Soot aerosols from commercial aviation engines are poor ice-nucleating particles at cirrus cloud temperatures

Testa, Baptiste; Durdina, Lukas; Alpert, Peter A.; Mahrt, Fabian; Dreimol, Christopher H.; Edebeli, Jacinta; Spirig, Curdin; Decker, Zachary C. J.; Anet, Julien; Kanji, Zamin A.

doi:https://doi.org/10.5194/acp-24-4537-2024

Articles | Volume 24, issue 7

https://doi.org/10.5194/acp-24-4537-2024

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

https://doi.org/10.5194/acp-24-4537-2024

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

Articles | Volume 24, issue 7

Research article

|

17 Apr 2024

Research article |

| 17 Apr 2024

Soot aerosols from commercial aviation engines are poor ice-nucleating particles at cirrus cloud temperatures

Baptiste Testa, Lukas Durdina, Peter A. Alpert, Fabian Mahrt, Christopher H. Dreimol, Jacinta Edebeli, Curdin Spirig, Zachary C. J. Decker, Julien Anet, and Zamin A. Kanji

Data sets

Soot aerosol from commercial aviation engines are poor ice nucleating particles at cirrus cloud temperatures Baptiste Testa, Lukas Durdina, Peter A. Alpert, Fabian Mahrt, Christopher H. Dreimol, Jacinta Edebeli, Curdin Spirig, Zachary C.J. Decker, Julien Anet, and Zamin A. Kanji https://doi.org/10.3929/ethz-b-000634341

Short summary

Laboratory experiments on the ice nucleation of real commercial aviation soot particles are investigated for their cirrus cloud formation potential. Our results show that aircraft-emitted soot in the upper troposphere will be poor ice-nucleating particles. Measuring the soot particle morphology and modifying their mixing state allow us to elucidate why these particles are ineffective at forming ice, in contrast to previously used soot surrogates.