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 | |
刊名 | SOLAR PHYSICS |
2016-11 | |
卷号 | 291期号:9-10页码:2917-2930 |
关键词 | Sunspots, statistics Solar cycle, observations |
ISSN号 | 0038-0938 |
DOI | 10.1007/s11207-016-1010-2 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | 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. |
学科主题 | 天文学 ; 太阳与太阳系 |
URL标识 | 查看原文 |
出版地 | VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS |
资助项目 | 973 program[2012CB957801] ; National Natural Science Foundation of China[11573065] ; National Natural Science Foundation of China[11633008] ; National Natural Science Foundation of China[11273057] ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences |
WOS关键词 | SOLAR-CYCLE ; UNIT AREA |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000388842600021 |
资助机构 | 973 program[2012CB957801] ; National Natural Science Foundation of China[11573065, 11633008, 11273057] ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/9840] |
专题 | 云南天文台_太阳物理研究组 |
通讯作者 | Li KJ(李可军) |
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.(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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