Articles | Volume 17, issue 9
https://doi.org/10.5194/tc-17-3761-2023
© Author(s) 2023. 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-17-3761-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Sep 2023
Research article |
| 07 Sep 2023
| 07 Sep 2023
The stability of present-day Antarctic grounding lines – Part 2: Onset of irreversible retreat of Amundsen Sea glaciers under current climate on centennial timescales cannot be excluded
Ronja Reese
CORRESPONDING AUTHOR
Department of Geography and Environmental Sciences, Northumbria University, Newcastle, UK
Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, Potsdam, Germany
Julius Garbe
Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, Potsdam, Germany
Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany
Emily A. Hill
Department of Geography and Environmental Sciences, Northumbria University, Newcastle, UK
Benoît Urruty
Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, France
Kaitlin A. Naughten
British Antarctic Survey, Cambridge, UK
Olivier Gagliardini
Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, France
Gaël Durand
Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, France
Fabien Gillet-Chaulet
Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, France
G. Hilmar Gudmundsson
Department of Geography and Environmental Sciences, Northumbria University, Newcastle, UK
David Chandler
NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
Petra M. Langebroek
NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
Ricarda Winkelmann
Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, Potsdam, Germany
Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany
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Cited
9 citations as recorded by crossref.
- Short- and long-term variability of the Antarctic and Greenland ice sheets E. Hanna et al. 10.1038/s43017-023-00509-7
- Polarfuchs (Kolumne): Die Antarktis im Computer – wie funktionieren Computermodelle? L. Nicola 10.5194/polf-91-105-2023
- Sustained ocean cooling insufficient to reverse sea level rise from Antarctica A. Alevropoulos-Borrill et al. 10.1038/s43247-024-01297-8
- Recent irreversible retreat phase of Pine Island Glacier B. Reed et al. 10.1038/s41558-023-01887-y
- Geometric amplification and suppression of ice-shelf basal melt in West Antarctica J. De Rydt & K. Naughten 10.5194/tc-18-1863-2024
- Coupled ice–ocean interactions during future retreat of West Antarctic ice streams in the Amundsen Sea sector D. Bett et al. 10.5194/tc-18-2653-2024
- Limited Impact of Thwaites Ice Shelf on Future Ice Loss From Antarctica G. Gudmundsson et al. 10.1029/2023GL102880
- Climate intervention on a high-emissions pathway could delay but not prevent West Antarctic Ice Sheet demise J. Sutter et al. 10.1038/s41558-023-01738-w
- The stability of present-day Antarctic grounding lines – Part 1: No indication of marine ice sheet instability in the current geometry E. Hill et al. 10.5194/tc-17-3739-2023
6 citations as recorded by crossref.
- Short- and long-term variability of the Antarctic and Greenland ice sheets E. Hanna et al. 10.1038/s43017-023-00509-7
- Polarfuchs (Kolumne): Die Antarktis im Computer – wie funktionieren Computermodelle? L. Nicola 10.5194/polf-91-105-2023
- Sustained ocean cooling insufficient to reverse sea level rise from Antarctica A. Alevropoulos-Borrill et al. 10.1038/s43247-024-01297-8
- Recent irreversible retreat phase of Pine Island Glacier B. Reed et al. 10.1038/s41558-023-01887-y
- Geometric amplification and suppression of ice-shelf basal melt in West Antarctica J. De Rydt & K. Naughten 10.5194/tc-18-1863-2024
- Coupled ice–ocean interactions during future retreat of West Antarctic ice streams in the Amundsen Sea sector D. Bett et al. 10.5194/tc-18-2653-2024
3 citations as recorded by crossref.
- Limited Impact of Thwaites Ice Shelf on Future Ice Loss From Antarctica G. Gudmundsson et al. 10.1029/2023GL102880
- Climate intervention on a high-emissions pathway could delay but not prevent West Antarctic Ice Sheet demise J. Sutter et al. 10.1038/s41558-023-01738-w
- The stability of present-day Antarctic grounding lines – Part 1: No indication of marine ice sheet instability in the current geometry E. Hill et al. 10.5194/tc-17-3739-2023
Discussed (final revised paper)
Latest update: 17 Jul 2024
Short summary
We use an ice sheet model to test where current climate conditions in Antarctica might lead. We find that present-day ocean and atmosphere conditions might commit an irreversible collapse of parts of West Antarctica which evolves over centuries to millennia. Importantly, this collapse is not irreversible yet.
We use an ice sheet model to test where current climate conditions in Antarctica might lead. We...
