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Peculiarities of Formation of the Density Field in Mesoscale Eddies of the Lofoten Basin: Part 2

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Abstract—

This paper continues the studies of the authors of the Brunt–Väisälä (BV) frequency changes caused by mesoscale eddies of various polarities. In Part 1, we discussed the theoretical conclusions, whereas Part 2 provides the interpretation of these results on the basis of natural data. The studied region is the Lofoten Basin of the Norwegian Sea. The analysis considers the data of GLORYS12V1 oceanic reanalysis at June 10, 2010. Two eddies are considered: a quasi-permanent anticyclone, Lofoten eddy (LE), located in the center of the basin and a cyclone located southeast of LE. The mathematical formulas are verified, the characteristics of eddies are calculated, and the profiles and vertical sections of potential vorticity and BV frequency are studied. Combined analysis of natural and theoretical material results in indirect estimation of eddies, which cannot be directly measured and modeled.

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ACKNOWLEDGMENTS

We are grateful to members of the Scientific Council of the Institute of Oceanology, Russian Academy of Sciences for discussion of this work.

Funding

This work was supported by the Russian Science Foundation (project no. 22-27-00004) and state contract no. 0128-2021-0002.

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Authors and Affiliations

  1. St. Petersburg State University, St. Petersburg, Russia

    V. V. Zhmur, E. V. Novoselova & T. V. Belonenko

  2. Shirshov Institute of Oceanology, Russian Academy of Sciences, 117218, Moscow, Russia

    V. V. Zhmur

Authors
  1. V. V. Zhmur
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  2. E. V. Novoselova
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  3. T. V. Belonenko
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Corresponding author

Correspondence to E. V. Novoselova.

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Translated by I. Melekestseva

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Zhmur, V.V., Novoselova, E.V. & Belonenko, T.V. Peculiarities of Formation of the Density Field in Mesoscale Eddies of the Lofoten Basin: Part 2. Oceanology 62, 289–302 (2022). https://doi.org/10.1134/S0001437022030171

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