Secular variations in geomagnetic dipole and non-dipole components: Constrains on the earth's interior process
文献类型：期刊论文
| 作者 | Liu, QS; Zhu, RX; Pan, YX; Guo, B |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 1999-03-01 |
| 卷号 | 42期号:2页码:178-184 |
| 关键词 | length of day core-mantle coupling geomagnetic periodical variations correlation function |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | The correlation function rho of different components of geomagnetic field shows that rho of dipole part keeps nearly unchanged from 1905-1970y, drops a little from 1970-1985y, then goes up from 1985-1995y. While the rho of non-dipole components, which has three wave crests (1915y, 1945y, and 1980y) and two troughs (1935y and 1965y), changes with period about 30y. Compared the variations in rho and the time rate of change of length of day ((Lambda) over dot) , we put forward: (1) the periodical change of geomagnetic non-dipole is relate to the core-mantle coupling, while the dipole component is controlled by the process of the deeper outer-core; (2) the fluid motion of upper outer-core changes periodically with the same period of rho. |
| WOS关键词 | CORE-MANTLE BOUNDARY ; MAGNETIC-FIELD ; DECADE FLUCTUATIONS ; ROTATION ; LENGTH ; FLOW |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000083223500005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75230]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu, QS |
| 作者单位 | Chinese Acad Sci, Inst Geophys, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, QS,Zhu, RX,Pan, YX,et al. Secular variations in geomagnetic dipole and non-dipole components: Constrains on the earth's interior process[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,1999,42(2):178-184. |
| APA | Liu, QS,Zhu, RX,Pan, YX,&Guo, B.(1999).Secular variations in geomagnetic dipole and non-dipole components: Constrains on the earth's interior process.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,42(2),178-184. |
| MLA | Liu, QS,et al."Secular variations in geomagnetic dipole and non-dipole components: Constrains on the earth's interior process".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 42.2(1999):178-184. |
入库方式： OAI收割
来源：地质与地球物理研究所
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