Daysidemagnetospheric ULF wave frequency modulated by a solar wind   dynamic pressure negative impulse

doi:10.1002/2016JA023351

CORC > 北京大学 > 地球与空间科学学院

	Daysidemagnetospheric ULF wave frequency modulated by a solar wind dynamic pressure negative impulse
	Shen, X. C. ; Shi, Q. Q. ; Zong, Q.G. ; Tian, A. M. ; Nowada, M. ; Sun, W. J. ; Zhao, H. Y. ; Hudson, M. K. ; Wang, H. Z. ; Fu, S. Y. ; Pu, Z. Y.
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2017
关键词	FIELD LINE RESONANCES THEMIS OBSERVATIONS SUDDEN IMPULSE MAGNETOSPHERE PULSATIONS ELECTRONS MAGNETOPAUSE SPACECRAFT EVENTS AURORA
DOI	10.1002/2016JA023351
英文摘要	Ultralow frequency (ULF) waves play an important role in the transport of the solar wind energy to the magnetosphere. In this paper, we present a ULF wave event in the dayside magnetosphere which shows a sudden decrease in frequency from 3.1 to 2.3 mHz around 0756 UT on 11 January 2010, when a solar wind dynamic pressure drop (from similar to 5 to similar to 2 nPa) was observed simultaneously. The wave exits globally. The phase differences between electric and magnetic fields indicate that the compressional mode wave is standing before and after the wave frequency decrease. This result suggests that the ULF wave should be associated with a cavity mode and the frequency decrease might be induced by the change of the cavity size. A theoretical calculation was made to estimate the cavity mode frequency. The calculated wave frequency before/after the negative impulse is 3.8/2.6 mHz, which is consistent with the observations.; National Natural Science Foundation of China [41574157, 41304129, 41322031, 41628402]; SCI(E); ARTICLE; 2; 1658-1669; 122
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475353]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Shen, X. C.,Shi, Q. Q.,Zong, Q.G.,et al. Daysidemagnetospheric ULF wave frequency modulated by a solar wind dynamic pressure negative impulse[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2017.
APA	Shen, X. C..,Shi, Q. Q..,Zong, Q.G..,Tian, A. M..,Nowada, M..,...&Pu, Z. Y..(2017).Daysidemagnetospheric ULF wave frequency modulated by a solar wind dynamic pressure negative impulse.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS.
MLA	Shen, X. C.,et al."Daysidemagnetospheric ULF wave frequency modulated by a solar wind dynamic pressure negative impulse".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS (2017).