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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">20240206</article-id>
      <article-id pub-id-type="edn">QIJKYN</article-id>
      
      <article-categories>
        <subj-group subj-group-type="toc-heading" xml:lang="en">
          <subject>Experimental and field research</subject>
        </subj-group>
        <subj-group subj-group-type="toc-heading" xml:lang="ru">
          <subject>Экспериментальные и экспедиционные исследования</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">Influence of Coastal Upwelling on Chlorophyll a Distribution in the Coastal Zone of the Southeastern Baltic Sea in Summer Periods, 2000–2019</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Влияние апвеллинга на распределение хлорофилла a в прибрежной зоне Юго-Восточной Балтики в летний период 2000–2019 годов</trans-title>
        </trans-title-group>
      </title-group>

      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7507-3170</contrib-id>
          <contrib-id contrib-id-type="researcherid">L-2625-2016</contrib-id>
          <contrib-id contrib-id-type="spin">5287-1100</contrib-id>
          <name-alternatives>
            <name xml:lang="en">
              <surname>Kapustina</surname>
              <given-names>M. V.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Капустина</surname>
              <given-names>М. В.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>младший научный сотрудник, Институт океанологии им. П. П. Ширшова РАН (Россия, 117997, г. Москва, Нахимовский проспект, д. 36)</p></bio>
          <email>kapustina.mariya@ya.ru</email>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1662-6385</contrib-id>
          <contrib-id contrib-id-type="researcherid">C-5885-2014</contrib-id>
          <contrib-id contrib-id-type="spin">9833-3460</contrib-id>
          <name-alternatives>
            <name xml:lang="en">
              <surname>Zimin</surname>
              <given-names>A. V.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Зимин</surname>
              <given-names>А. В.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>главный научный сотрудник, Институт океанологии им. П. П. Ширшова РАН, доктор географических наук, доцент</p></bio>
          <email>zimin2@mail.ru</email>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
      </contrib-group>

      <aff-alternatives id="aff1">
        <aff xml:lang="en">
          <institution>Shirshov Institute of Oceanology, Russian Academy of Sciences</institution>
          <addr-line>Moscow</addr-line>
          <country>Russia</country>
        </aff>
        <aff xml:lang="ru">
          <institution>Институт океанологии им. П. П. Ширшова РАН</institution>
          <addr-line>Москва</addr-line>
          <country>Россия</country>
        </aff>
      </aff-alternatives>
      <aff-alternatives id="aff2">
        <aff xml:lang="en">
          <institution>Saint-Petersburg State University</institution>
          <addr-line>Saint Petersburg</addr-line>
          <country>Russia</country>
        </aff>
        <aff xml:lang="ru">
          <institution>Санкт-Петербургский государственный университет</institution>
          <addr-line>Санкт-Петербург</addr-line>
          <country>Россия</country>
        </aff>
      </aff-alternatives>

      <pub-date date-type="pub" iso-8601-date="2024-04-30" publication-format="electronic">
        <day>30</day>
        <month>04</month>
        <year>2024</year>
      </pub-date>
      <volume>40</volume>
      <issue>2</issue>
      <fpage>255</fpage>
      <lpage>270</lpage>

      <history>
        <date date-type="received" iso-8601-date="2023-04-10">
          <day>10</day>
          <month>04</month>
          <year>2023</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2024-01-12">
          <day>12</day>
          <month>01</month>
          <year>2024</year>
        </date>
        <date date-type="accepted" iso-8601-date="2024-01-18">
          <day>18</day>
          <month>01</month>
          <year>2024</year>
        </date>
      </history>

      <permissions>
        <copyright-statement xml:lang="en">Copyright ©; 2024, Kapustina M.V., Zimin A.V.</copyright-statement>
        <copyright-statement xml:lang="ru">Copyright ©; 2024, Капустина М.В., Зимин А.В.</copyright-statement>
        <copyright-year>2024</copyright-year>
        <copyright-holder xml:lang="en">Kapustina M.V., Zimin A.V.</copyright-holder>
        <copyright-holder xml:lang="ru">Капустина М.В., Зимин А.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/2024/02/06/" xlink:title="Страница статьи">https://xn--c1agq7a.xn--p1ai/repository/issues/2024/02/06/</self-uri>
      
