Modelled subglacial floods and tunnel valleys control the life cycle    of transitory ice streams

Lelandais, Thomas; Ravier, Édouard; Pochat, Stéphane; Bourgeois, Olivier; Clark, Christopher; Mourgues, Régis; Strzerzynski, Pierre

doi:https://doi.org/10.5194/tc-12-2759-2018

Articles | Volume 12, issue 8

https://doi.org/10.5194/tc-12-2759-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-12-2759-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 8

Research article

|

27 Aug 2018

Research article |

| 27 Aug 2018

Modelled subglacial floods and tunnel valleys control the life cycle of transitory ice streams

Thomas Lelandais, Édouard Ravier, Stéphane Pochat, Olivier Bourgeois, Christopher Clark, Régis Mourgues, and Pierre Strzerzynski

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Final revised paper (published on 27 Aug 2018)
Supplement to the final revised paper
Preprint (discussion started on 08 May 2018)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'My review of Modelled subglacial floods and tunnel valleys control the lifecycle of transitory ice streams', Carrie Jennings, 01 Jun 2018
RC2: 'Peer Review', Anonymous Referee #2, 20 Jun 2018
AC1: 'Author comments - Answer to the referees', Thomas Lelandais, 12 Jul 2018

Peer-review completion

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

AR by Thomas Lelandais on behalf of the Authors (16 Jul 2018) Author's response

ED: Publish subject to minor revisions (review by editor) (30 Jul 2018) by Arjen Stroeven

AR by Anna Mirena Feist-Polner on behalf of the Authors (07 Aug 2018) Author's response Manuscript

ED: Publish as is (09 Aug 2018) by Arjen Stroeven

Short summary

Scattered observations suggest that subglacial meltwater routes drive ice stream dynamics and ice sheet stability. We use a new experimental approach to reconcile such observations into a coherent story connecting ice stream life cycles with subglacial hydrology and bed erosion. Results demonstrate that subglacial flooding, drainage reorganization, and valley development can control an ice stream lifespan, thus opening new perspectives on subglacial processes controlling ice sheet instabilities.