Vol. 13, issue 12, article # 11

Abstract:

We present analysis of the stratospheric changes that occurred in the spring of 2000 and their influence on the stratification of ozone vertical distribution (OVD). Special attention is given to revealing the cases with fine layer structure in the OVD and meteorological situations favorable for the formation of layers. Analysis is made based on data of aerological and lidar sensing of the atmosphere and ozone. It was found that the pronounced layer structure of the OVD could be formed under the action of horizontal and vertical transport of ozone in the high-gradient parts of the high-altitude trough of a vast high-power central cyclone. In this case, the layer structures differ from each other depending on the place of their origin. In the front part of the high-altitude trough in the region of a well-developed high-altitude frontal zone, the layer structure consists of the rapidly variable layers below the ozone maximum. In the rear part of the trough (at the entrance of the high-altitude frontal zone) the layer structure is formed as the high-power secondary maximum of ozone in the lower stratosphere over the tropopause.