Dynamic influence of pinning points on marine ice-sheet stability: a numerical study in Dronning Maud Land, East Antarctica

Favier, Lionel; Pattyn, Frank; Berger, Sophie; Drews, Reinhard

doi:https://doi.org/10.5194/tc-10-2623-2016

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.

https://doi.org/10.5194/tc-10-2623-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 6

Research article

|

09 Nov 2016

Research article |

| 09 Nov 2016

Dynamic influence of pinning points on marine ice-sheet stability: a numerical study in Dronning Maud Land, East Antarctica

Lionel Favier, Frank Pattyn, Sophie Berger, and Reinhard Drews

Download

Final revised paper (published on 09 Nov 2016)
Supplement to the final revised paper
Preprint (discussion started on 16 Jun 2016)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Review', Robert Arthern, 29 Jul 2016
RC2: 'Review of ``Dynamic influence of pinning points on marine ice-sheet stability''', Anonymous Referee #2, 19 Aug 2016
AC1: 'detailed response to the reviewers, modifications made on manuscript tc-2016-144 and on Supplementary Material', Lionel Favier, 23 Sep 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Lionel Favier on behalf of the Authors (26 Sep 2016) Manuscript

ED: Referee Nomination & Report Request started (15 Oct 2016) by G. Hilmar Gudmundsson

RR by Anonymous Referee #2 (18 Oct 2016)

RR by Robert Arthern (20 Oct 2016)

ED: Publish as is (22 Oct 2016) by G. Hilmar Gudmundsson

AR by Lionel Favier on behalf of the Authors (27 Oct 2016) Manuscript

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.