How non-equilibrium aerosol chemistry impacts particle acidity:  the GMXe AERosol CHEMistry (GMXe–AERCHEM, v1.0) sub-submodel of MESSy

Rosanka, Simon; Tost, Holger; Sander, Rolf; Jöckel, Patrick; Kerkweg, Astrid; Taraborrelli, Domenico

doi:https://doi.org/10.5194/gmd-17-2597-2024

Articles | Volume 17, issue 7

https://doi.org/10.5194/gmd-17-2597-2024

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

Special issue:

The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

https://doi.org/10.5194/gmd-17-2597-2024

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

Articles | Volume 17, issue 7

Development and technical paper

|

10 Apr 2024

Development and technical paper |

| 10 Apr 2024

How non-equilibrium aerosol chemistry impacts particle acidity: the GMXe AERosol CHEMistry (GMXe–AERCHEM, v1.0) sub-submodel of MESSy

Simon Rosanka, Holger Tost, Rolf Sander, Patrick Jöckel, Astrid Kerkweg, and Domenico Taraborrelli

Supplement

https://doi.org/10.5194/gmd-17-2597-2024-supplement

Data sets

Model simulation data used in "How non-equilibrium aerosol chemistry impacts particle acidity: the GMXe AERosol CHEMistry (GMXe-AERCHEM, v1.0) sub-submodel of MESSy" Simon Rosanka et al. https://doi.org/10.5281/zenodo.10059700

The Acidity of Atmospheric Particles and Clouds H. O. T. Pye https://doi.org/10.23719/1504059

Model code and software

The Modular Earth Submodel System The MESSy Consortium https://doi.org/10.5281/zenodo.8360186

The Modular Earth Submodel System (2.55.2_950-gmxe-aerchem) The MESSy Consortium https://doi.org/10.5281/zenodo.10036115

The Modular Earth Submodel System (2.55.2) The MESSy Consortium https://doi.org/10.5281/zenodo.8360276

Short summary

The capabilities of the Modular Earth Submodel System (MESSy) are extended to account for non-equilibrium aqueous-phase chemistry in the representation of deliquescent aerosols. When applying the new development in a global simulation, we find that MESSy's bias in modelling routinely observed reduced inorganic aerosol mass concentrations, especially in the United States. Furthermore, the representation of fine-aerosol pH is particularly improved in the marine boundary layer.