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dc.contributor.authorXia, Zhiyang
Chen, Lunjin
Dai, Lei
Claudepierre, Seth G.
Chan, Anthony A.
Soto-Chavez, A.R.
Reeves, G.D.
dc.date.accessioned 2017-05-19T19:09:39Z
dc.date.available 2017-05-19T19:09:39Z
dc.date.issued 2016
dc.identifier.citation Xia, Zhiyang, Chen, Lunjin, Dai, Lei, et al.. "Modulation of chorus intensity by ULF waves deep in the inner magnetosphere." Geophysical Research Letters, 43, no. 18 (2016) Wiley: 9444-9452. https://doi.org/10.1002/2016GL070280.
dc.identifier.urihttps://hdl.handle.net/1911/94294
dc.description.abstract Previous studies have shown that chorus wave intensity can be modulated by Pc4-Pc5 compressional ULF waves. In this study, we present Van Allen Probes observation of ULF wave modulating chorus wave intensity, which occurred deep in the magnetosphere. The ULF wave shows fundamental poloidal mode signature and mirror mode compressional nature. The observed ULF wave can modulate not only the chorus wave intensity but also the distribution of both protons and electrons. Linear growth rate analysis shows consistence with observed chorus intensity variation at low frequency (f <∼ 0.3fce), but cannot account for the observed higher-frequency chorus waves, including the upper band chorus waves. This suggests the chorus waves at higher-frequency ranges require nonlinear mechanisms. In addition, we use combined observations of Radiation Belt Storm Probes (RBSP) A and B to verify that the ULF wave event is spatially local and does not last long.
dc.language.iso eng
dc.publisher Wiley
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Modulation of chorus intensity by ULF waves deep in the inner magnetosphere
dc.type Journal article
dc.citation.journalTitle Geophysical Research Letters
dc.citation.volumeNumber 43
dc.citation.issueNumber 18
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1002/2016GL070280
dc.type.publication publisher version
dc.citation.firstpage 9444
dc.citation.lastpage 9452


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