Effect of non-dipole field on VGP estimation
文献类型：期刊论文
| 作者 | Xu Wen-Yao; Du Ai-Min; Chen Geng-Xiong |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007-09-01 |
| 卷号 | 50期号:5页码:1298-1303 |
| 关键词 | main geomagnetic field dipole field non-dipole field paleomagnetism VGP RGP |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | The virtual geomagnetic pole (VGP) calculated under the assumption of a central dipole field is generally different from the real geomagnetic pole (RGP) since effect of the non-dipole field. In order to quantitatively examine effects of the non-dipole field on VGP determination, the VGP and RGP are calculated at 5 degrees x 5 degrees virtual sites by using the IGRF 1900 similar to 2000 models. The results show significant departures of VGP from RGP in some major magnetic anomaly regions. The latitude departures of VGP from the RGP are as large as 25 degrees in these anomaly regions, although they are acceptable in most sites on the earth's surface (less than 10), mainly confined in the regions with a weak intensity of the non-dipole field, such as Pacific Ocean. The longitude departures of VGP from RGP are much more remarkable, scattering in a wide range from - 180 degrees to 180 degrees in Eurasian continent. The angle distance between VGP and the RGP are generally within a range of 15 degrees, except the Antarctica, South Atlantic Ocean and Eurasia regions. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000249679300004 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/67232]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Xu Wen-Yao |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu Wen-Yao,Du Ai-Min,Chen Geng-Xiong. Effect of non-dipole field on VGP estimation[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2007,50(5):1298-1303. |
| APA | Xu Wen-Yao,Du Ai-Min,&Chen Geng-Xiong.(2007).Effect of non-dipole field on VGP estimation.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,50(5),1298-1303. |
| MLA | Xu Wen-Yao,et al."Effect of non-dipole field on VGP estimation".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 50.5(2007):1298-1303. |
入库方式： OAI收割
来源：地质与地球物理研究所
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