Changes in flow of Crosson and Dotson ice shelves, West Antarctica, in response to elevated melt

Lilien, David A.; Joughin, Ian; Smith, Benjamin; Shean, David E.

doi:https://doi.org/10.5194/tc-12-1415-2018

Articles | Volume 12, issue 4

https://doi.org/10.5194/tc-12-1415-2018

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

https://doi.org/10.5194/tc-12-1415-2018

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

Articles | Volume 12, issue 4

Research article

|

19 Apr 2018

Research article |

| 19 Apr 2018

Changes in flow of Crosson and Dotson ice shelves, West Antarctica, in response to elevated melt

David A. Lilien, Ian Joughin, Benjamin Smith, and David E. Shean

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Final revised paper (published on 19 Apr 2018)
Supplement to the final revised paper
Preprint (discussion started on 02 Jan 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: 'Referee comments', Anonymous Referee #1, 07 Feb 2018
- AC1: 'Clarification of comment', David Lilien, 09 Mar 2018
  - RC3: 'Clarification of comment', Anonymous Referee #1, 14 Mar 2018
    - AC2: 'Response to Reviewer 1', David Lilien, 21 Mar 2018
RC2: 'Review of "Elevated melt causes varied response of Crosson and Dotson Ice Shelves in West Antarctica" by D.A. Lilien, I. Joughin, B. Smith, and D.E. Shean.', Anonymous Referee #2, 09 Feb 2018
- AC3: 'Response to Reviewer 2', David Lilien, 21 Mar 2018

Peer-review completion

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

AR by David Lilien on behalf of the Authors (21 Mar 2018) Author's response Manuscript

ED: Publish as is (24 Mar 2018) by Michiel van den Broeke

AR by David Lilien on behalf of the Authors (26 Mar 2018)

Short summary

We used remotely sensed data and a numerical model to study the processes controlling the stability of two rapidly changing ice shelves in West Antarctica. Both these ice shelves have been losing mass since at least 1996, primarily as a result of ocean-forced melt. We find that this imbalance likely results from changes initiated around 1970 or earlier. Our results also show that the shelves’ differing speedup is controlled by the strength of their margins and their grounding-line positions.