Periodicity of flare index revisited using the Hilbert-Huang transform method

	Periodicity of flare index revisited using the Hilbert-Huang transform method
	Gao PX(高朋鑫)1,2 ; Liang, HF3 ; Zhu WW(朱玮文)1,2
刊名	NEW ASTRONOMY
	2011-04
卷号	16 期号:3 页码:147-151
关键词	Methods: data analysis Sun: activity Sun: flares
ISSN号	1384-1076
通讯作者	Gao, PX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Using the Hilbert-Huang Transform (HHT) method, we investigate the periodicity in the monthly mean flare indices from 1966 to 2007 (corresponding to almost four complete solar cycles), calculated by T. Atac and A. Ozguc. The results show as following. (1) The periods of 9.37 +/- 2.53, 11.8 +/- 0.172 and 23.6 +/- 0.316 years are found to be statistically significant in the flare index. The most eminent period is 9.37 +/- 2.53 years. (2) Other periods of 0.237 +/- 0.196 years (86.6 +/- 71.6 days), 0.525 +/- 0.0508 years (191 +/- 18.5 days), 1.05 +/- 0.478 years (383 +/- 174 days) and 2.37 +/- 0.395 years are below the 99% confidence level line, suggesting they are due to stochastic random noise. (C) 2010 Elsevier B.V. All rights reserved.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	EMPIRICAL MODE DECOMPOSITION ; TERM PERIODICITIES ; WAVELET ANALYSIS ; SUNSPOT NUMBERS ; SOLAR ; IDENTIFICATION ; SOLAR-CYCLE-23 ; FREQUENCY ; SPECTRUM
收录类别	SCI
原文出处	http://www.sciencedirect.com/science/article/pii/S138410761000120X
语种	英语
WOS记录号	WOS:000285660400001
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6181]
专题	云南天文台_太阳物理研究组
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3.Department of Physics, Yunnan Normal University, Kunming 650093, China
推荐引用方式 GB/T 7714	Gao PX,Liang, HF,Zhu WW. Periodicity of flare index revisited using the Hilbert-Huang transform method[J]. NEW ASTRONOMY,2011,16(3):147-151.
APA	Gao PX,Liang, HF,&Zhu WW.(2011).Periodicity of flare index revisited using the Hilbert-Huang transform method.NEW ASTRONOMY,16(3),147-151.
MLA	Gao PX,et al."Periodicity of flare index revisited using the Hilbert-Huang transform method".NEW ASTRONOMY 16.3(2011):147-151.