Articles | Volume 19, issue 12
Biogeosciences, 19, 2969–2988, 2022
https://doi.org/10.5194/bg-19-2969-2022
Biogeosciences, 19, 2969–2988, 2022
https://doi.org/10.5194/bg-19-2969-2022
Research article
21 Jun 2022
Research article | 21 Jun 2022

Wintertime process study of the North Brazil Current rings reveals the region as a larger sink for CO2 than expected

Léa Olivier et al.

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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 bg-2021-269', Anonymous Referee #3, 28 Mar 2022
    • AC1: 'Reply on RC1', Léa Olivier, 27 Apr 2022
  • RC2: 'Comment on bg-2021-269', Peter Land, 07 Apr 2022
    • AC2: 'Reply on RC2', Léa Olivier, 27 Apr 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (08 May 2022) by Manmohan Sarin
AR by Léa Olivier on behalf of the Authors (11 May 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (16 May 2022) by Manmohan Sarin
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Short summary
We investigate the impact of the interactions between eddies and the Amazon River plume on the CO2 air–sea fluxes to better characterize the ocean carbon sink in winter 2020. The region is a strong CO2 sink, previously underestimated by a factor of 10 due to a lack of data and understanding of the processes responsible for the variability in ocean carbon parameters. The CO2 absorption is mainly driven by freshwater from the Amazon entrained by eddies and by the winter seasonal cooling.
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