Relation between Lightning Activities and the Intensity Development of Western North Pacific Typhoons

Mitsuteru Sato1, Yukihiro Takahashi2, Hisayuki Kubota1 and Glenn Vincent Lopez3, (1)Hokkaido University, Faculty of Science, Sapporo, Japan, (2)Hokkaido University, Sapporo, Japan, (3)Advanced Science and Technology Institute, Manila, Philippines