Synchronization of Sunspot Numbers and Sunspot Areas
文献类型：期刊论文
| 作者 | Li KJ(李可军)1 ; Gao PX(高朋鑫)1,2; Zhan, LS3
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| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2009-04 |
| 卷号 | 255期号:2页码:289-300 |
| 关键词 | Sunspots Solar cycle statistics observations |
| ISSN号 | 0038-0938 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Li, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Sunspot activity is usually described by either sunspot numbers or sunspot areas. The smoothed monthly mean sunspot numbers (SNs) and the smoothed monthly mean areas (SAs) in the time interval from November 1874 to September 2007 are used to analyze their phase synchronization. Both the linear method (fast Fourier transform) and some nonlinear approaches (continuous wavelet transform, cross-wavelet transform, wavelet coherence, cross-recurrence plot, and line of synchronization) are utilized to show the phase relation between the two series. There is a high level of phase synchronization between SNs and SAs, but the phase synchronization is detected only in their low-frequency components, corresponding to time scales of about 7 to 12 years. Their high-frequency components show a noisy behavior with strong phase mixing. Coherent phase variables should exist only for a frequency band with periodicities around the dominating 11-year cycle for SNs and SAs. There are some small phase differences between them. SNs lag SAs during most of the considered time interval, and they are in general more asynchronous around the minimum and maximum times of a cycle than at the ascending and descending phases. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | RECURRENCE PLOTS ; SOLAR-CYCLE ; WAVELET ANALYSIS ; TIME-SERIES ; LONG-TERM ; COHERENCE ; LATITUDE ; CLIMATE ; LENGTH |
| 收录类别 | SCI |
| 原文出处 | http://link.springer.com/article/10.1007%2Fs11207-009-9328-7 |
| 语种 | 英语 |
| WOS记录号 | WOS:000264536800008 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6144]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming, 650011, China 2.Graduate School of CAS, Beijing, 100049, China 3.Jingdezhen Ceramic Institute, Jingdezhan, 333001, Jiangxi, China |
| 推荐引用方式 GB/T 7714 | Li KJ,Gao PX,Zhan, LS. Synchronization of Sunspot Numbers and Sunspot Areas[J]. SOLAR PHYSICS,2009,255(2):289-300. |
| APA | Li KJ,Gao PX,&Zhan, LS.(2009).Synchronization of Sunspot Numbers and Sunspot Areas.SOLAR PHYSICS,255(2),289-300. |
| MLA | Li KJ,et al."Synchronization of Sunspot Numbers and Sunspot Areas".SOLAR PHYSICS 255.2(2009):289-300. |
入库方式： OAI收割
来源：云南天文台
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