Bathymetry data reveal glaciers vulnerable to ice-ocean interaction in Uummannaq and Vaigat glacial fjords, west Greenland

Geophysical Research Letters

Volumn 43, Issue 6, 2016, Pages 2667-2674

  Rignot, E ^a,b   Fenty, I ^b   Xu, Y ^a   Cai, C ^a   Velicogna, I ^a,b   Cofaigh, C O ^c   Dowdeswell, J A ^d   Weinrebe, W ^e   Catania, G ^f   Duncan, D ^f  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^c DURHAM UNIVERSITY   (United Kingdom)

^d UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^e GEOMAR HELMHOLTZ CENTRE FOR OCEAN RESEARCH KIEL   (Germany)

^f UNIVERSITY OF TEXAS AT AUSTIN   (United States)

Author keywords

Bathymetry; Climate Change; Glaciology; Greenland; Ice Ocean interaction; Oceanography

Indexed keywords

BATHYMETRY; CLIMATE CHANGE; GLACIAL GEOLOGY; GLACIERS; OCEANOGRAPHY; RADIO SYSTEMS;

ATLANTIC WATER; CONTINENTAL SHELVES; GLACIAL EROSION; GLACIOLOGY; GREENLAND; ICE-OCEAN INTERACTIONS; MASS BALANCE; WEST GREENLAND;

ICE;

BATHYMETRY; ECHO SOUNDING; FJORD; GLACIAL EROSION; GLACIER DYNAMICS; GLACIER MASS BALANCE; ICE-OCEAN INTERACTION; OCEANOGRAPHY; SEAFLOOR; SNOWMELT;

ARCTIC; GREENLAND; GREENLAND ICE SHEET; UUMMANNAQ;

EID: 84978001461     PISSN: 00948276     EISSN: 19448007     Source Type: Journal    
DOI: 10.1002/2016GL067832     Document Type: Article

References (30)

