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投稿时间：2006-10-30 修订日期：2007-06-14
投稿时间：2006-10-30 修订日期：2007-06-14
中文摘要: 利用多普勒雷达资料，对2006年6月2日夜间出现在陕西中部和北部地区的区域性暴雨过程进
行分析。结果发现：低层暖湿急流和弱冷空气相互作用产生的两条中尺度辐合线是这一地区
出现大暴雨的主要影响系统；低空东南急流为降水区提供的大量的水汽和不稳定能量堆积，
在弱冷空气的触发下释放，是产生大暴雨的主要原因；低空急流的输送方向与中尺度辐合线
的移动方向，决定了未来辐合线的发展状态；低空急流的日变化引起了暴雨夜发性。
Abstract:There was a regional heavy rain in the middle of Shannxi Province at the night o
f June 2, 2006. The rain was analyzed by using Doppler data. The result shows t
hat the meso scale convergence line, which was the result of interaction betwee
n the low level warm/wet jet and weak cold air, directly produced the heavy rai
n. Low level jet provided not only ample of vapor but also instability energy
, so it was the main matter which resulted in so heavy rain. The directions of
low level jet and meso scale convergence line that affects the developing of
convergence line. At the night, low level jet will become more intensive, that
is why lots of heavy rain occurred in the evening.
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| Wang Nan | Shannxi Meteorological Observatory, Xi'an 710016 |
| Liu Yong | Shannxi Meteorological Observatory, Xi'an 710016 |
| Guo Damei | Shannxi Meteorological Observatory, Xi'an 710016 |
引用文本：
王楠,刘勇,郭大梅,2007.用多普勒雷达资料对一次区域性暴雨的中尺度分析[J].气象,33(8):29-34.
Wang Nan,Liu Yong,Guo Damei,2007.Meso Scale Analysis of a Regional Heavy Rain Using Doppler Radar Data[J].Meteor Mon,33(8):29-34.
王楠,刘勇,郭大梅,2007.用多普勒雷达资料对一次区域性暴雨的中尺度分析[J].气象,33(8):29-34.
Wang Nan,Liu Yong,Guo Damei,2007.Meso Scale Analysis of a Regional Heavy Rain Using Doppler Radar Data[J].Meteor Mon,33(8):29-34.