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Investigation of Sunspot Area Varying with Sunspot Number
Li KJ(李可军)1,2,3; Li FY(李富羽)1,4; Zhang J(张娟)1,4; Feng, W5,6; Li, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊SOLAR PHYSICS
2016-11
卷号291期号:9-10页码:2917-2930
DOI10.1007/s11207-016-1010-2
产权排序第1完成单位
收录类别SCI
关键词Sunspots Statistics Solar Cycle Observations
摘要The statistical relationship between sunspot area (SA) and sunspot number (SN) is investigated through analysis of their daily observation records from May 1874 to April 2015. For a total of 1607 days, representing 3 % of the total interval considered, either SA or SN had a value of zero while the other parameter did not. These occurrences most likely reflect the report of short-lived spots by a single observatory and subsequent averaging of zero values over multiple stations. The main results obtained are as follows: i) The number of spotless days around the minimum of a solar cycle is statistically negatively correlated with the maximum strength of solar activity of that cycle. ii) The probability distribution of SA generally decreases monotonically with SA, but the distribution of SN generally increases first, then it decreases as a whole. The different probability distribution of SA and SN should strengthen their non-linear relation, and the correction factor [k] in the definition of SN may be one of the factors that cause the non-linearity. iii) The non-linear relation of SA and SN indeed exists statistically, and it is clearer during the maximum epoch of a solar cycle.
项目资助者973 program [2012CB957801] ; National Natural Science Foundation of China [11573065, 11633008, 11273057] ; Specialized Research Fund for State Key Laboratories ; 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2016-12-12
WOS记录号WOS:000388842600021
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SOLAR-CYCLE ; UNIT AREA
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被引频次:2[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/114a53/9840
专题太阳物理研究组
通讯作者Li, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, China
2.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing, China
4.University of Chinese Academy of Sciences, Beijing, China
5.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming, China
6.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) Ministry of Education, Nanjing, China
推荐引用方式
GB/T 7714
Li KJ,Li FY,Zhang J,et al. Investigation of Sunspot Area Varying with Sunspot Number[J]. SOLAR PHYSICS,2016,291(9-10):2917-2930.
APA Li KJ,Li FY,Zhang J,Feng, W,&Li, KJ .(2016).Investigation of Sunspot Area Varying with Sunspot Number.SOLAR PHYSICS,291(9-10),2917-2930.
MLA Li KJ,et al."Investigation of Sunspot Area Varying with Sunspot Number".SOLAR PHYSICS 291.9-10(2016):2917-2930.
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