hydrophysicsФундаментальная и прикладная гидрофизикаFundamental and Applied Hydrophysics2073-66732782-5221St. Petersburg Research Center of the Russian Academy of Sciences10.59887/fpg/rada-dxbz-35behydrophysics-1200Research ArticleГИДРОФИЗИЧЕСКИЕ И БИОГЕОХИМИЧЕСКИЕ ПОЛЯ И ПРОЦЕССЫHYDROPHYSICAL AND BIOGEOCHEMICAL FIELDS AND PROCESSESСпутниковое исследование феномена цветений E. huxleyi в Баренцевом, Норвежском и Гренландском морях в 2003–2021 гг.: временная динамика ареала цветений, продукции неорганического углерода и парциального давления СО2 в поверхностных водахSatellite Study of the E. huxleyi Phenomenon in the Barents, Norwegian, and Greenland Seas in 2003–2021: Temporal Dynamics of the Bloom Areal Extent, Inorganic Carbon Production and CО2 Partial Pressure in Surface Waterhttps://orcid.org/0000-0002-8064-7116ФроловаА. В.FrolovaA. V.

199034, Университетская наб., 7–9, Санкт-Петербург

199034, 14-я линия Васильевского острова, 7, Санкт-Петербург

FROLOVA Anastasiia Valeryevna

7–9 Universitetskaya Emb., St. Petersburg, 199034

14th Line 7, Vasilievsky Island, St. Petersburg, 199034

РИНЦ Author ID: 1124673, Scopus Author ID: 57210446164, WoS ResearcherID: ACE-4108–2022

st050263@student.spbu.ruhttps://orcid.org/0000-0003-0889-7855ПоздняковД. В.PozdnyakovD. V.

199034, Университетская наб., 7–9, Санкт-Петербург

199034, 14-я линия Васильевского острова, 7, Санкт-Петербург

POZDNYAKOV Dmitry Victorovich

РИНЦ Author ID: 179336

Scopus Author ID: 56370460300

7–9 Universitetskaya Emb., St. Petersburg, 199034

14th Line 7, Vasilievsky Island, St. Petersburg, 199034

dmitry.pozdnyakov@niersc.spb.ruМорозовЕ. А.MorozovE. A.

299011, Капитанская ул., 2, Севастополь

MOROZOV Evgeny Aleksandrovich

РИНЦ Author ID: 1115348, Scopus Author ID: 57193680029, WoS ResearcherID: F-9030–2017

 2, Sevastopol, 299011

Санкт-Петербургский государственный университет; Научный Фонд «Международный центр по окружающей среде и дистанционному зондированию имени Нансена»РоссияSt. Petersburg State University; Nansen International Environmental and Remote Sensing CentreRussian FederationМорской гидрофизический институтРоссияMarine Hydrophysical InstituteRussian Federation20232304202316148–62Copyright © Фролова А.В., Поздняков Д.В., Морозов Е.А., 20232023Фролова А.В., Поздняков Д.В., Морозов Е.А.Frolova A.V., Pozdnyakov D.V., Morozov E.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://hydrophysics.spbrc.ru/jour/article/view/1200

На основе спутниковых данных проведен анализ цветения E. huxleyi: количественная оценка продукции взвешенного неорганического углерода (PIC) и увеличения парциального давления CO2, (pCO2) в поверхностных водах. Временные ряды этих переменных были получены для Норвежского, Гренландского и Баренцева морей за 18-летний период (2003–2021 гг.). Площади цветения в североатлантических и арктических водах наименьшие в Гренландском море — от 10x103 км2 до (20–40)x103 км2. В Норвежском и Баренцевом морях они достигают в некоторые годы (60– 80)x103 км2 и (500–600)x103 км2, соответственно. Общее содержание PIC в цветении E. huxleyi редко превышает 12–14 килотонн и 40 килотонн в Гренландском и Норвежском морях, соответственно. В Баренцевом море в некоторые годы оно может достигать 550 килотонн. Наибольшее значение pCO2 во время цветения E. huxleyi в поверхностных водах Баренцева моря составило ~350 мкатм. В Норвежском море pCO2 в поверхностных водах в пределах цветения E. huxleyi также было близко к 350 мкатм, но чаще оставалось около 250 мкатм. В Гренландском море было только четыре года относительно повышенного pCO2 (до 250 мкатм), в остальное время он оставался ниже уровня уверенного определения нашим методом. Поскольку цветения E. huxleyi обычно очень обширны, происходят по всему Мировому океану (и, следовательно, в совокупности происходят круглый год), это явление потенциально может как снизить до некоторой степени роль Мирового океана как поглотителя атмосферного CO2, так и повлиять на карбонатный насос. 

Based on satellite data, E. huxleyi bloom contouring, quantification of particulate inorganic carbon (PIC) production and increment of CO2 partial pressure, (pCO2) in surface water were performed. 18-year (2003–2021) time series of these variables are obtained for the Norwegian, Greenland and Barents seas. The bloom areas in the North Atlantic–Arctic water are the lowest in the Greenland Sea varying from 10×103 km2 to (20–40)×103 km2. In the Norwegian and Barents Seas they reach in some years (60–80)×103 km2 and (500–600)×103 km2, respectively. The total PIC content within E. huxleyi blooms rarely exceeds in the Greenland and Norwegian seas 12–14 kilotons and 40 kilotons, respectively. In the Barents Sea, in some years, it can be up to 550 kilotons. The highest level of pCO2 within E. huxleyi blooms in surface waters in the Barents Sea was ~350 µatm. In the Norwegian Sea, pCO2 in surface waters within the E. huxleyi bloom was also close to 350 µatm, but most often it remained about 250 µatm. In the Greenland Sea there were only four years of relatively enhanced pCO2 (up to 250 µatm), otherwise remaining below the level of confident determination by our method. As E. huxleyi blooms are generally very extensive, occur throughout the entire World Oceans (and hence in sum occur all year around), this phenomenon has a potential to both decrease to some degree the role of the World Oceans as sinkers of atmospheric CO2, and affect the carbonate counter pump.

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The authors declare that there are no conflicts of interest present.