Articles | Volume 17, issue 2
Clim. Past, 17, 753–774, 2021
https://doi.org/10.5194/cp-17-753-2021
Clim. Past, 17, 753–774, 2021
https://doi.org/10.5194/cp-17-753-2021

Research article 06 Apr 2021

Research article | 06 Apr 2021

Evaluating the biological pump efficiency of the Last Glacial Maximum ocean using δ13C

Anne L. Morée et al.

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (19 May 2020) by Laurie Menviel
AR by Anne Morée on behalf of the Authors (12 Dec 2020)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (14 Dec 2020) by Laurie Menviel
RR by Anonymous Referee #1 (08 Jan 2021)
RR by Anonymous Referee #2 (14 Jan 2021)
ED: Publish subject to minor revisions (review by editor) (17 Jan 2021) by Laurie Menviel
AR by Anne Morée on behalf of the Authors (12 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (14 Feb 2021) by Laurie Menviel
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Short summary
This modeling study of the Last Glacial Maximum (LGM, ~ 21 000 years ago) ocean explores the biological and physical changes in the ocean needed to satisfy marine proxy records, with a focus on the carbon isotope 13C. We estimate that the LGM ocean may have been up to twice as efficient at sequestering carbon and nutrients at depth as compared to preindustrial times. Our work shows that both circulation and biogeochemical changes must have occurred between the LGM and preindustrial times.