The Cryosphere
The Cryosphere
TC
Articles | Volume 20, issue 6
Articles | Volume 20, issue 6
https://doi.org/10.5194/tc-20-3683-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-3683-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 6
Research article
 | 
30 Jun 2026
Research article |  | 30 Jun 2026

Wintertime evolution of landfast ice stability in Alaska from InSAR

Andrew Einhorn and Andrew Mahoney

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Short summary
Landfast ice along the Alaskan Arctic coast is vital for winter travel, yet current remote sensing only maps its extent, not safety. Using InSAR, we distinguish landfast from pack ice and classify stability via a new metric, apparent strain. We quantitatively defined three classes: bottomfast, stabilized, and nonstabilized which correspond to the stability of the landfast ice. Apparent strain reveals an increase in stability throughout the winter months.
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