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首页> 外文会议>2011 7th Asia-Pacific International Conference on Lightning >Electric characteristics of Atmosphere in Yuxi region and its Application of the CG lightning warning
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Electric characteristics of Atmosphere in Yuxi region and its Application of the CG lightning warning

机译：玉溪地区大气电特征及其CG雷电预警的应用。

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摘要

The characteristics of atmospheric electric in fair weather and thunderstorm in Yuxi region have been analyzed by using the data obtained from Yunnan Lightning Location System and electric field mill from July 2006 to June 2007.It has been found the diurnal and monthly of atmospheric electric evolution in fair weather showed variation in Yuxi region. The charge structures of thunderstorm are both dipole and tripole, but most of charge structure of thunderstorm is dipolar.Different charge structure of thunderstorm is different discharge, the negative polarity of electric field underneath thunderstorm is main negative discharge, the activity of the cloud-to-ground(CG) flash is very active, the positive polarity of electric field underneath thunderstorm is main positive discharge, the activity of the cloudto-ground flash is very weak. The methods of the CG lightning warning by the electric field mill are studied based on the variation characteristic of thunderstorm electric field, the polarity reversal warning method is applied, its POD and LT are more better than the threshold warning method.
机译：利用云南省雷电定位系统和电场厂2006年7月至2007年6月的数据，分析了玉溪地区晴空和雷暴天气的大气电特性。玉溪地区天气晴朗。雷暴的电荷结构既有偶极子又有三极子，但雷暴的电荷结构大多数是偶极子。雷暴的不同电荷结构是不同的放电，雷暴下电场的负极性是主要的负放电，云活动为地面（CG）闪光非常活跃，雷暴下的电场的正极性是主要的正放电，云对地闪光的活性非常弱。针对雷暴电场的变化特征，研究了电场磨的CG雷电预警方法，并采用了极性反转预警法，其POD，LT优于阈值预警法。

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