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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">hydrophysics</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и прикладная гидрофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Applied Hydrophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6673</issn><issn pub-type="epub">2782-5221</issn><publisher><publisher-name>St. Petersburg Research Center of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.7868/S2073667321040043</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-131</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>ГИДРОФИЗИЧЕСКИЕ И БИОГЕОХИМИЧЕСКИЕ ПОЛЯ И ПРОЦЕССЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HYDROPHYSICAL AND BIOGEOCHEMICAL FIELDS AND PROCESSES</subject></subj-group></article-categories><title-group><article-title>Пространственно-временная изменчивость характеристик полярной фронтальной зоны в Баренцевом море в первые два десятилетия XXI века</article-title><trans-title-group xml:lang="en"><trans-title>Spatial and temporal variability of the Polar Frontal Zone characteristics in the Barents Sea in the first two decades of the XXI century</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>Коник</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Konik</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117997, Нахимовский пр., д. 36, г. Москва</p><p>199034, Университетская наб., 7–9, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>117997, Nahimovskiy prospekt, 36, Moscow</p><p>199034, 7–9, Universitetskaya Nab., St. Petersburg</p></bio><email xlink:type="simple">konikrshu@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>Зимин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zimin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117997, Нахимовский пр., д. 36, г. Москва</p><p>199034, Университетская наб., 7–9, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>117997, Nahimovskiy prospekt, 36, Moscow</p><p>199034, 7–9, Universitetskaya Nab., St. Petersburg</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>Козлов</surname><given-names>И. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>I. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>299011, Капитанская ул., 2, г. Севастополь</p></bio><bio xml:lang="en"><p>299011, Kapitanskaya Str., 2, Sevastopol</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт океанологии им. П.П. Ширшова РАН; Санкт-Петербургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Shirshov Institute of Oceanology, Russian Academy of Sciences; St. Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Морской гидрофизический институт РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Marine Hydrophysical Institute, 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>14</day><month>12</month><year>2021</year></pub-date><volume>14</volume><issue>4</issue><fpage>39</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коник А.А., Зимин А.В., Козлов И.Е., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Коник А.А., Зимин А.В., Козлов И.Е.</copyright-holder><copyright-holder xml:lang="en">Konik A.A., Zimin A.V., Kozlov I.E.</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://hydrophysics.spbrc.ru/jour/article/view/131">https://hydrophysics.spbrc.ru/jour/article/view/131</self-uri><abstract><p>Рассматривается пространственно-временная изменчивость характеристик Полярной фронтальной зоны (ПФЗ) в Баренцевом море в поверхностном слое за теплые сезоны с 2002 по 2020 гг. Кроме этого, проводится анализ повторяемости малых вихревых структур в области фронтальной зоны в разные годы и описывается связь характеристик ПФЗ с глобальными атмосферными процессами. Положение и характеристики ПФЗ в поверхностном слое Баренцева моря определялись на основе кластерного анализа, выделялись по данным спутниковых измерений. Вихревые структуры в области ПФЗ детектировались по изображениям радиолокаторов с синтезированной апертурой (РСА) Envisat Asar и Sentinel-1A/B. Для оценки влияния атмосферных процессов на характеристики ПФЗ использовались индексы NAO, EA, EA/WR и SCAND. Установлено, что внутригодовые значения горизонтальных градиентов температуры и солености в области ПФЗ оставались стабильными в течение теплого сезона и составляли 0.05 °C/км и 0.02 ‰/км, соответственно. Изменчивость межгодовых характеристик градиента температуры ПФЗ составила от 0.02 °C/км до 0.08 °C/км, солености от 0.01 до 0.03 ‰/км, площади — от 120 до 425 тыс. км2. Установлено, что максимальные среднемесячные значения площади ПФЗ отмечались в 2007 г., а минимальные — в 2003 г. Полученные результаты показали, что после 2010 г. величина горизонтальных градиентов температуры и солености ПФЗ в поверхностном слое уменьшилась, что, вероятно, связано с процессом «атлантификации» Баренцева моря. Максимальное количество малых вихревых структур в области ПФЗ отмечалось в 2009 г. Показано, что индекс SCAND за предшествующий зимний сезон можно использовать в качестве предиктора для прогноза характеристик ПФЗ в летний период.</p></abstract><trans-abstract xml:lang="en"><p>The article considers the spatial and temporal variability of the Polar Frontal Zone (PFZ) characteristics in the Barents Sea during the warm season from 2002 to 2020. In addition, the occurrence of small eddy structures in the PFZ region in different years is investigated, and the relationship of the characteristics of the frontal zone with global atmospheric processes is described. The position and characteristics of the PFZ were derived from satellite measurements using the cluster analysis method. Eddy structures in the PFZ region were detected from images of Envisat Asar and Sentinel-1A/B synthetic aperture radars. The NAO, EA, EA/WR and SCAND indices were used to assess the influence of atmospheric processes on the PFZ properties. It was found that the intra-annual values of temperature and salinity gradients in the PFZ region remained stable during the warm season and reached 0.05 °C/km and 0.02 %/km, respectively. The variability of the interannual estimates of the PFZ properties ranged from 0.02 °C/km to 0.08 °C/km in temperature, from 0.01 to 0.03 %/km in salinity, and from 120,000 to 425,000 km2 in area. The maximum monthly mean values of the PFZ area were observed in 2007, while the minimum — in 2003. The obtained results clearly showed that the intensity of the PFZ decreased after 2010, which is presumably related to the “Atlantification” of the Barents Sea. The maximum number of small eddy structures in the PFZ region was identified in 2009. It is shown that the SCAND index for the previous winter season can be used as a predictor for predicting the characteristics of the PFZ in the summer period.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>температура поверхности моря</kwd><kwd>соленость поверхности моря</kwd><kwd>спутниковые наблюдения</kwd><kwd>кластерный анализ</kwd><kwd>Полярная фронтальная зона</kwd><kwd>малые вихри</kwd><kwd>NAO</kwd><kwd>EA</kwd><kwd>EA/WR</kwd><kwd>SCAND</kwd><kwd>Баренцево море</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sea surface temperature</kwd><kwd>sea surface salinity</kwd><kwd>satellite observations</kwd><kwd>cluster analysis</kwd><kwd>Polar frontal zone</kwd><kwd>small eddies</kwd><kwd>NAO</kwd><kwd>EA</kwd><kwd>EA/WR</kwd><kwd>SCAND</kwd><kwd>Barents Sea</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This research was supported by RFBR grant 20–35–90053 (analysis of the data on frontal zone characteristic and atmospheric oscillations); the Ministry of Science and Higher Education of the Russian Federation, theme 0128–2021–0014 (processed and analyzed of satellite data on sea surface temperature and salinity); the Ministry of Science and Higher Education of the Russian Federation, theme 075–00429–21–03 (analysis of the characteristics of eddies structures according to satellite SAR data).</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">Трофимов А.Г., Карсаков А.Л., Ившин В.А. 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