globalchange  > 科学计划与规划
DOI: 10.1002/2015GL063906
论文题名:
Disappearance of plasmaspheric hiss following interplanetary shock
作者: Su Z.; Zhu H.; Xiao F.; Zheng H.; Wang Y.; Shen C.; Zhang M.; Wang S.; Kletzing C.A.; Kurth W.S.; Hospodarsky G.B.; Spence H.E.; Reeves G.D.; Funsten H.O.; Blake J.B.; Baker D.N.; Wygant J.R.
刊名: Geophysical Research Letters
ISSN: 0094-9209
EISSN: 1944-8940
出版年: 2015
卷: 42, 期:9
起始页码: 3129
结束页码: 3140
语种: 英语
英文关键词: cyclotron instability ; cyclotron resonance ; interplanetary shock ; Landau damping ; plasmaspheric hiss ; radiation belt
Scopus关键词: Cyclotron resonance ; Cyclotrons ; Damping ; Magnetosphere ; Plasma waves ; Radiation belts ; Shock waves ; Cyclotron instability ; Generation mechanism ; Interplanetary shocks ; Landau damping ; Plasmaspheric hiss ; Radiation belt dynamics ; Spatiotemporal distributions ; Suprathermal electrons ; Atmospherics ; electromagnetic radiation ; magnetopause ; plasma ; wave propagation
英文摘要: Plasmaspheric hiss is one of the important plasma waves controlling radiation belt dynamics. Its spatiotemporal distribution and generation mechanism are presently the object of active research. We here give the first report on the shock-induced disappearance of plasmaspheric hiss observed by the Van Allen Probes on 8 October 2013. This special event exhibits the dramatic variability of plasmaspheric hiss and provides a good opportunity to test its generation mechanisms. The origination of plasmaspheric hiss from plasmatrough chorus is suggested to be an appropriate prerequisite to explain this event. The shock increased the suprathermal electron fluxes, and then the enhanced Landau damping promptly prevented chorus waves from entering the plasmasphere. Subsequently, the shrinking magnetopause removed the source electrons for chorus, contributing significantly to the several-hours-long disappearance of plasmaspheric hiss. Key Points First report on shock-induced disappearance of plasmaspheric hiss Interruption of chorus access into plasmasphere by enhanced Landau damping Removal of source electrons for chorus by the shrinking magnetopause ©2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930481605&doi=10.1002%2f2015GL063906&partnerID=40&md5=8f9e6568d195a0b15f53be8b049874a4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8825
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences, University of Science and Technology of China, Hefei, China

Recommended Citation:
Su Z.,Zhu H.,Xiao F.,et al. Disappearance of plasmaspheric hiss following interplanetary shock[J]. Geophysical Research Letters,2015-01-01,42(9).
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