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SYSTEMATIC REGULARITY OF HEMISPHERIC SUNSPOT AREAS OVER THE PAST 140 YEARS
Deng LH(邓林华)1,2,3,4; Xiang YY(向永源)1,4; Qu, Z. N.5; An, J. M.6; Qu, ZN (reprint author), Sichuan Univ Sci & Engn, Sch Sci, Dept Phys, Zigong 643000, Peoples R China.
发表期刊ASTRONOMICAL JOURNAL
2016-03-01
卷号151期号:3页码:1-18
DOI10.3847/0004-6256/151/3/70
产权排序第1完成单位
收录类别SCI
关键词Methods: Data Analysis Sun: Magnetic Fields Sunspots
摘要Solar magnetic activity varies with time in the two hemispheres in different ways. The hemispheric interconnection of solar activity phenomena provides an important clue to understanding the dynamical behavior of solar dynamo actions. In this paper, several analysis approaches are proposed to analyze the systematic regularity of hemispheric asynchronism and amplitude asymmetry of long-term sunspot areas during solar cycles 9-24. It is found that, (1) both the hemispheric asynchronism and the amplitude asymmetry of sunspot areas are prevalent behaviors and are not anomalous, but the hemispheric asynchronism exhibits a much more regular behavior than the amplitude asymmetry; (2) the phase-leading hemisphere returns back to the identical hemisphere every 8 solar cycles, and the secular periodic pattern of hemispheric phase differences follows 3 (south leading) + 5 (north leading) solar cycles, which probably corresponds to the Gleissberg cycle; and (3) the pronounced periodicities of (absolute and normalized) asymmetry indices and lines of synchronization (LOSs) are not identical: the significant periodic oscillations are 80.65 +/- 6.31, 20.91 +/- 0.40, and 13.45 +/- 0.16 years for the LOS values, and 51.34 +/- 2.48, 8.83/8.69 +/- 0.07, and 3.77 +/- 0.02 years for the (absolute and normalized) asymmetry indices. The analysis results improve our knowledge on the hemispheric interrelation of solar magnetic activity and may provide valuable constraints for solar dynamo models.
项目资助者Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences "Light of West China" Program ; Yunnan Science Foundation of China(2015FB192) ; open research program of Key Laboratory of Solar Activity of Chinese Academy of Sciences(KLSA201503) ; Found of Sichuan University of Science and Engineering(2015RC43) ; National Natural Science Foundation of China (NSFC)(U1531140, 11503082, 11463003)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6256
URL查看原文
归档日期2016-12-30
WOS记录号WOS:000371249100022
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]NORTH-SOUTH ASYMMETRY ; TOTAL SOLAR IRRADIANCE ; CORONAL MASS EJECTIONS ; POLAR FIELD REVERSALS ; LOW-DIMENSIONAL CHAOS ; LONG-TERM VARIATIONS ; N-S ASYMMETRY ; TIME-SERIES ; FLARE INDEX ; MAUNDER MINIMUM
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9351
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通讯作者Qu, ZN (reprint author), Sichuan Univ Sci & Engn, Sch Sci, Dept Phys, Zigong 643000, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, P.R. China
2.Sate Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, P.R. China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, P.R. China
4.University of Chinese Academy of Sciences, Beijing 100049, P.R. China
5.Department of Physics, School of Science, Sichuan University of Science & Engineering, Zigong 643000, P.R. China
6.School of Software Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, P.R. China
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Deng LH,Xiang YY,Qu, Z. N.,et al. SYSTEMATIC REGULARITY OF HEMISPHERIC SUNSPOT AREAS OVER THE PAST 140 YEARS[J]. ASTRONOMICAL JOURNAL,2016,151(3):1-18.
APA Deng LH,Xiang YY,Qu, Z. N.,An, J. M.,&Qu, ZN .(2016).SYSTEMATIC REGULARITY OF HEMISPHERIC SUNSPOT AREAS OVER THE PAST 140 YEARS.ASTRONOMICAL JOURNAL,151(3),1-18.
MLA Deng LH,et al."SYSTEMATIC REGULARITY OF HEMISPHERIC SUNSPOT AREAS OVER THE PAST 140 YEARS".ASTRONOMICAL JOURNAL 151.3(2016):1-18.
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