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Relationship between group sunspot numbers and Wolf sunspot numbers
Li, K. J.1,2; Liang, H. F.3
2010-08-01
发表期刊ASTRONOMISCHE NACHRICHTEN
卷号331期号:7页码:709-715
摘要Continuous 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
关键词Methods: Data Analysis Sun: Activity Sunspots
DOI10.1002/asna.200911401
收录类别SCI
语种英语
WOS记录号WOS:000280673900006
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7707
专题星系宇宙学研究部
作者单位1.CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China
2.CAS, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
3.Yunnan Normal Univ, Dept Phys, Kunming 650093, Peoples R China
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Li, K. J.,Liang, H. F.. Relationship between group sunspot numbers and Wolf sunspot numbers[J]. ASTRONOMISCHE NACHRICHTEN,2010,331(7):709-715.
APA Li, K. J.,&Liang, H. F..(2010).Relationship between group sunspot numbers and Wolf sunspot numbers.ASTRONOMISCHE NACHRICHTEN,331(7),709-715.
MLA Li, K. J.,et al."Relationship between group sunspot numbers and Wolf sunspot numbers".ASTRONOMISCHE NACHRICHTEN 331.7(2010):709-715.
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