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Lightning occurrence data observed with lightning location systems of electric power companies in Japan: 2009–2013
Authors:Takatoshi Shindo  Hideki Motoyama  Toru Miki  Mikihisa Saito  Akiyori Matsueda  Noriyasu Honma  Tomohito Hida  Kazuo Shinjo  Kiyotaka Hayashi  Hayato Awazu  Katsuhisa Makabe  Masato Fujikawa  Satoshi Kurihara  Masashi Sato
Abstract:Nine electric power companies in Japan have been collecting lightning data with lightning location systems. Five years of the lightning data (2009–2013) are summarized and analyzed in this paper. The recent annual number of lightning flashes of which the current is more than 10 kA in Japan is around 1 million. The variations of lightning occurrence characteristics by areas, seasons, and so on, are clarified. Meteorological conditions that may affect lightning occurrence are also discussed. Furthermore, we show that there is a clear correlation between the number of lightning strikes and the outage rate of transmission lines. © 2016 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
Keywords:lightning  lightning location system  lightning density  lightning current  lightning data
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