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Long-range Correlation and Wavelet Transform Analysis of Solar Magnetic Activity
Deng LH(邓林华)1,2
Source PublicationProceedings of SPIE - SECOND INTERNATIONAL WORKSHOP ON PATTERN RECOGNITION
2017
Volume10443
DOI10.1117/12.2280544
Author of SourceJiang, X; Arai, M; Chen, G
Contribution Rank第1完成单位
Indexed ByEI ; CPCI
Conference Name2nd International Workshop on Pattern Recognition, IWPR 2017
Conference Date2017-05-01
Conference PlaceSingapore, SINGAPORE
Conference SponsorACM Singapore Chapter; Hainan Univ; Chengdu Zonghang Exhibit & Serv Co Ltd
KeywordLong-range Correlation Wavelet Transform Analysis Solar Time Series Astronomical Signal Processing
Abstract

Statistical data processing has been one of the most important activities in many fields of scientific studies, and has become the only way through which one can deal with the underlying processes of the given phenomenon. The two classical techniques to solar time series analysis are related to the space domain and the spectral. In the present paper, the relative phase relationship of sunspot unit area on both hemispheres is investigated by the long-range correlation and the wavelet transform analysis. It is found that, (1) the north-south asynchrony of sunspot unit area can not be regarded as a stochastic phenomenon because its behavior exhibits a long-term tendency; (2) The leading hemisphere of sunspot unit area is the southern hemisphere before the year of 1962, and then the northern hemisphere till the year of 2008; (3) the sunspot unit area should be used to represent the long-term solar magnetic activity. Our analysis results could be instructive to put further research on the physical mechanisms of north-south asynchrony of magnetic activity on the Sun. Moreover, the long-range correlation analysis and the wavelet transform technique of solar time series provide crucial information to understand, describe, and predict long-term solar variability.

Funding ProjectCAS ; Youth Innovation Promotion Association CAS ; Yunnan Science Foundation of China[2015FB192] ; CAS Key Laboratory of Solar Activity[KLSA201709] ; National Natural Science Foundation of China (NSFC)[U1531140] ; Chinese Academy of Sciences (CAS)[U1531140]
Funding OrganizationCAS ; Youth Innovation Promotion Association CAS ; Yunnan Science Foundation of China ; CAS Key Laboratory of Solar Activity ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS)
Language英语
Subject Area天文学
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
ISBN978-1-5106-1350-8; 978-1-5106-1351-5
ISSN0277-786X
URL查看原文
Archive Date2017-10-23
WOS IDWOS:000406968700026
WOS Research AreaComputer Science ; Engineering ; Optics
WOS SubjectComputer Science, Artificial Intelligence ; Engineering, Electrical & Electronic ; Optics
WOS KeywordNorth-south Asymmetry ; Rotating Sunspots ; Time-series ; Coherence
EI Accession Number20173604116535
EI KeywordsWavelet Transforms
EI Classification Number701.2magnetism: Basic Concepts And Phenomena - 716.1information Theory And Signal Processing - 723.2data Processing And Image Processing - 921.3mathematical Transformations - 922.2mathematical Statistics - 961systems Science
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10150
Collection抚仙湖太阳观测站
Corresponding AuthorDeng LH(邓林华)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Deng LH. Long-range Correlation and Wavelet Transform Analysis of Solar Magnetic Activity[C]//Jiang, X; Arai, M; Chen, G. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2017.
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