Oceanic mechanical forcing of a marine-terminating greenland glacier

Annals of Glaciology

Volumn 53, Issue 60, 2012, Pages 181-192

  Walter, Jacob I ^a   Box, Jason E ^b   Tulaczyk, Slawek ^a   Brodsky, Emily E ^a   Howat, Ian M ^b   Ahn, Yushin ^c   Brown, Abel ^b  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b OHIO STATE UNIVERSITY   (United States)

^c MICHIGAN TECHNOLOGICAL UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GLACIER; ICE FLOW; ICE SHEET; MELANGE; SEA ICE;

ARCTIC; GREENLAND; GREENLAND ICE SHEET;

EID: 84870868803     PISSN: 02603055     EISSN: None     Source Type: Journal    
DOI: 10.3189/2012AoG60A083     Document Type: Article

References (42)

1. Ahn Y and Box JE (2010) Glacier velocities from time-lapse photos: technique development and first results from the Extreme Ice Survey (EIS) in Greenland. J. Glaciol., 56(198), 723-734 (dio:10.3189/002214310793146313).
2. Ahn Y and Howat IM (2011) Efficient automated glacier surface velocity measurement from repeat images using multi-image/multichip and null exclusion feature tracking. IEEE Trans. Geosci. Remote Sens., 49(8), 2838-2846 (dio:10.1109/TGRS.2011.2114891).
3. Alley RB and 7 others (2008) A simple law for ice-shelf calving. Science, 322(5906), 1344 (dio:10.1126/science.1162543).
4. Amundson JM, Fahnestock M, Truffer M, Brown J, Lüthi MP and Motyka RJ (2010) Ice mélange dynamics and implications for terminus stability, Jakobshavn Isbræ, Greenland. J. Geophys. Res., 115(F1), F01005 (dio:10.1029/2009JF001405).
5. Anandakrishnan S and Bentley CR (1993) Micro-earthquakes beneath Ice Streams B and C, West Antarctica: observations and implications. J. Glaciol., 39(133), 455-462.
6. Anandakrishnan S, Voigt DE, Alley RB and King MA (2003) Ice Stream D flow speed is strongly modulated by the tide beneath the Ross Ice Shelf. Geophys. Res. Lett., 30(7), 1361 (dio:10.1029/2002GL016329).
7. Benn DI, Warren CW and Mottram RH (2007) Calving processes and the dynamics of calving glaciers. Earth-Sci. Rev., 82(3-4), 143-179 (dio:10.1016/j.earscirev.2007.02.002).
8. Bindschadler R (1983) The importance of pressurized subglacial water in separation and sliding at the glacier bed. J. Glaciol., 29(101), 3-19.
9. Bindschadler RA, King MA, Alley RB, Anandakrishnan S and Padman L (2003) Tidally controlled stick-slip discharge of a West Antarctic ice stream. Science, 301(5636), 1087-1089.
10. De Juan J and 12 others (2010) Sudden increase in tidal response linked to calving and acceleration at a large Greenland outlet glacier. Geophys. Res. Lett., 37(12), L12501 (dio:10.1029/2010GL043289).
11. Echelmeyer KA and Kamb B (1986) Stress-gradient coupling in glacier flow: II. Longitudinal averaging of the flow response to small perturbations in ice thickness and surface slope. J. Glaciol., 32(111), 285-298.
12. Ekström G, Nettles M and Abers GA (2003) Glacial earthquakes. Science, 302(5645), 622-624 (dio:10.1126/science.1088057).
13. Gudmundsson GH (2007) Tides and the flow of Rutford Ice Stream, West Antarctica. J. Geophys. Res., 112(F4), F04007 (dio:10.1029/2006JF000731).
14. Holland DM, Thomas RH, de Young B, Ribergaard MH and Lyberth B (2008) Acceleration of Jakobshavn Isbræ triggered by warm subsurface ocean waters. Nature Geosci., 1(10), 659-664 (dio:10.1038/ngeo316).
15. Howat IM, Joughin I, Tulaczyk S and Gogineni S (2005) Rapid retreat and acceleration of Helheim Glacier, east Greenland. Geophys. Res. Lett., 32(22), L22502 (dio:10.1029/2005GL024737).
16. Howat IM, Joughin IR and Scambos TA (2007) Rapid changes in ice discharge from Greenland outlet glaciers. Science, 315(5818), 1559-1561.
17. Howat IM, Box JE, Ahn Y, Herrington A and McFadden EM (2010) Seasonal variability in the dynamics of marine-terminating outlet glaciers in Greenland. J. Glaciol., 56(198), 601-613 (dio:10.3189/002214310793146232).
18. Joughin I and 7 others (2008) Continued evolution of Jakobshavn Isbræ following its rapid speedup. J. Geophys. Res., 113(F4), F04006 (dio:10.1029/2008JF001023).
19. Kamb B, Engelhardt H, Fahnestock MA, Humphrey N, Meier M and Stone D (1994) Mechanical and hydrologic basis for the rapid motion of a large tidewater glacier. 2. Interpretation. J. Geophys. Res., 99(B8), 15 231-15 244.
