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| 冰雹风暴中的流场结构及大冰雹生成区 | |
| 引用本文： | 朱君鉴,郑国光,王令,房文,刁秀广.冰雹风暴中的流场结构及大冰雹生成区[J].南京气象学院学报,2004,27(6):735-742. |
| 作者姓名： | 朱君鉴 郑国光 王令 房文 刁秀广 |
| 作者单位： | 1. 山东省气象科学研究所,山东,济南,250031 2. 中国气象局,北京,100081 3. 北京市气象台,北京,100089 4. 山东省气象台,山东,济南,250031 |
| 基金项目： | 国家自然科学基金资助项目(40275001),山东省气象局科技创新项目"山东多普勒天气雷达业务工作平台研究开发" |
| 摘 要： | 采用对风暴每6min一次CINRAD／SA的立体扫描资料,分析了新一代天气雷达探测到的几次冰雹云的空间结构。结果表明,风暴中存在中尺度气旋,中尺度气旋低层气旋性辐合、中低层纯气旋性旋转、中上层气旋性辐散、高层辐散。在中高层气旋的右后侧紧挨着有一个反中气旋伴随。中气旋与反中气旋形成了一个“8”型流场和“S”型的强回波区。在中层到中高层,“S”型强回波区有利于形成“穴道”,而在“S”的两个拐弯处的内侧,水平速度更小,更易形成“穴道”,成为大冰雹生成区。 |
| 关 键 词： | 中尺度气旋 强回波 冰雹生成 |
| 文章编号： | 1000-2022(2004)06-0735-08 |
The Air Flow and the Large-Hail Generation Area in Hailstorms |
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| ZHU Jun-jian,ZHENG Guo-guang,WANG Ling,FANG Wen,DIAO Xiu-guang.The Air Flow and the Large-Hail Generation Area in Hailstorms[J].Journal of Nanjing Institute of Meteorology,2004,27(6):735-742. | |
| Authors: | ZHU Jun-jian ZHENG Guo-guang WANG Ling FANG Wen DIAO Xiu-guang |
| Institution: | ZHU Jun-jian~1,ZHENG Guo-guang~2,WANG Ling~3,FANG Wen~2,DIAO Xiu-guang~4 |
| Abstract: | Based on a series of WSR-98D(CINRAD/SA) volume scan data every 6min,the structure of 3 hailstorms is analysed.Each storm had a mesocyclone,wherein the flow converged cyclonically at the low level,rotated cyclonically at the middle-low level,diverged cyclonically at the middle-up level,and diverged at the up level.On the right back of the mesocyclone there was an accompanying anticyclone at the middle-up level.Cyclone and anticyclone forms a "8" pattern flow and a "S" shape intense refractivity area.The "S" area at the middle-up level helps form a "cave channel".In the two turnings of the "S",the horizontal velocity is weaker,the "cave channel" forms more frequent and is the large-hail spawn region. |
| Keywords: | mesocyclone strong echo hail spawn |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |