Joint establishment of the geomagnetic model for mainland China based on CHAMP satellite and surface vector data
文献类型：期刊论文
| 作者 | Feng Yan1,2; Sun Han3; Jiang Yong1; An Zhen-Chang4; Jiang Yi1; Liu Bao-Jia1; Huang Ya2; Zhang Hua1; Wu Ye-Wen1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 60期号:7页码:2522-2533 |
| ISSN号 | 0001-5733 |
| 关键词 | Geomagnetic field Joint modeling Spherical Cap Harmonic model Chinese Meridian project CHAMP satellite CM4 IGRF12 |
| DOI | 10.6038/cjg20170702 |
| 文献子类 | Article |
| 英文摘要 | We firstly made a pre-processing to vector data of magnetism from surface observational stations and CHAMP satellite, along with newest 12 Chinese Meridian Project observations; then put all data into a specific time point by the 12th generation International Reference Field (IGRF12) model. Moreover, the external fields that include the main field, ionospheric field, magnetospheric field, their induced field, and the weak toroidal magnetic field were respectively removed by IGRF12 and the 4th generation Comprehensive Model (CM4) models. Finally, the China lithospheric field (elements X, Y, Z and F) model (SCH2000) was created by the spherical cap harmonic model, and the China geomagnetic field (CGRF2000) was created by IGRF12. During the modeling process, the effects from the altitude term, the selection of truncation level and the control of boundary were seriously considered. In terms of comparison of the Root-Mean-Square (RMS) error and so on, the SCH2000 with degree 8 was thought to be an ideal joint model to describe the lithospheric field over China, which were also compared with models like SCH1936, CM4 and Taylor polynomial. We found that their results, to some degrees, are consistent.. In view of location and intensity, SCH2000 reflects the lithospheric field more precisely compared to other regional models. Some differences between SCH2000 and CM4 mainly result from the measuring data and truncation level. Comparison shows the variations with altitudes are close between SCH2000 and CM4. As for the distributions of magnetic fields, there is also a good consistence between CGRF2000 and IGRF12 models. |
| WOS关键词 | LITHOSPHERIC MAGNETIC-FIELD ; CAP HARMONIC-ANALYSIS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000405160100002 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/93170]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Feng Yan |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Inst Space Weather, Nanjing 210044, Peoples R China 2.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China 3.Xintianyuan Inst Disaster Prevent & Reduct, Inner Mongolia 010051, Hohhot, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng Yan,Sun Han,Jiang Yong,et al. Joint establishment of the geomagnetic model for mainland China based on CHAMP satellite and surface vector data[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2017,60(7):2522-2533. |
| APA | Feng Yan.,Sun Han.,Jiang Yong.,An Zhen-Chang.,Jiang Yi.,...&Wu Ye-Wen.(2017).Joint establishment of the geomagnetic model for mainland China based on CHAMP satellite and surface vector data.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,60(7),2522-2533. |
| MLA | Feng Yan,et al."Joint establishment of the geomagnetic model for mainland China based on CHAMP satellite and surface vector data".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 60.7(2017):2522-2533. |
入库方式： OAI收割
来源：地质与地球物理研究所
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