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Relative Phase Asynchrony and Long-range Correlation of Long-term Solar Magnetic Activity
Deng LH(邓林华)1,2
会议录名称Proceedings of SPIE - NINTH INTERNATIONAL CONFERENCE ON DIGITAL IMAGE PROCESSING (ICDIP 2017)
2017-07
卷号10420
期号1
DOI10.1117/12.2281943
产权排序第1完成单位
收录类别EI ; CPCI
会议名称9th International Conference on Digital Image Processing (ICDIP)
会议日期2017-05-19
会议地点Hong Kong, PEOPLES R CHINA
关键词Statistical Signal Processing Long-range Correlation Wavelet Transform Recurrence Plot Analysis
摘要Statistical signal processing is one of the most important tasks in a large amount of areas of scientific studies, such as astrophysics, geophysics, and space physics. Phase recurrence analysis and long-range persistence are the two dynamical structures of the underlying processes for the given natural phenomenon. Linear and nonlinear time series analysis approaches (cross-correlation analysis, cross-recurrence plot, wavelet coherent transform, and Hurst analysis) are combined to investigate the relative phase interconnection and long-range correlation between solar activity and geomagnetic activity for the time interval from 1932 January to 2017 January. The following prominent results are found: (1) geomagnetic activity lags behind sunspot numbers with a phase shift of 21 months, and they have a high level of asynchronous behavior; (2) their relative phase interconnections are in phase for the periodic scales during 8-16 years, but have a mixing behavior for the periodic belts below 8 years; (3) both sunspot numbers and geomagnetic activity can not be regarded as a stochastic phenomenon because their dynamical behaviors display a long-term correlation and a fractal nature. We believe that the presented conclusions could provide further information on understanding the dynamical coupling of solar dynamo process with geomagnetic activity variation, and the crucial role of solar and geomagnetic activity in the long-term climate change.
项目资助者CAS "Light of West China" Program ; 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)
语种英语
学科领域天文学 ; 太阳与太阳系
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978-1-5106-1305-8; 978-1-5106-1304-1
ISSN号0277-786X
URL查看原文
归档日期2017-10-23
WOS记录号WOS:000412113300058
WOS研究方向Imaging Science & Photographic Technology
WOS类目Imaging Science & Photographic Technology
关键词[WOS]TIME-SERIES ; ROTATION ; FLARES ; ROTATION ; FLARES
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/10171
专题抚仙湖太阳观测站
作者单位1.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
2.Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China
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Deng LH. Relative Phase Asynchrony and Long-range Correlation of Long-term Solar Magnetic Activity[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2017.
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