globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL061867
论文题名:
First observation of rising-tone magnetosonic waves
作者: Fu H.S.; Cao J.B.; Zhima Z.; Khotyaintsev Y.V.; Angelopoulos V.; Santolík O.; Omura Y.; Taubenschuss U.; Chen L.; Huang S.Y.
刊名: Geophysical Research Letters
ISSN: 0094-9626
EISSN: 1944-9357
出版年: 2014
卷: 41, 期:21
起始页码: 7419
结束页码: 7426
语种: 英语
英文关键词: discrete ; frequency sweep rate ; magnetosonic wave ; nonlinear wave-particle interaction ; plasmapause ; rising tone
Scopus关键词: Electron cyclotron resonance ; Magnetosphere ; Particle interactions ; Wave plasma interactions ; discrete ; Frequency sweep ; Magnetosonic waves ; Nonlinear waves ; Plasmapause ; rising tone ; Spectrographs ; acoustic wave ; electromagnetic wave ; frequency analysis ; linear programing ; magnetic field ; noise ; plasma ; wave field
英文摘要: Magnetosonic (MS) waves are linearly polarized emissions confined near the magnetic equator with wave normal angle near 90° and frequency below the lower hybrid frequency. Such waves, also termed equatorial noise, were traditionally known to be "temporally continuous" in their time-frequency spectrogram. Here we show for the first time that MS waves actually have discrete wave elements with rising-tone features in their spectrogram. The frequency sweep rate of MS waves, ~1 Hz/s, is between that of chorus and electromagnetic ion cyclotron (EMIC) waves. For the two events we analyzed, MS waves occur outside the plasmapause and cannot penetrate into the plasmasphere; their power is smaller than that of chorus. We suggest that the rising-tone feature of MS waves is a consequence of nonlinear wave-particle interaction, as is the case with chorus and EMIC waves. Key Points For the first time, we observe rising-tone MS wavesFrequency sweep rate: EMIC waves < MS waves < chorusGeneration process of MS waves is quite possibly nonlinear ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84912060870&doi=10.1002%2f2014GL061867&partnerID=40&md5=69a03b8e46e2c28e566fb17ec5ba029b
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6890
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Space Science Institute, School of Astronautics, Beihang University, Beijing, China

Recommended Citation:
Fu H.S.,Cao J.B.,Zhima Z.,et al. First observation of rising-tone magnetosonic waves[J]. Geophysical Research Letters,2014-01-01,41(21).
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Fu H.S.]'s Articles
[Cao J.B.]'s Articles
[Zhima Z.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Fu H.S.]'s Articles
[Cao J.B.]'s Articles
[Zhima Z.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Fu H.S.]‘s Articles
[Cao J.B.]‘s Articles
[Zhima Z.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.