DOI: 10.1002/2014GL061260
论文题名: Evidence of stronger pitch angle scattering loss caused by oblique whistler-mode waves as compared with quasi-parallel waves
作者: Li W. ; Mourenas D. ; Artemyev A.V. ; Agapitov O.V. ; Bortnik J. ; Albert J.M. ; Thorne R.M. ; Ni B. ; Kletzing C.A. ; Kurth W.S. ; Hospodarsky G.B.
刊名: Geophysical Research Letters
ISSN: 0094-9817
EISSN: 1944-9548
出版年: 2014
卷: 41, 期: 17 起始页码: 6063
结束页码: 6070
语种: 英语
Scopus关键词: Normal distribution
; Plasma theory
; Probes
; Electron measurements
; Equatorial planes
; Experimental evidence
; Numerical calculation
; Pitch-angle scattering
; Polar orbiting environmental satellites
; Wave amplitudes
; Whistler-mode waves
; Magnetoplasma
; altitude
; amplitude
; magnetic field
; measurement method
; satellite imagery
; scattering
; wave
英文摘要: Wave normal distributions of lower-band whistler-mode waves observed outside the plasmapause exhibit two peaks: one near the parallel direction and the other at very oblique angles. We analyze a number of conjunction events between the Van Allen Probes near the equatorial plane and Polar Orbiting Environmental Satellites (POES) at conjugate low altitudes, where lower-band whistler-mode wave amplitudes were inferred from the two-directional POES electron measurements over 30-100 keV, assuming that these waves were quasi-parallel. For conjunction events, the wave amplitudes inferred from the POES electron measurements were found to be overestimated as compared with the Van Allen Probes measurements primarily for oblique waves and quasi-parallel waves with small wave amplitudes (< ~20 pT) measured at low latitudes. This provides plausible experimental evidence of stronger pitch angle scattering loss caused by oblique waves than by quasi-parallel waves with the same magnetic wave amplitudes, as predicted by numerical calculations. © 2014. American Geophysical Union.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84906803231&doi=10.1002%2f2014GL061260&partnerID=40&md5=8b8e8b257a72328d00df6ad17656a64c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7081
Appears in Collections: 气候减缓与适应
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作者单位: Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States
Recommended Citation:
Li W.,Mourenas D.,Artemyev A.V.,et al. Evidence of stronger pitch angle scattering loss caused by oblique whistler-mode waves as compared with quasi-parallel waves[J]. Geophysical Research Letters,2014-01-01,41(17).