20. Mair D, Nienow P, Sharp M, Wohlleben T and Willis I (2002) Influence of subglacial drainage system evolution on glacier surface motion: Haut Glacier d'Arolla, Switzerland. J. Geophys. Res., 107(B8), 2175 (dio:10.1029/ 2001JB000514).
21. Mankoff KD, Jacobs SS, Tulaczyk SM and Stammerjohn SE (2012) The role of Pine Island Glacier ice shelf basal channels in deep water upwelling, polynyas and ocean circulation in Pine Island Bay, Antarctica. Ann. Glaciol., 53(60 Pt 1), 123-128.
22. Meier MF and Post A (1987) Fast tidewater glaciers. J. Geophys. Res., 92(B9), 9051-9058.
23. Meier M and 9 others (1994) Mechanical and hydrologic basis for the rapid motion of a large tidewater glacier. 1. Observations. J. Geophys. Res., 99(B8), 15 219-15 229.
24. Mortensen J, Lennert K, Bendtsen J and Rysgaard S (2011) Heat sources for glacial melt in a sub-Arctic fjord (Godthabsfjord) in contact with the Greenland Ice Sheet. J. Geophys. Res., 116(C1), C01013 (dio:10.1029/2010JC00652) .
25. Nettles M and 12 others (2008) Step-wise changes in glacier flow speed coincide with calving and glacial earthquakes at Helheim Glacier, Greenland. Geophys. Res. Lett., 35(24), L24503 (dio:10.1029/2008GL036127).
26. Nick FM, Van der Veen CJ, Vieli A and Benn DI (2010) A physically based calving model applied to marine outlet glaciers and implications for the glacier dynamics. J. Glaciol., 56(199), 781- 794 (dio:10.3189/002214310794457344).
27. O'Neel S, Marshall HP, McNamara DE and Pfeffer WT (2007) Seismic detection and analysis of icequakes at Columbia Glacier, Alaska. J. Geophys. Res., 112(F3), F03S23 (dio:10.1029/2006JF000595).
28. Price SF, Payne AJ, Catania GA and Neumann TA (2008) Seasonal acceleration of inland ice via longitudinal coupling to marginal ice. J. Glaciol., 54(185), 213-219 (dio:10.3189/002214308784886117).
29. Reeh N, Thomsen HH, Higgins AK and Weidick A (2001) Sea ice and the stability of north and northeast Greenland floating glaciers. Ann. Glaciol., 33, 474-480 (dio:10.3189/172756401781818554).
30. Rignot E and MacAyeal DR (1998) Ice-shelf dynamics near the front of the Filchner-Ronne Ice Shelf, Antarctica, revealed by SAR interferometry. J. Glaciol., 44(147), 405-418.
31. Röthlisberger H (1972) Water pressure in intra- and subglacial channels. J. Glaciol., 11(62), 177-203.
32. Serreze MC, Holland MM and Stroeve J (2007) Perspectives on the Arctic's shrinking sea-ice cover. Science, 315(5818), 1533-1536 (dio:10.1126/science. 1139426).
33. Straneo F and 7 others (2010) Rapid circulation of warm subtropical waters in a major glacial fjord in East Greenland. Nature Geosci., 3(33), 182-186 (dio:10.1038/ngeo764).
34. Tsai VC, Rice JR and Fahnestock M (2008) Possible mechanisms for glacial earthquakes. J. Geophys. Res., 113(F3), F03014 (dio:10.1029/2007JF000944).
35. Van der Veen CJ, Plummer JC and Stearns LA (2011) Controls on the recent speed-up of Jakobshavn Isbræ, West Greenland. J. Glaciol., 57(204), 770-782 (dio:10.3189/002214311797409776).
36. Walter F, O'Neel S, McNamara DE, Pfeffer T, Bassis J and Fricker HA (2010) Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska. Geophys. Res. Lett., 37(15), L15501 (dio:10.1029/2010GL043201) .
37. Walter JI, Brodsky EE, Tulaczyk S, Schwartz SY and Pettersson R (2011) Transient slip events from near-field seismic and geodetic data on a glacier fault, Whillans Ice Plain, West Antarctica. J. Geophys. Res., 116(F1), F01021 (dio:10.1029/2010JF001754).
38. Walters RA (1989) Small-amplitude, short-period variations in the speed of a tide-water glacier in south-central Alaska, U.S.A. Ann. Glaciol., 12, 187-191.
39. Walters RA and Dunlap WW (1987) Analysis of time series of glacier speed: Columbia Glacier, Alaska. J. Geophys. Res., 92(B9), 8969-8975.
40. Weidick A (1995) Greenland, with a section on Landsat images of Greenland. In Williams RS, Jr and Ferrigno JG eds. Satellite image atlas of glaciers of the world. US Geological Survey, Washington, DC, C1-C105 (USGS Professional Paper 1386-C).
41. West ME, Larsen CF, Truffer M, O'Neel S and LeBlanc L (2010) Glacier microseismicity. Geology, 38(4), 319-322 (dio:10.1130/G30606.1).
42. Wiens DA, Anandakrishnan S, Winberry JP and King MA (2008) Simultaneous teleseismic and geodetic observations of the stick-slip motion of an Antarctic ice stream. Nature, 453(7196), 770-774 (dio:10.1038/nature06990).