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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">10.59887/fpg/9rxr-badt-2vde</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-722</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>Распределение содержания хлорофилла-а в Атлантическом океане в декабре 2019 г — январе 2020 г. по данным судовых измерений при различных гидрометеорологических условиях</article-title><trans-title-group xml:lang="en"><trans-title>The Chlorophyll-a Content Distribution in the Atlantic Ocean in December 2019 — January 2020 according to Ship Measurements at the Different Hydrometeorological Conditions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5989-8300</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Штрайхерт</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shtraikhert</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Штрайхерт Елена Аркадьевна. Кандидат географических наук, старший научный сотрудник</p><p>elibrary AuthorID: 182571</p><p>690041, ул. Балтийская, д. 43, г. Владивосток</p></bio><bio xml:lang="en"><p>690041, Baltiyskaya Str., 43, Vladivostok</p></bio><email xlink:type="simple">straj@poi.dvo.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/0000-0002-3425-4813</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захарков</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharkov</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Захарков Сергей Петрович. Кандидат биологических наук, ведущий научный сотрудник, доцент</p><p>elibrary AuthorID: 59154</p><p>690041, ул. Балтийская, д. 43, г. Владивосток</p></bio><bio xml:lang="en"><p>690041, Baltiyskaya Str., 43, Vladivostok</p></bio><email xlink:type="simple">zakharkov@poi.dvo.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/0000-0002-3224-710X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Салюк</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Salyuk</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Салюк Павел Анатольевич. Кандидат физико-математических наук, заведующий лабораторией</p><p>elibrary AuthorID: 155615</p><p>690041, ул. Балтийская, д. 43, г. Владивосток</p></bio><bio xml:lang="en"><p>690041, Baltiyskaya Str., 43, Vladivostok</p></bio><email xlink:type="simple">pavel.salyuk@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0501-460X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пономарев</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ponomarev</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пономарев Владимир Иванович. Кандидат физико-математических наук, ведущий научный сотрудник</p><p>elibrary AuthorID: 15842</p><p>690041, ул. Балтийская, д. 43, г. Владивосток</p></bio><bio xml:lang="en"><p>690041, Baltiyskaya Str., 43, Vladivostok</p></bio><email xlink:type="simple">pvi711@yandex.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>Артемьев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Artemiev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артемьев Владимир Александрович. Старший научный сотрудник</p><p>elibrary AuthorID: 611644</p><p>117997, Нахимовский пр., д. 36, г. Москва</p></bio><bio xml:lang="en"><p>117997, Nahimovsky Pr., 36, Moscow</p></bio><email xlink:type="simple">artemiev195@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5641-4227</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глуховец</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Glukhovets</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Глуховец Дмитрий Ильич. Кандидат физико-математических наук, заведующий лабораторией</p><p>elibrary AuthorID: 924346</p><p>117997, Нахимовский пр., д. 36, г. Москва</p><p>141700, Институтский переулок, д. 9, г. Долгопрудный</p></bio><bio xml:lang="en"><p>117997, Nahimovsky Pr., 36, Moscow</p><p>Institutskiy Per., 9, Dolgoprudny, Moscow Region</p></bio><email xlink:type="simple">glukhovets@ocean.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3412-7339</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Латушкин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Latushkin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Латушкин Александр Александрович. Младший научный сотрудник</p><p>elibrary AuthorID: 854632</p><p>299011, Капитанская ул., д. 2, г. Севастополь</p></bio><bio xml:lang="en"><p>299011, Kapitanskaya Str., 2, Sevastopol</p></bio><email xlink:type="simple">sevsalat@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Тихоокеанский океанологический институт им. В.И. Ильичева ДВО РАН<country>Россия</country></aff><aff xml:lang="en">V.I. Ilichev Pacific Oceanological Institute, FEB RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт океанологии им. П.П. Ширшова РАН<country>Россия</country></aff><aff xml:lang="en">Shirshov Institute of Oceanology RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Институт океанологии им. П.П. Ширшова РАН; Московский физико-технический институт<country>Россия</country></aff><aff xml:lang="en">Shirshov Institute of Oceanology RAS; Moscow Institute of Physics and Technology<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Морской гидрофизический институт РАН<country>Россия</country></aff><aff xml:lang="en">Marine Hydrophysical Institute, Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>10</day><month>10</month><year>2022</year></pub-date><volume>15</volume><issue>3</issue><elocation-id>97–113</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Штрайхерт Е.А., Захарков С.П., Салюк П.А., Пономарев В.И., Артемьев В.А., Глуховец Д.И., Латушкин А.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Штрайхерт Е.А., Захарков С.П., Салюк П.А., Пономарев В.И., Артемьев В.А., Глуховец Д.И., Латушкин А.А.</copyright-holder><copyright-holder xml:lang="en">Shtraikhert E.A., Zakharkov S.P., Salyuk P.A., Ponomarev V.I., Artemiev V.A., Glukhovets D.I., Latushkin A.A.