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题名:
Relative Phase Asynchrony and Long-range Correlation of Long-term Solar Magnetic Activity
作者: Deng LH(邓林华)1,2
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
会议录: Proceedings of SPIE- NINTH INTERNATIONAL CONFERENCE ON DIGITAL IMAGE PROCESSING (ICDIP 2017)
会议录出版者: SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地: 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
出版日期: 2017-07
卷号: 10420
期号: 1
DOI: 10.1117/12.2281943
学科分类: 天文学 ; 天文学::太阳与太阳系
产权排序: 第1完成单位
收录类别: EI ; CPCI
关键词: Statistical signal processing ; long-range correlation ; wavelet transform ; recurrence plot analysis
英文摘要: 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
相关网址: 查看原文
ISBN号: 978-1-5106-1305-8; 978-1-5106-1304-1
ISSN号: 0277-786X
文章类型: Proceedings Paper
研究领域[WOS]: Imaging Science & Photographic Technology
类目[WOS]: Imaging Science & Photographic Technology
关键词[WOS]: TIME-SERIES ; ROTATION ; FLARES ; ROTATION ; FLARES
WOS记录号: WOS:000412113300058
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ynao.ac.cn/handle/114a53/10171
Appears in Collections:抚仙湖太阳观测站_会议论文

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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

Recommended Citation:
Deng LH. Relative Phase Asynchrony and Long-range Correlation of Long-term Solar Magnetic Activity[C]. 见:9th International Conference on Digital Image Processing (ICDIP). Hong Kong, PEOPLES R CHINA. 2017-05-19.https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10420/1/Relative-phase-asynchrony-and-long-range-correlation-of-long-term/10.1117/12.2281943.full?SSO=1.
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文件名: Relative phase asynchrony and long-range correlation of long-term solar magnetic activity.pdf
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