Relative timing of precipitation and ocean circulation changes in the western equatorial Atlantic over the last 45&thinsp;kyr

Waelbroeck, Claire; Pichat, Sylvain; Böhm, Evelyn; Lougheed, Bryan C.; Faranda, Davide; Vrac, Mathieu; Missiaen, Lise; Vazquez Riveiros, Natalia; Burckel, Pierre; Lippold, Jörg; Arz, Helge W.; Dokken, Trond; Thil, François; Dapoigny, Arnaud

doi:https://doi.org/10.5194/cp-14-1315-2018

Articles | Volume 14, issue 9

https://doi.org/10.5194/cp-14-1315-2018

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

https://doi.org/10.5194/cp-14-1315-2018

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

Articles | Volume 14, issue 9

Research article

|

18 Sep 2018

Research article |

| 18 Sep 2018

Relative timing of precipitation and ocean circulation changes in the western equatorial Atlantic over the last 45 kyr

Claire Waelbroeck, Sylvain Pichat, Evelyn Böhm, Bryan C. Lougheed, Davide Faranda, Mathieu Vrac, Lise Missiaen, Natalia Vazquez Riveiros, Pierre Burckel, Jörg Lippold, Helge W. Arz, Trond Dokken, François Thil, and Arnaud Dapoigny

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Final revised paper (published on 18 Sep 2018)
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Preprint (discussion started on 19 Mar 2018)
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Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Waelbroeck et al. Climate of the Past', Anonymous Referee #1, 20 Apr 2018
- AC1: 'Detailed response to Referee 1’s comments', C. Waelbroeck, 28 Jun 2018
RC2: 'cp-2018-22', Roger Francois, 15 May 2018
- AC2: 'Detailed response to Referee 2’s comments', C. Waelbroeck, 28 Jun 2018

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (20 Jul 2018) by Luc Beaufort

AR by Claire Waelbroeck on behalf of the Authors (01 Aug 2018) Author's response Manuscript

ED: Publish as is (27 Aug 2018) by Luc Beaufort

AR by Claire Waelbroeck on behalf of the Authors (04 Sep 2018) Author's response Manuscript

Short summary

Recording the precise timing and sequence of events is essential for understanding rapid climate changes and improving climate model predictive skills. Here, we precisely assess the relative timing between ocean and atmospheric changes, both recorded in the same deep-sea core over the last 45 kyr. We show that decreased mid-depth water mass transport in the western equatorial Atlantic preceded increased rainfall over the adjacent continent by 120 to 980 yr, depending on the type of climate event.