Low dimensional chaos from the group sunspot numbers
文献类型：期刊论文
| 作者 | Li QX(李启秀)1,2 ; Li KJ(李可军)1
|
| 刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2007 |
| 卷号 | 7期号:3页码:435-440 |
| 关键词 | sun : activity sun : sunspot chaos sun : Wolf sunspot numbers |
| ISSN号 | 1009-9271 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Li, QX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SOLAR-ACTIVITY RECONSTRUCTION ; TIME-SERIES ; LYAPUNOV EXPONENTS ; CYCLE |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1009-9271/7/3/14/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000247553300014 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6112]  |
| 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 2.Graduate School of Chinese Academy of Sciences, Beijing 100049 |
| 推荐引用方式 GB/T 7714 | Li QX,Li KJ. 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.(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. |
入库方式： OAI收割
来源：云南天文台
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