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Information × Registration Number 0225U004816, (0125U003044) , R & D reports Title Dynamics of the polar atmosphere at different intensities of the stratospheric polar vortex popup.stage_title Визначення параметрів стратосферного полярного вихору та їх трендів на основі багаторічних даних. Виявлення взаємозв'язків між характеристиками планетарних хвиль, станом стратосферного полярного вихору і розподілом загального вмісту озону. З'ясування особливостей умов у стратосфері протягом 2019-2024 рр. і визначення тенденцій за поточними даними 2025 р. Head Hrytsai Asen V., Кандидат фізико-математичних наук Registration Date 19-12-2025 Organization Taras Shevchenko National University of Kyiv popup.description1 Elucidating the relationships between the characteristics of the middle atmosphere and the state of the stratospheric polar vortex popup.description2 STRATOSPHERIC POLAR VORTEX, SUDDEN STRATOSPHERIC WARMINGS, PLANETARY WAVES, ZONAL WIND, TOTAL OZONE COLUMN, REANALYSES Research object: Stratospheric polar vortex in the southern hemisphere. Purpose: Determination of relationships between characteristics of the middle atmosphere and the stratospheric polar vortex state. Research methods: statistical methods, superposed epoch analysis; Fourier analysis; correlation analysis. It was shown that the amplitude of the wave with zonal number 1 in the Antarctic stratosphere reaches a maximum at moderate westerly winds with their velocity 40-50 m/s. In contrast, travelling wave 2 has maximum amplitude at strong winds of about 80 m/s. Three main scenarios for the Antarctic stratosphere in spring are distinguished: significant sudden stratospheric warming (SSW) with a noticeable increase in temperature and total ozone content (TOC), as well as a decrease in the velocity of westerly zonal wind; minor SSW; strong vortex. The spatial TOC anomalies before, during and after warmings were studied, and the presence of preconditions for the most noticeable events was established with an increase in ozone content in East Antarctica a few weeks before the SST maximum. A delay by 40–50 days was found in TOC changes relative to temperature. It indicates possible inertial photochemical and dynamic processes. 37 profiles of the vertical ozone distribution at Akademik Vernadsky in 2018–2025 were obtained. Results of the study allow a more complete understanding of relationships between stratospheric parameters and ozone distribution. Revealed dependencies, in particular, between the zonal wind velocity and the amplitude of planetary waves, are important for further research. The study demonstrates that warmings are not sudden in the sense of an unexpected beginning; instead, they are prepared by earlier processes in the stratosphere for several weeks. Product Description popup.authors Reshetnyk Volodymyr M. Danylevskyi Vasyl O. Volkova Tetiana V. Andriienko Yuliia S. Diana V. Zazubyk Oleksandra V. Bilous popup.nrat_date 2025-12-19 Close