Advanced modeling of gas chemistry and aerosol dynamics  with SSH-aerosol v2.0

Sartelet, Karine; Wang, Zhizhao; Kim, Youngseob; Lannuque, Victor; Couvidat, Florian

doi:10.5194/gmd-19-389-2026

Articles | Volume 19, issue 1

https://doi.org/10.5194/gmd-19-389-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-19-389-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 1

Model description paper

|

14 Jan 2026

Model description paper |

| 14 Jan 2026

Advanced modeling of gas chemistry and aerosol dynamics with SSH-aerosol v2.0

Karine Sartelet, Zhizhao Wang, Youngseob Kim, Victor Lannuque, and Florian Couvidat

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Cumulative views and downloads (calculated since 02 Jun 2025)

Month	HTML	PDF	XML	Total
Jun 2025	296	44	16	356
Jul 2025	80	20	6	106
Aug 2025	928	20	0	948
Sep 2025	3,560	46	10	3,616
Oct 2025	166	34	2	202
Nov 2025	64	46	12	122
Dec 2025	116	106	26	248
Jan 2026	492	128	12	632
Feb 2026	543	91	11	645
Mar 2026	186	101	12	299
Apr 2026	198	57	5	260
May 2026	85	16	2	103

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Short summary

The model simulates the evolution of primary and secondary pollutants via gas-phase chemistry, aerosol dynamics (including ultrafine particles), and intra-particle reactions. It uses a sectional approach for size and composition, includes a wall-loss module, and links gas-phase mechanisms of different complexity to secondary organic aerosol formation. Representation of particle phase composition allows viscosity and non-ideality to be taken into account.