Articles | Volume 24, issue 17
https://doi.org/10.5194/acp-24-9899-2024
https://doi.org/10.5194/acp-24-9899-2024
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

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Cited articles

Alicke, B., Hebestreit, K., Stutz, J., and Platt, U.: Iodine oxide in the marine boundary layer, Nature, 397, 572–573, https://doi.org/10.1038/17508, 1999. a
Allan, B. J., McFiggans, G., Plane, J. M. C., and Coe, H.: Observations of iodine monoxide in the remote marine boundary layer, J. Geophys. Res.-Atmos., 105, 14363–14369, https://doi.org/10.1029/1999JD901188, 2000. a
Amachi, S.: Microbial Contribution to Global Iodine Cycling: Volatilization, Accumulation, Reduction, Oxidation, and Sorption of Iodine, Microb. Environ., 23, 269–276, https://doi.org/10.1264/jsme2.ME08548, 2008. a
Atkinson, H. M., Huang, R.-J., Chance, R., Roscoe, H. K., Hughes, C., Davison, B., Schönhardt, A., Mahajan, A. S., Saiz-Lopez, A., Hoffmann, T., and Liss, P. S.: Iodine emissions from the sea ice of the Weddell Sea, Atmos. Chem. Phys., 12, 11229–11244, https://doi.org/10.5194/acp-12-11229-2012, 2012. a
Badia, A., Iglesias-Suarez, F., Fernandez, R. P., Cuevas, C. A., Kinnison, D. E., Lamarque, J.-F., Griffiths, P. T., Tarasick, D. W., Liu, J., and Saiz-Lopez, A.: The Role of Natural Halogens in Global Tropospheric Ozone Chemistry and Budget Under Different 21st Century Climate Scenarios, J. Geophys. Res.-Atmos., 126, e2021JD034859, https://doi.org/10.1029/2021JD034859, 2021. a
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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.
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