Global changes of the non-dipole magnetic fields for 1900-2000
文献类型：期刊论文
| 作者 | An, ZC; Wang, YH |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 1999-03-01 |
| 卷号 | 42期号:2页码:169-177 |
| 关键词 | dipole magnetic field non-dipole magnetic field International Geomagnetic Reference Field global change |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | Based on the seventh generation of International Geomagnetic Referance Held, the nondipole magnetic fields for 1900-2000 (interval is 5 years.) were calculated and drawn, the locations and intensities of each magnetic anomaly centre at different epoch were computed and analysed, too. The distribution rangs are very large, and the intensities are very strong for the following five magnetic anomalies: Eastern Asian positive anomaly, Oceanian negative anomaly, Southern Atlantic positive anomaly, African negative anomaly and Northern American positive anomaly. The intensity of Southern Atlantic positive anomaly is the biggest. The intensity of Eastern Asian positive anomaly is the second before 1990. The intensity of African negative anomaly exceeds the Eastern Asian anomaly and becomes the second since 1990. The increasing rate of magnetic anomaly intensity (absolute value) of African negative anomaly is the largest (average annual variation rate is 67.1 nT / a), that of Southern Atlantic positive anomaly is the second (that is 64.8 nT / a), that of Oceanian negative anomaly is the third (that is 49.6 nT / a). The location changes of magnetic anomaly centre of African and Southern Atlantic anomaly are the fastest in the all of the magnetic anomalies. |
| WOS关键词 | GEOMAGNETIC REFERENCE FIELD |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000083223500004 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75710]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | An, ZC |
| 作者单位 | Chinese Acad Sci, Inst Geophys, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | An, ZC,Wang, YH. Global changes of the non-dipole magnetic fields for 1900-2000[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,1999,42(2):169-177. |
| APA | An, ZC,&Wang, YH.(1999).Global changes of the non-dipole magnetic fields for 1900-2000.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,42(2),169-177. |
| MLA | An, ZC,et al."Global changes of the non-dipole magnetic fields for 1900-2000".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 42.2(1999):169-177. |
入库方式： OAI收割
来源：地质与地球物理研究所
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