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Statistical properties of solar H alpha flare activity
Deng LH(邓林华)1,2,3; Zhang XJ(张小娟)1,5; An, Jianmei4; Cai YF(蔡云芳)1,5; Deng, Linhua(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China)
2017-12-22
发表期刊JOURNAL OF SPACE WEATHER AND SPACE CLIMATE
ISSN2115-7251
卷号7
产权排序第1完成单位
摘要Magnetic field structures on the solar atmosphere are not symmetric distribution in the northern and southern hemispheres, which is an important aspect of quasi-cyclical evolution of magnetic activity indicators that are related to solar dynamo theories. Three standard analysis techniques are applied to analyze the hemispheric coupling (north-south asymmetry and phase asynchrony) of monthly averaged values of solar Ha flare activity over the past 49 years (from 1966 January to 2014 December). The prominent results are as follows: (1) from a global point of view, solar Ha flare activity on both hemispheres are strongly correlated with each other, but the northern hemisphere precedes the southern one with a phase shift of 7 months; (2) the long-range persistence indeed exists in solar Ha flare activity, but the dynamical complexities in the two hemispheres are not identical; (3) the prominent periodicities of Ha flare activity are 17 years full-disk activity cycle and 11 years Schwabe solar cycle, but the short-and mid-term periodicities cannot determined by monthly time series; (4) by comparing the non-parametric rescaling behavior on a point-by-point basis, the hemispheric asynchrony of solar Ha flare activity are estimated to be ranging from several months to tens of months with an average value of 8.7 months. The analysis results could promote our knowledge on the long-range persistence, the quasi-periodic variation, and the hemispheric asynchrony of solar Ha flare activity on both hemispheres, and possibly provide valuable information for the hemispheric interrelation of solar magnetic activity.
关键词Solar Activity Cycle h Alpha Flare Index Statistical Analysis
学科领域天文学
DOI10.1051/swsc/2017038
项目资助者Joint Research Fund in Astronomy(U1531140) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Youth Innovation Promotion Association CAS ; CAS "Light of West China" Program ; Yunnan Science Foundation of China(2015FB192) ; open research program of CAS Key Laboratory of Solar Activity(KLSA201709) ; Key Laboratory of Geospace Environment, CAS, University of Science & Technology of China
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收录类别SCI
语种英语
文章类型Article
WOS研究方向Astronomy & Astrophysics ; Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS标题词Science & Technology ; Physical Sciences
WOS类目Astronomy & Astrophysics ; Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS记录号WOS:000418429500001
关键词[WOS]NORTH-SOUTH ASYMMETRY ; LOW-DIMENSIONAL CHAOS ; TIME-SERIES ; SUNSPOT ACTIVITY ; RECURRENCE QUANTIFICATION ; HEMISPHERIC-ASYMMETRY ; ACTIVITY CYCLE ; SPACED DATA ; INDEX ; DYNAMO
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12194
专题抚仙湖太阳观测站
通讯作者Deng, Linhua(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, PR China
2.Key Laboratory of Geospace Environment, Chinese Academy of Sciences, University of Science & Technology of China, Hefei 230026, PR China
3.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, PR China
4.School of Software Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, PR China
5.University of Chinese Academy of Sciences, Beijing 100049, PR China
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GB/T 7714
Deng LH,Zhang XJ,An, Jianmei,et al. Statistical properties of solar H alpha flare activity[J]. JOURNAL OF SPACE WEATHER AND SPACE CLIMATE,2017,7.
APA Deng LH,Zhang XJ,An, Jianmei,Cai YF,&Deng, Linhua.(2017).Statistical properties of solar H alpha flare activity.JOURNAL OF SPACE WEATHER AND SPACE CLIMATE,7.
MLA Deng LH,et al."Statistical properties of solar H alpha flare activity".JOURNAL OF SPACE WEATHER AND SPACE CLIMATE 7(2017).
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