Water exchange between the continental shelf and the cavity beneath Nioghalvfjerdsbræ (79 North Glacier)

Geophysical Research Letters

Volumn 42, Issue 18, 2015, Pages 7648-7654

  Wilson, N J ^a,b   Straneo, F ^b  

^a MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^b WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

Author keywords

79North; circulation; ice tongue; ice ocean; NEGIS; Nioghalvfjerdsfjorden

Indexed keywords

BOILER CIRCULATION; MELTING;

79NORTH; CONTINENTAL SHELVES; INTERMEDIATE WATERS; NEGIS; NIOGHALVFJERDSFJORDEN; OVERTURNING CIRCULATION; WATER EXCHANGE; WATER PROPERTIES;

ICE;

BATHYMETRY; CONTINENTAL SHELF; GLACIER MASS BALANCE; ICE-OCEAN INTERACTION; INTERMEDIATE WATER; MELTING; TIMESCALE; WATER EXCHANGE;

ARCTIC; GREENLAND; NIOGHALVFJERDSFJORDEN GLACIER;

EID: 84945237343     PISSN: 00948276     EISSN: 19448007     Source Type: Journal    
DOI: 10.1002/2015GL064944     Document Type: Article

References (28)

1. Bamber, J., et al., (2013), A new bed elevation dataset for Greenland, Cryosphere, 7 (2), 499-510.
2. Bourke, R. H., J. L. Newton, R. G. Paquette, and, M. D. Tunnicliffe, (1987), Circulation and water masses of the East Greenland Shelf, J. Geophys. Res., 92 (C7), 6729-6740.
3. Budéus, G., and, W. Schneider, (1995), On the hydrography of the Northeast Water Polynya, J. Geophys. Res., 100 (C3), 4287-4299.
4. Budéus, G., W. Schneider, and, G. Kattner, (1997), Distribution and exchange of water masses in the Northeast Water Polynya (Greenland Sea), J. Mar. Syst., 10 (1), 123-138.
5. Dupont, T. K., and, R. B. Alley, (2005), Assessment of the importance of ice-shelf buttressing to ice-sheet flow, Geophys. Res. Lett., 32, L04503, doi: 10.1029/2004GL022024.
6. Evans, J., C. Ó Cofaigh, J. A. Dowdeswell, and, P. Wadhams, (2009), Marine geophysical evidence for former expansion and flow of the Greenland ice sheet across the north-east Greenland continental shelf, J. Quat. Sci., 24 (3), 279-293.
7. Fahnestock, M., I. Joughin, T. Scambos, R. Kwok, W. Krabill, and, S. Gogineni, (2001), Ice-stream-related patterns of ice flow in the interior of northeast Greenland, J. Geophys. Res., 106 (D24), 34,035-34,045.
8. Holland, D. M., R. H. Thomas, B. De Young, M. H. Ribergaard, and, B. Lyberth, (2008), Acceleration of Jakobshavn Isbræ triggered by warm subsurface ocean waters, Nat. Geosci., 1, 659-664, doi: 10.1038/ngeo316.
9. Hughes, N. E., J. P. Wilkinson, and, P. Wadhams, (2011), Multi-satellite sensor analysis of fast-ice development in the Norske øer Ice Barrier, northeast Greenland, Ann. Glaciol., 52 (57), 151-160.
10. Jackson, R. H., F. Straneo, and, D. A. Sutherland, (2014), Externally forced fluctuations in ocean temperature at Greenland glaciers in non-summer months, Nat. Geosci., 7, 503-508, doi: 10.1038/ngeo2186.
11. Johnson, H. L., A. Münchow, K. K. Falkner, and, H. Melling, (2011), Ocean circulation and properties in Petermann Fjord, Greenland, J. Geophys. Res., 116, C01003, doi: 10.1029/2010JC006519.
12. Johnson, M., and, H. J. Niebauer, (1995), The 1992 summer circulation in the Northeast Water Polynya from acoustic Doppler current profiler measurements, J. Geophys. Res., 100 (C3), 4301-4307.
