Generation of different long-period geomagnetic pulsations during a sudden impulse

doi:10.1134/S001095251504005X

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	Generation of different long-period geomagnetic pulsations during a sudden impulse
	Moiseyev, A. V.1; Popov, V. I.2; Mullayarov, V. A.1,2; Samsonov, S. N.1; Du, A.3; Yoshikawa, A.4
刊名	COSMIC RESEARCH
	2015-07-01
卷号	53 期号:4 页码:257-266
DOI	10.1134/S001095251504005X
文献子类	Article
英文摘要	The space-time characteristics of geomagnetic pulsations during a sudden impulse on August 4, 2010 have been analyzed using ground-based and satellite observations. It has been indicated that two types of geomagnetic pulsations with different spatial extensions, oscillation frequencies, and generations were observed at that time. It has been found that geomagnetic pulsations with identical oscillation frequencies (similar to 4.5 mHz) at different latitudes were observed, with a maximal amplitude in the dusk sector. Oscillations with close frequencies were registered in the solar wind in the IMF B (z) component. Higher-frequency (7-10 mHz) pulsations dependent on latitude were registered on the dawn side. It is assumed that geomagnetic pulsations with frequencies of similar to 4.5 mHz were caused by oscillations penetrating from the interplanetary medium, and higher-frequency pulsations were Alfv,n resonance oscillations generated during the compression of the magnetosphere. An asymmetric oscillation amplitude distribution relative to noon was caused by the IMF orthospiral orientation in this event.
WOS关键词	INTERPLANETARY MAGNETIC-FIELD ; INITIAL PHASE ; STORM
WOS研究方向	Engineering ; Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000358260600001
资助机构	Russian Foundation for Basic Research(13-05-00363 ; Russian Foundation for Basic Research(13-05-00363 ; 15-45-05108) ; 15-45-05108) ; Russian Foundation for Basic Research(13-05-00363 ; Russian Foundation for Basic Research(13-05-00363 ; 15-45-05108) ; 15-45-05108)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62326]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位	1.Russian Acad Sci, Yu G Shafer Inst Cosmophys Res & Aeron, Siberian Branch, Yakutsk 677007, Russia 2.Ammosov Northeastern Fed Univ, Yakutsk, Russia 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 4.Kyushu Univ, Int Ctr Space Weather Sci & Educ, Fukuoka 812, Japan
推荐引用方式 GB/T 7714	Moiseyev, A. V.,Popov, V. I.,Mullayarov, V. A.,et al. Generation of different long-period geomagnetic pulsations during a sudden impulse[J]. COSMIC RESEARCH,2015,53(4):257-266.
APA	Moiseyev, A. V.,Popov, V. I.,Mullayarov, V. A.,Samsonov, S. N.,Du, A.,&Yoshikawa, A..(2015).Generation of different long-period geomagnetic pulsations during a sudden impulse.COSMIC RESEARCH,53(4),257-266.
MLA	Moiseyev, A. V.,et al."Generation of different long-period geomagnetic pulsations during a sudden impulse".COSMIC RESEARCH 53.4(2015):257-266.