</copyright-holder><license 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/722">https://hydrophysics.spbrc.ru/jour/article/view/722</self-uri><abstract><p>Получены горизонтальные и вертикальные распределения концентрации хлорофилла-а (Кхл) по маршруту 79-го рейса НИС «Академик Мстислав Келдыш» в Атлантическом океане в декабре 2019—январе 2020 г. Анализ данных наблюдений проводился для биогеохимических провинций, определяемых различными гидрометеорологическими условиями, при которых развивались фитопланктонные сообщества.</p><p>Применялось три метода измерений Кхл: стандартный экстрактный метод на пробах морской воды, флуориметрические измерения в проточной системе на ходу судна на глубине 5 м и погружные флуориметрические in-situ измерения на станциях. Использовались измерения температуры и солености морской воды в проточной системе, CTD зондирования и буёв АРГО, а также данные измерений оптического зонда.</p><p>Наибольшие значения Кхл в приповерхностном слое океана наблюдаются в зонах дивергенции, в системах Канарского апвеллинга (CNRY) (1,3 мг/м3) и Фолклендского (Мальвинского) течения (4,8 мг/м3), а также в проливе Дрейка (1,2 мг/м3). Наименьшие значения Кхл (0,01–0,12 мг/м3) наблюдаются в тропических, экваториальных районах и в Южно-Атлантическом субтропическом антициклоническом круговороте (SASTG) по маршруту судна.</p><p>Обнаружены вертикальные профили Кхл с отсутствующим выраженным максимумом Кхл. В районе CNRY значение Кхл мало изменялось с глубиной во всей эвфотической зоне. А в районе Антарктического циркумполярного течения в проливе Дрейка и в основной струе Фолклендского течения наблюдались квазиоднородные профили Кхл до глубины почти в 2 раза превышающей глубину эвфотической зоны.</p><p>В профилях с выраженным локальным максимумом Кхл наибольшее значение 3,5 мг/м3 наблюдается на глубине около 12 м в районе апвеллинга на Патагонском шельфе. В других районах глубина залегания максимума Кхл (0,2– 0,9 мг/м3) варьируется в широких пределах от 25 до 120 м. В западной части района SASTG обнаружены абсолютные максимумы Кхл на глубине 120 м, что ниже эвфотической зоны до 100 м.</p></abstract><trans-abstract xml:lang="en"><p>The horizontal and vertical chlorophyll-a concentrations (Chl) distributions along the ship route of 79th cruise of R/V “Akademik Mstislav Keldysh” in the Atlantic Ocean in December 2019—January 2020 were obtained. Analysis of the observations was conducted for the biogeochemical provinces which were determined by means of the different hydrometeorological conditions for the phytoplankton community functioning.</p><p>Three methods of Chl measurements were applied: standard extraction method of the seawater samples, the fluorometer underway measurements in the flow-through water system at the depth of 5 m and in-situ profiling fluorometer measurements at stations. Also, measurements of the seawater temperature and salinity in the flow-through water system, the CTD and optical profiling, and ARGO floats were used.</p><p>The maximum Chl values in the near-surface ocean layer are observed at zones of divergence in the Canary upwelling systems (CNRY) (1.3 mg/m3) and in the Falkland (Malvinas) Current system (4.8 mg/m3), and also in the Drake Strait (1.2 mg/m3). The least Chl values (0.01–0.12 mg/m3) are observed in the tropical, equatorial areas and in the South Atlantic Subtropical Anticyclonic Gyre (SASTG) at the ship route.</p><p>Vertical Chl profiles with absence of the significant Chl maximum were found. In the CNRY region the Chl values were not changed much within the euphotic zone. While in the region of the Antarctic Circumpolar Current in the Drake Strait and in the offshore stream of the Falkland Current the quasi-homogeneous Chl profiles were observed in the upper layer which is almost 2 times deeper than the euphotic zone.</p><p>In the profiles with the significant local Chl maximum the most Chl value of 3.5 mg/m3 is observed at the depth about 12 m in the upwelling region on the Patagonian Shelf. In other regions the depth of Chl maximum localization (0.2–0.9 mg/m3) varies widely from 25 to 120 m. In the western part of the SASTG region the absolute Chl maxima were found at the depth of 120 m, that is deeper, then the euphotic zone which is equal to 100 m.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>концентрация хлорофилла-а</kwd><kwd>температура</kwd><kwd>солёность</kwd><kwd>течения</kwd><kwd>вертикальная стратификация</kwd><kwd>эвфотическая зона</kwd><kwd>буи АРГО</kwd><kwd>климатические зоны</kwd><kwd>биогеохимические провинции</kwd><kwd>Атлантический океан</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chlorophyll-a concentration</kwd><kwd>temperature</kwd><kwd>salinity</kwd><kwd>currents</kwd><kwd>vertical stratification</kwd><kwd>euphotic zone</kwd><kwd>ARGO floats</kwd><kwd>climatic zones</kwd><kwd>biogeochemical provinces</kwd><kwd>Atlantic Ocean</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследования субантарктических и антарктических районов Атлантического океана выполнены в рамках госбюджетной темы № 0211-2019-0005 (ТОИ ДВО РАН), анализ распределений содержания хлорофилла-а по теме № 0211-2021-0005 (ТОИ ДВО РАН), обработка и анализ флуоресцентных измерений по темам № 0211-2021-0007 (ТОИ ДВО РАН), № 0555-2019-0003 (МГИ РАН), определение глубины эвфотической зоны по теме № 0128-2021-0001 (ИО РАН). Обработка данных буев АРГО осуществлена при поддержке гранта Российского научного фонда (проект № 21-77-10059). Грант предоставлен через Институт океанологии им. П.П. Ширшова РАН.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>Studies of Subantarctic and Antarctic Regions of the Atlantic Ocean were carried out within the framework of the state budget theme No. 0211-2019-0005 (POI FEB RAS), analysis of the distribution of the content of chlorophyll-a — theme No. 0211-2021-0005 (POI FEB RAS), processing and analysis of fluorescence measurements – theme No. 0211-2021-0007 (POI FEB RAS), No. 0555-2019-0003 (MHI RAS), determination of the euphotic zone on theme No. 0128-2021-0001 (IO RAS). Data processing of ARGO buoys was supported by a grant of Russian Science Foundation (project No. 21-77-10059). 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