DOI: 10.1002/2016GL070333
论文题名: Observational evidence of the nonlinear wave growth theory of plasmaspheric hiss
作者: Nakamura S. ; Omura Y. ; Summers D. ; Kletzing C.A.
刊名: Geophysical Research Letters
ISSN: 0094-8521
EISSN: 1944-8252
出版年: 2016
卷: 43, 期: 19 起始页码: 10040
结束页码: 10049
语种: 英语
英文关键词: magnetospheric dynamics
; nonlinear wave growth theory
; plasma wave
; plasmaspheric hiss
; whistler-mode chorus
Scopus关键词: Bandpass filters
; Magnetosphere
; Plasma waves
; Growth theory
; Instantaneous frequency
; Magnetospheric dynamics
; Non-linear theory
; Nonlinear transition
; Observation point
; Plasmaspheric hiss
; Whistler-mode chorus
; Atmospherics
英文摘要: We test the recently developed nonlinear wave growth theory of plasmaspheric hiss against discrete rising tone elements of hiss emissions observed by the Van Allen Probes. From the phase variation of the waveforms processed by bandpass filters, we calculate the instantaneous frequencies and wave amplitudes. We obtain the theoretical relation between the wave amplitude and frequency sweep rates at the observation point by applying the convective growth rates and dispersion factors to the known relation at the equator. By plotting the theoretical relation over scatterplots of the wave amplitudes and the frequency sweep rates for rising tone elements, we find good agreement between the hiss observations and the nonlinear theory. We also find that the duration periods of the hiss elements are in good agreement with the nonlinear transition time necessary for the formation of a resonant current through coherent nonlinear wave-particle interactions. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990874012&doi=10.1002%2f2016GL070333&partnerID=40&md5=8fe156a01d16888229328a48cc6b89d4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9484
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: Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan
Recommended Citation:
Nakamura S.,Omura Y.,Summers D.,et al. Observational evidence of the nonlinear wave growth theory of plasmaspheric hiss[J]. Geophysical Research Letters,2016-01-01,43(19).