Multi-decadal to centennial secular variation of the main geomagnetic field
文献类型：期刊论文
| 作者 | Bai Chun-Hua1,2; Xu Wen-Yao1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 53期号:4页码:904-911 |
| 关键词 | Main geomagnetic field Secular variation Wavelet analysis Periodicity |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2010.04.015 |
| 文献子类 | Article |
| 英文摘要 | In this paper, the technique of wavelet transform is applied to analyze the gufml models during 1590 similar to 1990 A. D., for detecting the periodicities in the secular variations of the main geomagnetic field. Our analysis suggests that there are three principal periodic components in the total Pole-strength of (B) over dot field: a stable 30-year periodic component which is mainly seen in the equatorial component (g) over dot broken vertical bar of the dipole field, and it is also generally seen in the non-dipole field; second, a dispersive quasi 50-year periodic component, typically contributed by the axial component of the dipole field (g) over dot(1)(0), and the quadrupole also has a definite contribution; the last one is an intensity varying 110-year periodic component on centennial time scale, which seems to be from the equatorial component of the dipole field, and the octupole field also has a contribution. |
| WOS关键词 | WAVELET ANALYSIS ; MAGNETIC-FIELD ; 60-YEAR VARIATION ; CORE ; JERK ; ROTATION ; PERIOD ; EARTH |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000277220400015 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72536]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Bai Chun-Hua |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai Chun-Hua,Xu Wen-Yao. Multi-decadal to centennial secular variation of the main geomagnetic field[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2010,53(4):904-911. |
| APA | Bai Chun-Hua,&Xu Wen-Yao.(2010).Multi-decadal to centennial secular variation of the main geomagnetic field.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,53(4),904-911. |
| MLA | Bai Chun-Hua,et al."Multi-decadal to centennial secular variation of the main geomagnetic field".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 53.4(2010):904-911. |
入库方式： OAI收割
来源：地质与地球物理研究所
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