Institute of Atmospheric Physics;
Academia Sinica;
Beijing 100080;
Institute of Atmospheric Physics;
Academia Sinica;
Beijing 100080he harmonic analyses of monthly mean total ozone in the atmosphere over the Northern Hemisphere for 26 years (1960-1985) are made by using the Fourier expansion. The analysed results show that there is obviously a quasi-biennial oscillation (QBO) in the interannual variations of the amplitudes of total ozone. Generally;
the amplitudes of wavenumber 1 and 2 during the westerly of the equatorial QBO are larger than those during the easterly. In the early winter;
the amplitude of wavenumber 1 during the easterly phase is larger;
and in the late winter;
it is larger during the westerly phase. These are in good agreement with the observational distributions.;
equatorial; interannual; Tropical; winter; observational; ozone; analysed; oscillation; zonal; seasonal;