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Asymmetry of solar activity in cycle 23
Li KJ(李可军)1; Chen HD(陈华东)1,2; Zhan, LS3; Li QX(李启秀)1,2; Gao PX(高朋鑫)1,2; Mu J(穆军)1,2; Shi XJ(石祥军)1,2; Zhu WW(朱玮文)1,2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2009-04-01
卷号114
ISSN号0148-0227
通讯作者Li, KJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110,Kunming E Suburb, Kunming 650011, Peoples R China.
产权排序第一完成单位
英文摘要Using sunspot groups and sunspot areas from May 1996 to February 2007, we find that solar activity for cycle 23 is dominant in the southern hemisphere, and our results enhance the inferred but uncertain conclusions obtained before. They are as follows: (1) each four cycles, the slope of the fitting straight lines of north-south asymmetry values changes its sign, and (2) the asymmetry signs of solar activity at both the low (>0 degrees - <10 degrees) and high (>= 25 degrees - <= 90 degrees) latitudinal bands are always the same but sometimes differ at the middle latitudinal band (>= 10 degrees - <25 degrees). When the former two are the same as the latter, solar activity is asymmetrically distributed in the hemispheres but symmetrically distributed when the former two differ from the latter. Moreover, asymmetry values of solar activity for the whole disk are always located between the first two and the latter and seem to be the averages of the first two and the latter, suggesting that the asymmetry of solar activity may be a function of latitude. In the forthcoming cycle 24, asymmetry of solar activity is inferred as being similar to cycle 12, and solar activity should remain dominant in the southern hemisphere.
学科主题Astronomy & Astrophysics
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]NORTH-SOUTH ASYMMETRY ; N-S ASYMMETRY ; H-ALPHA FLARES ; NUMBERS R-N ; DIFFERENTIAL ROTATION ; STATISTICAL-ANALYSIS ; SUNSPOT GROUPS ; INDEX ; SOLAR-CYCLE-23 ; CATALOG
收录类别SCI
原文出处http://onlinelibrary.wiley.com/doi/10.1029/2009JA014061/abstract
语种英语
WOS记录号WOS:000264865500002
公开日期2016-05-03
内容类型期刊论文
源URL[http://ir.ynao.ac.cn/handle/114a53/6141]  
专题云南天文台_太阳物理研究组
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, China
2.School of Graduate, Chinese Academy of Sciences, Beijing, China
3.The Center of Advanced Education Technique, Jingdezhen Ceramic Institute, Jingdezhen, Jiangxi, China
推荐引用方式
GB/T 7714
Li KJ,Chen HD,Zhan, LS,et al. Asymmetry of solar activity in cycle 23[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2009,114.
APA Li KJ.,Chen HD.,Zhan, LS.,Li QX.,Gao PX.,...&Zhu WW.(2009).Asymmetry of solar activity in cycle 23.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,114.
MLA Li KJ,et al."Asymmetry of solar activity in cycle 23".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 114(2009).
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