シミュレーションによる落雷時雲内電荷分布と誘導イオン層の役割の考察

概要

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Through the calculation of the electric fields under some static model thunderclouds, it is investigated how space charges are distributed when a lightning strikes the ground, and also the role of each charged region is investigated. By comparison with the breakdown electric field it becomes evident that the size of the upper charged region in a thundercloud is related to the possibility of the occurrence of the lightning discharge toward the ground, and by comparison with observed surface electric field in winter it also becomes evident that the induced ion layer which consists of released ions from objects on the ground works as a shield against the strong electric field produced by the thundercloud and ensures a lightning discharge.
福山大学の論文