気象因子を用いた発雷予測の検討

抄録

The lightning location system and weather radar system have made it possible to track lightning activities and to assume lightning occurrence precisely. These system are useful to reduce the influence of lightning failure in the power system. If lightning occurrence is forcasted several hours and one day before, more effective operation and restoration of power facilities can be realized. In an attempt to develop lightning forecast system, we researched correlation between lightning information and weather elements observed before and during lightning activities. One of important factors is air-mass stability index. We developed new type of stability index which is specifically used for lightning forecast. New type of lightning forecast algorithm has been also developed. Some case studies indicate the new lightning forecast algorithm has good accuracy.