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Periodicity of Total Solar Irradiance
Li, K. J.1,2; Xu, J. C.1,3; Liu, X. H.4; Gao, P. X.1,3; Zhan, L. S.5
Source PublicationSOLAR PHYSICS
AbstractWe investigate the periodicity in the PMOD composite of the daily total solar irradiance (TSI) from 21 September 1978 to 9 June 2009. Besides the Schwabe cycle period (10.32 years), the quasi-rotation period is found to be statistically significant in TSI, whose value is about 32 days, longer than that in sunspot activity (27 days), and it intermittently appears around the sunspot maximum times. The quasi-rotation period in TSI is inferred to be mainly caused by sunspot activity, but to be modulated by bright features as well. It was previously found that variations of TSI over a Schwabe solar cycle mainly come from the combination of the sunspots' blocking and the intensification due to bright faculae, plages, and network elements, with a slight dominance of the bright-feature effect during the maximum of the Schwabe cycle. For the sunspot-blocking and the bright-feature effect to contribute to TSI over a Schwabe solar cycle, the former is inferred to lead the latter by 29 days at least.
KeywordSolar Irradiance Solar Cycle Observations
Indexed BySCI
WOS IDWOS:000284771300006
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China
2.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
3.CAS, Grad Sch, Beijing 100863, Peoples R China
4.Jiaozuo Adv Normal Coll, Dept Phys, Jiaozuo 454107, Peoples R China
5.Jingdezhen Ceram Inst, Jingdezhen 333001, Jiangxi, Peoples R China
Recommended Citation
GB/T 7714
Li, K. J.,Xu, J. C.,Liu, X. H.,et al. Periodicity of Total Solar Irradiance[J]. SOLAR PHYSICS,2010,267(2):295-303.
APA Li, K. J.,Xu, J. C.,Liu, X. H.,Gao, P. X.,&Zhan, L. S..(2010).Periodicity of Total Solar Irradiance.SOLAR PHYSICS,267(2),295-303.
MLA Li, K. J.,et al."Periodicity of Total Solar Irradiance".SOLAR PHYSICS 267.2(2010):295-303.
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