Extremely low total ozone values over the northern Ural and Siberia in the end of January 2016
M.P. Nikiforova1, A.M. Zvyagintsev2, P.N. Vargin2, N.S. Ivanova2, A.N. Luk’yanov2, I.N. Kuznetsova3
1Federal State Autonomous Educational Institution of Higher Education “Crimean Federal University. Vernadsky”, ul. Astana Kesaev, 14J, Sevastopol, 299038, Russia
2Central Aerological Observatory, ul. Pervomayskaya, 3, Dolgoprudnyiy g., Mosk. Obl., 141700, Russia
3Hydrometeorological Centre of Russia, 11-13, Bol'shoj Predtechenskij per., 123242, Moscow, Russia
Keywords: озоновая В«мини-дыраВ», изменения озонового слоя, стратосферный полярный вихрь, динамика средней атмосферы, ozone “mini-hole”, ozone layer changes, stratospheric polar vortex, middle atmosphere dynamics
Abstract
During the last week of January 2016 total ozone values ca. 200 DU was detected over the northern Ural and Siberia. Such phenomena was classified as ozone “mini-hole”. There was the first time during all the monitoring period since 1970 when ozone “mini-hole” formed here in the first half of the year. Possible causes and factors of extremely low ozone values initiation during the winter 2016 in comparison to other Arctic winters with sufficient ozone losses were analyzed. A primary role of dynamic processes in ozone anomaly formation in January 2016 was shown. The assumption was made that the greater negative ozone anomalies are likely to appear over Arctic in future.
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