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Relationship between group sunspot numbers and Wolf sunspot numbers
Li KJ(李可军)1,2; Liang, HF3; Li, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationASTRONOMISCHE NACHRICHTEN
2010-08
Volume331Issue:7Pages:709-715
DOI10.1002/asna.200911401
Contribution Rank第1完成单位
Indexed BySCI
KeywordMethods: Data Analysis Sun: Activity Sunspots
AbstractContinuous wavelet transform and cross-wavelet transform have been used to investigate the phase periodicity and synchrony of the monthly mean Wolf (R(z)) and group (R(g)) sunspot numbers during the period of June 1795 to December 1995. The Schwabe cycle is the only one common period in R(g) and R(z), but it is not well-defined in case of cycles 5-7 of R(g) and in case of cycles 5 and 6 of R(z). In fact, the Schwabe period is slightly different in R(g) and R(z) before cycle 12, but from cycle 12 onwards it is almost the same for the two time series. Asynchrony of the two time series is more obviously seen in cycles 5 and 6 than in the following cycles, and usually more obviously seen around the maximum time of a cycle than during the rest of the cycle. R(g) is found to fit R(z) better in both amplitudes and peak epoch during the minimum time time of a solar cycle than during the maximum time of the cycle, which should be caused by their different definition, and around the maximum time of a cycle, R(g) is usually less than R(z). Asynchrony of R(g) and R(z), should somewhat agree with different sunspot cycle characteristics exhibited by themselves. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Funding OrganizationNSFC [10873032, 40636031, 10921303] ; National Key Research Science Foundation [2006CB806303] ; Chinese Academy of Sciences
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6337
URL查看原文
Archive Date2010-07-13
WOS IDWOS:000280673900006
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSOLAR-ACTIVITY RECONSTRUCTION ; MAUNDER MINIMUM ; SPECTRAL CHARACTERISTICS ; WAVELET ANALYSIS
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6165
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
3.Department of Physics, Yunnan Normal University, Kunming 650093, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Liang, HF,Li, KJ . Relationship between group sunspot numbers and Wolf sunspot numbers[J]. ASTRONOMISCHE NACHRICHTEN,2010,331(7):709-715.
APA Li KJ,Liang, HF,&Li, KJ .(2010).Relationship between group sunspot numbers and Wolf sunspot numbers.ASTRONOMISCHE NACHRICHTEN,331(7),709-715.
MLA Li KJ,et al."Relationship between group sunspot numbers and Wolf sunspot numbers".ASTRONOMISCHE NACHRICHTEN 331.7(2010):709-715.
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