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Phase relations between total solar irradiance and the Mg II index
Li KJ(李可军)1,2; Xu JC(徐景晨)1,3; Xiang NB(向南彬)1,3; Feng, W.4,5
Source PublicationADVANCES IN SPACE RESEARCH
2016
Volume57Issue:1Pages:408-417
DOI10.1016/j.asr.2015.10.020
Contribution Rank第1完成单位
Indexed BySCI ; EI
KeywordSun: General Sun: Activity Sun: Chromosphere
Abstract

The Mg II index is usually used to represent the brightening contribution to total solar irradiance (TSI) by solar bright structures, such as faculae and network. In order to understand variations of TSI, phase relations of TSI and the chromospheric Mg II index is investigated on time-scales of one year and longer. The NOAA daily Mg II index at the time interval of November 17, 1978 October 24, 2007 is utilized to carry out correlation analyses respectively with the daily ACRIM and PMOD composites of TSI. The Mg II index is found to lead TSI by about one solar rotation period for time-scales of one year and longer. Correlation of TSI with the Mg II index on the time-scale of one year is sometimes significantly positive, sometimes statistically insignificant, and sometimes even significantly negative. When sunspot darkening is dominant, the correlation between TSI and Mg II is either negative or not significant. When TSI is backward shifted vs the Mg II index by about one rotation period, correlation between them becomes significantly positive in all years. Thus, it is after about one rotation period that a more prominent intensification is inferred to be contributed to TSI than that immediately, by bright constructions, which is represented by the Mg II index. We propose an explanation for the phase relationship of TSI and the Mg II index. (C) 2015 COSPAR. Published by Elsevier Ltd. All rights reserved.

Funding Project973 program[2012CB957801] ; National Natural Science Foundation of China[11573065] ; National Natural Science Foundation of China[11273057] ; National Natural Science Foundation of China[11221063] ; Chinese Academy of Sciences
Funding Organization973 program[2012CB957801] ; National Natural Science Foundation of China[11573065, 11273057, 11221063] ; Chinese Academy of Sciences
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳与太阳系其他学科
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherELSEVIER SCI LTD
Publication PlaceTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
ISSN0273-1177
URL查看原文
Archive Date2016-12-12
WOS IDWOS:000368564300033
WOS Research AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectAstronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS KeywordMAGNETIC-FLUX ; CYCLES 21-23 ; VARIABILITY ; RECONSTRUCTION ; FLUCTUATIONS ; MODEL ; PROXY
EI Accession Number20155201732188
EI KeywordsMagnesium compounds
EI Classification Number57.1Solar Energy and Phenomena - 804.1Organic Compounds - 943.3Special Purpose Instruments
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9326
Collection太阳物理研究组
Corresponding AuthorFeng, W.
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
4.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
5.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) Ministry of Education, Nanjing 210093, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Xu JC,Xiang NB,et al. Phase relations between total solar irradiance and the Mg II index[J]. ADVANCES IN SPACE RESEARCH,2016,57(1):408-417.
APA Li KJ,Xu JC,Xiang NB,&Feng, W..(2016).Phase relations between total solar irradiance and the Mg II index.ADVANCES IN SPACE RESEARCH,57(1),408-417.
MLA Li KJ,et al."Phase relations between total solar irradiance and the Mg II index".ADVANCES IN SPACE RESEARCH 57.1(2016):408-417.
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