Isolated Large Bipolar Pulse (ILBP) Produced by Lightning Discharge in Winter Thunderstorm

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2013/09/01

タイトル(英語): Isolated Large Bipolar Pulse (ILBP) Produced by Lightning Discharge in Winter Thunderstorm

著者名: Ting Wu (Graduate School of Engineering, Osaka University), Yuji Takayanagi (Graduate School of Engineering, Osaka University), Tsuyoshi Funaki (Graduate School of Engineering, Osaka University), Satoru Yoshida (Graduate School of Engineering, Osaka Unive

著者名(英語): Ting Wu (Graduate School of Engineering, Osaka University), Yuji Takayanagi (Graduate School of Engineering, Osaka University), Tsuyoshi Funaki (Graduate School of Engineering, Osaka University), Satoru Yoshida (Graduate School of Engineering, Osaka University), Tomoo Ushio (Graduate School of Engineering, Osaka University), Zen-Ichiro Kawasaki (Graduate School of Engineering, Osaka University/Communications and Computer Engineering, Egypt-Japan University of Science and Technology), Takeshi Morimoto (Faculty of Science and Engineering, Kinki University), Yoshitaka Nakamura (Kobe City College of Technology)

キーワード: isolated large bipolar pulse，narrow bipolar pulse，negative return stroke，winter thunderstorm

要約(英語): We present the first analysis of a type of special lightning discharge event, called “isolated large bipolar pulse” (ILBP), produced in winter thunderstorm. ILBP produces single bipolar electric field change waveforms with pulse widths mainly in the range of 7 to 19μs. The initial positive half cycle and the negative cycle of the bipolar pulse are symmetrical with each other to some extent. ILBP is also a very energetic discharge process, producing very large electric field changes even larger than that produced by positive return strokes. Most of ILBPs are found to be isolated with other discharge processes on a time scale of 1 second, but a few ILBPs also seem to be the initiation of other discharge processes. Based on the similarities and differences between ILBP, narrow bipolar pulse (NBP) and negative return stroke (RS) in winter thunderstorm, we discuss the possibility of ILBP as a special version of NBP in winter thunderstorm and as a special type of negative RS.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.9 （2013）

本誌掲載ページ: 451-457 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/133/9/133_451/_article/-char/ja/