DOI: 10.1002/2016GL068147
论文题名: Compressible turbulence with slow-mode waves observed in the bursty bulk flow of plasma sheet
作者: Wang T. ; Cao J. ; Fu H. ; Meng X. ; Dunlop M.
刊名: Geophysical Research Letters
ISSN: 0094-9298
EISSN: 1944-9029
出版年: 2016
卷: 43, 期: 5 起始页码: 1854
结束页码: 1861
语种: 英语
英文关键词: bursty bulk flow
; multiscale
; plasma sheet
; probability density function
; slow waves
; turbulence
Scopus关键词: Energy transfer
; Magnetic fields
; Magnetism
; Magnetoplasma
; Plasma density
; Plasma flow
; Plasma jets
; Plasma sheaths
; Plasma turbulence
; Probability density function
; Turbulence
; Bursty bulk flow
; Compressible turbulence
; Dispersion relations
; Magnetic field strengths
; Multiscale
; Plasma sheet
; Slow wave
; Turbulence energy
; Magnetohydrodynamics
英文摘要: In this paper, we report the evidence of compressible turbulence with slow-mode waves in a bursty bulk flow of plasma sheet. This compressible turbulence is characterized by a multiscale (1-60 s) anticorrelation between plasma density and magnetic field strength. Besides, the magnetic compressibility spectrum stays nearly constant at all the measured frequencies. Furthermore, the turbulence energy distributions are anisotropic with k⊥ > k//, and the dispersion relation is consistent with slow-mode prediction. The fluctuations of density and magnetic field have similar double slope spectrum and kurtosis. These results suggest that the slow waves are involved in the intermittent turbulence cascade from MHD to ion kinetic scales, which may have significant implications for the energy transfer in the plasma sheet. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960390732&doi=10.1002%2f2016GL068147&partnerID=40&md5=1cf0ed9529472358f31be539e184c5de
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10261
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: School of Space and Environment, Beihang University, Beijing, China
Recommended Citation:
Wang T.,Cao J.,Fu H.,et al. Compressible turbulence with slow-mode waves observed in the bursty bulk flow of plasma sheet[J]. Geophysical Research Letters,2016-01-01,43(5).