The Schwabe and Gleissberg periods in the Wolf sunspot numbers and the group sunspot numbers | |
Li KJ(李可军)1,2; Gao PX(高朋鑫)1,3; Su TW(苏同卫)1,3; Li, KJ (reprint author), CAS, Natl Astron Observ, Yunnan Observ, Kunming, Yunnan, Peoples R China. | |
发表期刊 | SOLAR PHYSICS |
2005-06 | |
卷号 | 229期号:1页码:181-198 |
DOI | 10.1007/s11207-005-5001-y |
产权排序 | 第1完成单位 |
收录类别 | SCI |
摘要 | Three wavelet functions: the Morlet wavelet, the Paul wavelet, and the DOG wavelet have been respectively performed on both the monthly Wolf sunspot numbers (R-z) from January 1749 to May 2004 and the monthly group sunspot numbers (R-g) from June 1795 to December 1995 to study the evolution of the Gleissberg and Schwabe periods of solar activity. The main results obtained are (1) the two most obvious periods in both the R-z and R-g are the Schwabe and Gleissberg periods. The Schwabe period oscillated during the second half of the eighteenth century and was steady from the 1850s onward. No obvious drifting trend of the Schwabe period exists. (2) The Gleissberg period obviously drifts to longer periods the whole consideration time, and the drifting speed of the Gleissberg period is larger for R-z than for R-g. (3) Although the Schwabe-period values for R-z and R-g are about 10.7 years, the value for R-z seems slightly larger than that for R-g. The Schwabe period of R-z is highly significant after the 1820s, and the Schwabe period of R-g is highly significant over almost the whole consideration time except for about 20 years around the 1800s. The evolution of the Schwabe period for both R-z and R-g in time is similar to each other. (4) The Gleissberg period in R-z and R-g is highly significant during the whole consideration time, but this result is unreliable at the two ends of each of the time series of the data. The evolution of the Gleissberg period in R-z is similar to that in R-g. |
语种 | 英语 |
学科领域 | Astronomy & Astrophysics |
文章类型 | Article |
ISSN | 0038-0938 |
URL | 查看原文 |
归档日期 | 2005-11-23 |
WOS记录号 | WOS:000233246500015 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | SOLAR-ACTIVITY RECONSTRUCTION ; WAVELET ANALYSIS ; MAUNDER MINIMUM |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/6075 |
专题 | 太阳物理研究组 |
通讯作者 | Li, KJ (reprint author), CAS, Natl Astron Observ, Yunnan Observ, Kunming, Yunnan, Peoples R China. |
作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, CAS, Yunnan, People's Republic of China 2.Big Bear Solar Observatory, New Jersey Institute of Technology, Big Bear City, CA, 92314, U.S.A. 3.The Graduate School, CAS, Beijing, People's Republic of China |
第一作者单位 | 中国科学院云南天文台 |
推荐引用方式 GB/T 7714 | Li KJ,Gao PX,Su TW,et al. The Schwabe and Gleissberg periods in the Wolf sunspot numbers and the group sunspot numbers[J]. SOLAR PHYSICS,2005,229(1):181-198. |
APA | Li KJ,Gao PX,Su TW,&Li, KJ .(2005).The Schwabe and Gleissberg periods in the Wolf sunspot numbers and the group sunspot numbers.SOLAR PHYSICS,229(1),181-198. |
MLA | Li KJ,et al."The Schwabe and Gleissberg periods in the Wolf sunspot numbers and the group sunspot numbers".SOLAR PHYSICS 229.1(2005):181-198. |
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