Two-dimension theoretical modeling of ionospheric dynamo and its preliminary application
文献类型：期刊论文
| 作者 | Yu Tao1; Mao Tian1; Wang Yun-Gang1; Xie Hai-Yong2; Xia Chun-Liang3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2014-05-01 |
| 卷号 | 57期号:5页码:1357-1365 |
| 关键词 | Ionospheric dynamo Theoretical modeling Sq current system |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20140501 |
| 文献子类 | Article |
| 英文摘要 | In the geographic coordinate system, two-dimension theoretical ionospheric dynamo equation has been deduced. After solving this equation with the iteration method, we get the two-dimension current functions. Thereafter the ionospheric current and electric field are derived. Conductivities used in this model are calculated by the theoretical formulas. The parameters of background atmosphere and ionosphere in the formulas are given by external empirical models. Neutral winds and magnetic field are obtained from the HWM93 and IGRF2000 models respectively. This ionospheric theoretical dynamo model satisfactorily gives the shape of global Sq current and the characteristic of ionospheric dynamo electric field. In addition, the effects of altitude variation of winds and geomagnetic field on the simulation results have been investigated. It shows that in the heights from 90 km to 180 km, the result changes little with the altitude variation of magnetic field, but there is a distinct change with the height variation of winds. During the geomagnetic quiet period, we research the patterns of the Sq current foci and the total current intensity. Initial analysis shows that these patterns have a good correlation with the global distribution of geomagnetic field intensity. |
| WOS关键词 | SQ CURRENT SYSTEM ; ATMOSPHERIC SOLAR TIDES ; EQUATORIAL ELECTROJET ; LOW-LATITUDE ; FIELDS ; MIDDLE ; POSITION ; CURRENTS ; FOCUS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000336701200001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85773]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yu Tao |
| 作者单位 | 1.Natl Satellite Meteorol Ctr, CMA, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.China Univ Geosci, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu Tao,Mao Tian,Wang Yun-Gang,et al. Two-dimension theoretical modeling of ionospheric dynamo and its preliminary application[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(5):1357-1365. |
| APA | Yu Tao,Mao Tian,Wang Yun-Gang,Xie Hai-Yong,&Xia Chun-Liang.(2014).Two-dimension theoretical modeling of ionospheric dynamo and its preliminary application.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(5),1357-1365. |
| MLA | Yu Tao,et al."Two-dimension theoretical modeling of ionospheric dynamo and its preliminary application".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.5(2014):1357-1365. |
入库方式： OAI收割
来源：地质与地球物理研究所
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