Winter ozone transport variations and the Montreal protocol impact as revealed by the total ozone ground-based measurements over the Russian territory in 1973-2005

Abstract

Mean monthly total ozone (TO) data measured at the 32 stations are averaged over the five climatic regions of Russia. Statistical analysis of the 15 time series of annually averaged (December-March and June-August) TO in each region reveals the significant differences between the time series statistical characteristics in the regions of Asian and European Russia. Spectral analysis of the detrended time series indicate the significant effects of the eleven - year solar cycle and of the quasibiannual oscillation (QBO) in all the above TO time series with predominance of the solar cycle in European regions and of the QBO in Asian areas. © Springer Science+Business Media B.V. 2009.