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Global features of Kelvin-Helmholtz waves at the magnetopause for northward interplanetary magnetic field
Li, Wenya; Wang, Chi; Tang, Binbin; Guo, Xiaocheng; Lin, Dong; Wang, C (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab SpaceWeather, 1 Nanertiao,POB 8701, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2013
Volume118Issue:8Pages:5118-5126
ISSN2169-9380
Language英语
KeywordKelvin-helmholtz Instability Global Feature Magnetopause Boundary Layer Magnetosphere
AbstractWe investigate the global features of Kelvin-Helmholtz waves (KHW) at the low-latitude magnetopause for constant northward interplanetary magnetic field conditions, using global magnetohydrodynamic simulations. The root-integrated power (RIP) of X component of bulk velocity is employed to analyze the magnetopause mode of KHW along the boundary layer. The RIP distribution of the outer KHW is much broader than that of the inner one, and the maximum amplitude of global KHW occurs near the dawn/dusk terminator regions. In the dayside magnetopause, the phase of the waveform at middle latitudes leads to that at low latitudes, while the situation reversed in the nightside. The global evolution of KHW phases is a representation of an interesting feature that the axis of the Kelvin-Helmholtz vortex aligns with the geomagnetic field lines. We suggest that the reported features may also exist in other KHW active regions with flow-sheared plasma.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5050
Collection空间科学部
Corresponding AuthorWang, C (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab SpaceWeather, 1 Nanertiao,POB 8701, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Li, Wenya,Wang, Chi,Tang, Binbin,et al. Global features of Kelvin-Helmholtz waves at the magnetopause for northward interplanetary magnetic field[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2013,118(8):5118-5126.
APA Li, Wenya,Wang, Chi,Tang, Binbin,Guo, Xiaocheng,Lin, Dong,&Wang, C .(2013).Global features of Kelvin-Helmholtz waves at the magnetopause for northward interplanetary magnetic field.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,118(8),5118-5126.
MLA Li, Wenya,et al."Global features of Kelvin-Helmholtz waves at the magnetopause for northward interplanetary magnetic field".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 118.8(2013):5118-5126.
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