An improved representation of aerosol in the ECMWF IFS-COMPO 49R1 through the integration of EQSAM4Climv12 – a first attempt at simulating aerosol acidity

Rémy, Samuel; Metzger, Swen; Huijnen, Vincent; Williams, Jason E.; Flemming, Johannes

doi:https://doi.org/10.5194/gmd-17-7539-2024

Articles | Volume 17, issue 21

https://doi.org/10.5194/gmd-17-7539-2024

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

https://doi.org/10.5194/gmd-17-7539-2024

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

Articles | Volume 17, issue 21

Model evaluation paper

|

30 Oct 2024

Model evaluation paper |

| 30 Oct 2024

An improved representation of aerosol in the ECMWF IFS-COMPO 49R1 through the integration of EQSAM4Climv12 – a first attempt at simulating aerosol acidity

Samuel Rémy, Swen Metzger, Vincent Huijnen, Jason E. Williams, and Johannes Flemming

Data sets

Simulation data of GMD-2023-3072 Samuel Rémy https://doi.org/10.5281/zenodo.10679832

Model code and software

The EQSAM Box Model (for eqsam4clim-v12) S. Metzger https://doi.org/10.5281/zenodo.10276178

Short summary

In this paper we describe the development of the future operational cycle 49R1 of the IFS-COMPO system, used for operational forecasts of atmospheric composition in the CAMS project, and focus on the implementation of the thermodynamical model EQSAM4Clim version 12. The implementation of EQSAM4Clim significantly improves the simulated secondary inorganic aerosol surface concentration. The new aerosol and precipitation acidity diagnostics showed good agreement against observational datasets.