| 台风异常运动及其外区热力不稳定非对称结构的影响效应 |
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| 引用本文： | 陈联寿,徐祥德,解以扬,李文弘.台风异常运动及其外区热力不稳定非对称结构的影响效应[J].大气科学,1997,21(1):83-90. |
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| 作者姓名： | 陈联寿 徐祥德 解以扬 李文弘 |
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| 作者单位： | 1.中国气象科学研究院,北京 100081 |
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| 摘 要： | 本文数值模拟研究揭示了台风外区热力不稳定非对称结构对其异常路径的影响问题，提出了台风运动非对称结构的影响，不仅表现在台风涡旋动力结构特征上，而且反映在台风外区三维非对称热力结构特点方面，即包括温、湿不稳定层结分布特征及其强弱程度因素。台风外区不同热力非对称分布特征将导致台风移动轨迹的显著差异，且构成各类“旋转”、“打转”、“转向”等复杂异常路径。
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| 关 键 词： | 热带气旋 热力不稳定 非对称结构 |
The Effect of Tropical Cyclone Asymmetric Thermodynamic Structure on Its Unusual Motion |
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| Chen Lianshou,Xu Xiangde,Xie Yiyang and Li Wenhong.The Effect of Tropical Cyclone Asymmetric Thermodynamic Structure on Its Unusual Motion[J].Chinese Journal of Atmospheric Sciences,1997,21(1):83-90. |
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| Authors: | Chen Lianshou Xu Xiangde Xie Yiyang and Li Wenhong |
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| Abstract: | The tropical cyclone (TC) asymmetric thermodynamic structure of unstable stratification in TC outer region and its effect on tropical cyclone unusual motion have been investigated. Studies show that the tropical cyclone asymmetric feature exists not only in its dynamic structure but also in its three dimensional thermodynamic structure which includes temperture and humidity unstable stratification and their intensities. Difference in the asymmetirc thermodynamic structure in the outer region of a tropical cyclone can cause different tropical cyclone motion, even lead to phenomena such as the meandering, looping and recurving of tropical cyclones. |
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| Keywords: | tropical cyclone thermodynamic unstability asymmetric structure |
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