Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4125-2025
https://doi.org/10.5194/tc-19-4125-2025
Research article
 | 
01 Oct 2025
Research article |  | 01 Oct 2025

Age, thinning and spatial origin of the Beyond EPICA ice from a 2.5D ice flow model

Ailsa Chung, Frédéric Parrenin, Robert Mulvaney, Luca Vittuari, Massimo Frezzotti, Antonio Zanutta, David A. Lilien, Marie G. P. Cavitte, and Olaf Eisen

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-1650', Anonymous Referee #1, 06 Aug 2024
    • AC1: 'Reply on RC1', Ailsa Chung, 14 Mar 2025
  • RC2: 'Comment on egusphere-2024-1650', Anonymous Referee #2, 10 Sep 2024
    • AC2: 'Reply on RC2', Ailsa Chung, 14 Mar 2025

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (06 Apr 2025) by Lei Geng
AR by Ailsa Chung on behalf of the Authors (18 Apr 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (25 Apr 2025) by Lei Geng
RR by Anonymous Referee #3 (28 May 2025)
RR by Anonymous Referee #4 (29 May 2025)
ED: Publish subject to minor revisions (review by editor) (30 May 2025) by Lei Geng
AR by Ailsa Chung on behalf of the Authors (11 Jun 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (16 Jun 2025) by Lei Geng
AR by Ailsa Chung on behalf of the Authors (17 Jun 2025)  Author's response   Manuscript 
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Short summary
We applied an ice flow model to a flow line from the summit of Dome C to the Beyond EPICA ice core drill site on Little Dome C in Antarctica. Results show that the oldest ice at the drill site may be 1.12 Ma (at an age density of 20 kyr m-1) and originate from around 15 km upstream. We also discuss the nature of the 200–250 m thick basal layer which could be composed of stagnant ice, disturbed ice or even accreted ice (possibly containing debris).
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