ANALYSIS OF THE ANNUAL VARIATION OF TROPOSPHERIC AND STRATOSPHERIC OZONE DERIVED FROM OZONESONDE DATA

The comprehensive analysis of annual variation in the latitude-height field of ozone mixing ratios is performed on the basis of ozone soundings at 28 stations of the World ozone measuring network. Using different characteristics of the annual variation and applying various methods of analysis peculiarities and common features of the intra-annual evolution of ozone are revealed in the middle and lower stratosphere, the free troposphere and the atmospheric boundary layer in the Arctic, Antarctic, middle and subtropical latitudes of the Northern Hemisphere (NH), middle latitudes of the Southern Hemisphere (SH). Essential differences are noted in the ozone intra-annual evolution between the Arctic and the Antarctic. Their possible mechanisms are discussed. The estimate is obtained of the cross-tropopause ozone flux responsible for the large increase in the tropospheric ozone content in the NH extratropical latitudes in March - April.