Upgrade to the Broadband Observation network for Lightning and Thunderstorms

Yasuhiro Akiyama1, Ting Wu2, Michael Stock3, Yoshitaka Nakamura4, Hiroshi Kikuchi5, Satoru Yoshida6, Tomoo Ushio7 and Zen Kawasaki1, (1)Osaka University, Osaka, Japan, (2)Gifu University, Gifu, Japan, (3)Earth Networks Inc., Germantown, United States, (4)Kobe City College of Technology, Kobe, Japan, (5)Tokyo Metropolitan University, Tokyo, Japan, (6)Meteorological Research Institute, Ibaraki, Japan, (7)Osaka University, Division of Electrical, Electronic, and Infocommunications Engineering, Osaka, Japan