The Arctic Ocean Primary Production in Response to Amplification of Climate Change: Insights from 2003–2022 Satellite Data

IF 0.9 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES Izvestiya Atmospheric and Oceanic Physics Pub Date : 2024-02-20 DOI:10.1134/s0001433823120095

A. V. Frolova, E. A. Morozov, D. V. Pozdnyakov

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Abstract

Spaceborne merged multisensory OC CCI (ocean Colour Climate Initiative) data were employed to reveal changes in primary production (PP) in the Arctic Ocean (AO) from 2003 to 2022. The assessments were performed making use of the algorithm by Behrenfeld and Falkowski (1997) that assured, according to previous investigations, the coefficient of correlation between the retrieved and shipborne PP values equal to 0.8 and 0.75 for the deep and coastal ocean zones, respectively. The applied methodology of the satellite ocean color data processing permitted to account for the effect of cloud masking and determine the phytoplankton concentration within both overcast areas and coastal waters that are subject to significant influences of land- and river run-off. The results obtained indicate that since 2003 the PP over the entire AO has increased by +18.5%. This increase in PP was mostly due to the PP steady rise in the pelagic basin whereas within the AO coastal zone the PP level remained rather steady with only a slight negative tendency (–1.6%). In the marginal seas, the PP change proved to be differently directed, ranging between +32% (Laptev Sea) and –13.6% (Chukchi Sea) and exhibiting a rather low reliability of statistical characteristics. The observed two-decadal variations/tendencies of PP are discussed in light of the AO climate warming phenomenon.

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气候变化放大效应下的北冰洋初级生产：从 2003-2022 年卫星数据中获得的启示

摘要利用空间传播的合并多感官 OC CCI（海洋色彩气候倡议）数据来揭示 2003 年至 2022 年北冰洋初级生产（PP）的变化。评估是利用 Behrenfeld 和 Falkowski（1997 年）的算法进行的，根据以前的调查，在深海和沿岸海区，检索到的和船载的初级生产力值之间的相关系数分别为 0.8 和 0.75。采用卫星海洋颜色数据处理方法，可以考虑云层遮蔽的影响，并确定受陆地和河流径流重大影响的阴云区和沿岸水域的浮游植物浓度。结果表明，自 2003 年以来，整个 AO 的浮游植物浓度增加了 18.5%。在沿岸海域，PP 的变化主要是由于远洋海盆中的 PP 稳步上升，而澳大利亚沿岸海域的 PP 水平保持稳定，只有轻微的负增长趋势（-1.6%）。在边缘海，PP 的变化方向不同，在+32%(拉普捷夫海)和-13.6%(楚科奇海)之间，统计特征的可靠性较低。根据 AO 气候变暖现象，对观测到的 PP 的两个十年期变化/趋势进行了讨论。

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来源期刊

Izvestiya Atmospheric and Oceanic Physics 地学-海洋学

CiteScore

1.40

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Izvestiya, Atmospheric and Oceanic Physics is a journal that publishes original scientific research and review articles on vital issues in the physics of the Earth’s atmosphere and hydrosphere and climate theory. The journal presents results of recent studies of physical processes in the atmosphere and ocean that control climate, weather, and their changes. These studies have possible practical applications. The journal also gives room to the discussion of results obtained in theoretical and experimental studies in various fields of oceanic and atmospheric physics, such as the dynamics of gas and water media, interaction of the atmosphere with the ocean and land surfaces, turbulence theory, heat balance and radiation processes, remote sensing and optics of both media, natural and man-induced climate changes, and the state of the atmosphere and ocean. The journal publishes papers on research techniques used in both media, current scientific information on domestic and foreign events in the physics of the atmosphere and ocean.