ANNUAL CYCLE, QUASI-BIENNIAL OSCILLATION, AND EL-NINO EFFECTS IN ATMOSPHERIC OZONE - ANALYSIS OF THE VERTICAL STRUCTURE AND MANIFESTATIONS IN TOTAL OZONE AS INFERRED FROM THE DATA MEASURED AT THE GOOSE-BAY STATION (53-DEGREES-N, 60-DEGREES-W)

Data of measurements of the total content and vertical distribution of atmospheric ozone at the Goose Bay station (53 degrees N, 60 degrees W) are used to study both ozone variability associated with the annual cycle, the quasi-biennial oscillation (QBO) of wind in the equatorial stratosphere, and El Nino, and a linear trend of ozone. The amplitude s and phases of different components of ozone variability exhibit indi vidual characteristic features and additionally share some common prop erties: they experience sharp variations in the vicinity of heights of 7 and 25 km, and the phases of oscillations in the lower stratosphere have downward height-time dynamics. Since the amplitudes and phases o f ozone oscillations depend on the height, ozone variations at differe nt heights partially compensate each other in integration. Therefore, the annual cycle and especially the QBO and El Nino manifest themselve s in the total ozone in a reduced way. However, in the lower stratosph ere, the combined effect of the QBO and El Nino on ozone can exceed 30 % of the amplitude of the annual cycle of ozone in this region. All th e components of ozone variability show local height maxima.