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

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

doi:https://doi.org/10.5194/acp-23-12557-2023

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

Supplement

https://doi.org/10.5194/acp-23-12557-2023-supplement

Data sets

CALIOP algorithm theoretical basis document part 1: Calibration and level 1 data products C. A. Hostetler, Z. Liu, J. Reagan, M. Vaughan, D. Winker, M. Osborn, W. H. Hunt, K. A. Powell, and C. Trepte https://search.earthdata.nasa.gov/search?fp=CALIPSO

OMPS-NPP L2 LP Aerosol Extinction Vertical Profile swath daily 3slit V2 G. Taha https://doi.org/10.5067/CX2B9NW6FI27

OMPS-NPP L2 NM Aerosol Index swath orbital V2 O. Torres https://doi.org/10.5067/40L92G8144IV

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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.