LF帯観測データとLLSデータの照合からみた長距離に広がる雷放電の特徴と放電進展様相

カテゴリ: 部門大会

論文No: 41

グループ名: 【B】令和5年電気学会電力・エネルギー部門大会

発行日: 2023/08/23

タイトル(英語): Characteristics and Aspect of Discharge Progress of Lightning with Propagating Long Distance by Matching Data of LF-band Observation and LLS

著者名: 田尻貴浩（中部電力），清水雅仁（中部電力），中村佳敬（神戸市立工業高等専門学校），酒井英男（富山大学），森本健志（近畿大学）

著者名(英語): Takahiro Tajiri (Chubu Electric Power Company.,Inc.), Masahito Shimizu (Chubu Electric Power Company.,Inc.), Yoshitaka Nakamura (Kobe City College of Technology), Hideo Sakai (University of Toyama), Takeshi Morimoto (Kindai University)

キーワード: LF帯観測|LLS|雷放電|冬季雷|電磁波観測|上向き雷|LF-band observation|LLS|lightning discharge|winter thunderstorm|electromagnetic observation|upward lightning

要約(英語): Japan Sea coast in Hokuriku is known as a rare region in the world where lightning discharges occur in winter season. Winter　thunderstorm tends to be different from summer one, with a higher percentage of positive stroke and lower multiplicity of lightning flash. We have installed LF band receiver that can observe electromagnetic wave from the return stroke and the lightning processes of both CG and CC discharge. From the received LF signals, their radiation source locations are estimated using TOA method. As the result, lightning discharge with the length of over 100km are detected in winter thunderstorm season. These discharges are unlike general lightning discharge in winter thunderstorm season.

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