      <abstract xml:lang="en">
        <p><bold>Purpose.</bold> The study is purposed at obtaining the quantitative estimates of coastal upwelling influence on the distribution of chlorophyll a in the coastal zone of the southeastern Baltic Sea during the summer seasons in 2000–2019.</p>
        <p><bold>Methods and Results.</bold> Based on the data both on frequency and duration of upwelling events for June – August 2000–2019 and the chlorophyll a concentrations derived from multi-sensor satellite observations in the coastal zone of the southeastern Baltic Sea, the long-term and monthly average values of the studied parameters are obtained, and the influence of upwelling events on the chlorophyll a concentration in the sea surface layer is assessed. The spatial variability of chlorophyll a in the coastal areas is found to be related to the influence of upwelling events. On the average, the chlorophyll a concentration decreases by more than 1 mg/m<sup>3</sup> after an upwelling of any duration and in all summer months. The concentration drop is most significant after the upwelling events lasting more than 6 days.</p>
        <p><bold>Conclusions.</bold> The reduced chlorophyll a concentrations (as compared to the pre-upwelling values) are observed in course of a week after a coastal upwelling event in the southeastern Baltic Sea.</p>
      </abstract>
      
      <trans-abstract xml:lang="ru">
        <p><bold>Цель.</bold> Получение количественных оценок влияния апвеллинга на распределение хлорофилла а летом в прибрежной зоне Юго-Восточной Балтики в 2000–2019 гг. – цель настоящей работы.</p>
        <p><bold>Методы и результаты.</bold> По данным о повторяемости и продолжительности апвеллингов за июнь – август 2000–2019 гг. и мультисенсорных спутниковых наблюдений концентрации хлорофилла а в прибрежной зоне Юго-Восточной Балтики получены среднемноголетние и среднемесячные значения исследуемых параметров и оценено влияние событий подъема вод на концентрацию хлорофилла а в поверхностном слое моря. Показано влияние апвеллингов на пространственное распределение хлорофилла а в прибрежной зоне моря. Установлено, что снижение его концентрации более чем на 1 мг/м<sup>3</sup> наблюдается после подъема вод любой продолжительности и во все месяцы. Максимальные падения концентрации хлорофилла а отмечены после длительных апвеллингов продолжительностью &gt; 6 дней.</p>
        <p><bold>Выводы.</bold> В течение недели после апвеллинга летом в прибрежной зоне Юго-Восточной Балтики наблюдаются пониженные концентрации хлорофилла а по сравнению со значениями, предшествующими возникновению апвеллинга.</p>
      </trans-abstract>

      <kwd-group xml:lang="en">
        <kwd>sea surface temperature</kwd>
        <kwd>coastal upwelling</kwd>
        <kwd>chlorophyll a concentration</kwd>
        <kwd>remote sensing data</kwd>
        <kwd>southeastern Baltic Sea</kwd>
      </kwd-group>
      <kwd-group xml:lang="ru">
        <kwd>температура поверхности моря</kwd>
        <kwd>прибрежный апвеллинг</kwd>
        <kwd>концентрация хлорофилла а</kwd>
        <kwd>спутниковые данные</kwd>
        <kwd>Юго-Восточная Балтика</kwd>
      </kwd-group>

      <funding-group>
        <funding-statement xml:lang="en">The study was carried out within the framework of state assignment of IO RAS (theme No. FMWE-2024-0025).</funding-statement>
        <funding-statement xml:lang="ru">Работа выполнена в рамках госзадания ИО РАН (тема № FMWE-2024-0025).</funding-statement>
      </funding-group>
    </article-meta>
  </front>

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