Vol. 23, issue 09, article # 7

Abstract:

Dynamics of the troposphere ozone vertical distribution above one of the Siberian regions is considered, based on many-years sensing of troposphere from the AN-30 aircraft-laboratory, using the 3-02P chemiluminescence lidar. Two clearly distinguished modes are seen in the yearly vertical ozone distribution: autumn-winter and spring-summer. The transitions from the autumn-winter mode to the spring-summer one begins near the ground surface at the end of February and terminates in the upper troposphere at the end of April; the back transition begins in the upper troposphere in the beginning of September and terminates in the middle troposphere in the middle of October. The distinct maxima and two minima were fixed in the free troposphere for the considered period (1997-2009). Not all of them were reflected at the ground layer, as well as zones of the ozone increased concentrations do not reach the upper troposphere. Most possible, this is the ozone generation from compounds, carried from other regions due to the variation of circulation processes. The peculiarities of the ozone distribution in the atmospheric boundary layer are also considered.

Keywords:

ozone, vertical, distribution, troposphere