Tomsk, Tomsk, Russian Federation
Russian Federation
The report presents a study of the intra-annual variability of the vertical–temporal structure of background aerosol and its integrated content in the stratosphere based on an analysis of aerosol optical characteristics. The results were obtained using the lidar system of the High Altitude Atmospheric Sounding Station of the V.E. Zuev Institute of Atmospheric Optics SB RAS for 2025. Monitoring data from previous years reveal a stable cyclic pattern in stratospheric aerosol loading, with maximum content observed in winter and minimum in summer, differing by a factor of about three. In the upper stratosphere (30 - 50 km), background aerosol is practically absent throughout the year. In 2025, two significant events were observed in the dynamics of stratospheric aerosol: the occurrence of polar stratospheric clouds and the formation of pyrocumulonimbus clouds associated with forest fires.
intra-annual variability, vertical-temporal structure, background aerosol, stratosphere
1. Marichev V. N., Bochkovskiy D. A., Elizarov A. I. Opticheskie harakteristiki stratosfernogo aerozolya Zapadnoy Sibiri po rezul'tatam lidarnogo monitoringa v 2010–2021 gg. // Optika atmosfery i okeana. 2022. T. 35. № 09. S. 717–721. DOI:https://doi.org/10.15372/AOO20220904.
2. Marichev V.N., Bochkovskiy D.A. Monitoring izmenchivosti stratosfernogo sloya aerozolya nad Tomskom v 2016-2018 gg.// Meteorologiya i Gidrologiya.2021. №1. S.61-72. DOI:https://doi.org/10.3103/S1068373921010064
3. Marichev V.N., Bochkovskiy D. A. Lidarnye issledovaniya stratosfernogo aerozolya nad tomskom v 2024 g. // Optika atmosfery i okeana. Fizika atmosfery : Materialy XXXI Mezhdunarodnogo simpoziuma. g. Tomsk. 2025. T.1, S.1-9. DOI :https://doi.org/10.56820/conferencearticle_685be467023a94.38934996
4. Trickl T., Giehl H., J¨ager H., and VogelmannH. 35 yr of stratospheric aerosol measurements at Garmisch-Partenkirchen: from Fuego to Eyjafjallaj¨okull, and beyond // Atmos. Chem. Phys., 13, 5205–5225, 2013 www.atmos-chem-phys.net/13/5205/2013/ doihttps://doi.org/10.5194/acp-13-5205-2013
5. Cheremisin A. A., Marichev V. N., Novikov P. V. Perenos polyarnyh stratosfernyh oblakov iz Arktiki k Tomsku v yanvare 2010 g. // Optika atmosfery i okeana. 2013. T. 26. № 02. S. 93-99
6. Marichev V.N., Bochkovskiy D.A. Issledovanie izmenchivosti vertikal'noy stratifikacii fonovogo aerozolya nad Tomskom v 2016 g. ya osnove lidarnyh nablyudeniy. // Sbornik dokladov 23-go mezhdunarodnogo simpoziuma «Optika atmosfery i okeana. Fizika atmosfery». 3-7 iyulya 2017 goda, Irkutsk, S. D193-D200
7. Marichev V. N., Bochkovskiy D.A. Osobennosti stratosfernyh vozmuscheniy nad Tomskom zimoy 2024/25 g po dannym lidarnyh nablyudeniy.// Meteorologiya i Gidrologiya. 2026. №2. S.56-62. DOI:https://doi.org/10.52002/0130-2906-2026-2-55-62]
8. Romanchenko I. I., Marichev V. N., Novikov P. V., Bochkovskiy D. A., Cheremisin A. A. Lidarnye nablyudeniya dymov lesnyh pozharov v stratosfere nad Tomskom v iyune 2025 g. // Optika atmosfery i okeana. 2025. T. 38. № 12. S. 1028–1030. DOI:https://doi.org/10.15372/AOO20251209
9. Cheremisin A.A., Marichev V.N., Bochkovskii D.A., Novikov P.V. and Romanchenko I.I. Stratospheric Aerosol of Siberian Forest Fires According to Lidar Observations in Tomsk in August 2019 // Atmospheric and Oceanic Optics, 2022, V. 35. No. 01. pp. 57–64.
10. Vaughan G., Draude A.P., Ricketts H.M.A., Schultz D.M., Adam M., Sugier J., Wareing D.P. Transport of Canadian forest fire smoke over the UK as observed by lidar // Atmos. Chem. Phys. 2018. V. 18. P. 11375–11388.
11. Ansmann A., Baars H., Chudnovsky A., Mattis I., Veselovskii I., Haarig M., Seifert P., Engelmann R., Wandinger U. Extreme levels of Canadian wildfire smoke in the stratosphere over central Europe on 21–22 August 2017 // Atmos. Chem. Phys. 2018. V. 18. P. 11831– 11845.
12. Khaykin S.M., Godin-Beekmann S., Hauchecorne A., Pelon J., Ravetta F., Keckhut P. Stratospheric smoke with unprecedentedly high backscatter observed by lidars above southern France // Geophys. Res. Lett. 2018. V. 45. P. 1639–1646
13. Siddaway J.M., Petelina S.V. Transport and evolution of the 2009 Australian Black Saturday bush fire smoke in the lower stratosphere observed by OSIRIS on Odin // J. Geophys. Res. 2011. V. 116. P. D06203.
14. Fromm M., Alfred J., Hoppel K., Hornstein J., Bevilacqua R., Shettle E., Servranckx R., Li Z., Stocks B. Observations of boreal forest fire smoke in the stratosphere by POAM III, SAGE II, and lidar in 1998 // Geophys. Res. Lett. 2000. V. 27, N 9. P. 1407–1410.
15. Korshunov V.A. and Zubachev D.S. Characteristics of Stratospheric Aerosol from Data of Lidar Measurements over Obninsk in 2012–2015. // Atmospheric and Oceanic Optics, 2017, V. 30. No. 03. pp. 226–233.
