The Legendre polynomials modeling method of small-scale geomagnetic fields
文献类型：期刊论文
| 作者 | Ou Jia-Ming1,3; Du Ai-Min1,2; Xu Wen-Yao1; Hong Ming-Hua1; Chen Geng-Xiong1; Luo Hao1; Zhao Xu-Dong1; Bai Chun-Hua1; Wang Yuan1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 55期号:8页码:2669-2675 |
| ISSN号 | 0001-5733 |
| 关键词 | Spatial resolution Geomagnetic field modeling Legendre polynomials Boundary effects Least square estimation |
| DOI | 10.6038/j.issn.0001-5733.2012.08.019 |
| 文献子类 | Article |
| 英文摘要 | Based on ground-based geomagnetic surveys, we propose a small-scale geomagnetic field modeling method using Legendre polynomials. Combined with the data preprocessing techniques and the least squared estimation, a high-degree model is constructed to describe the small-scale structure of the field and draw the geomagnetic field maps. The results of the experiments show that the average misfit of total field intensity between the predicted model and the real observations is less than 30 nT. At the same time, fine structures of the field can be predicted, and the boundary effect is effectively suppressed, which facilitate improvement of modeling of the geomagnetic field. We also discuss the advantage and shortage of this modeling technique and its application scope. It is of great significance for application of the geomagnetic field to space exploration, minerals prospecting and subsurface structure probing. |
| WOS关键词 | EARTHS MAGNETIC-FIELD ; HARMONIC-ANALYSIS ; CHAMP |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000308571300019 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84518]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Ou Jia-Ming |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ou Jia-Ming,Du Ai-Min,Xu Wen-Yao,et al. The Legendre polynomials modeling method of small-scale geomagnetic fields[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2012,55(8):2669-2675. |
| APA | Ou Jia-Ming.,Du Ai-Min.,Xu Wen-Yao.,Hong Ming-Hua.,Chen Geng-Xiong.,...&Wang Yuan.(2012).The Legendre polynomials modeling method of small-scale geomagnetic fields.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,55(8),2669-2675. |
| MLA | Ou Jia-Ming,et al."The Legendre polynomials modeling method of small-scale geomagnetic fields".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 55.8(2012):2669-2675. |
入库方式： OAI收割
来源：地质与地球物理研究所
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