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A statistical study of EMIC waves observed by Cluster: 2. Associated plasma conditions
Allen, R. C.; Zhang, J. -C.; Kistler, L. M.; Spence, H. E.; Lin, R. -L.; Klecker, B.; Dunlop, M. W.; Andre, M.; Jordanova, V. K.; Allen, RC (reprint author), Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.; Allen, RC (reprint author), Univ New Hampshire, Dept Phys, Durham, NH 03824 USA.; Allen, RC (reprint author), Southwest Res Inst, Space Sci & Engn Div, San Antonio, TX 78238 USA.; Allen, RC (reprint author), Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA.
Department空间环境部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2016
Volume121Issue:7Pages:6458-6479
ISSN2169-9380
Language英语
KeywordEmic Waves Magnetosphere Cluster Shabansky Orbits
AbstractThis is the second in a pair of papers discussing a statistical study of electromagnetic ion cyclotron (EMIC) waves detected during 10years (2001-2010) of Cluster observations. In the first paper, an analysis of EMIC wave properties (i.e., wave power, polarization, normal angle, and wave propagation angle) is presented in both the magnetic latitude (MLAT)-distance as well as magnetic local time (MLT)-L frames. This paper focuses on the distribution of EMIC wave-associated plasma conditions as well as two EMIC wave generation proxies (the electron plasma frequency to gyrofrequency ratio proxy and the linear theory proxy) in these same frames. Based on the distributions of hot H+ anisotropy, electron and hot H+ density measurements, hot H+ parallel plasma beta, and the calculated wave generation proxies, three source regions of EMIC waves appear to exist: (1) the well-known overlap between cold plasmaspheric or plume populations with hot anisotropic ring current populations in the postnoon to dusk MLT region; (2) regions all along the dayside magnetosphere at high L shells related to dayside magnetospheric compression and drift shell splitting; and (3) off-equator regions possibly associated with the Shabansky orbits in the dayside magnetosphere.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5579
Collection空间环境部
Corresponding AuthorAllen, RC (reprint author), Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.; Allen, RC (reprint author), Univ New Hampshire, Dept Phys, Durham, NH 03824 USA.; Allen, RC (reprint author), Southwest Res Inst, Space Sci & Engn Div, San Antonio, TX 78238 USA.; Allen, RC (reprint author), Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA.
Recommended Citation
GB/T 7714
Allen, R. C.,Zhang, J. -C.,Kistler, L. M.,et al. A statistical study of EMIC waves observed by Cluster: 2. Associated plasma conditions[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2016,121(7):6458-6479.
APA Allen, R. C..,Zhang, J. -C..,Kistler, L. M..,Spence, H. E..,Lin, R. -L..,...&Allen, RC .(2016).A statistical study of EMIC waves observed by Cluster: 2. Associated plasma conditions.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,121(7),6458-6479.
MLA Allen, R. C.,et al."A statistical study of EMIC waves observed by Cluster: 2. Associated plasma conditions".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 121.7(2016):6458-6479.
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