A Statistical Study on the Dependence of Characteristics of VLF/LF Terminator Times on the Propagation Direction

• Maekawa Shinko

  The University of Electro-Communications

• Hayakawa Masashi

  The University of Electro-Communications

書誌事項

タイトル別名

• Statistical Study on the Dependence of Characteristics of VLF LF Terminator Times on the Propagation Direction

抄録

We present a detailed statistical study over two years on the times of amplitude minima (so-called terminator times) observed for the VLF/LF transmitters NPM/NWC/JJY as received at three sites. We analyzed three paths: East-West long propagation path, North-South long propagation path and North-South short propagation path. In this paper we examine the statistical behavior on the dependence of VLF/LF terminator time characteristics on the propagation direction and also we focus on the short-term terminator time (TT) characteristics. We found from the data analysis that TT behavior is regularly influenced by the lower-ionospheric condition which depends on the sunrise/sunset transition and season.

収録刊行物

• 電気学会論文誌．　Ａ

  電気学会論文誌．　Ａ 126 (4), 220-226, 2006

  一般社団法人 電気学会

キーワード

• subionospheric VLF/LF propagation
• terminator times
• day-night asymmetry
• TT method
• ionospheric perturbations
• seismic effect

詳細情報

• CRID: 1390001204593713664
• NII論文ID: 10017541567
• NII書誌ID: AN10136312
• DOI: 10.1541/ieejfms.126.220
• ISSN: 13475533
• ISSN: 03854205
• NDL書誌ID: 7910699
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7910699
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/126/4/126_4_220/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可