Biogeosciences
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Articles | Volume 23, issue 20
Articles | Volume 23, issue 20
https://doi.org/10.5194/bg-23-7523-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-7523-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 20
Research article
 | 
26 Oct 2026
Research article |  | 26 Oct 2026

Impacts of water advection and CO2 exchange on the carbon dioxide removal potential of ocean alkalinity enhancement

Charly Andre Moras, Matias Saez Moreno, Peggy Bartsch, and Jens Hartmann

Data sets

Dataset on the effect of advection and CO2 ingassing on the dissolution of Ca(OH)2 and Mg(OH)2 in seawater and the formation of CaCO3 for ocean alkalinity enhancement. Charly A. Moras https://doi.org/10.5281/zenodo.23078831

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Short summary
Ocean alkalinity enhancement (OAE) is a method of choice to capture carbon dioxide. This research investigates the role of advection and CO2 invasion on OAE efficiency for a period of 6 months. Overall, alkalinity remained mostly stable due to carbon dioxide invasion and the derived gas-transfer velocities corresponded to open ocean wind speeds of ~3 m s-1. It highlights that hydrodynamics strongly influences the carbon capture efficiency of ocean alkalinity enhancement. 
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