Multi-scale spectral analysis of solar magnetic activity over the past 70 years

	Multi-scale spectral analysis of solar magnetic activity over the past 70 years
	Deng LH(邓林华)
	2017-01
会议名称	2016 3rd International Conference on Systems and Informatics, ICSAI 2016
会议日期	2016-11-19
会议地点	Shanghai, PEOPLES R CHINA
关键词	information processing time series analysis autocorrelation analysis cross-correlation analysis empirical mode decomposition
页码	826-830
通讯作者	Deng, Linhua, Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China.
英文摘要	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.
收录类别	EI ; CPCI
产权排序	第1完成单位
会议网址	http://ieeexplore.ieee.org/document/7811065/
会议录	International Conference on Systems and Informatics - 2016 3RD INTERNATIONAL CONFERENCE ON SYSTEMS AND INFORMATICS (ICSAI)
会议录出版者	Institute of Electrical and Electronics Engineers(IEEE) Inc.
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
学科主题	天文学
语种	英语
ISSN号	2474-0217
ISBN号	978-1-5090-5521-0; 978-1-5090-5522-7
研究领域[WOS]	Engineering
WOS标题词	WOS:000400697600147
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/9961]
专题	云南天文台_抚仙湖太阳观测站
作者单位	Yunnan Observatories, Chinese Academy of Sciences, Kunming; 650216, China
推荐引用方式 GB/T 7714	Deng LH. Multi-scale spectral analysis of solar magnetic activity over the past 70 years[C]. 见:2016 3rd International Conference on Systems and Informatics, ICSAI 2016. Shanghai, PEOPLES R CHINA. 2016-11-19.http://ieeexplore.ieee.org/document/7811065/.