新一代天气雷达（ＣＢ）发射机的检测与维修

利用2006年和2007年太原地区的闪电定位资料，分析了太原地区地闪的日变化、月变化、闪电强度、闪电密度等特征结果表明：太原地区的正地闪比例明显低于我国北方地区的其它城市；总地闪和负地闪的日变化呈典型的双峰变化正闪的双峰特征不明显；太原市辖区北部和阳曲县是闪电频发的中心地带，闪电空间分布中心与冰雹发生源地和影响区对应一致；闪电多发区与地形、气候背景以及城市热岛效应有很大关系。

Characteristic of Lightning In Taiyuan City

The characteristic of daily and monthly change of lightning location, lightning intensity and lightning density were analyzed based on the information of lightning in 2006-2007 in Taiyuan City. The results show that the positive cg lightning is less than other cities in northern China. Total cg lightning and negative eg lightning show a typical bimodal changes. But the positive cg lightning is not obvious. Northern area of Taiyuan City and Yangqu county were the center of lightning. The distribution of lightning center corresponded with the resuurce of hail and the affected zone of hail. The terrain, climatic background and urban heat island related with lightning.