Dynamics of primary productivity in the northeastern Bay of Bengal over the last 26&thinsp;000 years

Zhou, Xinquan; Duchamp-Alphonse, Stéphanie; Kageyama, Masa; Bassinot, Franck; Beaufort, Luc; Colin, Christophe

doi:https://doi.org/10.5194/cp-16-1969-2020

Articles | Volume 16, issue 5

https://doi.org/10.5194/cp-16-1969-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-16-1969-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 5

Research article

|

28 Oct 2020

Research article |

| 28 Oct 2020

Dynamics of primary productivity in the northeastern Bay of Bengal over the last 26 000 years

Xinquan Zhou, Stéphanie Duchamp-Alphonse, Masa Kageyama, Franck Bassinot, Luc Beaufort, and Christophe Colin

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Final revised paper (published on 28 Oct 2020)
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Preprint (discussion started on 06 Mar 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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RC1: 'Review of manuscript 'Dynamics of primary productivity in the northeastern Bay of Bengal over the last 26 000 years' by Zhou et al.', Anonymous Referee #1, 10 Apr 2020
- AC1: 'Interactive comment on "Dynamics of primary productivity in the northeastern Bay of Bengal over the last 26 000 years" by Zhou et al., 2020', Xinquan Zhou, 14 Jun 2020
RC2: 'Review of Zhou et al 2020', Anonymous Referee #2, 22 Apr 2020
- AC2: 'Interactive comment on "Dynamics of primary productivity in the northeastern Bay of Bengal over the last 26 000 years" by Zhou et al., 2020', Xinquan Zhou, 14 Jun 2020

Peer-review completion

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

ED: Reconsider after major revisions (19 Jun 2020) by Qiuzhen Yin

AR by Xinquan Zhou on behalf of the Authors (23 Sep 2020) Author's response Manuscript

ED: Publish as is (15 Oct 2020) by Qiuzhen Yin

AR by Xinquan Zhou on behalf of the Authors (16 Oct 2020)

Short summary

We provide a high-resolution primary productivity (PP) record of the northeastern Bay of Bengal over the last 26 000 years. Combined with climate model outputs, we show that PP over the glacial period is controlled by river input nutrients under low sea level conditions and after the Last Glacial Maximum is controlled by upper seawater salinity stratification related to monsoon precipitation. During the deglaciation the Atlantic meridional overturning circulation is the main forcing factor.