryosphere 8, 215-228 (2014).
33. Tedesco, M. & Steiner, N. In-situ multispectral and bathymetric measurements over a supraglacial lake in western Greenland using a remotely controlled watercraft. Cryosphere 5, 445-452 (2011).
34. Philpot, W. D. Bathymetric mapping with passive multispectral imagery. Appl. Opt. 28, 1569-1578 (1989).
35. Sneed, W. A. & Hamilton, G. S. Evolution of melt pond volume on the surface of the Greenland Ice Sheet. Geophys. Res. Lett. 34, L03501 (2007).
36. Mobley, C. D., Stramski, D., Bissett, W. P. & Boss, E. Optical modeling of ocean waters: Is the case 1-case 2 classification still useful? Oceanography 17, 60-67 (2004)/.
37. Jones, P. D. & Moberg, A. Hemispheric and large-scale surface air temperature variations: an extensive revision and an update to 2001. J. Clim. 16, 206-223 (2003).
38. Jarosch, A. H. & Gudmundsson, M. T. A numerical model for meltwater channel evolution in glaciers. Cryosphere 6, 493-503 (2012).
39. Fountain, A. G. & Walder, J. S. Water flow through temperate glaciers. Rev. Geophys. 36, 299-328 (1998).
40. Jessup, A. T., Zappa, C. J. & Yeh, H. Defining and quantifying microscale wave breaking with infrared imagery. J. Geophys. Res. 102, 23145-23153 (1997).
41. Van Wessem, J. M. et al. Improved representation of East Antarctic surface mass balance in a regional atmospheric climate model. J. Glaciol. 60, 761-770 (2014).