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Solar activity in extended cycles
Li KJ(李可军)1,2,3; Yun, HS1,3; Liang HF(梁红飞)1,4; Gu XM(顾啸马)1,4; Li, KJ (reprint author), Natl Astron Observ, Beijing, Peoples R China.
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2002-07
卷号107期号:A7
DOI10.1029/2001JA000072
产权排序第1完成单位
收录类别SCI
关键词Solar Activity Cycle Sunspot Prediction Of Solar Activity
摘要[1] It is well known that the first sunspot groups of a new cycle appear before sunspot minimum and continue to emerge for 12 or more years, ending after the following minimum. The period of time over which activity belonging to a specific cycle is observed is called the "extended activity cycle.'' A criterion for differentiating sunspot groups into their proper solar cycles during the overlapping, transitional period is proposed. The monthly sunspot group numbers during each extended activity cycle are constructed to show characteristics of solar activity for them. On the basis of the defining characteristics we estimate the conventional start of the beginning time of sunspot cycle 24 (the next cycle) to occur similar to2007.2 +/- 1 year, at the 68% percent level of confidence.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0148-0227
URL查看原文
归档日期2002-10-09
WOS记录号WOS:000178982500035
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SUNSPOT CYCLE ; MINIMUM
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6051
专题太阳物理研究组
通讯作者Li, KJ (reprint author), Natl Astron Observ, Beijing, Peoples R China.
作者单位1.Yunnan Observatory, Kunming, China
2.National Astronomical Observatories, Beijing, China.
3.Astronomy Program, SEES, Seoul National University, Seoul, Korea
4.United Laboratory of Optical Astronomy, CAS, China
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GB/T 7714
Li KJ,Yun, HS,Liang HF,et al. Solar activity in extended cycles[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2002,107(A7).
APA Li KJ,Yun, HS,Liang HF,Gu XM,&Li, KJ .(2002).Solar activity in extended cycles.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,107(A7).
MLA Li KJ,et al."Solar activity in extended cycles".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 107.A7(2002).
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