Research on the Formation Mechanism and Characteristics of Ball Lightning

This paper discusses the lightning discharge initiation process under positive polarity thundercloud, and the analyzed formation process includes procedure from electron avalanche to streamer discharge. The dynamic spatial distribution of the concentrations of electrons, positive ions and electron thermal energy are obtained. The influences to the electric field added by the action of the electron concentration combined with the positive ions are calculated. By analyzing the results, the distribution of electron thermal energy is not according with that of high electron density.