Low dimensional chaos from the group sunspot numbers

doi:10.1088/1009-9271/7/3/14

YNAO OpenIR > 太阳物理研究组

	Low dimensional chaos from the group sunspot numbers
	Li QX(李启秀)1,2 ; Li KJ(李可军)1 ; Li, QX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2007
卷号	7 期号:3 页码:435-440
DOI	10.1088/1009-9271/7/3/14
产权排序	第1完成单位
收录类别	SCI
关键词	Sun : Activity Sun : Sunspot Chaos Sun : Wolf Sunspot Numbers
摘要	We examine the nonlinear dynamical properties of the monthly smoothed group sunspot number R-g and find that the solar activity underlying the time series of R-g, is globally governed by a low-dimensional chaotic attractor. This finding is consistent with the nonlinear; study results of the monthly Wolf sunspot numbers. We estimate the maximal Lyaponuv exponent (MLE) for the R-g series to be positive and to equal approximately 0.0187 +/- 0.0023 (month(-1)). Thus, the Lyaponuv time or predictability time of the chaotic motion is obtained to be about 4.46 +/- 0.5 years, which is slightly different with the predictability time obtained from R-z. However, they both indicate that solar activity forecast should be,done only for,a short to medium term due to the intrinsic complexity of the time behavior concerned.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1009-9271
URL	查看原文
归档日期	2007-06-22
WOS记录号	WOS:000247553300014
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	SOLAR-ACTIVITY RECONSTRUCTION ; TIME-SERIES ; LYAPUNOV EXPONENTS ; CYCLE
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/6112
专题	太阳物理研究组
通讯作者	Li, QX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 2.Graduate School of Chinese Academy of Sciences, Beijing 100049
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Li QX,Li KJ,Li, QX . Low dimensional chaos from the group sunspot numbers[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(3):435-440.
APA	Li QX,Li KJ,&Li, QX .(2007).Low dimensional chaos from the group sunspot numbers.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(3),435-440.
MLA	Li QX,et al."Low dimensional chaos from the group sunspot numbers".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.3(2007):435-440.

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