利用大气电场资料进行雷暴预警预报

Thunderstorm warning and forecast with atmosphere electric field data

在叙述大气电场变化规律和大气电场仪功能的基础上,分析了2007年银川地区大气电场变化与雷暴天气的对应关系和特点,并根据大气电场强度的变化,提出了通过设定某一阀值的方法来提前预警预报雷暴天气的发生和发展.结果表明,当发生雷暴天气时,大气电场强度会出现不规则的波动.设定大气电场强度剧变达到某一个异常数值(阀值)的方法,能够提前开展雷电预警和预报工作.

Based on the description of changing reg ulation about atmosphere electric field and the function of ground atmospheric electric field instrument,the corresponding relation and their characters between changing of atmosphere electric field and thunderstorm weather were analyzed,and threshold method was put out to forewarn and forecast the occurrence and development of thunderstorm according to changing regulation about atmosphere electric field.The result shows that the atmosphere electric field intensity fluctuations occurs irregularly when thunderstorm happens.the method of setting abnormal value for great change of atmosphere electric field intensity,threshold,can carry on thunderstorm warning and forecast in advanced.