Synoptic analysis of stratospheric ozone change trends in Tehran metropolis

Abstract

In this study, in order to study the ozone deviation of stratospheric layer. The results indicate that with increasing ozone, the surface temperature has decreased and ozone has been added to the surface temperature. In the study of the relationship between the amount of ozone and the height of the Tropopause between the highest and lowest ozone and Tropopause height during the statistical period in winter, about 79%, the spring of 73%, the summer season was 67% and in the autumn, 62% with the increase in the height of the tropopause layer, The amount of ozone has decreased. Synoptically on days with ozone increase, are well adapted to changes in the total ozone bar column In the majority of cases, the passage of high peaks and vortices to the region in the stratosphere has caused intense cooling and increased ozone concentrations. On the contrary, with the removal of the Trough and Vortex, a deep heap of Saudi high pressure to the studied area has been expanded, and with the warming of the air on the ridges, it increases the elevation of the geopotential and decreases the ozone in the region.

Keywords

• stratospheric ozone
• tropopause
• oscillations
• synoptic
• tehran metropolis