| 大地形上空偶极子东移对热带气旋路径的影响 |
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| 作者姓名： | Chen Lianshou Luo Zhexian |
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| 作者单位： | Chen LianshouChinese Academy of Meteorological Sciences,Beijing 100081Luo ZhexianNanjing Institute of Meteorology,Nanjing 210044 |
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| 基金项目： | This paper is supported by " 973" heavy rainfall program and the National Natural Science Foundation of China under Grant Nos. 49775263 and 40175019. |
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| 摘 要： | With a quasi-geostrophic barotropic model on the β-plane with a topography term, 16 experiments were performed with an integration period of 6 days. The interaction between tropical cyclone tracks and 500 kin-scale vortices originating from the western part ora large-scale topography is investigated. It is suggested that this kind of interaction may have a significant impact on the moving speed and direction of tropical cyclones. Under certain conditions, this interaction may be a factor in causing an abnormal tropical cyclone track. Furthermore, the effect of large-scale topography plays an important role in the formation of unusual tropical cyclone tracks.
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| 关 键 词： | 大地形效应 偶极子涡旋 相互作用 热带气旋 路径 地形效应 |
| 收稿时间： | 10 October 2001 |
The impact of the eastward shifting of dipole systems over large-scale terrain on tropical cyclone tracks |
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| Chen Lianshou,Luo Zhexian.The impact of the eastward shifting of dipole systems over large-scale terrain on tropical cyclone tracks[J].Advances in Atmospheric Sciences,2002,19(6):1069-1078. |
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| Authors: | Chen Lianshou Luo Zhexian |
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| Institution: | Chinese Academy of Meteorological Sciences, Beijing 100081,Nanfing Institute of Meteorology, Nanjing 210044 |
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| Abstract: | With a quasi-geostrophic barotropic model on the β-plane with a topography term, 16 experiments were performed with an integration period of 6 days. The interaction between
tropical cyclone tracks and 500 km-scale vortices originating from the western part of a large-scale topography is investigated.
It is suggested that this kind of interaction may have a significant impact on the moving speed and direction of tropical
cyclones. Under certain conditions, this interaction may be a factor in causing an abnormal tropical cyclone track. Furthermore,
the effect of large-scale topography plays an important role in the formation of unusual tropical cyclone tracks. |
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| Keywords: | Tibetan Plateau dipole interaction tropical cyclone abnormal track topographic effect |
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