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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">10.30758/0555-2648-2026-72-1-35-51</article-id><article-id custom-type="elpub" pub-id-type="custom">aari-790</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>МЕТЕОРОЛОГИЯ И КЛИМАТОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METEOROLOGY AND CLIMATOLOGY</subject></subj-group></article-categories><title-group><article-title>Внутрисезонные изменения и пространственные паттерны влияния арктического потепления на циркуляционные и температурные аномалии в Евразии</article-title><trans-title-group xml:lang="en"><trans-title>Intraseasonal changes and spatial patterns of Arctic warming influence on circulation and temperature anomalies in Eurasia.</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2007-3595</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зоркальцева</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zorkaltseva</surname><given-names>O. S.</given-names></name></name-alternatives><email xlink:type="simple">olgak@iszf.irk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2120-3574</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антохина</surname><given-names>О. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Antokhina</surname><given-names>O. Yu.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-9883-5004</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юргина</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurgina</surname><given-names>E. N.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт солнечно-земной физики Сибирского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Solar-Terrestrial Physics, Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт солнечно-земной физики Сибирского отделения РАН; Институт оптики атмосферы им. В.И. Зуева Сибирского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Solar-Terrestrial Physics, Siberian Branch of the Russian Academy of Sciences; V.I. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>01</day><month>04</month><year>2026</year></pub-date><volume>72</volume><issue>1</issue><fpage>35</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зоркальцева О.С., Антохина О.Ю., Юргина Е.Н., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Зоркальцева О.С., Антохина О.Ю., Юргина Е.Н.</copyright-holder><copyright-holder xml:lang="en">Zorkaltseva O.S., Antokhina O.Y., Yurgina E.N.</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/790">https://www.aaresearch.science/jour/article/view/790</self-uri><abstract><p>Феномен «теплая Арктика — холодная Евразия» (ТАХЕ) является проявлением влияния арктического усиления на климат средних широт. Несмотря на активное изучение, многие аспекты, в частности внутрисезонная динамика и точная роль атмосферного блокирования в формировании этого паттерна, остаются дискуссионными. В данном исследовании на основе данных реанализа ERA5 за 1979–2023 гг. проведен комплексный анализ пространственно-временной изменчивости режима ТАХЕ и его связи с блокирующими антициклонами. Установлено, что с начала 2000-х гг. произошла устойчивая перестройка режима циркуляции, выражающаяся в значительном росте индекса ТАХЕ в осенне-зимний период (тренд 1,4 °C/10 лет для зимы) и смене его сезонной динамики. В начале холодного сезона (октябрь-ноябрь) паттерн ТАХЕ тесно связан преимущественно с северным режимом блокирования, причем максимум корреляции между индексом ТАХЕ и интенсивностью северного блокирования смещен в сектор Западной Сибири (70–90° в. д.), а не к Уралу (60–70° в. д.). Это указывает на трансформацию ведущего механизма формирования ТАХЕ после 2000 г., который стал в значительной степени определяться процессами высокоширотного блокирования. Обнаруженная особенность находится в соответствии с тенденциями арктического усиления и уменьшения площади морского льда. Полученные результаты важны для понимания изменений в сезонной циркуляции и совершенствования прогнозов экстремальных погодных явлений в Евразии.</p></abstract><trans-abstract xml:lang="en"><p>The “Warm Arctic — Cold Eurasia” (WACE) pattern is a manifestation of Arctic amplification's influence on mid-latitude climate. Despite extensive research, crucial aspects such as its intraseasonal dynamics and the precise role of atmospheric blocking remain highly debated. This study presents a comprehensive analysis of the spatiotemporal variability of the WACE pattern and its connection to blocking anticyclones using ERA5 reanalysis data (1979–2023) on a 2.5° × 2.5° grid. We employed two independent methods to calculate the WACE index — based on temperature anomaly differences between the Barents-Kara Seas (BKS) and Central Eurasia (CE) and via Empirical Orthogonal Function (EOF) analysis, which objectively identified the WACE pattern as the second leading mode of temperature variability, explaining ~17 % of the variance. Atmospheric blocking was diagnosed using the GHGS index at the 500 hPa level, distinguishing between northern (50–70° N) and southern (40–60° N) regimes to account for the seasonal shifts in the blocking latitude. Our analysis reveals a sustained restructuring of atmospheric circulation since the early 2000s, marked by a statistically significant intensification of the WACE pattern in the autumn-winter period (a trend of 1.4 °C per decade for December-February) and a fundamental shift in its seasonal progression. It has been found that in the early cold season (October–November), the WACE pattern is most strongly correlated with the northern blocking events. The longitudinal focus of this correlation has shifted eastward, with its peak located over the Western Siberian sector (70–90° E), rather than the traditional Ural Mountains. The correlation coefficients in this sector for the northern regime reach 0.7 in October, underscoring a robust linkage. This points to a transformation of the primary mechanism behind WACE formation after the year 2000, which is now governed by high-latitude blocking over the increasingly ice-free Kara Sea. The observed systemic shift towards high-latitude, “Rex”-type dipole blocks effectively shortens the transitional autumn period, leading to an earlier and more abrupt establishment of winter-like circulation. These findings are important for understanding fundamental changes in seasonal circulation over Eurasia and for improving the predictability of extreme cold weather events.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>арктическое усиление</kwd><kwd>теплая Арктика — холодная Евразия (ТАХЕ)</kwd><kwd>атмосферное блокирование</kwd><kwd>циркуляция</kwd><kwd>климатические аномалии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Arctic amplification</kwd><kwd>Warm Arctic — Cold Eurasia (WACE)</kwd><kwd>atmospheric blocking</kwd><kwd>circulation</kwd><kwd>climate anomalies</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Российского научного фонда (проект № 22-77-10008-П). Хранение данных осуществлялось при финансовой поддержке Министерства науки и высшего образования Российской Федерации (субсидия № 075-ГЗ/С3569/278).</funding-statement><funding-statement xml:lang="en">This research was funded by the Russian Science Foundation, Project no. 22-77-10008-П. The data storage were financially supported by the Ministry of Science and Higher Education of the Russian Federation (Subsidy No.075-GZ/C3569/278).</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">Mokhov I.I., Semenov V.A. Weather and climate anomalies in Russian regions related to global climate change. Russian Meteorology and Hydrology. 2016;41:84–92. https://doi.org/10.3103/S1068373916020023</mixed-citation><mixed-citation xml:lang="en">Mokhov I.I., Semenov V.A. Weather and climate anomalies in Russian regions related to global climate change. 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