V.M. Egorova, V.N. Zyryanov, M.A. Sokolovskiy. The hydrodynamic theory of the Cyprus Eddy. Ocean Dynamics, 2022, vol. 72, № 1 pp. 1-20


An analytical solution to the problem of the Cyprus warm core Eddy generation over the bottom topography non-axisymmetric perturbations in the broad area of the Eratosthenes seamount in the Levantine Basin is obtained. The solution is based on the application of barotropic and baroclinic ocean approximations, with a lateral eastward flow. The obtained results demonstrate the generation of a dipolar vortex structure over the complicated topography of the Eratosthenes seamount broad area with the generation of the anticyclonic Cyprus Eddy and, at its northwest periphery, of an additional cyclonic eddy which is periodically observed from satellites remote sensing SST. The seasonal vertical stratification appears to be responsible for the generation and evolution of the examined mesoscale eddies. The eddies are truncated Taylor-Hogg cones, tapering towards the sea surface. In this configuration, the cones axes may significantly tilt. Moreover, the water movement within the eddies generated by the dipolar topographic system is examined based on the eddies helicity. The cold waters nature of the cyclonic eddy is explained by the formation of upwelling regions, while on the contrary, the warm waters nature of the main anticyclonic eddy is explained by the downwelling of warm surface waters surrounding the Cyprus Eddy. Finally, the Contour Dynamics Method (CDM) is applied to analyze the interaction of the Cyprus Eddy with vortex patches.

Дата публикации: 2022

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