Stratospheric aerosol layer for period of 2018-2023 using measurements at Siberian Lidar Station in Tomsk

A. V. Nevzorov; S. I. Dolgii; A. P. Makeev; O. V. Kharchenko; N. S. Salnikova

doi:10.1117/12.2688302

17 October 2023 Stratospheric aerosol layer for period of 2018-2023 using measurements at Siberian Lidar Station in Tomsk

A. V. Nevzorov, S. I. Dolgii, A. P. Makeev, O. V. Kharchenko, N. S. Salnikova

Author Affiliations +

Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127801V (2023) https://doi.org/10.1117/12.2688302
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

In this work, long observation time series of the integrated aerosol backscattering coefficient, obtained at the Siberian Lidar Station in Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk were used to show that the stratospheric aerosol starts growing at a rate of 1.08 ∙ 10⁻³ sr^-1 per decade after 2018. Comparison of the seasonal regional empirical model of background stratospheric aerosol for 2000-2018 and seasonal average profiles for 2018-2023 showed a significant increase in stratospheric aerosol throughout the stratosphere over the last five-year period; the maximal deviations of the scattering ratio reached 0.1 for summer and 0.2 for winter in the lower stratosphere. It is hypothesized that the aerosol in the stratosphere could increase due to the global effect of explosive eruptions of the volcanoes Raikoke in June 2019 and the submarine volcano Hunga Tonga-Hunga Ha’apai in January 2022.

Citation Download Citation

A. V. Nevzorov, S. I. Dolgii, A. P. Makeev, O. V. Kharchenko, and N. S. Salnikova "Stratospheric aerosol layer for period of 2018-2023 using measurements at Siberian Lidar Station in Tomsk", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127801V (17 October 2023); https://doi.org/10.1117/12.2688302

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