| 一次黄渤海入海气旋强烈发展的诊断分析 |
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| 引用本文： | 尹尽勇,曹越男,赵 伟,黄奕武. 一次黄渤海入海气旋强烈发展的诊断分析[J]. 气象, 2011, 37(12): 1526-1533 |
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| 作者姓名： | 尹尽勇 曹越男 赵 伟 黄奕武 |
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| 作者单位： | 国家气象中心,北京,100081 |
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| 基金项目： | 行业专项“黄渤海高影响天气预报中的关键技术研究”（GYHY201106006）资助 |
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| 摘 要： | 针对2007年3月造成黄渤海地区特大风暴潮的一次人海气旋发生与发展过程,采用NCEP资料并利用涡度倾向方程对其进行诊断分析与研究。结果表明,气旋的发展过程主要分为三个阶段：初期的气旋发展由低层开始,对流层低层具有明显的锋区和斜压性;当气旋入海时,高空槽移动到低层低值系统之上,涡度平流加强,高低层涡度平流差异成为气旋快速发展的主要动力;气旋发展的第三阶段是南北两支西风槽合并加强,使对流层中层的气旋性涡度增加,导致对流层中下层垂直上升运动增强,潜热释放增强,气旋发展达到最强。
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| 关 键 词： | 诊断分析 气旋 槽合并 |
| 收稿时间： | 2011-02-21 |
| 修稿时间： | 2011-05-10 |
A Diagnostic Study of an Intense Developing Extratropical Cyclone over the Bohai and Yellow Sea |
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| Yin Jinyong,Cao Yuenan,Zhao Wei and Huang Yiwu. A Diagnostic Study of an Intense Developing Extratropical Cyclone over the Bohai and Yellow Sea[J]. Meteorological Monthly, 2011, 37(12): 1526-1533 |
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| Authors: | Yin Jinyong Cao Yuenan Zhao Wei Huang Yiwu |
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| Affiliation: | National Meteorological Centre, Beijing 100081;National Meteorological Centre, Beijing 100081;National Meteorological Centre, Beijing 100081;National Meteorological Centre, Beijing 100081 |
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| Abstract: | This paper presents a diagnosis of an intense developing extratropical cyclone that occurred in conjunction with a 500 hPa trough merger over the Bohai and Yellow Sea in March 2007.To analyze the dynamics of the cyclone development,the NCEP analysis data and the Zwack-Okossi(Z-O) vorticity tendency equation are employed.Results show that there are three phases during the cyclone development. Firstly the cyclone appeared at the lower troposphere with significant frontogenesis and baroclinity.Secondly the app... |
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| Keywords: | diagnostic analysis cyclone trough merger |
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