The Cryosphere
The Cryosphere
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Articles | Volume 19, issue 10
Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4303-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-4303-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 10
Research article
 | 
06 Oct 2025
Research article |  | 06 Oct 2025

Ice shelf calving due to shear stresses: observing the response of Brunt Ice Shelf and Halloween Crack to iceberg calving using ICESat-2 laser altimetry, satellite imagery, and ice flow models

Ashley Morris, Bradley P. Lipovsky, Catherine C. Walker, and Oliver J. Marsh

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Latest update: 31 Oct 2025
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Short summary
Floating ice shelves hold back Antarctic ice flow, but they are thinning and retreating. To help predict future mass loss we need a better understanding of the behavior of the rifts from which icebergs detach. We automate rift width measurement using ICESat-2 laser altimetry over the "Halloween Crack" on Brunt Ice Shelf. We find that rift opening stagnated following calving from an adjacent rift, which we investigate using an ice flow model.
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