학술논문
First High-speed Video Camera Observations of a Lightning Flash Associated with a Downward Terrestrial Gamma-ray Flash
Document Type
Working Paper
Author
Abbasi, R. U.; Saba, M. M. F.; Belz, J. W.; Krehbiel, P. R.; Rison, W.; Kieu, N.; da Silva, D. R.; Rodeheffer, Dan; Stanley, M. A.; Remington, J.; Mazich, J.; LeVon, R.; Smout, K.; Petrizze, A.; Abu-Zayyad, T.; Allen, M.; Arai, Y.; Arimura, R.; Barcikowski, E.; Bergman, D. R.; Blake, S. A.; Buckland, I.; Cheon, B. G.; Chikawa, M.; Fujii, T.; Fujisue, K.; Fujita, K.; Fujiwara, R.; Fukushima, M.; Furlich, G.; Globus, N.; Gonzalez, R.; Hanlon, W.; Hayashida, N.; He, H.; Hibino, K.; Higuchi, R.; Honda, K.; Ikeda, D.; Inoue, N.; Ishii, T.; Ito, H.; Ivanov, D.; Iwakura, H.; Iwasaki, A.; Jeong, H. M.; Jeong, S.; Jui, C. C. H.; Kadota, K.; Kakimoto, F.; Kalashev, O.; Kasahara, K.; Kasami, S.; Kawakami, S.; Kawata, K.; Kharuk, I.; Kido, E.; Kim, H. B.; Kim, J. H.; Kim, S. W.; Kimura, Y.; Komae, I.; Kubota, Y.; Kuzmin, V.; Kuznetsov, M.; Kwon, Y. J.; Lee, K. H.; Lubsandorzhiev, B.; Lundquist, J. P.; Matsumiya, H.; Matsuyama, T.; Matthews, J. N.; Mayta, R.; Myers, I.; Nagataki, S.; Nakai, K.; Nakamura, R.; Nakamura, T.; Nakamura, Y.; Nakazawa, A.; Nishio, E.; Nonaka, T.; Oda, H.; Ogio, S.; Ohnishi, M.; Ohoka, H.; Oku, Y.; Okuda, T.; Omura, Y.; Ono, M.; Oshima, A.; Ozawa, S.; Park, I. H.; Potts, M.; Pshirkov, M. S.; Rodriguez, D. C.; Rott, C.; Rubtsov, G. I.; Ryu, D.; Sagawa, H.; Sakaki, N.; Sako, T.; Sakurai, N.; Sato, K.; Seki, T.; Sekino, K.; Shah, P. D.; Shibasaki, Y.; Shibata, N.; Shibata, T.; Shikita, J.; Shimodaira, H.; Shin, B. K.; Shin, H. S.; Shinto, D.; Smith, J. D.; Sokolsky, P.; Stokes, B. T.; Stroman, T. A.; Takahashi, K.; Takamura, M.; Takeda, M.; Takeishi, R.; Taketa, A.; Takita, M.; Tameda, Y.; Tanaka, K.; Tanaka, M.; Tanoue, Y.; Thomas, S. B.; Thomson, G. B.; Tinyakov, P.; Tkachev, I.; Tokuno, H.; Tomida, T.; Troitsky, S.; Tsuda, R.; Tsunesada, Y.; Udo, S.; Uehama, T.; Urban, F.; Warren, D.; Wong, T.; Yamamoto, M.; Yamazaki, K.; Yashiro, K.; Yoshida, F.; Zhezher, Y.; Zundel, Z.
Source
Geophysical Research Letters, 50, e2023GL102958 (2023)
Subject
Language
Abstract
In this paper, we present the first high-speed video observation of a cloud-to-ground lightning flash and its associated downward-directed Terrestrial Gamma-ray Flash (TGF). The optical emission of the event was observed by a high-speed video camera running at 40,000 frames per second in conjunction with the Telescope Array Surface Detector, Lightning Mapping Array, interferometer, electric-field fast antenna, and the National Lightning Detection Network. The cloud-to-ground flash associated with the observed TGF was formed by a fast downward leader followed by a very intense return stroke peak current of -154 kA. The TGF occurred while the downward leader was below cloud base, and even when it was halfway in its propagation to ground. The suite of gamma-ray and lightning instruments, timing resolution, and source proximity offer us detailed information and therefore a unique look at the TGF phenomena.