Articles | Volume 18, issue 3
https://doi.org/10.5194/tc-18-977-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-18-977-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Mar 2024
Research article |
| 04 Mar 2024
| 04 Mar 2024
The effect of landfast sea ice buttressing on ice dynamic speedup in the Larsen B embayment, Antarctica
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Anna E. Hogg
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Stephen L. Cornford
School of Geographical Sciences, University of Bristol, Bristol, United Kingdom
Benjamin J. Wallis
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Benjamin J. Davison
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Heather L. Selley
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Ross A. W. Slater
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Elise K. Lie
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Livia Jakob
Earthwave Ltd, Edinburgh, Edinburgh, United Kingdom
Andrew Ridout
Department of Earth Sciences, University College London, London, United Kingdom
Noel Gourmelen
Earthwave Ltd, Edinburgh, Edinburgh, United Kingdom
School of GeoSciences, University of Edinburgh, Edinburgh, United Kingdom
Bryony I. D. Freer
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
British Antarctic Survey, Cambridge, United Kingdom
Sally F. Wilson
School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Andrew Shepherd
Department of Geography and Environmental Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
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Cited
9 citations as recorded by crossref.
- Antarctica in 2025: Drivers of deep uncertainty in projected ice loss H. Fricker et al. https://doi.org/10.1126/science.adt9619
- Mass changes of the Antarctic Peninsula ice sheet and peripheral glaciers, 2007–2021 M. Bernat et al. https://doi.org/10.5194/tc-20-3025-2026
- Quantifying the buttressing contribution of landfast sea ice and melange to Crane Glacier, Antarctic Peninsula R. Parsons et al. https://doi.org/10.5194/tc-18-5789-2024
- Antarctic Ice Sheet grounding line discharge from 1996–2024 B. Davison et al. https://doi.org/10.5194/essd-17-3259-2025
- Calving front positions for 42 key glaciers of the Antarctic Peninsula Ice Sheet: a sub-seasonal record from 2013 to 2023 based on deep-learning application to Landsat multi-spectral imagery E. Loebel et al. https://doi.org/10.5194/essd-17-65-2025
- Change in grounding line location on the Antarctic Peninsula measured using a tidal motion offset correlation method B. Wallis et al. https://doi.org/10.5194/tc-18-4723-2024
- Decadal glacier flow acceleration caused by upper ocean warming in the Antarctic Peninsula Y. Kang et al. https://doi.org/10.1016/j.jag.2026.105268
- Record grounded glacier retreat caused by an ice plain calving process N. Ochwat et al. https://doi.org/10.1038/s41561-025-01802-4
- Satellite-observed acceleration of glacier velocity on the Antarctic Peninsula in response to climate warming Y. Kang et al. https://doi.org/10.1016/j.jag.2025.105035
9 citations as recorded by crossref.
- Antarctica in 2025: Drivers of deep uncertainty in projected ice loss H. Fricker et al. https://doi.org/10.1126/science.adt9619
- Mass changes of the Antarctic Peninsula ice sheet and peripheral glaciers, 2007–2021 M. Bernat et al. https://doi.org/10.5194/tc-20-3025-2026
- Quantifying the buttressing contribution of landfast sea ice and melange to Crane Glacier, Antarctic Peninsula R. Parsons et al. https://doi.org/10.5194/tc-18-5789-2024
- Antarctic Ice Sheet grounding line discharge from 1996–2024 B. Davison et al. https://doi.org/10.5194/essd-17-3259-2025
- Calving front positions for 42 key glaciers of the Antarctic Peninsula Ice Sheet: a sub-seasonal record from 2013 to 2023 based on deep-learning application to Landsat multi-spectral imagery E. Loebel et al. https://doi.org/10.5194/essd-17-65-2025
- Change in grounding line location on the Antarctic Peninsula measured using a tidal motion offset correlation method B. Wallis et al. https://doi.org/10.5194/tc-18-4723-2024
- Decadal glacier flow acceleration caused by upper ocean warming in the Antarctic Peninsula Y. Kang et al. https://doi.org/10.1016/j.jag.2026.105268
- Record grounded glacier retreat caused by an ice plain calving process N. Ochwat et al. https://doi.org/10.1038/s41561-025-01802-4
- Satellite-observed acceleration of glacier velocity on the Antarctic Peninsula in response to climate warming Y. Kang et al. https://doi.org/10.1016/j.jag.2025.105035
Saved (final revised paper)
Latest update: 19 Jul 2026
Short summary
Here, we use satellite observations and an ice flow model to quantify the impact of sea ice buttressing on ice streams on the Antarctic Peninsula. The evacuation of 11-year-old landfast sea ice in the Larsen B embayment on the East Antarctic Peninsula in January 2022 was closely followed by major changes in the calving behaviour and acceleration (30 %) of the ocean-terminating glaciers. Our results show that sea ice buttressing had a negligible direct role in the observed dynamic changes.
Here, we use satellite observations and an ice flow model to quantify the impact of sea ice...
