Articles | Volume 10, issue 6
https://doi.org/10.5194/tc-10-2623-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-10-2623-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Dynamic influence of pinning points on marine ice-sheet stability: a numerical study in Dronning Maud Land, East Antarctica
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
Frank Pattyn
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
Sophie Berger
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
Reinhard Drews
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
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- Hydroacoustic, Meteorologic and Seismic Observations of the 2016 Nansen Ice Shelf Calving Event and Iceberg Formation R. Dziak et al. 10.3389/feart.2019.00183
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Latest update: 20 Nov 2024
Short summary
We demonstrate the short-term unstable retreat of an East Antarctic outlet glacier triggered by imposed sub-ice-shelf melt, compliant with current values, using a state-of-the-art ice-sheet model. We show that pinning points – topographic highs in contact with the ice-shelf base – have a major impact on ice-sheet stability and timing of grounding-line retreat. The study therefore calls for improving our knowledge of sub-ice-shelf bathymetry in order to reduce uncertainties in future ice loss.
We demonstrate the short-term unstable retreat of an East Antarctic outlet glacier triggered by...