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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; Feng, W (reprint author), Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Peoples R China
发表期刊ADVANCES IN SPACE RESEARCH
2016
卷号57期号:1页码:408-417
DOI10.1016/j.asr.2015.10.020
产权排序第1完成单位
收录类别SCI ; EI
关键词Sun: General Sun: Activity Sun: Chromosphere
摘要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.
项目资助者973 program (2012CB957801) ; National Natural Science Foundation of China (11573065, 11273057, 11221063) ; Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
文章类型Article
ISSN0273-1177
URL查看原文
归档日期2016-12-12
WOS记录号WOS:000368564300033
WOS研究方向Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS类目Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
关键词[WOS]MAGNETIC-FLUX ; CYCLES 21-23 ; VARIABILITY ; RECONSTRUCTION ; FLUCTUATIONS ; MODEL ; PROXY
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9326
专题太阳物理研究组
通讯作者Feng, W (reprint author), Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Peoples R China
作者单位1.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
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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.,&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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