EMVIM: An empirical model for the magnetic field configuration near Venus
文献类型：期刊论文
| 作者 | He, Maosheng1; Vogt, Joachim1; Zhang, Tielong2; Rong, Zhaojin3 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 121期号:4页码:3362-3380 |
| DOI | 10.1002/2015JA022049 |
| 文献子类 | Article |
| 英文摘要 | More than 2000 orbits of Venus Express magnetic field measurements are condensed into Empirical Model of Venusian Induced Magnetic fields (EMVIM), an empirical model to quantify the magnetic configuration in the Venusian magnetosphere at low altitude (<500 km) as a function of the upstream solar wind magnetic field (IMF components) and the solar activity index F-10.7 as control variables. Empirical orthogonal function (EOF) analysis is used to construct a set of data-derived basis functions that are associated with different fundamental magnetospheric processes. The most important basis function represents the magnetic draping configuration of the IMFz component while the second important one represents the draping of the IMFy component. Solar wind-magnetosphere interactions are quantified through regression analysis of EOF amplitudes and the control variables. Combining the basis functions with regression coefficients results in a model with a determination coefficient R-2 of 0.29. As an applicational example, the model is used to quantify the density of the terminator end of the tail current JE in terms of cross-flow IMF component and F-10.7 as J(E)/A.km(-1)=3.75.(IMF perpendicular to+0.264 nT)/nT-0.0190.(IMF perpendicular to.F-10.7+30.3 nT.solar flux unit (1 sfu = 10(-22) W m(-2) Hz(-1)))/nT.sfu-0.00182.(F-10.7(2)-7237 sfu(2))/sfu(2), showing that the current strength is anticorrelated with solar activity. |
| WOS关键词 | SOLAR-WIND INTERACTION ; EXPRESS OBSERVATIONS ; MAGNETOTAIL ; ASYMMETRIES ; MAGNETOSHEATH ; VARIABILITY ; IONOSPHERE ; MARS |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000379960300038 |
| 资助机构 | Deutsche Forschungsgemeinschaft(DFG HE6915/1-1 ; Deutsche Forschungsgemeinschaft(DFG HE6915/1-1 ; DFG VO 855/3-1) ; DFG VO 855/3-1) ; Deutsche Forschungsgemeinschaft(DFG HE6915/1-1 ; Deutsche Forschungsgemeinschaft(DFG HE6915/1-1 ; DFG VO 855/3-1) ; DFG VO 855/3-1) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53384]  |
| 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 |
| 作者单位 | 1.Univ Bremen, Dept Phys & Earth Sci, Bremen, Germany 2.Austrian Acad Sci, Space Res Inst, Graz, Austria 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Maosheng,Vogt, Joachim,Zhang, Tielong,et al. EMVIM: An empirical model for the magnetic field configuration near Venus[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2016,121(4):3362-3380. |
| APA | He, Maosheng,Vogt, Joachim,Zhang, Tielong,&Rong, Zhaojin.(2016).EMVIM: An empirical model for the magnetic field configuration near Venus.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,121(4),3362-3380. |
| MLA | He, Maosheng,et al."EMVIM: An empirical model for the magnetic field configuration near Venus".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 121.4(2016):3362-3380. |
入库方式： OAI收割
来源：地质与地球物理研究所
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