Enhanced soot particle ice nucleation ability induced by aggregate compaction and densification

Gao, Kunfeng; Friebel, Franz; Zhou, Chong-Wen; Kanji, Zamin A.

doi:https://doi.org/10.5194/acp-22-4985-2022

Articles | Volume 22, issue 7

https://doi.org/10.5194/acp-22-4985-2022

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

https://doi.org/10.5194/acp-22-4985-2022

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

Articles | Volume 22, issue 7

Research article

|

14 Apr 2022

Research article |

| 14 Apr 2022

Enhanced soot particle ice nucleation ability induced by aggregate compaction and densification

Kunfeng Gao, Franz Friebel, Chong-Wen Zhou, and Zamin A. Kanji

Data sets

Enhanced soot particle ice nucleation ability induced by aggregate compaction and densification K. Gao, F. Friebel, C.-W. Zhou, and Z. A. Kanji https://doi.org/10.3929/ethz-b-000511281

Short summary

Soot particles impact cloud formation and radiative properties in the upper atmosphere where aircraft emit carbonaceous particles. We use cloud chambers to mimic the upper atmosphere temperature and humidity to test the influence of the morphology of the soot particles on ice cloud formation. For particles larger than 200 nm, the compacted (densified) samples have a higher affinity for ice crystal formation in the cirrus regime than the fluffy (un-compacted) soot particles of the same sample.