Phase asynchrony of hemispheric flare activity revisited: empirical mode decomposition and wavelet transform analyses

	Phase asynchrony of hemispheric flare activity revisited: empirical mode decomposition and wavelet transform analyses
	Deng LH(邓林华)1,2 ; Gai, N3 ; Tang, YK3 ; Xu, CL4 ; Huang, WJ5
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2013-01
卷号	343 期号:1 页码:27-32
关键词	Sun: activity Sun: flares Methods: data analysis
ISSN号	0004-640X
通讯作者	Deng, LH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	The phase relation of flare index in the northern and southern hemispheres in the time interval of January 1966 to December 2008 is investigated. It is found that, (1) the flare index in the northern hemisphere begin six months earlier than that in the southern one, which should lead to phase asynchrony between them but with a slight effect; (2) the main periods of the flare activity in the two hemispheres slightly differ from each other, which should also lead to phase asynchrony between them; (3) the low-frequency modes of the flare activity can be used to study the varying relationship of long-term solar activities and the high-frequency modes can be considered as the stochastic component that is amplitude modulated.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	NORTH-SOUTH ASYMMETRY ; HILBERT SPECTRUM ; SUNSPOT NUMBERS ; SOLAR-ACTIVITY ; POLAR FACULAE ; CYCLES 19-23 ; PERIODICITY ; ROTATION
收录类别	SCI
原文出处	http://link.springer.com/article/10.1007%2Fs10509-012-1231-2
语种	英语
WOS记录号	WOS:000313294500005
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4699]
专题	云南天文台_抚仙湖太阳观测站
作者单位	1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011, Kunming, P.R. China 2.Graduate School of the Chinese Academy of Sciences, Sijing-Shan Block, 100049, Beijing, P.R. China 3.Department of Physics, Dezhou University, 253023, Dezhou, P.R. China 4.Department of Mathematics, Yunnan Normal University, 650092, Kunming, P.R. China 5.Oxbridge College, Kunming University of Science and Technology, 650106, Kunming, P.R. China
推荐引用方式 GB/T 7714	Deng LH,Gai, N,Tang, YK,et al. Phase asynchrony of hemispheric flare activity revisited: empirical mode decomposition and wavelet transform analyses[J]. ASTROPHYSICS AND SPACE SCIENCE,2013,343(1):27-32.
APA	Deng LH,Gai, N,Tang, YK,Xu, CL,&Huang, WJ.(2013).Phase asynchrony of hemispheric flare activity revisited: empirical mode decomposition and wavelet transform analyses.ASTROPHYSICS AND SPACE SCIENCE,343(1),27-32.
MLA	Deng LH,et al."Phase asynchrony of hemispheric flare activity revisited: empirical mode decomposition and wavelet transform analyses".ASTROPHYSICS AND SPACE SCIENCE 343.1(2013):27-32.