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The Long-term Behavior of the North-South Asymmetry of Sunspot Activity
Li KJ(李可军)1; Gao PX(高朋鑫)1,2; Zhan, LS3; Li, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊SOLAR PHYSICS
2009-01
卷号254期号:1页码:145-154
DOI10.1007/s11207-008-9284-7
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收录类别SCI
关键词Sunspots Statistics Solar Cycle Observations
摘要A new index, the cumulative difference of sunspot activity in the northern and southern hemispheres, respectively, is proposed to describe the long-term behavior of the North-South asymmetry of sunspot activity and to show the balance (or bias) of sunspot activity in the two solar hemispheres on a long-term scale. Sunspot groups and sunspot areas from June 1874 to January 2007 are used to show the advantage of the index. The index clearly shows a long-term characteristic time scale of about 12 cycles in the North South asymmetry of sunspot activity. Sunspot activity is found to dominate in the southern hemisphere in cycle 23, and in cycle 24 it is predicted to dominate still in the southern hemisphere. A comparison of the new index with other similar indexes is also given.
项目资助者Natural Science Funds of China [40636031, 10573034] ; 973 project [2006CB806300] ; Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0038-0938
URL查看原文
归档日期2009-01-05
WOS记录号WOS:000261577100009
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]N-S ASYMMETRY ; SOLAR DIFFERENTIAL ROTATION ; H-ALPHA FLARES ; NUMBERS R-N ; STATISTICAL-ANALYSIS ; ACTIVITY CYCLES ; SOLAR-CYCLE-23 ; INDEX ; PHASE ; PERIODICITIES
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被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6153
专题太阳物理研究组
通讯作者Li, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming, 650011, China
2.Graduate School of CAS, Beijing, 100863, China
3.Jingdezhen Ceramic Institute, Jingdezhan, 333001, Jiangxi, China
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Li KJ,Gao PX,Zhan, LS,et al. The Long-term Behavior of the North-South Asymmetry of Sunspot Activity[J]. SOLAR PHYSICS,2009,254(1):145-154.
APA Li KJ,Gao PX,Zhan, LS,&Li, KJ .(2009).The Long-term Behavior of the North-South Asymmetry of Sunspot Activity.SOLAR PHYSICS,254(1),145-154.
MLA Li KJ,et al."The Long-term Behavior of the North-South Asymmetry of Sunspot Activity".SOLAR PHYSICS 254.1(2009):145-154.
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