OZONE AND NITROGEN-DIOXIDE IN THE ATMOSPHERE ABOVE THE NORTHERN TIEN-SHAN

The results of systematic long-term measurements of the total ozone (since 1979) and nitrogen dioxide column (since 1983) in the atmosphere above the region lying in the center of the European-Asian continent, in the Tien Shan Mountains, are given. This region is distinguished by the great number of sunny days during a year. The observation stations is at the Northern shore of Issyk Kul fake (42.62 degrees N, 76.98 degrees E, 1650 above the sea level). The results of measurements are presented as monthly averaged atmospheric total ozone and NO2 stratospheric column abundances (morning and evening). The peculiarities of seasonal variations of ozone and nitrogen dioxide contents in the atmosphere, their regular variances with a quasi-biennial cycles and trends have been noticed. Irregular variances of ozone and nitrogen dioxide contents in the atmosphere, i.e, their positive and negative anomalies in the monthly averaged contents relative to long-term averaged monthly mean, have been analyzed. The synchronous and opposite in phase anomalies in variations of ozone and nitrogen dioxide contents in the atmosphere were explained by the transport and zonal circulation in the stratosphere.