論文

2023年2月23日

Latitudinal dependence of ground VLF transmitter wave power in the inner magnetosphere

Frontiers in Astronomy and Space Sciences
  • Zhiyang Xia
  • Lunjin Chen
  • Wenyao Gu
  • Richard B. Horne
  • Yoshizumi Miyoshi
  • Yoshiya Kasahara
  • Atsushi Kumamoto
  • Fuminori Tsuchiya
  • Satoko Nakamura
  • Masahiro Kitahara
  • Iku Shinohara
  • 全て表示

10
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.3389/fspas.2023.1135509
出版者・発行元
Frontiers Media SA

In this study, we use approximately 3 years of observations from the Exploration of energization and Radiation in Geospace (ERG/Arase) satellite to statistically study the meridional distribution of wave power from very-low-frequency (VLF) ground transmitters in the inner magnetosphere and analyze the corresponding latitudinal dependence. The results show that the mean intensity of NWC transmitter signals decreases as the transmitter emission propagates from the southern latitude (∼—30°) region to the equator in the inner magnetosphere and then increases as the emission propagates to the northern latitude region again. Similar latitudinal dependence can be found from the Van Allen Probes’ observation with a narrower latitude range (∼−20° to 0°). A ray-tracing simulation of the transmitter emission propagation is performed and reproduces a meridional wave power distribution similar to the observation. Similar latitudinal dependence can also be found for NAA, NLK and NLM transmitters.

リンク情報
DOI
https://doi.org/10.3389/fspas.2023.1135509
URL
https://www.frontiersin.org/articles/10.3389/fspas.2023.1135509/full
ID情報
  • DOI : 10.3389/fspas.2023.1135509
  • eISSN : 2296-987X

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