Warming of the polar water layer in disko bay and potential impact on jakobshavn isbrae

Journal of Physical Oceanography

Volumn 43, Issue 12, 2013, Pages 2629-2640

  Myers, Paul G ^a   Ribergaard, Mads H ^b  

^a UNIVERSITY OF ALBERTA   (Canada)

^b DANISH METEOROLOGICAL INSTITUTE   (Denmark)

Author keywords

[No Author keywords available]

Indexed keywords

CIRCULATION CHANGES; HYDROGRAPHIC DATA; OCEAN WATER; POLAR WATERS; POTENTIAL IMPACTS; TIDEWATER GLACIERS; WATER LAYERS; WEST GREENLAND;

ENTHALPY;

SALINE WATER;

HYDROGRAPHY; ICE RETREAT; POLAR MOTION; TIDEWATER GLACIER; WARMING; WATER MASS;

ARCTIC; DISKO BAY; GREENLAND; JAKOBSHAVN ISBRAE;

EID: 84889578287     PISSN: 00223670     EISSN: 15200485     Source Type: Journal    
DOI: 10.1175/JPO-D-12-051.1     Document Type: Article

References (43)

1. Aksenov, Y., S. Bacon, A.C. Coward, and N.P. Holliday, 2010: Polar outflow from the Arctic Ocean:Ahigh-resolution model study. J. Mar. Syst., 83, 14-37.
2. Andresen, C.A., and Coauthors, 2012: Rapid response of Helheim Glacier in Greenland to climate variability over the past century. Nat. Geosci., 5, 37-41, doi:10.1038/ngeo1349.
3. Azetsu-Scott, K., B. Petrie, P. Yeats, and C. Lee, 2012: Composition and fluxes of freshwater throughDavis Strait usingmultiple chemical tracers. J. Geophys. Res., 117, C12011, doi:10.1029/ 2012JC008172.
4. Box, J., and Coauthors, 2006: Greenland Ice Sheet surface mass balance variability (1988-2004) from calibrated Polar MM5 output. J. Climate, 19, 2783-2800.
5. Brambilla, E., and L.D. Talley, 2008: Subpolar mode water in the northeastern Atlantic: 1. Averaged properties and mean circulation. J. Geophys. Res., 113, C04025, doi:10.1029/2006JC004062.
6. Buch, E., 2000: A monograph on the physical oceanography of the Greenland waters. DMI Scientific Tech. Rep. 00-12, 410 pp.
7. Church, J.A., and Coauthors, 2011: Revisiting the earth's sea-level and energy budgets from 1961 to 2008. Geophys. Res. Lett., 38, L18601, doi:10.1029/2011GL048794.
8. Curry, B., C.M. Lee, and B. Petrie, 2011: Volume, freshwater, and heat fluxes through Davis Strait, 2004/05. J. Phys. Oceanogr., 41, 429-436.
9. Fissel, D.B., D.D. Lemon, and J.R. Birch, 1982: Major features of the summer near-surface circulation of western Baffin Bay, 1978 and 1979. Arctic, 35, 180-200.
10. Fratantoni, P., and R. Pickart, 2007: The western North Atlantic shelfbreak current system in summer. J. Phys. Oceanogr., 37, 2509-2533.
11. Graversen, R.G., S. Drijfhout, W. Hazeleger, R. van der Wal, R. Bintanja, and M. Helsen, 2011: Greenland's contribution to global sea-level rise by the end of the 21st century. Climate Dyn., 37, 1427-1442, doi:10.1007/s00382-010-0918-8.
12. Hanna, E., and Coauthors, 2008: Increased runoff from melt from the Greenland Ice Sheet: A response to global warming. J. Climate, 21, 331-341.
13. Hansen, M.O., T.G. Nielsen, C.A. Stedmon, and P. Munk, 2012: Oceanographic regime shift during 1997 in Disko Bay, Western Greenland. Limnol. Oceanogr., 57, 634-644.
14. Holland, D.M., R.H. Thomas, B. de Young, M. Ribergaard, and B. Lyberth, 2008: Acceleration of Jakobshavn Isbrae triggered by warm subsurface ocean waters. Nat. Geosci., 1, 659-664.
15. Houssais, M., and C. Herbaut, 2011: Atmospheric forcing on the Canadian Arctic Archipelago freshwater outflow and implications for the Labrador Sea variability. J. Geophys. Res., 116, C00D02, doi:10.1029/2010JC006323.
16. Howat, I.M., B.E. Smith, I. Joughin, and T.A. Scambos, 2008: Rates of southeast Greenland ice volume loss from combined ICESat and ASTER observations. Geophys. Res. Lett., 35, L17505, doi:10.1029/2008GL034496.
17. Hu, A., G.A. Meehl, W. Han, and J. Yin, 2009: Transient response of theMOCand climate to potential melting of the Greenland Ice Sheet in the 21st century. Geophys. Res. Lett., 36, L10707, doi:10.1029/2009Gl037998.
18. Johnson, H.L., A. Munchow, K.K. Falkner, and H. Melling, 2011: Ocean circulation and properties in Petermann Fjord, Greenland. J. Geophys. Res., 116, C01003, doi:10.1029/ 2010JC006519.
