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Modulations of the surface magnetic field on the intra-cycle variability of total solar irradiance
Xu JC(徐景晨)1,2,3; Kong DF(孔德芳)1; Li FY(李富羽)1,4; Xu JC(徐景晨), Email: jcxu@ynao.ac.cn
发表期刊ASTROPHYSICS AND SPACE SCIENCE
2018-05-01
卷号363期号:5
DOI10.1007/s10509-018-3325-y
产权排序第1完成单位
收录类别SCI
关键词Sun: General Sun: Activity Sun: Magnetic Fields
摘要Solar photospheric magnetic field plays a dominant role in the variability of total solar irradiance (TSI). The modulation of magnetic flux at six specific ranges on TSI is characterized for the first time. The daily flux values of magnetic field at four ranges are extracted from MDI/SOHO, together with daily flux of active regions (MFar) and quiet regions (MFqr); the first four ranges (MF1-4) are: 1.5-2.9, 2.9-32.0, 32.0-42.7, and 42.7-380.1 (x10(18) Mx per element), respectively. Cross-correlograms show that MF4, MFqr, and MFar are positively correlated with TSI, while MF2 is negatively correlated with TSI; the correlations between MF1, MF3 and TSI are insignificant. The bootstrapping tests confirm that the impact of MF4 on TSI is more significant than that of MFar and MFqr, and MFar leads TSI by one rotational period. By extracting the rotational variations in the MFs and TSI, the modulations of the former on the latter at the solar rotational timescale are clearly illustrated and compared during solar maximum and minimum times, respectively. Comparison of the relative amplitudes of the long-term variation show that TSI is in good agreement with the variation of MF4 and MFar; besides, MF2 is in antiphase with TSI, and it lags the latter by about 1.5 years.
项目资助者National Natural Science Foundation of China(11573065, 11633008, 11273057, 11603071) ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences
语种英语
学科领域天文学
文章类型Article
ISSN0004-640X
URL查看原文
WOS记录号WOS:000431355300021
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]EMPIRICAL MODE DECOMPOSITION ; SPECTRAL IRRADIANCE ; RADIATIVE OUTPUT ; RECONSTRUCTION ; TREND ; UNCERTAINTIES ; LUMINOSITY ; SUNSPOTS ; CLIMATE ; SUN
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12357
专题抚仙湖太阳观测站
通讯作者Xu JC(徐景晨), Email: jcxu@ynao.ac.cn
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
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Xu JC,Kong DF,Li FY,et al. Modulations of the surface magnetic field on the intra-cycle variability of total solar irradiance[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(5).
APA Xu JC,Kong DF,Li FY,&Xu JC.(2018).Modulations of the surface magnetic field on the intra-cycle variability of total solar irradiance.ASTROPHYSICS AND SPACE SCIENCE,363(5).
MLA Xu JC,et al."Modulations of the surface magnetic field on the intra-cycle variability of total solar irradiance".ASTROPHYSICS AND SPACE SCIENCE 363.5(2018).
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