Trends and variations in total ozone over the North Caucasus

Vladimir V. Savinykh; Aleksandr N. Gruzdev; Nikolai F. Elansky

doi:10.1117/12.2602435

15 December 2021 Trends and variations in total ozone over the North Caucasus

Vladimir V. Savinykh, Aleksandr N. Gruzdev, Nikolai F. Elansky

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119162S (2021) https://doi.org/10.1117/12.2602435
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

Analysis of variations and trends in the total ozone content (TOC) at the Kislovodsk High-Altitude Scientific Station is done based on measurements with the Brewer MkII #043 spectrophotometer in 1989–2020. Seasonally dependent estimates of long-term trends and interannual changes in TOC under the influence of the 11-year solar cycle, the quasibiennial oscillation in the equatorial stratosphere, the North Atlantic Oscillation and the El Nino–Southern Oscillation are obtained. The TOC trend is positive in 1989–2002 (1.6% per decade) and negative in 2003–2020 (–1.2% per decade). The obtained characteristics of ozone variability indicate a special character of interannual and long-term evolution of TOC over the North Caucasus. Particularly, the TOC trends over the North Caucasus region are opposite in sign to the trends of zonal mean TOC values.

Citation Download Citation

Vladimir V. Savinykh, Aleksandr N. Gruzdev, and Nikolai F. Elansky "Trends and variations in total ozone over the North Caucasus", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119162S (15 December 2021); https://doi.org/10.1117/12.2602435

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