19. Joughin, I., W. Abdalati, and M. Fahnestock, 2004: Large fluctuations in speed on Greenland's Jakobshavn Isbrae Glacier. Nature, 432, 608-610, doi:10.1038/nature03130.
20. Kliem, N., and D.A. Greenberg, 2003: Diagnostic simulations of the circulation in the Canadian Arctic Archipelago. Atmos.- Ocean, 41, 273-289.
21. Krabill, W., and Coauthors, 2004: Greenland Ice Sheet: Increased coastal thinning. Geophys. Res. Lett., 31, L24402, doi:10.1029/ 2004GL021533.
22. Lobb, J., A.J. Weaver, E.C. Carmack, and R.G. Ingram, 2003: Structure and mixing across an Arctic/Atlantic front in northern Baffin Bay. Geophys. Res. Lett., 30, 1833, doi:10.1029/ 2003GL017755.
23. McGeehan, T., and W. Maslowski, 2012: Evolution and control mechanisms of volume and freshwater export through the Canadian Arctic Archipelago in a high resolution pan-Arctic ice-ocean model. J. Geophys. Res., 117, C00D14, doi:10.1029/ 2011JC007261.
24. Mortensen, J., K. Lennert, J. Bendtsen, and S. Rysgaard, 2011: Heat sources for glacial melt in a sub-Arctic fjord (Godthabsfjord) in contact with the Greenland Ice Sheet. J. Geophys. Res., 116, C01013, doi:10.1029/2010JC006528.
25. Motyka, R.J., M. Truffer, M. Fahnstock, J. Mortensen, S. Rysgaard, and I. Howat, 2011: Submarine melting of the 1985 Jakobshavn Isbrae floating tongue and the triggering of the current retreat. J. Geophys. Res., 116, F01007, doi:10.1029/ 2009JF001632.
26. Myers, P.G., N. Kulan, and M.H. Ribergaard, 2007: Irminger water variability in the West Greenland Current. Geophys. Res. Lett., 34, L17601, doi:10.1029/2007GL030419.
27. Myers, P.G., N. Kulan, and M.H. Ribergaard, C. Donnelly, and M.H. Ribergaard, 2009: Structure and variability of the West Greenland Current in summer derived from 6 repeat standard sections. Prog. Oceanogr., 80, 93-112.
28. Penduff, T., B. Barnier, G. Madec, and J. Molines, 2005: On the use of current meter data to assess the realism of ocean model simulations. Ocean Modell., 11, 399-416.
29. Ribergaard, M.H., 2012: Oceanographic investigations off West Greenland 2011. NAFO Scientific Council Documents Tech. Rep. 12/002, 52 pp.
30. Rignot, E., and K. Steffen, 2008: Channelized bottom melting and stability of floating ice shelves. Geophys. Res. Lett., 35, L02503, doi:10.1029/2007GL031765.
31. Rignot, E., and K. Steffen, M. Koppes, and I. Velicogna, 2010: Rapid submarine melting of the calving faces of West Greenland glaciers. Nat. Geosci., 3, 187-191.
32. Rudels, B., 1986: The outflow of polar water through the Arctic Archipelago and the oceanographic conditions in Baffin Bay. Polar Res., 4, 161-180.
33. Rudels, B., 2011: Volume and freshwater transports through the Canadian Arctic Archipelago-Baffin Bay system. J. Geophys. Res., 116, C00D10, doi:10.1029/2011JC007019.
34. Schlitzer, R., cited 2007: Ocean data view. [Available online at http://odv.awi.de.]
35. 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.
36. Sloth, P., and E. Buch, 1984: On hydrography and water mass exchange of Disko Bay. ICES C.M. Doc. Tech. Rep. C:26, 17 pp.
37. Smith, R.S., and J.M. Gregory, 2009: A study of the sensitivity of ocean overturning circulation and climate and freshwater input in different regions of the North Atlantic. Geophys. Res. Lett., 36, L15701, doi:10.1029/2009GL038607.
38. Smith, W.H.F., and D.T. Sandwell, 1997: Global seafloor topography from satellite altimetry and ship depth soundings. Science, 277, 1957-1962.
39. Stouffer, R.J., and Coauthors, 2006: Investigating the causes of the response of the thermohaline circulation to past and future climate changes. J. Climate, 19, 1365-1387.
40. 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, 182- 186.
41. Tang, C., C. Ross, T. Yao, B. Petrie, B. DeTracey, and E. Dunlap, 2004: The circulation, water masses and circulation of Baffin Bay. Prog. Oceanogr., 63, 183-228.
42. Thierry, V., E. de Boisson, and H. Mercier, 2008: Interannual variability of the Subpolar Mode Water properties over the Reykjanes Ridge during 1990-2006. J. Geophys. Res., 113, C04016, doi:10.1029/2007JC004443.
43. van den Broeke, M., and Coauthors, 2010: Partitioning recent Greenland mass loss. Science, 326, 984-986.