| 热带气旋运动曲率的数学模型与路径异常的月尖突变判据 |
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| 引用本文： | 徐祥德,解以扬.热带气旋运动曲率的数学模型与路径异常的月尖突变判据[J].热带气象学报,1993,9(4):308-316. |
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| 作者姓名： | 徐祥德 解以扬 |
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| 作者单位： | 中国气象科学研究院，天津市气象台 北京100081 |
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| 摘 要： | 采用运动曲率数学模型，研究热带气旋异常路径的成因，得到的主要结果是：热带气旋路径曲率及其变化与科氏力参数、环境场气压分布、热带气旋的移速及涡旋动力结构、下垫面摩擦力等因子有关；当各类影响因子渐变至满足月尖突变判据时，出现演变曲线的折叠区，随着外源参数变化，一旦解移出折叠区，热带气旋便可发生移间突变，出现各类异常轨迹。
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| 关 键 词： | 曲率 热带气旋 路径 月尖突变 |
| 收稿时间： | 1992/12/11 0:00:00 |
| 修稿时间： | 1993/4/23 0:00:00 |
THE MATHEMATICAL MODEL OF MOTION CURVATURE OF TROPICAL CYCLONE (TC) AND THE SUDDEN CHANGE CRITERION OF THE CRESCENT POINT FORM OF TC ANOMALOUS TRACK |
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| Xu Xiangde and Xie Yiyang.THE MATHEMATICAL MODEL OF MOTION CURVATURE OF TROPICAL CYCLONE (TC) AND THE SUDDEN CHANGE CRITERION OF THE CRESCENT POINT FORM OF TC ANOMALOUS TRACK[J].Journal of Tropical Meteorology,1993,9(4):308-316. |
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| Authors: | Xu Xiangde and Xie Yiyang |
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| Institution: | Acoiemy of Meteorology Science, Beijing, 100081;Tianjin Meteorology Observatory |
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| Abstract: | The effects and causes of abnormal tracks of tropical cyclones are studied using the mathematical model of motion curvature . It is found that the changes in curvature of the
tropical cyclone tracks are related with Coriolis parameter, ambient pressure |
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| Keywords: | Correlation curvature formula Tropical cyclone Anomaly track Mathematical model Cusp Catastrophe |
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