[M-IS10] Coupling between the atmosphere, ionosphere and magnetosphere above thunderstorms

[MIS10-P01] Thunder Cloud Project : Ground-based multipoint radiation measurement campaign of high-energy atmospheric phenomena

*Teruaki Enoto¹, Yuuki Wada^2,1, Takayuki Yuasa, Yuko Ikkatai², Kazuhiro Nakazawa³, Shohei Hisadomi³, Yuna Tsuji³, Harufumi Tsuchiya^4,1, Takeshi Morimoto⁵, Yoshitaka Nakamura⁶, Masashi Kamogawa⁷, Yousuke Sato⁸ (1.RIKEN, 2.The University of Tokyo, 3.Nagoya University, 4.Japan Atomic Energy Agency, 5.KINDAI Univeristy , 6.Kobe City College of Technology , 7.University of Shizuoka, 8.Hokkaido University )

In winter, we frequently observe low-altitude thunderstorms and powerful lightning discharges in the coastal area along the Sea of Japan. Since 2006, the Gamma-Ray Observation of Winter THunderclouds (GROWTH) collaboration has been measuring gamma-ray glows, high-energy radiation from thunderstorms, in this area. Recently, we are expanding this project to a multi-point radiation measurement network at the Kabazawa city, which was named ‘Thunder Cloud Project’, and being collaborated with ground-based radio monitoring of lightning discharges. We also developed several versions of handy radiation detectors. Every winter, this new observation campaign has been detecting not only many gamma-ray glows from thunderstorms but also photonuclear reactions triggered by lightning discharges. In 2020, we are working to make our observation network a new citizen-supporting program, in which citizen supporters will deploy our handy detectors in their home. Here we summarize our recent progress and future prospect of the Thunder Cloud Project.