Articles | Volume 19, issue 13
https://doi.org/10.5194/acp-19-8783-2019
https://doi.org/10.5194/acp-19-8783-2019
Research article
 | 
10 Jul 2019
Research article |  | 10 Jul 2019

Enhanced ice nucleation activity of coal fly ash aerosol particles initiated by ice-filled pores

Nsikanabasi Silas Umo, Robert Wagner, Romy Ullrich, Alexei Kiselev, Harald Saathoff, Peter G. Weidler, Daniel J. Cziczo, Thomas Leisner, and Ottmar Möhler

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Latest update: 22 May 2024
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Short summary
Annually, over 600 Tg of coal fly ash (CFA) is produced; a significant proportion of this amount is injected into the atmosphere, which could significantly contribute to heterogeneous ice formation in clouds. This study presents an improved understanding of CFA particles' behaviour in forming ice in clouds, especially when exposed to lower temperatures before being re-circulated in the upper troposphere or entrained into the lower troposphere.
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