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大地形上空偶极子东移对热带气旋路径的影响
引用本文:Chen Lianshou,Luo Zhexian. 大地形上空偶极子东移对热带气旋路径的影响[J]. 大气科学进展, 2002, 19(6): 1069-1078. DOI: 10.1007/s00376-002-0065-1
作者姓名:Chen Lianshou  Luo Zhexian
作者单位:Chen LianshouChinese Academy of Meteorological Sciences,Beijing 100081Luo ZhexianNanjing Institute of Meteorology,Nanjing 210044
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.
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.

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:2001-10-10

The impact of the eastward shifting of dipole systems over large-scale terrain on tropical cyclone tracks
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. DOI: 10.1007/s00376-002-0065-1
Authors:Chen Lianshou  Luo Zhexian
Affiliation:Chinese Academy of Meteorological Sciences, Beijing 100081,Nanfing Institute of Meteorology, Nanjing 210044
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.
Keywords:Tibetan Plateau   dipole   interaction   tropical cyclone   abnormal track   topographic effect
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