13. Khan, S. A., et al., (2014), Sustained mass loss of the northeast Greenland ice sheet triggered by regional warming, Nat. Clim. Change, 4, 292-299.
14. Mayer, C., N. Reeh, F. Jung-Rothenhäusler, P. Huybrechts, and, H. Oerter, (2000), The subglacial cavity and implied dynamics under Nioghalvfjerdsfjorden Glacier, NE-Greenland, Geophys. Res. Lett., 27 (15), 2289-2292, doi: 10.1029/2000GL011514.
15. Motyka, R. J., L. Hunter, K. A. Echelmeyer, and, C. Connor, (2003), Submarine melting at the terminus of a temperate tidewater glacier, LeConte Glacier, Alaska, USA, Ann. Glaciol., 36 (1), 57-65.
16. Motyka, R. J., M. Truffer, M. Fahnestock, J. Mortensen, S. Rysgaard, and, I. Howat, (2011), Submarine melting of the 1985 Jakobshavn Isbræ floating tongue and the triggering of the current retreat, J. Geophys. Res., 116, F01007, doi: 10.1029/2009JF001632.
17. Reeh, N., C. Mayer, H. Miller, H. H. Thomsen, and, A. Weidick, (1999), Present and past climate control on fjord glaciations in Greenland: Implications for IRD-deposition in the sea, Geophys. Res. Lett., 26 (8), 1039-1042.
18. Reeh, N., H. H. Thomsen, A. K. Higgins, and, A. Weidick, (2001), Sea ice and the stability of north and northeast Greenland floating glaciers, Ann. Glaciol., 33, 474-480.
19. Rignot, E., and, P. Kanagaratnam, (2006), Changes in the velocity structure of the Greenland ice sheet, Science, 311 (5763), 986-990.
20. Rignot, E., G. Casassa, P. Gogineni, W. Krabill, A. Rivera, and, R. Thomas, (2004), Accelerated ice discharge from the Antarctic Peninsula following the collapse of Larsen B ice shelf, Geophys. Res. Lett., 31, L18401, doi: 10.1029/2004GL020697.
21. Scambos, T. A., J. A. Bohlander, C. A. Shuman, and, P. Skvarca, (2004), Glacier acceleration and thinning after ice shelf collapse in the Larsen B embayment, Antarctica, Geophys. Res. Lett., 31, L18402, doi: 10.1029/2004GL020670.
22. Schneider, W., and, G. Budéus, (1995), On the generation of the Northeast Water Polynya, J. Geophys. Res., 100 (C3), 4269-4286.
23. Seroussi, H., M. Morlighem, E. Rignot, E. Larour, D. Aubry, H. B. Dhia, and, S. S. Kristensen, (2011), Ice flux divergence anomalies on 79North Glacier, Greenland, Geophys. Res. Lett., 38, L09501, doi: 10.1029/2011GL047338.
24. Straneo, F., G. S. Hamilton, D. A. Sutherland, L. A. Stearns, F. Davidson, M. O. Hammill, G. B. Stenson, and, A. Rosing-Asvid, (2010), Rapid circulation of warm subtropical waters in a major glacial fjord in East Greenland, Nat. Geosci., 3 (3), 182-186.
25. Straneo, F., D. A. Sutherland, D. Holland, C. Gladish, G. S. Hamilton, H. L. Johnson, E. Rignot, Y. Xu, and, M. Koppes, (2012), Characteristics of ocean waters reaching Greenland's glaciers, Ann. Glaciol., 53 (60), 202-210.
26. Sutherland, D. A., F. Straneo, and, R. S. Pickart, (2014), Characteristics and dynamics of two major Greenland glacial fjords, J. Geophys. Res. Oceans, 119, 3767-3791, doi: 10.1002/2013JC009786.
27. Topp, R., and, M. Johnson, (1997), Winter intensification and water mass evolution from yearlong current meters in the Northeast Water Polynya, J. Mar. Syst., 10 (1), 157-173.
28. Weertman, J., (1974), Stability of the junction of an ice sheet and an ice shelf, J. Glaciol., 13, 3-11.