New Last Glacial Maximum ice thickness constraints for the Weddell Sea Embayment, Antarctica

Nichols, Keir A.; Goehring, Brent M.; Balco, Greg; Johnson, Joanne S.; Hein, Andrew S.; Todd, Claire

doi:https://doi.org/10.5194/tc-13-2935-2019

Articles | Volume 13, issue 11

https://doi.org/10.5194/tc-13-2935-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-13-2935-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 11

Research article

| Highlight paper

|

08 Nov 2019

Research article | Highlight paper |

| 08 Nov 2019

New Last Glacial Maximum ice thickness constraints for the Weddell Sea Embayment, Antarctica

Keir A. Nichols, Brent M. Goehring, Greg Balco, Joanne S. Johnson, Andrew S. Hein, and Claire Todd

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Final revised paper (published on 08 Nov 2019)
Supplement to the final revised paper
Preprint (discussion started on 14 May 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: 'Review of ‘New Last Glacial Maximum Ice Thickness constraints for the Weddell Sea sector, Antarctica’ by K. A. Nichols et al.', Anonymous Referee #1, 07 Jun 2019
- AC1: 'Response to Reviewer 1', Keir Nichols, 02 Aug 2019
RC2: 'Review', Jane L. Andersen, 07 Jun 2019
- AC2: 'Response to Reviewer 2', Keir Nichols, 02 Aug 2019

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (04 Sep 2019) by Arjen Stroeven

AR by Keir Nichols on behalf of the Authors (12 Sep 2019) Author's response Manuscript

ED: Publish as is (02 Oct 2019) by Arjen Stroeven

AR by Keir Nichols on behalf of the Authors (07 Oct 2019) Manuscript

Short summary

We studied the history of ice masses at three locations in the Weddell Sea Embayment, Antarctica. We measured rare isotopes in material sourced from mountains overlooking the Slessor Glacier, Foundation Ice Stream, and smaller glaciers on the Lassiter Coast. We show that ice masses were between 385 and 800 m thicker during the last glacial cycle than they are at present. The ice masses were both hundreds of metres thicker and remained thicker closer to the present than was previously thought.