Research on lightning warning method based on the characteristics of atmospheric electric field

Aiming at the shortcomings of traditional lightning protection measures in active defense for lightning accident, it is necessary to carry out studies on lightning warning method. On the basis of lightning warning information, measures can be taken to avoid lightning risk in advance. This paper makes comparative analysis between fair-weather electric field and thunderstorm-weather electric field by using Hilbert-Huang Transform, and analyses their intrinsic oscillation characteristics for lightning warning. Combining the amplitude of atmospheric electric field with its proportion of energy on high frequency band, a lightning warning method is proposed. Then typical thunderstorm-weather is utilized to verify this lightning warning method workable and accurate.