Isolated Large Bipolar Pulse (ILBP) Produced by Lightning Discharge in Winter Thunderstorm
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概要
- 論文の詳細を見る
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.
著者
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Ushio Tomoo
Division Of Electrical Electric And Information Engineering Graduate School Of Engineering Osaka Uni
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Kawasaki Zen-ichiro
Division Of Electrical Electric And Information Engineering Graduate School Of Engineering Osaka Uni
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Morimoto Takeshi
Department Of Applied Visual Science Graduate School Of Medicine
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Yoshida Satoru
Division Of Cardiology Department Of Internal Medicine
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Funaki Tsuyoshi
Division Of Electrical Electronic And Information Engineering Graduate School Of Engineering Osaka U
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Nakamura Yoshitaka
Department Of Abdominal And General Sugery Tenri Hospital
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Takayanagi Yuji
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
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Wu Ting
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
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Funaki Tsuyoshi
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
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