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Ensemble empirical mode decomposition applied to long-term solar time series analysis
An, Jianmei1; Cai YF(蔡云芳)2; Qi, Yi1; Wang, Xianping1; Zuo, Yongyan1
会议录名称Proceedings of SPIE - Third International Workshop on Pattern Recognition
2018
卷号10828
DOI10.1117/12.2502101
会议录编者/会议主办者Jiang, X; Chen, Z; Chen, G
产权排序第2完成单位
收录类别EI ; CPCI
会议名称3rd International Workshop on Pattern Recognition, IWPR 2018
会议日期2018-05-26
会议地点Jinan, China
会议赞助商Univ Jinan; Hainan Univ; Shandong Univ; Ocean Univ China
关键词Time-frequency Analysis Empirical Mode Decomposition Statistical Analysis Technique Solar Activity
摘要

olar time series manifests nonlinear and non-stationary behaviors, and perhaps multi-modal dynamical processes operating in solar magnetic indicators. In the present work, the novel ensemble empirical mode decomposition (EEMD) is applied to study the monthly distribution of sunspot areas produced by the extended time series of solar activity indices (ESAI) database in the time interval from 1821 January to 1989 December. It is established that the quasi-periodic variations of monthly sunspot areas consist of at least three well-defined dynamical components: one is the short-term variations which are obviously smaller than one year, the second one is the mid-term variations with periodic scales varying from 1 year to 15 years, and the last component is the periodic variation with periodicities larger than 15 years. The analysis results indicate the EEMD technique is an advanced tool for analyzing the weakly nonlinear and non-stationary dynamical behaviors of solar magnetic activity cycle.

资助项目N/A
项目资助者N/A
语种英语
学科领域太阳与太阳系
学科门类理学 ; 理学::天文学
文章类型Proceedings Paper
出版者SPIE-INT SOC OPTICAL ENGINEERING
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号978-1-5106-2269-2
ISSN号0277-786X
URL查看原文
WOS记录号WOS:000453607800044
WOS研究方向Optics ; Imaging Science & Photographic Technology
WOS类目Optics ; Imaging Science & Photographic Technology
关键词[WOS]Wavelet Transform ; Phase Asynchrony ; Polar Faculae ; Periodicities ; Index
EI入藏号20183505762783
EI主题词Time Series Analysis
EI分类号657.1solar Energy And Phenomena ; 922.2mathematical Statistics
引用统计
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/17394
专题抚仙湖太阳观测站
通讯作者Qi, Yi
作者单位1.School of Software Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China
推荐引用方式
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An, Jianmei,Cai YF,Qi, Yi,et al. Ensemble empirical mode decomposition applied to long-term solar time series analysis[C]//Jiang, X; Chen, Z; Chen, G. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2018.
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