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Abstract:
With conditions of approximately actual background wind field in typhoons and a barotropic nondivergent model in a cylindrical coordinate, the problem of instability of the perturbation in typhoons isdiscussed. The results show that the warm core structure of typhoons and the activity of fanly strongcold air in the periphery are advantageous to the perturbation development in typhoons,and the strongerthe typhoons, i. e. the lower the pressure, the caster the perturbation in typhoons would develop.
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