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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
Source PublicationASTRONOMICAL JOURNAL
2016-03-01
Volume151Issue:3Pages:1-18
DOI10.3847/0004-6256/151/3/70
Contribution Rank第1完成单位
Indexed BySCI
KeywordMethods: Data Analysis Sun: Magnetic Fields Sunspots
Abstract

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.

Funding ProjectSpecialized 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] ; National Natural Science Foundation of China (NSFC)[11503082] ; National Natural Science Foundation of China (NSFC)[11463003]
Funding OrganizationSpecialized 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]
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
Archive Date2016-12-30
WOS IDWOS:000371249100022
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordNORTH-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
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9351
Collection抚仙湖太阳观测站
Corresponding AuthorQu, Z. N.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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..(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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