| Niu Xuexin. 1990. The effect of unstable inertia-gravity wave on the occurrence and the development of typhoon and tropical cyclone. Acta Oceanologica Sinica, (4):539－546 |
| The effect of unstable inertia-gravity wave on the occurrence and the development of typhoon and tropical cyclone |
| The effect of unstable inertia-gravity wave on the occurrence and the development of typhoon and tropical cyclone |
| Received:April 15, 1989 Revised:November 17, 1989 |
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| Abstract: |
| In this paper,the analysis of the occurrence and the development of typhoon and tropical cyclone is made with the unstable theory of wave. The result indicates that the primary wave is the unstable inertia-gravity wave in the process of the occurrence and the development of typhoon and tropical cyclone:The existence of the deep moist layer and the heating by moisture condensation can impel and intensify the unstability of the wave and is favourable for the reduction of the wave energy dispersion, therefore, it is good for the formation and the development of typhoon and tropical cyclone, and also can slow down the wave speed. Besides, the condition that the change of the specific volume of the basic state with pressure is less than that of adiabatic state may also lead to the wave unstability, thus may have certain effect on the occurrence and the development of typhoon and tropical cyclone. |
| 中文摘要: |
| In this paper,the analysis of the occurrence and the development of typhoon and tropical cyclone is made with the unstable theory of wave. The result indicates that the primary wave is the unstable inertia-gravity wave in the process of the occurrence and the development of typhoon and tropical cyclone:The existence of the deep moist layer and the heating by moisture condensation can impel and intensify the unstability of the wave and is favourable for the reduction of the wave energy dispersion, therefore, it is good for the formation and the development of typhoon and tropical cyclone, and also can slow down the wave speed. Besides, the condition that the change of the specific volume of the basic state with pressure is less than that of adiabatic state may also lead to the wave unstability, thus may have certain effect on the occurrence and the development of typhoon and tropical cyclone. |
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