Lightning flash started near the electron acceleration region in the thundercloud

Miwa Tsurumi,a,b,∗ Teruaki Enoto, Yuko Ikkatai, Ting Wu, Daohong Wang, Taro Shinoda, f Kazuhiro Nakazawa, Noki Tsuji, Diniz Gabriel, Jun Kaoataoka, Ryoji Iwashita, Nanase Koshikawa, Masashi Kamogawa, Toru Takagaki, j Shoko Miyake, Dai Tomioka, Takeshi Morimoto, Yoshitaka Nakamura and Harufumi Tsuchiya Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Japan Graduate School of Science and Engineering, Aoyama Gakuin University, Kanagawa, Japan Extreme Natural Phenomena RIKEN Hakubi Research Team, Cluster of Pioneering Research, RIKEN, Saitama, Japan Institute of Human and Social Sciences, Kanazawa University, Ishikawa, Japan Department of Electrical, Electronic and Computer Engineering, Gifu University, Gifu, Japan f Institute for Space-Earth Environmental Research, Nagoya University, Aichi, Japan Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Aichi, Japan Faculty of Science and Engineering, Waseda University, Tokyo, Japan Global Center for Asian and Regional Research, University of Shizuoka, Shizuoka, Japan TAC Inc., Kyoto, Japan National Institute of Technology (KOSEN), Ibaraki College, Ibaraki, Japan Faculty of Science and Engineering, Kindai University, Osaka, Japan Department of Electrical Engineering, Kobe City College of Technology, Hyogo, Japan Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan