M.A. Sokolovskiy, J. Verron, X.J. Carton. The formation of new quasi-stationary vortex patterns from the interaction of two identical vortices in a rotating fluid. Ocean Dynamics, 2018, v. 68, N 6, pp. 723-733.
Within the framework of the quasi-geostrophic approximation, the interactions of two identical initially circular vortex patches are studied using the contour dynamics/surgery method. The cases of barotropic vortices and of vortices in the upper layer of a two-layer fluid are considered. Diagrams showing the end states of vortex interactions and, in particular, the new regime of vortex triplet formation are constructed for a wide range of external parameters. This paper shows that, in the nonlinear evolution of two such (like-signed) vortices, the filaments and vorticity fragments surrounding the merged vortex often collapse into satellite vortices. Therefore, the conditions for the formation and the quasi-steady motions of a new type of triplet-shaped vortex structure are obtained.
2019M. Morvan, P. L’Hégare, X. Carton, J. Gula, C. Vic, M. Sokolovskiy, K. Koshel. The life cycle of submesoscale eddies generated by topographic interactions. Ocean Science, 2019, v.15, N 6, pp. 1531-1543
2019Grigoryeva I. L., Komissarov A. B., Kuzovlev V. V., Lapina E.E., Chekmareva E. A. Features of the Winter Hydrochemical Regime of the Upper Volga Reservoirs // IOP Conference Series: Earth and Environmental Science. IOP Publishing Ltd. 2019