J4 ›› 2004, Vol. 22 ›› Issue (2): 17-22.

• 论文 • 上一篇    下一篇

2002年6月7~8日宁夏区域性暴雨天气过程分析

纪晓玲1贾宏元2沈跃琴2   

  1. 1.宁夏气象防灾减灾重点实验室,宁夏 银川 750002;2.宁夏气象台,宁夏 银川 750002
  • 收稿日期:2004-03-02 修回日期:2004-06-18 出版日期:2004-06-30 发布日期:2004-06-30
  • 作者简介:纪晓玲(1967-),女,高级工程师,主要从事短期天气预报及灾害性天气预报方法研究.Tel:0951-5043015E-mail:jixlingyc@163.com
  • 基金资助:

    宁夏青年科学基金项目“宁夏暴雨中尺度系统发生、发展机理的数值试验研究”(B0702)资助

Analysis of a Torrent Rain Weather Process in Ningxia Occurring on7~8th June 2002

JIXiao-ling1,JIAHong-yuan2,SHENYao-qin2   

  1. 1.Key Laboratory of Meteorological Disaster Preventing and Reducing in Ningxia;Yinchuan 750002,China;
    2.Ningxia Meteorological Observatory,Yinchuan 750002,China
  • Received:2004-03-02 Revised:2004-06-18 Online:2004-06-30 Published:2004-06-30

摘要:

利用常规气象资料、数值预报产品及卫星云图、雷达回波等观测资料,应用天气学分析及诊断分析方法,对2002年6月7~8日发生在宁夏的罕见区域性暴雨天气过程进行了分析。结果表明,此次暴雨天气是在有利的“东高西低”降水形势下产生的。其主要影响系统是500hPa冷槽、700hPa低涡切变线、西南低空急流以及地面“锢囚锋”。相对稳定的“东阻形势”和西南低空急流的维持是暴雨持续的主要原因。

关键词: 暴雨, 影响系统, 分析, T213风场

Abstract:

By using routine meteorological data,numerical forecast products,satellite cloud photographs and radare choes,applying synoptic analysis and diagnostic analysis methods,We analyzed the infrequent regional heavy rain which occurred in Ningxia on June7~8th,2002.The results show that this heavy rain occurred under the favourable weather condition that the high center in the east whilethe low center in the west,this is a typical mixed precipitation weather.The main impact system is cold trough on 500 hPa,low eddy shear line on 700 hPa,low ertroposphere jet in the southwest and surface occluded front.The relative stable condition which blocked in the east and the maintain of the southwest lower troposphere jet were the main reasons of this hard rain’s maintain

Key words: rainstorm, impact system, analysis, T213 wind , field

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