Articles | Volume 10, issue 1
https://doi.org/10.5194/tc-10-307-2016
© 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-10-307-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
05 Feb 2016
Research article |
| 05 Feb 2016
Brief communication: Impact of mesh resolution for MISMIP and MISMIP3d experiments using Elmer/Ice
O. Gagliardini
CORRESPONDING AUTHOR
Univ. Grenoble Alpes, LGGE, 38041 Grenoble, France
CNRS, LGGE, 38041 Grenoble, France
Institut Universitaire de France, Paris, France
J. Brondex
Univ. Grenoble Alpes, LGGE, 38041 Grenoble, France
CNRS, LGGE, 38041 Grenoble, France
F. Gillet-Chaulet
Univ. Grenoble Alpes, LGGE, 38041 Grenoble, France
CNRS, LGGE, 38041 Grenoble, France
L. Tavard
Univ. Grenoble Alpes, LGGE, 38041 Grenoble, France
CNRS, LGGE, 38041 Grenoble, France
V. Peyaud
Univ. Grenoble Alpes, LGGE, 38041 Grenoble, France
CNRS, LGGE, 38041 Grenoble, France
G. Durand
Univ. Grenoble Alpes, LGGE, 38041 Grenoble, France
CNRS, LGGE, 38041 Grenoble, France
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Ronja Reese, Julius Garbe, Emily A. Hill, Benoît Urruty, Kaitlin A. Naughten, Olivier Gagliardini, Gaël Durand, Fabien Gillet-Chaulet, G. Hilmar Gudmundsson, David Chandler, Petra M. Langebroek, and Ricarda Winkelmann
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Emily A. Hill, Benoît Urruty, Ronja Reese, Julius Garbe, Olivier Gagliardini, Gaël Durand, Fabien Gillet-Chaulet, G. Hilmar Gudmundsson, Ricarda Winkelmann, Mondher Chekki, David Chandler, and Petra M. Langebroek
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The grounding lines of the Antarctic Ice Sheet could enter phases of irreversible retreat or advance. We use three ice sheet models to show that the present-day locations of Antarctic grounding lines are reversible with respect to a small perturbation away from their current position. This indicates that present-day retreat of the grounding lines is not yet irreversible or self-enhancing.
Fanny Brun, Owen King, Marion Réveillet, Charles Amory, Anton Planchot, Etienne Berthier, Amaury Dehecq, Tobias Bolch, Kévin Fourteau, Julien Brondex, Marie Dumont, Christoph Mayer, Silvan Leinss, Romain Hugonnet, and Patrick Wagnon
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Anna Derkacheva, Fabien Gillet-Chaulet, Jeremie Mouginot, Eliot Jager, Nathan Maier, and Samuel Cook
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Cited articles
Drouet, A. S., Docquier, D., Durand, G., Hindmarsh, R., Pattyn, F., Gagliardini, O., and Zwinger, T.: Grounding
line transient response in marine ice sheet models, The Cryosphere, 7, 395–406, https://doi.org/10.5194/tc-7-395-2013, 2013.
Durand, G. and Pattyn, F.: Reducing uncertainties in projections of Antarctic ice mass loss, The Cryosphere, 9, 2043–2055, https://doi.org/10.5194/tc-9-2043-2015, 2015.
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Short summary
In this paper it is shown that the sensitivity to the mesh resolution is not
improved for a vanishing friction at the grounding line (GL). For a discontinuous friction at the GL, we further show that the results are moreover very sensitive to the way the friction is interpolated in the close vicinity of the GL. In the light of these new insights, new results for the MISMIP3d experiments obtained for higher resolutions than previously published are made available for future comparisons.
In this paper it is shown that the sensitivity to the mesh resolution is not
improved for a...
