Articles | Volume 11, issue 5
The Cryosphere, 11, 2189–2211, 2017
https://doi.org/10.5194/tc-11-2189-2017
The Cryosphere, 11, 2189–2211, 2017
https://doi.org/10.5194/tc-11-2189-2017

Research article 12 Sep 2017

Research article | 12 Sep 2017

Dynamic response of an Arctic epishelf lake to seasonal and long-term forcing: implications for ice shelf thickness

Andrew K. Hamilton et al.

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Cited articles

Antoniades, D., Francus, P., Pienitz, R., St-Onge, G., and Vincent, W. F.: Holocene dynamics of the Arctic's largest ice shelf, P. Natl. Acad. Sci. USA, 108, 18899–18904, https://doi.org/10.1073/pnas.1106378108, 2011.
Bormann, P. and Fritzsche, D.: The Schirmacher Oasis, Queen Maud Land, East Antarctica, and its surroundings, Justus Perthes Verlag, Gotha, Germany, 448 pp., 1995.
Braun, C.: The surface mass balance of the Ward Hunt Ice Shelf and Ward Hunt Ice Rise, Ellesmere Island, Nunavut, Canada, in: Arctic Ice Shelves and Ice Islands, edited by: Copland, L. and Mueller, D. R., Springer, Dordrecht, 149–183, https://doi.org/10.1007/978-94-024-1101-0_6, 2017.
Braun, C., Hardy, D. R., Bradley, R. S., and Sahanatien, V.: Surface mass balance of the Ward Hunt Ice Rise and Ward Hunt Ice Shelf, Ellesmere Island, Nunavut, Canada, J. Geophys. Res.-Atmos., 109, D22110, https://doi.org/10.1029/2004JD004560, 2004.
Burton, J. C., Amundson, J. M., Abbot, D. S., Boghosian, A., Cathles, L. M., Correa-Legisos, S., Darnell, K. N., Guttenberg, N., Holland, D. M., and MacAyeal, D. R.: Laboratory investigations of iceberg capsize dynamics, energy dissipation and tsunamigenesis, J. Geophys. Res.-Earth, 117, F01007, https://doi.org/10.1029/2011JF002055, 2012.
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Meltwater runoff trapped by an ice shelf can create a freshwater lake floating directly on seawater. We show that the depth of the freshwater–seawater interface varies substantially due to changes in meltwater inflow and drainage under the ice shelf. By accounting for seasonality, the interface depth can be used to monitor long-term changes in the thickness of ice shelves. We show that the Milne Ice Shelf, Ellesmere Island, was stable before 2004, after which time the ice shelf thinned rapidly.