Matching Algorithms of ELF-LEMPs and Lightning Geo-location Data

• Tsurushima Daiki

  IDEA Consultants, Inc.

• Honma Noriyasu

  Research & Development Center, Tohoku Electric Power Company, Inc.

• Tsuchiya Fuminori

  Graduate School of Scence, Tohoku University

• Sato Mitsuteru

  Graduate School of Scence, Hokkaido University

• Takahashi Yukihiro

  Graduate School of Scence, Hokkaido University

抄録

ELF-band lightning electromagnetic pulses (ELF-LEMPs) have been used to retrieve lightning Charge Moment Change (CMC) and electric Current Waveform (CW). Since neither CMC nor CW can be measured by conventional Lightning Location System (LLS), it is advantageous to combine LLS and ELF measurements in order to monitor lightning geo-locations, CMC and CW simultaneously. To construct an accurate combined system of LLS and ELF measurements matching algorithms for associating lightning geo-locations and their corresponding ELF-LEMPs are important. This study developed three matching algorithms based on the time, the polarity and the direction of lightning discharges. Furthermore, we applied the newly developed algorithms to LLS and ELF measurements in Tohoku district and obtained a 30-70% Detection Efficiency (DE). The results also indicate that DE depends mainly on peak electric current (I_p). For example, DE exceeds 70% for lightning events with |I_p| ≥ 40kA while DE drops below 70% for lower I_p events.

収録刊行物

• 電気学会論文誌Ｂ（電力・エネルギー部門誌）

  電気学会論文誌Ｂ（電力・エネルギー部門誌） 138 (5), 339-345, 2018-05-01

  一般社団法人 電気学会

キーワード

• lightning location system
• LEMP
• ELF
• site-error

詳細情報

• CRID: 1390001204606532480
• NII論文ID: 130006730640
• NII書誌ID: AN10136334
• DOI: 10.1541/ieejpes.138.339
• ISSN: 13488147
• ISSN: 03854213
• NDL書誌ID: 029060134
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029060134
• Web Site: https://www.jstage.jst.go.jp/article/ieejpes/138/5/138_339/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可