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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
Source PublicationProceedings of SPIE - Third International Workshop on Pattern Recognition
2018
Volume10828
DOI10.1117/12.2502101
Author of SourceJiang, X; Chen, Z; Chen, G
Contribution Rank第2完成单位
Indexed ByEI ; CPCI
Conference Name3rd International Workshop on Pattern Recognition, IWPR 2018
Conference Date2018-05-26
Conference PlaceJinan, China
Conference SponsorUniv Jinan; Hainan Univ; Shandong Univ; Ocean Univ China
KeywordTime-frequency Analysis Empirical Mode Decomposition Statistical Analysis Technique Solar Activity
Abstract

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.

Funding ProjectN/A
Funding OrganizationN/A
Language英语
Subject Area太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Publication Place1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN978-1-5106-2269-2
ISSN0277-786X
URL查看原文
WOS IDWOS:000453607800044
WOS Research AreaOptics ; Imaging Science & Photographic Technology
WOS SubjectOptics ; Imaging Science & Photographic Technology
WOS KeywordWavelet Transform ; Phase Asynchrony ; Polar Faculae ; Periodicities ; Index
EI Accession Number20183505762783
EI KeywordsTime Series Analysis
EI Classification Number657.1solar Energy And Phenomena ; 922.2mathematical Statistics
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/17394
Collection抚仙湖太阳观测站
Corresponding AuthorQi, Yi
Affiliation1.School of Software Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China
Recommended Citation
GB/T 7714
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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