Characteristics of Upward Leaders of Winter Lightning in the Coastal Area of the Sea of Japan

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カテゴリ: 論文誌(論文単位)グループ名: 【B】電力・エネルギー部門発行日: 2012/06/01タイトル(英語): Characteristics of Upward Leaders of Winter Lightning in the Coastal Area of the Sea of Japan著者名: Megumu Miki (Central R esearch Institute of Electric Power Industry), Toru Miki (Central Research Institute of Electric Power Industry), Akira Asakawa (Central Research Institute of Electric Power Industry), Takatoshi Shindo (Central Research Institute of 著者名(英語): Megumu Miki (Central Research Institute of Electric Power Industry), Toru Miki (Central Research Institute of Electric Power Industry), Akira Asakawa (Central Research Institute of Electric Power Industry), Takatoshi Shindo (Central Research Institute of Electric Power Industry), Shigeru Yokoyama (Central Research Institute of Electric Power Industry)キーワード: upward leader，winter lightning要約(英語): The characteristics of upward leaders were observed at a 200m chimney in the coastal area of the Sea of Japan from 1989 to 2008 for clarification of the initiation processes of upward lightning using a high-speed video camera and the ALPS(Automatic Lightning Progressing feature observation System). In the observation, we obtained images showing the inception processes of both positive and negative upward leaders with the corresponding current waveforms. Positive upward leaders propagate continuously and negative upward leaders propagate intermittently. We evaluated the line charge densities of the upward leaders, which were found to be much larger than those used in the lightning shielding model for the lightning protection design.本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.132 No.6 （2012） 特集：冬季雷，正極性雷，高建造物への落雷（ISWL）本誌掲載ページ: 560-567 p原稿種別: 論文／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/132/6/132_560/_article/-char/ja/ Show more