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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">Morskoj gidrofizičeskij žurnal</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">Morskoj gidrofizičeskij žurnal</journal-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Морской гидрофизический журнал</trans-title>
        </trans-title-group>
      </journal-title-group>
      <issn publication-format="print">0233-7584</issn>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">20240402</article-id>
      <article-id pub-id-type="edn">QJJFVQ</article-id>
      
      <article-categories>
        <subj-group subj-group-type="toc-heading" xml:lang="en">
          <subject>Analysis of observations and methods of calculating Hydrophysical fields in the ocean</subject>
        </subj-group>
        <subj-group subj-group-type="toc-heading" xml:lang="ru">
          <subject>Анализ результатов наблюдений и методы расчета гидрофизических полей океана</subject>
        </subj-group>
        <subj-group subj-group-type="article-type">
          <subject>Research Article</subject>
        </subj-group>
      </article-categories>

      <title-group>
        <article-title xml:lang="en">Climatic Structure and Intra-Annual Variability of Temperature Fronts on the Ocean Surface in the Patagonian Shelf Region</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Климатическая структура и внутригодовая изменчивость температурных фронтов на поверхности океана в районе Патагонского шельфа</trans-title>
        </trans-title-group>
      </title-group>

      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2669-7304</contrib-id>
          <contrib-id contrib-id-type="researcherid">AAC-6651-2020</contrib-id>
          <contrib-id contrib-id-type="spin">9350-8966</contrib-id>
          <name-alternatives>
            <name xml:lang="en">
              <surname>Artamonov</surname>
              <given-names>Yu. V.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Артамонов</surname>
              <given-names>Ю. В.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>ведущий научный сотрудник, отдел океанографии, ФГБУН ФИЦ МГИ (Россия, 299011, г. Севастополь, ул. Капитанская, д. 2), доктор географических наук</p></bio>
          <email>artam-ant@yandex.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1012-515X</contrib-id>
          <contrib-id contrib-id-type="researcherid">AAC-6648-2020</contrib-id>
          <contrib-id contrib-id-type="spin">6064-4860</contrib-id>
          <name-alternatives>
            <name xml:lang="en">
              <surname>Skripaleva</surname>
              <given-names>E. A.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Скрипалева</surname>
              <given-names>Е. А.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>старший научный сотрудник, отдел океанографии, ФГБУН ФИЦ МГИ (Россия, 299011, г. Севастополь, ул. Капитанская, д. 2), кандидат географических наук</p></bio>
          <email>sea-ant@yandex.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3368-6745</contrib-id>
          <contrib-id contrib-id-type="researcherid">AAT-7723-2020</contrib-id>
          <contrib-id contrib-id-type="spin">2374-8598</contrib-id>
          <name-alternatives>
            <name xml:lang="en">
              <surname>Nikolsky</surname>
              <given-names>N. V.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Никольский</surname>
              <given-names>Н. В.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>младший научный сотрудник, отдел океанографии, ФГБУН ФИЦ МГИ (Россия, 299011, г. Севастополь, ул. Капитанская, д. 2)</p></bio>
          <email>nikolsky.geo@gmail.com</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
      </contrib-group>

      <aff-alternatives id="aff1">
        <aff xml:lang="en">
          <institution>Marine Hydrophysical Institute, Russian Academy of Sciences</institution>
          <addr-line>Sevastopol</addr-line>
          <country>Russia</country>
        </aff>
        <aff xml:lang="ru">
          <institution>Морской гидрофизический институт РАН</institution>
          <addr-line>Севастополь</addr-line>
          <country>Россия</country>
        </aff>
      </aff-alternatives>

      <pub-date date-type="pub" iso-8601-date="2024-08-31" publication-format="electronic">
        <day>31</day>
        <month>08</month>
        <year>2024</year>
      </pub-date>
      <volume>40</volume>
      <issue>4</issue>
      <fpage>514</fpage>
      <lpage>533</lpage>

      <history>
        <date date-type="received" iso-8601-date="2024-03-04">
          <day>04</day>
          <month>03</month>
          <year>2024</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2024-05-06">
          <day>06</day>
          <month>05</month>
          <year>2024</year>
        </date>
        <date date-type="accepted" iso-8601-date="2024-05-16">
          <day>16</day>
          <month>05</month>
          <year>2024</year>
        </date>
      </history>

      <permissions>
        <copyright-statement xml:lang="en">Copyright ©; 2024, Artamonov Yu.V., Skripaleva E.A., Nikolsky N.V.</copyright-statement>
        <copyright-statement xml:lang="ru">Copyright ©; 2024, Артамонов Ю.В., Скрипалева Е.А., Никольский Н.В.</copyright-statement>
        <copyright-year>2024</copyright-year>
        <copyright-holder xml:lang="en">Artamonov Yu.V., Skripaleva E.A., Nikolsky N.V.</copyright-holder>
        <copyright-holder xml:lang="ru">Артамонов Ю.В., Скрипалева Е.А., Никольский Н.В.</copyright-holder>
        <ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/>
        <license>
          <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0/</ali:license_ref>
        </license>
      </permissions>
      <self-uri xlink:href="https://xn--c1agq7a.xn--p1ai/repository/issues/2024/04/02/" xlink:title="Страница статьи">https://xn--c1agq7a.xn--p1ai/repository/issues/2024/04/02/</self-uri>
      
