Long-term variations of solar activity
文献类型：期刊论文
| 作者 | Yin ZhiQiang ; Ma LiHua; Han YanBen; Han YongGang
|
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2007-10-01 |
| 卷号 | 52期号:20页码:2737-2741 |
| 关键词 | solar activity sunspot Lomb-Scargle spectrum analysis wavelet transform |
| 英文摘要 | Using the Lomb-Scargle periodogram we analyzed two sunspot series: the one over the past 11000 years at the 10-year interval based upon the survey data of (14)C concentration in tree-rings, reconstructed by Solanki et al.; and the sunspot number over the past 7000 years, derived from geomagnetic variations by Usoskin et al. We found the periods and quasi-periods in solar activity, such as about 225, 352, 441, 522 and 561 a, and near 1000 and 2000 a. An approach of wavelet transform was applied to check the two sunspot time series, with emphasis on investigating time-varying characteristics in the long-term fluctuations of solar activity. The results show that the lengths and amplitudes of the periods have changed with time, and large variations have taken place during some periods. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249986200001 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7294]  |
| 专题 | 国家天文台_应用天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin ZhiQiang,Ma LiHua,Han YanBen,et al. Long-term variations of solar activity[J]. CHINESE SCIENCE BULLETIN,2007,52(20):2737-2741. |
| APA | Yin ZhiQiang,Ma LiHua,Han YanBen,&Han YongGang.(2007).Long-term variations of solar activity.CHINESE SCIENCE BULLETIN,52(20),2737-2741. |
| MLA | Yin ZhiQiang,et al."Long-term variations of solar activity".CHINESE SCIENCE BULLETIN 52.20(2007):2737-2741. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。