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强对流天气雷电参数和雷达回波特征个例分析
引用本文:罗树如,支树林,俞炳.强对流天气雷电参数和雷达回波特征个例分析[J].气象科技,2005,33(3):222-226,i002.
作者姓名:罗树如  支树林  俞炳
作者单位:1. 江西省气象局重点工程办公室,南昌,330046
2. 江西省气象台,南昌,330046
摘    要:分析2003年4月12日发生在江西省中北部的一次强对流过程的多普勒天气雷达探测资料和同时期的雷电参数结果发现:雷电参数对强对流天气反映更加敏感,雷电密集区的移动反映出强对流单体的移动趋势;雷电频数变化预示着强对流的不同发展阶段;根据雷电极性的变化,可判断强对流的种类。因此,结合雷达回波、卫星云图等资料,雷电参数可用于强对流天气的监测预报。雷电参数为强对流天气的短时预报增加了一种新的监测预警依据和手段。

关 键 词:强对流天气  雷电参数  雷达回波特征  个例分析  多普勒天气雷达  2003年4月  探测资料  对流过程  卫星云图  监测预报  监测预警  短时预报  中北部  江西省  密集区  频数

Analysis of Radar Echoes and Thunder-Lighting Parameter Characteristics of a Severe Convective Weather Event
Luo Shuru,Zhi Shulin,Yu Bing.Analysis of Radar Echoes and Thunder-Lighting Parameter Characteristics of a Severe Convective Weather Event[J].Meteorological Science and Technology,2005,33(3):222-226,i002.
Authors:Luo Shuru  Zhi Shulin  Yu Bing
Institution:Luo Shuru 1 Zhi Shulin 2 Yu Bing 2
Abstract:An analysis was made of the Doppler radar products and the thunder-lighting parameters of a severe convective weather event occurred on 12 April 2003 over the central and the northern Jiangxi Province. Results show that the thunder-lightning parameters are more sensitive to the strong convection weather. The movement of the thunder-lightning zone corresponds with the moving track of the strong convective cell. The thunder-lightning frequency change indicates the different development phases of the severe convective weather event. The type of convection can be identified through thunder-lightning polarity change. Therefore, the thunder-lightning parameters can be used in weather forecasting in combination with radar echo data and satellite cloud pictures.
Keywords:severe convective weather  thunder and lighting characteristics  Radar echo
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