Imanova, A.S., Smyshlyaev, S.P., Rozanov, E.V. (2023). Analysis of Factors Affecting the Interannual Variability of Antarctic Ozone. In: Kosterov, A., Lyskova, E., Mironova, I., Apatenkov, S., Baranov, S. (eds) Problems of Geocosmos—2022. ICS 2022. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-031-40728-4_3
Published online 01.11.2023
Abstract
An analysis of the reasons for the alternation of winter-spring periods with high and low stratospheric ozone in the Antarctic region for the period from 1980 to 2020 is presented. Linear trends were calculated for three periods—from 1980 to 2020, from 1980 to 1999 and from 2000 to 2020 The influence of the meridional and zonal wind velocities at the boundary of the polar region on the formation of zones with low temperatures and ozone content has been studied.
Based on the MERRA-2 reanalysis data, the correlation coefficients between the ozone content and the zonal and meridional wind velocities were calculated. We found out that the meridional wind speed at the boundary of the polar zone, which characterize the exchange of air between the middle and polar latitudes, along with the zonal wind, can serve as an indicator of the degree of isolation of the polar region, which is the main dynamic factor determining the ozone content in the polar stratosphere in winter–spring period.