Investigation of Sunspot Area Varying with Sunspot Number
文献类型：期刊论文
| 作者 | Li, K. J.1,2,3 ; Li, F. Y.1,4; Zhang, J.1,4; Feng, W.5,6
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| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2016-11-01 |
| 卷号 | 291期号:9-10页码:2917-2930 |
| 关键词 | Sunspots, statistics Solar cycle, observations |
| 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SOLAR-CYCLE ; UNIT AREA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000388842600021 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6826]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China 2.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Peoples R China 6.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, K. J.,Li, F. Y.,Zhang, J.,et al. Investigation of Sunspot Area Varying with Sunspot Number[J]. SOLAR PHYSICS,2016,291(9-10):2917-2930. |
| APA | Li, K. J.,Li, F. Y.,Zhang, J.,&Feng, W..(2016).Investigation of Sunspot Area Varying with Sunspot Number.SOLAR PHYSICS,291(9-10),2917-2930. |
| MLA | Li, K. J.,et al."Investigation of Sunspot Area Varying with Sunspot Number".SOLAR PHYSICS 291.9-10(2016):2917-2930. |
入库方式： OAI收割
来源：国家天文台
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