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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/S2073667321040031</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-130</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>Изменения содержания пресной воды в верхнем слое Арктического бассейна с 1950-х по 2010-е годы</article-title><trans-title-group xml:lang="en"><trans-title>Changes of fresh water content in the upper layer of the Arctic Basin in the 1950s-2010s</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>Алексеев</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseev</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199397, ул. Беринга, д. 38, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>199397, Bering St., 38, St. Petersburg</p></bio><email xlink:type="simple">alexgv@aari.ru</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>Смирнов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199397, ул. Беринга, д. 38, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>199397, Bering St., 38, 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>Пнюшков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pnyushkov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199397, ул. Беринга, д. 38, г. Санкт-Петербург</p><p>2160, Коюкук Драйв, Фэрбенкс, США</p></bio><bio xml:lang="en"><p>199397, Bering St., 38, St. Petersburg</p><p>2160, Koyukuk Dr, Fairbanks, USA</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вязилова</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Vyazilova</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199397, ул. Беринга, д. 38, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>199397, Bering St., 38, 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>Кулаков</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulakov</surname><given-names>M. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199397, ул. Беринга, д. 38, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>199397, Bering St., 38, 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>Глок</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Glok</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199397, ул. Беринга, д. 38, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>199397, Bering St., 38, St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Арктический и антарктический научно-исследовательский институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Arctic and Antarctic Research Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Арктический и антарктический научно-исследовательский институт; Международный Арктический научно-исследовательский центр, Университет Аляски</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Arctic and Antarctic Research Institute; International Arctic Research Center, University of Alaska</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>25</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алексеев Г.В., Смирнов А.В., Пнюшков А.В., Вязилова А.Е., Кулаков М.Ю., Глок Н.И., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Алексеев Г.В., Смирнов А.В., Пнюшков А.В., Вязилова А.Е., Кулаков М.Ю., Глок Н.И.</copyright-holder><copyright-holder xml:lang="en">Alekseev G.V., Smirnov A.V., Pnyushkov A.V., Vyazilova A.E., Kulakov M.Y., Glok N.I.</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/130">https://hydrophysics.spbrc.ru/jour/article/view/130</self-uri><abstract><p>В начале 1990-х гг. в климатической системе Арктики произошел сдвиг в сторону потепления, которое сопровождалось изменениями температуры и солености водных масс Арктического бассейна под влиянием возросших притоков атлантической воды, поступления со стоком рек, осадками и от таяния льда. Мы оцениваем изменения в содержании и притоках пресной воды в верхний слой Арктического бассейна от десятилетия к десятилетию с 1950-е по 2010-е гг. и связь между изменениями в Арктическом бассейне и в тропической Северной Атлантике. Полученные результаты показывают, что содержание пресной воды в верхнем слое Арктического бассейна в 1990–2000-е гг. понижалось в Евразийской и росло в Амеразийской его частях. В среднем во всём бассейне преобладал рост из-за большего вклада Амеразийской части, занимающей 61 % площади бассейна. Наибольшее содержание пресной воды во всём бассейне получено в 1960-е гг., предшествующие отрицательной солёностной аномалии в Северной Атлантике в 1960–1970-х гг. Сокращение содержания пресной воды в Евразийском бассейне произошло в результате увеличенного с 1990-х гг. притока атлантической воды и осолонения верхнего 100-метрового слоя вопреки росту осадков и речного стока в Арктический бассейн. Накопление пресной воды происходит в круговороте Бофорта и во всей Амеразийской части бассейна. В круговороте Бофорта содержание пресной воды в слое 0–100 м увеличилось в 2000–2010-х гг. на 36 % по сравнению с 1970-ми гг. Более всего (на 46 %) содержание пресной воды увеличилось в этот период в верхнем 50 м слое.</p></abstract><trans-abstract xml:lang="en"><p>In the early 1990s, there was a shift in the Arctic climate system towards warming. This shift was accompanied by water temperature and salinity changes in the Arctic Basin due to increased Atlantic water inflow, river runoff, precipitation, and ice melting. We estimated changes in the freshwater content (FWC) and freshwater inflows into the upper layer of the Arctic Basin decade by decade from the 1950s through the 2010s and showed the connection between changes in the Arctic Basin and the tropical North Atlantic. Our results show that the FWC in the upper layer of the Arctic Basin in the 1990–2000s decreased in the Eurasian Basin and increased in the Amerasian Basin. On average, the FWC increase prevailed for the whole basin due to the larger contribution of FWC changes in the Amerasian Basin that occupies 61 % of the Arctic Basin. The largest FWC for the entire Arctic Basin was observed in the 1960s and preceded the negative salinity anomaly that occurred in the North Atlantic in 1960–1970s. The reduction of the FWC in the Eurasian Basin happened due to the increased Atlantic water inflow since the 1990s that causes salinification of the upper 100 m layer despite the increased precipitation and river runoff into the Arctic Basin. A freshwater accumulation occurs in the Beaufort Gyre and the entire Amerasian part of the Arctic Basin. The FWC in the upper 0–100 m layer of the Beaufort Gyre increased in the 2000–2010s by 36 % compared to that in the 1970s. The largest FWC increase (46 %) occurred in the upper 50 m layer during this period.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Арктический бассейн</kwd><kwd>пресноводный баланс</kwd><kwd>атлантическая вода</kwd><kwd>низкие широты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Arctic Basin</kwd><kwd>freshwater balance</kwd><kwd>Atlantic water</kwd><kwd>low latitudes</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the RFBR project 18–05–60107.</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">Alekseev G., Kuzmina S., Bobylev L., Urazgildeeva A., Gnatiuk N. Impact of atmospheric heat and moisture transport on the Arctic warming // Int. J. Climatol. 2019. V. 39, № 8. P. 1–11. doi: 10.1002/joc.6040</mixed-citation><mixed-citation xml:lang="en">Alekseev G., Kuzmina S., Bobylev L., Urazgildeeva A., Gnatiuk N. 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