Thunderstorm-induced energetic radiation observed at the summit of Mt. Fuji during July - August of 2013

Shusaku TAKAHASHI; Masashi KAMOGAWA; Tatsuo TORII; Shogen SAITO; Tomomi SHOJI; Yuko SUZUKI; Tomoyuki SUZUKI

Presentation information

Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS29] Atmospheric Electricity

Sun. May 24, 2015 2:15 PM - 4:00 PM A01 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Yasuhide Hobara(Graduate School of Information and Engineering Department of Communication Engineering and Informatics, The University of Electro-Communications), Tomoo Ushio(Information and communication engineering department, Osaka University), Chair:Takeshi Morimoto(Faculty of Science and Engineering, Kindai University)

2:30 PM - 2:45 PM

[MIS29-16] Thunderstorm-induced energetic radiation observed at the summit of Mt. Fuji during July - August of 2013

*Shusaku TAKAHASHI¹, Masashi KAMOGAWA¹, Tatsuo TORII², Shogen SAITO¹, Tomomi SHOJI¹, Yuko SUZUKI¹, Tomoyuki SUZUKI¹ (1.Dpt. of Phys., Tokyo Gakugei Univ., 2.Japan Atomic Energy Agency)

Keywords:Energetic radiation, Thunderstorm, Mt. Fuji

We investigate the condition of the energetic radiation caused by the thunderstorm electric filed. From the events of the energetic radiation observed at the summit of Mt. Fuji during the summer, the following features were found: Negatively charged region located in -10 ℃ altitude (approximately 7 km) inside the thunderstorm attributed to the radiation. The observed radiation was enhanced about 10 %. Our Monte Carlo simulation showed that the energetic radiation was observed when the negatively charged region with the -4 nC/m³ and 1 km radius appeared at approximately 7 km altitude.