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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.
Source PublicationSOLAR PHYSICS
2005-06
Volume229Issue:1Pages:181-198
DOI10.1007/s11207-005-5001-y
Contribution Rank第1完成单位
Indexed BySCI
AbstractThree 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.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0038-0938
URL查看原文
Archive Date2005-11-23
WOS IDWOS:000233246500015
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSOLAR-ACTIVITY RECONSTRUCTION ; WAVELET ANALYSIS ; MAUNDER MINIMUM
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6075
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), CAS, Natl Astron Observ, Yunnan Observ, Kunming, Yunnan, Peoples R China.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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