Evidence for increased expression of the Amundsen Sea Low over the South Atlantic during the late Holocene

Thomas, Zoë A.; Jones, Richard T.; Fogwill, Chris J.; Hatton, Jackie; Williams, Alan N.; Hogg, Alan; Mooney, Scott; Jones, Philip; Lister, David; Mayewski, Paul; Turney, Chris S. M.

doi:https://doi.org/10.5194/cp-14-1727-2018

Articles | Volume 14, issue 11

https://doi.org/10.5194/cp-14-1727-2018

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

https://doi.org/10.5194/cp-14-1727-2018

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

Articles | Volume 14, issue 11

Research article

|

13 Nov 2018

Research article |

| 13 Nov 2018

Evidence for increased expression of the Amundsen Sea Low over the South Atlantic during the late Holocene

Zoë A. Thomas, Richard T. Jones, Chris J. Fogwill, Jackie Hatton, Alan N. Williams, Alan Hogg, Scott Mooney, Philip Jones, David Lister, Paul Mayewski, and Chris S. M. Turney

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Final revised paper (published on 13 Nov 2018)
Preprint (discussion started on 01 Mar 2018)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'cp-2018-11', Anonymous Referee #1, 20 Apr 2018
- AC1: 'Response to Reviewer 1', Zoe Thomas, 03 Oct 2018
RC2: 'Review', Anonymous Referee #2, 26 Sep 2018
- AC2: 'Response to Review 2', Zoe Thomas, 03 Oct 2018

Peer-review completion

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

ED: Publish subject to technical corrections (08 Oct 2018) by Dominik Fleitmann

AR by Zoe Thomas on behalf of the Authors (16 Oct 2018) Author's response Manuscript

Short summary

We report a high-resolution study of a 5000-year-long peat record from the Falkland Islands. This area sensitive to the dynamics of the Amundsen Sea Low, which plays a major role in modulating the Southern Ocean climate. We find wetter, colder conditions between 5.0 and 2.5 ka due to enhanced southerly airflow, with the establishment of drier and warmer conditions from 2.5 ka to present. This implies more westerly airflow and the increased projection of the ASL onto the South Atlantic.