Interesting cases of the interaction between a pair of tropical cyclones and the polar front |
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| Authors: | A E Pokhil |
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| Institution: | 1. Hydrometeorological Research Center of the Russian Federation, Bolshoi Predtechenskii per. 9-13, Moscow, 123242, Russia
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| Abstract: | Studied is the evolution of the family of tropical cyclones in the Pacific Ocean in 2009. Analyzed is an unusual behavior of real simultaneously existing tropical cyclones (TCs). Investigated is a mechanism of the interaction between a pair of tropical cyclones of various intensities. Considered are the cases of triple interaction between a pair of TCs and the polar front, as well as the transformation and regeneration of TCs due to their entry to the cold front area. The dynamics of groups of real tropical cyclones is compared with the behavior of ideal cyclonic vortices in the experiments with the numerical model. Proposed are the variants of explaining the disappearance and formation of vortices, as well as of loops, zigzags, and sharp turns during their movement. |
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