Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 23, issue 18
Articles | Volume 23, issue 18
https://doi.org/10.5194/acp-23-10361-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-10361-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 18
Research article
 | 
19 Sep 2023
Research article |  | 19 Sep 2023

Quantifying SAGE II (1984–2005) and SAGE III/ISS (2017–2022) observations of smoke in the stratosphere

Larry W. Thomason and Travis Knepp

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Ansmann, A., Ohneiser, K., Mamouri, R.-E., Knopf, D. A., Veselovskii, I., Baars, H., Engelmann, R., Foth, A., Jimenez, C., Seifert, P., and Barja, B.: Tropospheric and stratospheric wildfire smoke profiling with lidar: mass, surface area, CCN, and INP retrieval, Atmos. Chem. Phys., 21, 9779–9807, https://doi.org/10.5194/acp-21-9779-2021, 2021. 
Binskin, M., Bennett, A., and Macintosh, A.: Royal Commission into National Natural Disaster Arrangements: report, The Commission, Canberra, p. 115, ISBN: 978-1-921091-45-2, 2020. 
Bergstrom, R. W., Russell, P. B., and Hignett, P.: Wavelength Dependence of the Absorption of Black Carbon Particles: Predictions and Results from the TARFOX Experiment and Implications for the Aerosol Single Scattering Albedo, J. Atmos. Sci., 59, 567–577, https://doi.org/10.1175/1520-0469(2002)059<0567:WDOTAO>2.0.CO;2, 2002. 
Boone, C. D., Bernath, P. F., Labelle, K., and Crouse, J.: Stratospheric aerosol composition observed by the Atmospheric Chemistry Experiment following the 2019 Raikoke eruption, J. Geophys. Res.-Atmos, 127, e2022JD036600, https://doi.org/10.1029/2022JD036600, 2022. 
Bourassa, A. E., Rieger, L. A., Zawada, D. J., Khaykin, S., Thomason, L. W., and Degenstein, D. A.: Satellite limb observations of unprecedented forest fire aerosol in the stratosphere, J. Geophys. Res., 124, 9510–9519, https://doi.org/10.1029/2019JD030607, 2019. 
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We examine space-based observations of stratospheric aerosol to infer the presence of episodic smoke perturbations. We find that smoke's optical properties often show a consistent behavior but vary somewhat from event to event. We also find that the rate of smoke events observed in the 1984–2005 period is about half the rate of similar observations in the period from 2017 to the present; however, with such low overall rates, inferring change between the periods is difficult.
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