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Multi-scale spectral analysis of solar magnetic activity over the past 70 years
Deng LH(邓林华)
Source PublicationInternational Conference on Systems and Informatics - 2016 3RD INTERNATIONAL CONFERENCE ON SYSTEMS AND INFORMATICS (ICSAI)
2017-01
Pages826-830
DOI10.1109/ICSAI.2016.7811065
Author of SourceFei, X; Wang, L; Ji, C; Sun, Q; Chen, N; Song, X; Wang, X
Contribution Rank第1完成单位
Indexed ByEI ; CPCI
Conference Name2016 3rd International Conference on Systems and Informatics, ICSAI 2016
Conference Date2016-11-19
Conference PlaceShanghai, PEOPLES R CHINA
Conference SponsorShanghai Dianji Univ, Sch Elect & Informat; Shanghai Dianji Univ; IEEE Syst Man & Cybernet Soc; IEEE Ind Elect Soc; DI
KeywordInformation Processing Time Series Analysis Autocorrelation Analysis Cross-correlation Analysis Empirical Mode Decomposition
Abstract

The complex spatial and temporal behaviors of long-Term solar magnetic activity are an important aspect in solar data set analysis, however it is not an easy work in practice owing to its complex features of solar dynamo process. This paper can improve our knowledges on periodic variations of F10.7 radio flux and sunspot areas by determining the phase relationship between periodic identification and time series decomposition. Several quantitative analysis approaches, including auto-correlation analysis, cross-correlation analysis, and empirical mode decomposition, are combined to study their periodic behavior, phase relationship, and multi-scale modes. The analysis results indicate that the above analysis approaches can be used to decompose a data set into several meaningful components. To sum up, these techniques can be improved to study the periodic features of solar magnetic activity, moreover, it can also identify the natural modes or components, i.e., high-frequency mode, mid-frequency mode, and low-frequency mode. 

Funding ProjectFound of Sichuan University of Science and Engineering grant[2015RC43] ; Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; Yunnan Science Foundation of China[2015FB192] ; National Natural Science Foundation of China (NSFC)[11503082]
Funding OrganizationFound of Sichuan University of Science and Engineering grant ; Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; Yunnan Science Foundation of China ; National Natural Science Foundation of China (NSFC)
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherIEEE
Publication Place345 E 47TH ST, NEW YORK, NY 10017 USA
ISBN978-1-5090-5521-0
ISSN2474-0217
URL查看原文
Archive Date2017-10-23
WOS IDWOS:000400697600147
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS KeywordFlare Index ; Periodicities ; Corona ; Field ; Flux ; Term
EI Accession Number20171203462520
EI KeywordsTime Series Analysis
EI Classification Number701.2magnetism: Basic Concepts And Phenomena - 723.2data Processing And Image Processing - 922.2mathematical Statistics
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9961
Collection抚仙湖太阳观测站
Corresponding AuthorDeng LH(邓林华)
AffiliationYunnan Observatories, Chinese Academy of Sciences, Kunming; 650216, China
Recommended Citation
GB/T 7714
Deng LH. Multi-scale spectral analysis of solar magnetic activity over the past 70 years[C]//Fei, X; Wang, L; Ji, C; Sun, Q; Chen, N; Song, X; Wang, X. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2017:826-830.
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