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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">aari</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы Арктики и Антарктики</journal-title><trans-title-group xml:lang="en"><trans-title>Arctic and Antarctic Research</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0555-2648</issn><issn pub-type="epub">2618-6713</issn><publisher><publisher-name>Государственный научный центр Российской Федерации Арктический и антарктический научно-исследовательский институт</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30758/0555-2648-2021-67-2-134-146</article-id><article-id custom-type="elpub" pub-id-type="custom">aari-351</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИКА АТМОСФЕРЫ И ГИДРОСФЕРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ATMOSPHERE AND HYDROSPHERE PHYSICS</subject></subj-group></article-categories><title-group><article-title>Анализ динамики арктического полярного вихря во время внезапного стратосферного потепления в январе 2009 г</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of the Arctic polar vortex dynamics during the sudden stratospheric warming in January 2009</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зуев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zuev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Томск</p></bio><bio xml:lang="en"><p>Tomsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савельева</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Savelieva</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Томск</p></bio><bio xml:lang="en"><p>Tomsk</p></bio><email xlink:type="simple">esav.pv@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павлинский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlinsky</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Томск</p></bio><bio xml:lang="en"><p>Tomsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт мониторинга климатических и экологических систем&#13;
Сибирского отделения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>09</day><month>07</month><year>2021</year></pub-date><volume>67</volume><issue>2</issue><fpage>134</fpage><lpage>146</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зуев В.В., Савельева Е.С., Павлинский А.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Зуев В.В., Савельева Е.С., Павлинский А.В.</copyright-holder><copyright-holder xml:lang="en">Zuev V.V., Savelieva E.S., Pavlinsky A.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.aaresearch.science/jour/article/view/351">https://www.aaresearch.science/jour/article/view/351</self-uri><abstract><p>Арктический полярный вихрь во время своего жизненного цикла часто подвергается воздействию волновой активности. Распространяющиеся из тропосферы в стратосферу планетарные волны Россби эпизодически приводят к смещению или расщеплению полярного вихря, сопровождающемуся внезапным стратосферным потеплением (ВСП). В январе 2009 г. наблюдалось одно из сильнейших ВСП за весь период наблюдений в Арктике. В данной работе динамика полярного вихря во время ВСП 2009 г. рассмотрена с использованием нового метода, позволяющего определить площадь вихря и скорость ветра по границе вихря, а также оценить средние значения температуры и массового отношения смеси озона внутри вихря на основе данных реанализа ERA5. На основе анализа динамики арктического полярного вихря за 42 года и на примере ВСП 2009 г. показано, что, как правило, при снижении площади вихря менее 10 млн км2 и уменьшении средней скорости ветра по границе вихря ниже 30 и 45 м/с соответственно в нижней и средней стратосфере полярный вихрь становится небольшим циклоном, который полностью разрушается в течение 1–3 недель.</p></abstract><trans-abstract xml:lang="en"><p>The Arctic polar vortex is often affected by wave activity during its life cycle. The planetary Rossby waves propagating from the troposphere to the stratosphere occasionally lead to the displacement or splitting of the polar vortex, accompanied by sudden stratospheric warming (SSW). In January 2009, one of the largest SSWs was observed in the Arctic. In this work, the dynamics of the polar vortex during the 2009 SSW is considered using a new method that allows one to estimate the vortex area, the wind speed at the vortex edge, the mean temperature and ozone mass mixing ratio inside the vortex, based on the fact that the Arctic vortex edge at the 50 and 10 hPa pressure levels is determined by the geopotential values, respectively, 19.5. 104 and 29.5. 104 m2 /s2 , using the ERA5 reanalysis data. The application of this method is justified for the Arctic polar vortex, which is characterized by significant variability, especially during the period of its splitting. The splitting of the polar vortex in 2009 was observed on January 24 and 28, respectively, in the middle and lower stratosphere. About a week after the splitting, the vortices became closer in characteristics to small cyclones, which completely collapsed within 1–3 weeks. The influence of planetary wave activity on the polar vortex does not always lead to its breakdown. Short-term splitting of the polar vortex is sometimes observed for several days after which the polar vortex strengthens again and PSCs form inside the vortex. Such a recovery of the polar vortex is most likely to occur in the winter. Based on the analysis of the dynamics of the Arctic polar vortex for 1979–2020 and using the example of the 2009 SSW, we showed that when the vortex area decreases to less than 10 million km2 and the mean wind speed at the vortex edge decreases below 30 and 45 m/s, respectively, in the lower and middle stratosphere, the polar vortex becomes a small cyclone (with significantly higher temperatures within it), which usually collapses within 3 weeks.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>внезапное стратосферное потепление</kwd><kwd>геопотенциал</kwd><kwd>озоновая аномалия</kwd><kwd>полярный вихрь</kwd><kwd>полярная стратосфера</kwd></kwd-group><kwd-group xml:lang="en"><kwd>geopotential</kwd><kwd>ozone depletion</kwd><kwd>polar stratosphere</kwd><kwd>polar vortex</kwd><kwd>sudden stratospheric warming</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках госбюджетной темы № 121031300156-5.</funding-statement><funding-statement xml:lang="en">This work was supported by the State contract no. 121031300156-5.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Waugh D.W., Randel W.J. 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