Results of Long-term Observations of Total Ozone in Antarctica and over the Atlantic and Southern Oceans

E. E. Sibir, V. F. Radionov, and E. N. Rusina

The study presents the results of analysis of observational data on total ozone (TO) at the Russian Antarctic stations Mirny, Novolazarevskaya, and Vostok for 1975–2019 and on the research vessels for 2005–2019. A steady trend towards the TO decrease in Antarctic spring was observed till the early 2000s. Currently, there is a tendency of returning TO values to those typical of the period preceding the manifestation of the ozone hole effect.