An improved estimate of inorganic iodine emissions from the ocean using a coupled surface microlayer box model

Pound, Ryan J.; Brown, Lucy V.; Evans, Mat J.; Carpenter, Lucy J.

doi:https://doi.org/10.5194/acp-24-9899-2024

Articles | Volume 24, issue 17

https://doi.org/10.5194/acp-24-9899-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-9899-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 17

Research article

|

09 Sep 2024

Research article |

| 09 Sep 2024

An improved estimate of inorganic iodine emissions from the ocean using a coupled surface microlayer box model

Ryan J. Pound, Lucy V. Brown, Mat J. Evans, and Lucy J. Carpenter

Data sets

Coupled Ocean Atmosphere Gas Exchange Model Sensitivity Analysis R. Pound et al. https://doi.org/10.15124/e377ffa4-ede9-490d-8a65-95f3b6d61137

Model code and software

The International GEOS-Chem User Community, geoschem/GCClassic: GEOS-Chem 14.1.1 GCC14.1.1 https://doi.org/10.5281/zenodo.7696651

Coupled Ocean-Atmosphere Gas Exchange Mode, V1.1.0 R. Pound et al. https://doi.org/10.5281/zenodo.10634463

Short summary

Iodine-mediated loss of ozone to the ocean surface and the subsequent emission of iodine species has a large effect on the troposphere. Here we combine recent experimental insights to develop a box model of the process, which we then parameterize and incorporate into the GEOS-Chem transport model. We find that these new insights have a small impact on the total emission of iodine but significantly change its distribution.