      <abstract xml:lang="en">
        <p><bold>Purpose.</bold> The aim of the study is to analyze the features of mean long-term structure and intra-annual variability of the characteristics of temperature fronts on the ocean surface in the Patagonian shelf region.</p>
        <p><bold>Methods and Results.</bold> Daily average values of the ocean surface temperature from the NOAA OI SST data and the geostrophic velocity components on the surface at the nodes of a 0.25° regular grid from the CMEMS reanalysis for 1993–2020 were used. It is shown that at the western periphery of a large-scale cyclonic meander formed by the currents in the Patagonian shelf region (south of 45° S), three branches of the Subantarctic Front are traced; they correspond to the West Falkland Current and to two jets of the East Falkland Current. North of 45° S, where one Falkland Current jet is observed, one branch of the Subantarctic Front is identified. On the eastern periphery of the meander, the front corresponding to the common stream of the Brazil Current and the Falkland Return Current is revealed. Besides, south of 40° S, a separate branch of the Subantarctic Front corresponding to one more recirculation of the Falkland Current is observed. It is shown that at the meander western periphery, the branches of the Subantarctic Front are most intensified in February – March, at its eastern periphery – in March – April, and at the meander northern peak (in the zone of the Brazil – Falkland Confluence) – in April – May and November.</p>
        <p><bold>Conclusions.</bold> It is found that on the western periphery of the cyclonic meander, south of 45° S, the main branch of the Subantarctic Front approximately follows the 900–1000 m isobaths, north of 45°S – the 150–170 m isobaths, and closer to the Brazil – Falkland Confluence – the 50–60 m isobaths. At the meander eastern periphery, north of 40° S, the main branch of the front is very close to the 800–1000 m isobaths, south of 40°S – to the 1000–2500 m isobaths. It has been established that the differences between the seasonal cycles of intensity of the Subantarctic Front branches are related to the dissimilar warming and cooling rates of surface waters separated by these branches.</p>
      </abstract>
      
      <trans-abstract xml:lang="ru">
        <p><bold>Цель.</bold> Цель работы – проанализировать особенности среднемноголетней структуры и внутригодовой изменчивости характеристик температурных фронтов на поверхности океана в районе Патагонского шельфа.</p>
        <p><bold>Методы и результаты.</bold> Использовались среднесуточные значения температуры на поверхности океана из массива NOAA OI SST и составляющих геострофической скорости на поверхности из реанализа CMEMS в узлах регулярной сетки с шагом 0,25° за 1993–2020 гг. На западной периферии крупномасштабного циклонического меандра, образуемого течениями в районе Патагонского шельфа, южнее 45° ю. ш. выделены три ветви Субантарктического фронта, соответствующие Западному Фолклендскому течению и двум струям Восточного Фолклендского течения. Севернее 45° ю. ш., где наблюдается одна струя Фолклендского течения, выделена одна ветвь Субантарктического фронта. На восточной периферии выделены фронт, соответствующий общему потоку Бразильского течения и рециркуляции Фолклендского течения, и южнее 40° ю. ш. – отдельная ветвь Субантарктического фронта, соответствующая еще одной рециркуляции Фолклендского течения. Показано, что на западной периферии меандра ветви фронта максимально обостряются в феврале – марте, на восточной периферии – в марте – апреле, в зоне схождения Фолклендского и Бразильского течений – в апреле – мае и ноябре.</p>
        <p><bold>Выводы.</bold> Выявлено, что основная ветвь Субантарктического фронта на западной периферии циклонического меандра южнее 45° ю. ш. проходит над изобатами 900–1000 м, севернее 45° ю. ш. – над изобатами 150–170 м, ближе к зоне схождения Фолклендского и Бразильского течений – над изобатами 50–60 м. На восточной периферии меандра севернее 40° ю. ш. основная ветвь фронта проходит над изобатами 800–1000 м, южнее 40° ю. ш. – над изобатами 1000–2500 м. Установлено, что отличия сезонного цикла интенсивности разных ветвей Субантарктического фронта связаны с различиями в скорости прогрева и охлаждения поверхностных вод, разделяемых этими ветвями.</p>
      </trans-abstract>

      <kwd-group xml:lang="en">
        <kwd>Patagonian shelf</kwd>
        <kwd>large-scale cyclonic meander</kwd>
        <kwd>bottom topography</kwd>
        <kwd>Subantarctic Front</kwd>
        <kwd>Falkland Current</kwd>
        <kwd>Brazil Current</kwd>
        <kwd>seasonal variability</kwd>
        <kwd>horizontal temperature gradient</kwd>
      </kwd-group>
      <kwd-group xml:lang="ru">
        <kwd>Патагонский шельф</kwd>
        <kwd>крупномасштабный циклонический меандр</kwd>
        <kwd>донная топография</kwd>
        <kwd>Субантарктический фронт</kwd>
        <kwd>Фолклендское течение</kwd>
        <kwd>Бразильское течение</kwd>
        <kwd>сезонная изменчивость</kwd>
        <kwd>горизонтальный градиент температуры</kwd>
      </kwd-group>

      <funding-group>
        <funding-statement xml:lang="en">The study was carried out within the framework of a theme of state assignment of FSBSI FRC MHI FNNN-2024-0014 “Fundamental studies of interaction processes in the sea – air system which form variability of marine environment physical state at different spatial and temporal scales”.</funding-statement>
        <funding-statement xml:lang="ru">Работа выполнена в рамках темы государственного задания ФГБУН ФИЦ МГИ FNNN-2024-0014 «Фундаментальные исследования процессов взаимодействия в системе океан – атмосфера, формирующих изменчивость физического состояния морской среды на различных пространственно-временных масштабах».</funding-statement>
      </funding-group>
    </article-meta>
  </front>

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