| A STUDY ON TYPHOON MOVEMENT PART Ⅲ:EFFECT OF THE HORIZONTAL MOMENTUM EXCHANGE BETWEEN TYPHOONS AND ENVIRONMENT |
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| 引用本文： | 贺海晏,董惠菁.A STUDY ON TYPHOON MOVEMENT PART Ⅲ:EFFECT OF THE HORIZONTAL MOMENTUM EXCHANGE BETWEEN TYPHOONS AND ENVIRONMENT[J].热带气象学报(英文版),1997,3(1):1-10. |
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| 作者姓名： | 贺海晏 董惠菁 |
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| 作者单位： | Department of Atmospheric Sciences, Zhong shan Universitg, Guang zhou, 510275;Forecast Office of Guangxi Weather Services, Nanning, 530000 |
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| 摘 要： | Two semi-asymmetric flow patterns of typhoons are chosen to qualitatively determine the effect of exchange of horizontal momentum between inflow and outflow layers and the environment on the motion of typhoons. The results show that only the asymmetric flow component (residual after azimuthal mean flow has been removed) could cause a net momentum input into or output from a typhoon and therefore contribute to the changes in speed and direction of the typhoon movement. A typhoon with major inflow and/or outflow channels on its right (left) side would tend to accelerate and turn left (decelerate and turn right); On the other hand, a typhoon with major inflow and/or outflow channels in the rear (front) semicircle would tend to accelerate and turn right (decelerate and turn left).
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| 关 键 词： | typhoon movement horizontal momentum exchange semi-asymmetric typhoon |
| 收稿时间： | 1994/7/27 0:00:00 |
| 修稿时间： | 1994/11/23 0:00:00 |
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