The Cryosphere
The Cryosphere
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Articles | Volume 18, issue 9
Articles | Volume 18, issue 9
https://doi.org/10.5194/tc-18-4011-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-18-4011-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 9
Research article
 | 
05 Sep 2024
Research article |  | 05 Sep 2024

Hysteresis of idealized, instability-prone outlet glaciers in response to pinning-point buttressing variation

Johannes Feldmann, Anders Levermann, and Ricarda Winkelmann

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Short summary
Here we show in simplified simulations that the (ir)reversibility of the retreat of instability-prone, Antarctica-type glaciers can strongly depend on the depth of the bed depression they rest on. If it is sufficiently deep, then the destabilized glacier does not recover from its collapsed state. Our results suggest that glaciers resting on a wide and deep bed depression, such as Antarctica's Thwaites Glacier, are particularly susceptible to irreversible retreat. 
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