Past ice sheet–seabed interactions in the northeastern Weddell Sea embayment, Antarctica

Arndt, Jan Erik; Larter, Robert D.; Hillenbrand, Claus-Dieter; Sørli, Simon H.; Forwick, Matthias; Smith, James A.; Wacker, Lukas

doi:https://doi.org/10.5194/tc-14-2115-2020

Articles | Volume 14, issue 6

https://doi.org/10.5194/tc-14-2115-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-14-2115-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 6

Research article

|

30 Jun 2020

Research article |

| 30 Jun 2020

Past ice sheet–seabed interactions in the northeastern Weddell Sea embayment, Antarctica

Jan Erik Arndt, Robert D. Larter, Claus-Dieter Hillenbrand, Simon H. Sørli, Matthias Forwick, James A. Smith, and Lukas Wacker

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Final revised paper (published on 30 Jun 2020)
Supplement to the final revised paper
Preprint (discussion started on 16 Dec 2019)
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: 'Comments for authors:', Frank Nitsche, 16 Jan 2020
- AC1: 'Response to Review of Frank Nitsche', Jan Erik Arndt, 30 Mar 2020
RC2: 'referee comments', Chris Clark, 30 Jan 2020
- AC2: 'Response to review of Chris Clark', Jan Erik Arndt, 30 Mar 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (17 Apr 2020) by Ginny Catania

AR by Jan Erik Arndt on behalf of the Authors (22 Apr 2020) Author's response Manuscript

ED: Publish as is (18 May 2020) by Ginny Catania

AR by Jan Erik Arndt on behalf of the Authors (20 May 2020)

Short summary

We interpret landforms on the seabed and investigate sediment cores to improve our understanding of the past ice sheet development in this poorly understood part of Antarctica. Recent crack development of the Brunt ice shelf has raised concerns about its stability and the security of the British research station Halley. We describe ramp-shaped bedforms that likely represent ice shelf grounding and stabilization locations of the past that may reflect an analogue to the process going on now.