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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
产权排序第2完成单位
收录类别EI
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
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.
项目资助者Hainan University; Ocean University of China; Shandong University
语种英语
学科领域太阳与太阳系
文章类型Conference article (CA)
出版者The International Society for Optical Engineering
ISBN号ISBN-13: 9781510622685
ISSN号0277-786X
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
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
GB/T 7714
An, Jianmei,Cai YF,Qi, Yi,et al. Ensemble empirical mode decomposition applied to long-term solar time series analysis[C]:The International Society for Optical Engineering,2018.
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