Journal article
Disappearance of plasmaspheric hiss following interplanetary shock
Geophysical research letters, Vol.42(9), pp.3129-3140
05/16/2015
DOI: 10.1002/2015GL063906
Abstract
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.
Details
- Title: Subtitle
- Disappearance of plasmaspheric hiss following interplanetary shock
- Creators
- Zhenpeng Su - Chinese Academy of SciencesC. A Kletzing - University of IowaW. S Kurth - University of IowaHui Zhu - CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences University of Science and Technology of China Hefei ChinaFuliang Xiao - Changsha University of Science and TechnologyG. B Hospodarsky - University of IowaHuinan Zheng - Chinese Academy of SciencesYuming Wang - University of Science and Technology of ChinaChao Shen - Chinese Academy of SciencesMin Zhang - University of Science and Technology of ChinaShui Wang - University of Science and Technology of ChinaH. E Spence - University of New HampshireG. D Reeves - Los Alamos National LaboratoryH. O Funsten - Los Alamos National LaboratoryJ. B Blake - The Aerospace CorporationD. N Baker - University of Colorado BoulderJ. R Wygant - University of Minnesota
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.42(9), pp.3129-3140
- Publisher
- Blackwell Publishing Ltd
- DOI
- 10.1002/2015GL063906
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Number of pages
- 9
- Grant note
- DOI: 10.13039/501100001809, name: National Natural Science Foundation of China, award: 41274169, 41274174, 41422405, 41174125, 41131065, 41121003, 41074120, 41231066, 41304134; DOI: 10.13039/501100002367, name: Chinese Academy of Sciences, award: KZCX2-EW-QN510, KZZD-EW-01-4; name: National Key Basic Research Special Foundation of China, award: 2011CB811403; name: JHU/APL, award: 921647, 967399, 922613; name: NASA Prime, award: NAS5-01072
- Language
- English
- Date published
- 05/16/2015
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199950702771
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