Articles | Volume 19, issue 5
https://doi.org/10.5194/tc-19-1775-2025
https://doi.org/10.5194/tc-19-1775-2025
Research article
 | 
08 May 2025
Research article |  | 08 May 2025

Disentangling the oceanic drivers behind the post-2000 retreat of Sermeq Kujalleq, Greenland (Jakobshavn Isbræ)

Ziad Rashed, Alexander A. Robel, and Hélène Seroussi

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Cited articles

Amaral, T., Bartholomaus, T. C., and Enderlin, E. M.: Evaluation of iceberg calving models against observations from Greenland outlet glaciers, J. Geophys. Res.-Earth Surf., 125, e2019JF005444, https://doi.org/10.1029/2019JF005444, 2020. a, b
Amundson, J. M. and Burton, J.: Quasi-static granular flow of ice mélange, J. Geophys. Res.-Earth Surf., 123, 2243–2257, 2018. a
Amundson, J. M., Fahnestock, M., Truffer, M., Brown, J., Lüthi, M. P., and Motyka, R. J.: Ice mélange dynamics and implications for terminus stability, Jakobshavn Isbræ, Greenland, J. Geophys. Res.-Earth Surf., 115, F01005, https://doi.org/10.1029/2009JF001405, 2010. a
Amundson, J. M., Robel, A. A., Burton, J. C., and Nissanka, K.: A quasi-one-dimensional ice mélange flow model based on continuum descriptions of granular materials, The Cryosphere, 19, 19–35, https://doi.org/10.5194/tc-19-19-2025, 2025. a
Benn, D. I., Warren, C. R., and Mottram, R. H.: Calving processes and the dynamics of calving glaciers, Earth-Sci. Rev., 82, 143–179, https://doi.org/10.1016/j.earscirev.2007.02.002, 2007. a
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Short summary
Sermeq Kujalleq, Greenland's largest glacier, has significantly retreated since the late 1990s in response to warming ocean temperatures. Using a large-ensemble approach, our simulations show that the retreat is mainly initiated by the arrival of warm water but sustained and accelerated by the glacier's position over deeper bed troughs and vigorous calving. We highlight the need for models of ice mélange to project glacier behavior under rapid calving regimes.
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