Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 23, issue 19
Articles | Volume 23, issue 19
https://doi.org/10.5194/acp-23-12557-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-12557-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 19
Research article
 | 
09 Oct 2023
Research article |  | 09 Oct 2023

Short- and long-term stratospheric impact of smoke from the 2019–2020 Australian wildfires

Johan Friberg, Bengt G. Martinsson, and Moa K. Sporre

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Latest update: 02 May 2026
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Short summary
We study the short- and long-term stratospheric impact of smoke from the massive Australian wildfires in Dec 2019–Jan 2020 using four satellite sensors. Smoke entered the stratosphere rapidly via transport by firestorms, as well as weeks after the fires. The smoke particle properties evolved over time together with rapidly decreasing stratospheric aerosol load, suggesting photolytic loss of organics in the smoke particles. The depletion rate was estimated to a half-life (e folding) of 10 (14) d.
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