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Relative phase analyses of long-term hemispheric solar flare activity
Li KJ(李可军)1,2; Gao PX(高朋鑫)1,3; Zhan, LS4; Shi XJ(石祥军)1,3; Zhu WW(朱玮文)1,3; Li, KJ (reprint author), CAS, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2010
Volume401Issue:1Pages:342-346
DOI10.1111/j.1365-2966.2009.15639.x
Contribution Rank第1完成单位
Indexed BySCI
KeywordMethods: Data Analysis Sun: Activity Sun: Flares
AbstractWavelet transform methods, including the continuous wavelet transform, cross-wavelet transform and wavelet coherence, have been proposed to investigate the phase synchrony of the monthly mean flare indices in the time interval 1966 January-2007 December in the solar northern and southern hemispheres, respectively. The Schwabe cycle is the only period of statistical significance, and its mean value is 10.7 yr for the monthly mean flare indices in the northern hemisphere but slightly smaller, 10.1 yr, in the southern hemisphere - this should lead to phase asynchrony between the two. Both the cross-wavelet transform and wavelet coherence analyses show asynchronous behaviour with strong phase mixing in the high-frequency components of hemispheric flare activity, and strong synchronous behaviour with coherent phase angles in the low-frequency components, corresponding to the period-scales around the Schwabe cycle. The northern flare activity should lead the southern for the low-frequency components.
Funding OrganizationNSFC [10873032, 10921303, 40636031] ; National Key Research Science Foundation [2006CB806303] ; Chinese Academy of Sciences
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
Archive Date2010-01-05
WOS IDWOS:000272867100045
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordWAVELET ANALYSIS ; SUNSPOT ACTIVITY ; SYNCHRONIZATION ; COHERENCE
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6169
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), CAS, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
3.School of Graduate, CAS, Beijing, China
4.Jingdezhen Ceramic Institute, Jingdezhen 333001, Jiangxi, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Gao PX,Zhan, LS,et al. Relative phase analyses of long-term hemispheric solar flare activity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,401(1):342-346.
APA Li KJ,Gao PX,Zhan, LS,Shi XJ,Zhu WW,&Li, KJ .(2010).Relative phase analyses of long-term hemispheric solar flare activity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,401(1),342-346.
MLA Li KJ,et al."Relative phase analyses of long-term hemispheric solar flare activity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 401.1(2010):342-346.
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