Abstract:
The DNDY atmospheric electric field instrument is used to research the thunderstorm of Guiyang airport betwwen January 2011 to June 2012,and analyse the feature of charge structure and electric field curve of thunderstorm cloud,and amply analyse the electric field variation of thunderstorm of Guiyang airport on May 12 th,2012.The result shows that,the atmosphere electric filed data can forecast and warm the thunderstorm in certain range.When the thunderstorm occurred in Guiyang airport,the electric filed curve is divided into the jumping type、Droping type and undulation type.When the electric field curve has a high frequency fast jitter and electric strength reachs to 510 kV/m,it may be the forecast index of thunderstorm of Guiyang airport.The fast spike of the electric field curve shows that the light between cloud to ground occurs,and the thunderstorm already occurs too.