Articles | Volume 20, issue 18
Research article
15 Sep 2023
Research article |  | 15 Sep 2023

Alkalinity biases in CMIP6 Earth system models and implications for simulated CO2 drawdown via artificial alkalinity enhancement

Claudia Hinrichs, Peter Köhler, Christoph Völker, and Judith Hauck


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on bg-2023-26', Anonymous Referee #1, 02 Mar 2023
  • RC2: 'Comment on bg-2023-26', Alban Planchat, 06 Mar 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (31 May 2023) by Olivier Sulpis
AR by Claudia Hinrichs on behalf of the Authors (07 Jul 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (11 Jul 2023) by Olivier Sulpis
RR by Anonymous Referee #1 (28 Jul 2023)
ED: Publish as is (29 Jul 2023) by Olivier Sulpis
AR by Claudia Hinrichs on behalf of the Authors (03 Aug 2023)  Author's response   Manuscript 
Short summary
This study evaluated the alkalinity distribution in 14 climate models and found that most models underestimate alkalinity at the surface and overestimate it in the deeper ocean. It highlights the need for better understanding and quantification of processes driving alkalinity distribution and calcium carbonate dissolution and the importance of accounting for biases in model results when evaluating potential ocean alkalinity enhancement experiments.
Final-revised paper