2014年11月
Fine structure of plasmaspheric hiss
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
- ,
- ,
- ,
- 巻
- 119
- 号
- 11
- 開始ページ
- 9134
- 終了ページ
- 9149
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/2014JA020437
- 出版者・発行元
- AMER GEOPHYSICAL UNION
Plasmaspheric hiss has been widely regarded as a broadband, structureless, incoherent emission. In this study, by examining burst-mode vector waveform data from the Electric and Magnetic Field Instrument Suite and Integrated Science instrument on the Van Allen Probes mission, we show that plasmaspheric hiss is a coherent emission with complex fine structure. Specifically, plasmaspheric hiss appears as discrete rising tone and falling tone elements. Our study comprises the analysis of two 1 h samples within which a total of eight 1 s samples were analyzed. By means of waveform analysis on two samples, we identify typical amplitudes, phase profiles, and sweep rates of the rising and falling tone elements. The exciting new observations reported here can be expected to fuel a reexamination of the properties of plasmaspheric hiss, including a further reanalysis of the generation mechanism for hiss.
- リンク情報
- ID情報
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- DOI : 10.1002/2014JA020437
- ISSN : 2169-9380
- eISSN : 2169-9402
- Web of Science ID : WOS:000346792100030