Recent acceleration of Denman Glacier (1972–2017), East Antarctica, driven by grounding line retreat and changes in ice tongue configuration

Miles, Bertie W. J.; Jordan, Jim R.; Stokes, Chris R.; Jamieson, Stewart S. R.; Gudmundsson, G. Hilmar; Jenkins, Adrian

doi:https://doi.org/10.5194/tc-15-663-2021

Articles | Volume 15, issue 2

https://doi.org/10.5194/tc-15-663-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-15-663-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 2

Research article

|

11 Feb 2021

Research article |

| 11 Feb 2021

Recent acceleration of Denman Glacier (1972–2017), East Antarctica, driven by grounding line retreat and changes in ice tongue configuration

Bertie W. J. Miles, Jim R. Jordan, Chris R. Stokes, Stewart S. R. Jamieson, G. Hilmar Gudmundsson, and Adrian Jenkins

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Final revised paper (published on 11 Feb 2021)
Supplement to the final revised paper
Preprint (discussion started on 06 Jul 2020)
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', Chad Greene, 30 Jul 2020
- AC1: 'Review response - Chad Greene', Bertie Miles, 21 Oct 2020
RC2: 'Manuscript review report', Anonymous Referee #2, 02 Aug 2020
- AC2: 'Review response - Reviewer 2', Bertie Miles, 21 Oct 2020
RC3: 'Comments to "Recent acceleration of Denman Glacier (1972-2017), East Antarctica, driven by grounding line retreat and changes in ice tongue configuration." by Miles et al.', Anonymous Referee #3, 22 Sep 2020
- AC3: 'Review response - Reviewer 3', Bertie Miles, 21 Oct 2020

Peer-review completion

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

ED: Publish subject to revisions (further review by editor and referees) (06 Nov 2020) by Bert Wouters

AR by Bertie Miles on behalf of the Authors (09 Nov 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (09 Nov 2020) by Bert Wouters

RR by Anonymous Referee #3 (24 Nov 2020)

RR by Anonymous Referee #2 (24 Nov 2020)

ED: Publish as is (10 Dec 2020) by Bert Wouters

Short summary

We provide a historical overview of changes in Denman Glacier's flow speed, structure and calving events since the 1960s. Based on these observations, we perform a series of numerical modelling experiments to determine the likely cause of Denman's acceleration since the 1970s. We show that grounding line retreat, ice shelf thinning and the detachment of Denman's ice tongue from a pinning point are the most likely causes of the observed acceleration.