1. Azetsu-Scott, K., and, F. C. Tan, (1997), Oxygen isotope studies from Iceland to an East Greenland Fjord: Behaviour of glacial meltwater plume, Mar. Chem., 56, 239-251.
2. Carbonnell, M., and, A. Bauer, (1968), Exploitation des couvertures photographiques aeriennes repetees du front des glaciers velant dans Disko Bugt et Umanak Fjord, juin-juillet 1964, Medd. Groenl., 173 (5), 78.
3. Caress, D. W., S. E. Spitzak, and, D. N. Chayes, (1996), Software for multibeam sonars, Sea Tech., 37, 54-57.
4. Chauche, N., A. Hubbard, J.-C. Gascard, J. E. Box, R. Bates, M. Koppes, A. Sole, P. Christoffersen, and, H. Patton, (2014), Ice-ocean interaction and calving front morphology at two west Greenland tidewater outlet glaciers, Cryosphere, 8, 1457-1468.
5. Christoffersen, P., R. I. Mugford, K. J. Heywood, I. Joughin, J. A. Dowdeswell, J. P. M. Syvitski, A. Luckman, and, T. J. Benham, (2011), Warming of waters in an East Greenland fjord prior to glacier retreat: Mechanisms and connection to large-scale atmospheric conditions, Cryosphere, 5 (3), 701-714.
6. Dowdeswell, J. A., K. A. Hogan, C. Ó Cofaigh, E. M. G. Fugelli, J. Evans, and, R. Noormets, (2014), Late Quaternary ice flow in a West Greenland fjord and cross-shelf trough system: Submarine landforms from Rink Isbrae to Uummannaq shelf and slope, Quat. Sci. Rev., 92, 292-309.
7. Ettema, J., M. R. van den Broeke, E. vanMeijgaard, W. J. van de Berg, J. L. Bamber, J. E. Box, and, R. C. Bales, (2009), Higher surface mass balance of the Greenland ice sheet revealed by high-resolution climate modeling, Geophys. Res. Lett., 36 (12), L12501, doi: 10.1029/2009GL038110.
8. Funder, S., K. Kjellerup, K. H. Kjaer, and, C. Ó Cofaigh, (2011), The Greenland ice sheet, the last 300,000 years: A review, in Quaternary Glaciations-Extent and Chronology. Part IV: A closer look. Developments in Quaternary Science, vol. 16, edited by, J. Ehlers, P. Gibbard, and, P. Hughes, pp. 699-713, Elsevier, Amsterdam.
9. Fried, M., G. Catania, T. Bartholomaus, D. Duncan, M. Davis, L. Stearns, J. Nash, E. Shroyer, and, D. Sutherland, (2015), Distributed subglacial discharge drives significant submarine melt at a Greenland tidewater glacier, Geophys. Res. Lett., 42, 9328-9336, doi: 10.1002/2015GL065806.
10. Gladish, C. V., D. M. Holland, A. Rosing-Asvid, J. Behrens, and, J. Boje, (2015), Ocean thermal forcing of Jakobshavn Glacier: Part I. Variability and renewal of Ilulissat icefjord waters, 2001-2013, J. Phys. Oceanogr., 45 (1), 3-32.
11. 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 (10), 659-664.
12. Jakobsson, M., et al., (2012), The International Bathymetric Chart of the Arctic Ocean (IBCAO) version 3.0, Geophys. Res. Lett., 39, L12609, doi: 10.1029/2012GL052219.
13. Moon, T., I. Joughin, B. Smith, and, I. Howat, (2012), 21st-century evolution of Greenland outlet glacier velocities, Science, 336, 576-578.
14. Morlighem, M., E. Rignot, J. Mouginot, H. Seroussi, and, E. Larour, (2014), Deeply incised submarine glacial valleys beneath the Greenland Ice Sheet, Nat. Geosci., 7, 418-422.
15. Mortensen, J., K. Lennert, J. Bendtsen, and, S. Rysgaard, (2011), Heat sources for glacial melt in a sub-Arctic fjord (Godthäbsfjord) in contact with the Greenland Ice Sheet, J. Geophys. Res., 116, C01013, doi: 10.1029/2010JC006528.
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. Murray, T., et al., (2010), Ocean regulation hypothesis for glacier dynamics in southeast Greenland and implications for ice sheet mass changes, J. Geophys. Res., 115, F03206, doi: 10.1029/2009JF001522.
18. Ó Cofaigh, C., et al., (2013), An extensive and dynamic ice sheet on the West Greenland shelf during the last glacial cycle, Geology, 41, 219-222.
19. Rignot, E., M. Koppes, and, I. Velicogna, (2010), Rapid submarine melting of the calving faces of west Greenland tidewater glaciers, Nat. Geosci., 3 (3), 187-191.
20. Rignot, E., I. Fenty, D. Menemenlis, and, Y. Xu, (2012), Spreading of warm ocean waters around Greenland as a possible cause for glacier acceleration, Ann. Glaciol., 53 (60), 257-266.
21. Rignot, E., and, J. Mouginot, (2012), Ice flow in Greenland for the international polar year 2008-2009, Geophys. Res. Lett., 39, L11501, doi: 10.1029/2012GL051634.
22. Rignot, E., I. Fenty, C. Kemp, X. Yun, and, C. Cai, (2015), Undercutting of Greenland marine-terminating glaciers in deep glacial fjords, Geophys. Res. Lett., 42, 5909-5917, doi: 10.1002/2015GL064236.
23. Schumann, K., D. Volker, and, W. R. Weinrebe, (2012), Acoustic mapping of the Ilulissat Ice Fjord mouth, West Greenland, Quat. Sci. Rev., 40, 78-88.
24. Schjoth, F., C. Andresen, F. Straneo, T. Murray, K. Sharrer, and, A. Korablev, (2012), Campaign to map the bathymetry of a major Greenland fjord, Eos Trans. AGU, 93 (14), 141-142.
25. Straneo, F., and, P. Heimbach, (2013), North Atlantic warming and the retreat of Greenland's outlet glaciers, Nature, 504, 36-43.
26. Straneo, F., S. H. Gordon, 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, East Greenland glacial fjord, Nat. Geosci., 3, 182-186.
27. Sutherland, D. A., F. Straneo, G. B. Stenson, F. J. M. Davidson, M. O. Hammill, and, A. Rosing-Asvid, (2013), Atlantic water variability on the SE Greenland continental shelf and its relationship to SST and bathymetry, J. Geophys. Res. Oceans, 118, 847-855, doi: 10.1029/2012JC008354.
28. Weinrebe, R. W., A. Kuijpers, I. Klaucke, and, M. Fink, (2009), Multibeam Bathymetry surveys in Fjords and coastal areas of West-Greenland, Eos Trans. AGU, 90 (52), Fall Meet. Suppl., Abstract OS21A-1152.
29. Weidick, A., (1968), Observations on some Holocene glacier fluctuations in West Greenland, Medd. Groenl., 165, 192.
30. Xu, Y., E. Rignot, I. Fenty, D. Menemenlis, and, M. Mar Flexas, (2013), Subaqueous melting of Store Glacier, West Greenland from three-dimensional, high-resolution numerical modeling and ocean observations, Geophys. Res. Lett., 40, 4648-4653, doi: 10.1002/grl.50825.