Extension of the AIOMFAC model by iodine and carbonate species: applications for aerosol acidity and cloud droplet activation

Yin, Hang; Dou, Jing; Klein, Liviana; Krieger, Ulrich K.; Bain, Alison; Wallace, Brandon J.; Preston, Thomas C.; Zuend, Andreas

doi:https://doi.org/10.5194/acp-22-973-2022

Articles | Volume 22, issue 2

https://doi.org/10.5194/acp-22-973-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-973-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 2

Research article

|

21 Jan 2022

Research article |

| 21 Jan 2022

Extension of the AIOMFAC model by iodine and carbonate species: applications for aerosol acidity and cloud droplet activation

Hang Yin, Jing Dou, Liviana Klein, Ulrich K. Krieger, Alison Bain, Brandon J. Wallace, Thomas C. Preston, and Andreas Zuend

Supplement

https://doi.org/10.5194/acp-22-973-2022-supplement

Model code and software

andizuend/AIOMFAC: AIOMFAC-web v3.02 (v3.02) A. Zuend https://doi.org/10.5281/zenodo.5866756

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Short summary

Iodine and carbonate species are important components in marine and dust aerosols, respectively. We introduce an extended version of the AIOMFAC thermodynamic mixing model, which includes the ions I⁻, IO₃⁻, HCO₃⁻, CO₃²⁻, OH⁻, and CO_2(aq) as new species, and we discuss two methods for solving the carbonate dissociation equilibria numerically. We also present new experimental water activity data for aqueous iodide and iodate systems.