The Cryosphere
The Cryosphere
TC
Articles | Volume 9, issue 4
Articles | Volume 9, issue 4
https://doi.org/10.5194/tc-9-1427-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-9-1427-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 9, issue 4
Research article
 | 
04 Aug 2015
Research article |  | 04 Aug 2015

Assimilation of Antarctic velocity observations provides evidence for uncharted pinning points

J. J. Fürst, G. Durand, F. Gillet-Chaulet, N. Merino, L. Tavard, J. Mouginot, N. Gourmelen, and O. Gagliardini

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Short summary
We present a comprehensive high-resolution assimilation of Antarctic surface velocities with a flow model. The inferred velocities are in very good agreement with observations, even when compared to recent studies on individual shelves. This quality allows to identify a pattern in the velocity mismatch that points at pinning points not present in the input geometry. We identify seven potential pinning points around Antarctica, for now uncharted, providing prominent resistance to the ice flow.
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