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Intensification of Eastern Boundary Upwelling Systems in the Atlantic and Pacific Oceans

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Abstract

Based on satellite data on sea surface temperature (1985–2018) and surface wind (1992–2017), the parameters of low-frequency variability are calculated and analyzed for the intensity of the Canary, Benguela, Californian, Peruvian, and Chilean upwellings. It is shown that all the analyzed large-scale wind-driven upwellings have intensified in the recent 30 years. The main contribution to this intensification is made by the strengthening of offshore wind. An exception is the Peruvian upwelling, where a trend caused by the wind stress curl intensification prevails.

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ACKNOWLEDGMENTS

The authors thank an anonymous reviewer for the friendly review and constructive comments.

Funding

The research was performed in the framework of the State Assignment theme 0012-2019-0002 (“Fundamental Studies of Processes in the Climate System, Which Define the Global and Regional Spatiotemporal Variability of the Environment”).

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Authors and Affiliations

  1. Institute of Natural and Technical Systems, 299011, Sevastopol, Russia

    A. B. Polonskii & A. N. Serebrennikov

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  1. A. B. Polonskii
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  2. A. N. Serebrennikov
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Correspondence to A. B. Polonskii.

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Russian Text ©The Author(s), 2020, published in Meteorologiya i Gidrologiya, 2020, No. 5, pp. 86–95.

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Polonskii, A.B., Serebrennikov, A.N. Intensification of Eastern Boundary Upwelling Systems in the Atlantic and Pacific Oceans . Russ. Meteorol. Hydrol. 45, 422–429 (2020). https://doi.org/10.3103/S1068373920060059

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