| 澳洲北部强/弱越赤道气流对应的环流配置 |
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| 引用本文： | 刘向文,孙照渤,李维京,等.澳洲北部强/弱越赤道气流对应的环流配置[J].大气科学,2009,33(6):1348-1362. |
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| 作者姓名： | 刘向文 孙照渤 李维京 等 |
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| 作者单位： | 1.国家气候中心 中国气象局气候研究开放实验室,北京,100081;南京信息工程大学 江苏省气象灾害重点实验室,南京,210044 |
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| 基金项目： | 国家重点基础研究发展计划项目，国家自然科学基金基金项目:40775059 |
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| 摘 要： | 采用1980～2004年的NCEP/NCAR再分析资料， 挑选5～8月中澳洲北部越赤道气流的极强和极弱年作为典型样本，探讨了强/弱越赤道气流对应的环流系统的配置特征。结果表明: 强越赤道气流通常对应北半球辐合带维持较强， 或南半球澳高维持较强，亦或澳洲冷空气活动频繁发生的环流形势， 同期西太平洋副高通常偏东或偏北； 弱越赤道气流通常对应西太平洋副高的偏西或偏南， 或者是西太平洋副高－辐合带共同演进过程的多次发生。
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| 关 键 词： | 越赤道气流 澳高 澳洲冷空气活动 辐合带 西太平洋副高 |
The Circulation Configuration of Strong/Weak Cross-Equatorial Flow to the North of Australia |
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| LIU Xiangwen,SUN Zhaobo,LI Weijing and et al.The Circulation Configuration of Strong/Weak Cross-Equatorial Flow to the North of Australia[J].Chinese Journal of Atmospheric Sciences,2009,33(6):1348-1362. |
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| Authors: | LIU Xiangwen SUN Zhaobo LI Weijing and |
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| Institution: | 1.Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing, 100081;Jiangsu Key Laboratory of Meteorological Disaster, Nanjing University of Information & Technology, Nanjing,2100442.Jiangsu Key Laboratory of Meteorological Disaster, Nanjing University of Information & Technology, Nanjing,2100443.Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing, 100081 |
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| Abstract: | Using the NCEP/NCAR reanalysis data during 1980-2004, The authors choose the strong and weak ex-trema of cross-equatorial flow (CEF) during May to August as typical samples, and then analyze the circulation con-figuration of strong/weak CEF to the north of Australia. The results show that the strong CEF always corresponds to the strong convergence zone in the Northern Hemisphere, or strong Australia high in the Southern Hemisphere, or frequent Australian cold air activities, and it also corresponds to the circulation situation that the location of the western Pacific subtropical high (WPSH) is more eastward or northward than normal; the weak CEF always corre-sponds to the circulation situation that the location of the WPSH is more westward or southward than normal, or the frequent occurrence of conjunct evolution processes of the WPSH and the convergence zone. |
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| Keywords: | cross-equatorial flow (CEF) Australia high Australian cold air activity convergence zone the west-ern Pacific subtropical high (WPSH) |
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