The Cryosphere
The Cryosphere
TC
Articles | Volume 19, issue 10
Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4471-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-4471-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 10
Research article
 | 
10 Oct 2025
Research article |  | 10 Oct 2025

Warm proglacial lake temperatures and thermal undercutting enhance rapid retreat of an Arctic glacier

Adrian Dye, Robert Bryant, Francesca Falcini, Joseph Mallalieu, Miles Dimbleby, Michael Beckwith, David Rippin, and Nina Kirchner

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Short summary
Thermal undercutting of the terminus has enhanced recent rapid retreat of an Arctic glacier. Water temperatures (~4 °C) at the ice front were warmer than previously reported and thermal undercutting was over several metres deep. This triggered phases of high calving activity, playing a substantial role in the rapid retreat of Kaskasapakte Glacier since 2012, with important implications for processes occurring at glacier-water contact points and implications for hydrology and ecology downstream.
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