| Simultaneous observations of plasmaspheric and ionospheric variations during magnetic storms in 2011: First result from Chinese Meridian Project | |
| Chi Wang; Qingmei Zhang; P. J. Chi; Chuanqi Li; 北京8701信箱 | |
| Department | 空间天气学国家重点实验室 |
| Source Publication | Journal of Geophysical Research: Space Physics
 |
| 2013 | |
| Volume | 118Issue:1Pages:99-104 |
| ISSN | 2169-9402 |
| Language | 英语 |
| Keyword | Plasmasphere Ionosphere |
| Abstract | The plasma transport between the plasmasphere and ionosphere during magnetic storms is a long-standing problem and is still not fully understood. Simultaneous observations of the plasmasphere and ionosphere are vital to understand the coupling between the two regions. In this study, using the measurements from the newly developed Chinese ground-based space weather monitoring network (Meridian Project), we investigate the plasmaspheric density at L ≃ 2 inferred from ground magnetometers and the ionospheric electron density inferred by digital ionosondes and GPS signals during magnetic storms in 2011. Five moderate magnetic storms with minimum Dst index between −47 and −103 nT during this period have been investigated. The observations show that the plasmaspheric density drops significantly by more than half of the prestorm value. The ionospheric F2 layer electron density NmF2 and the total electron content (TEC) show ~20–50% decreases, and the NmF2 and TEC reductions take place before the plasmaspheric density reaches its minimum. These findings suggest that the plasmaspheric depletion is very likely due to the reduced plasma supply from the ionosphere for the five moderate magnetic storms in 2011. Therefore, the plasmasphere dynamics seems to be controlled by the ionosphere during magnetic storms. |
| Funding Project | 中国科学院空间科学与应用研究中心 |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/1535 |
| Collection | 空间科学部 |
| Corresponding Author | 北京8701信箱 |
| Recommended Citation GB/T 7714 | Chi Wang,Qingmei Zhang,P. J. Chi,et al. Simultaneous observations of plasmaspheric and ionospheric variations during magnetic storms in 2011: First result from Chinese Meridian Project[J]. Journal of Geophysical Research: Space Physics,2013,118(1):99-104. |
| APA | Chi Wang,Qingmei Zhang,P. J. Chi,Chuanqi Li,&北京8701信箱.(2013).Simultaneous observations of plasmaspheric and ionospheric variations during magnetic storms in 2011: First result from Chinese Meridian Project.Journal of Geophysical Research: Space Physics,118(1),99-104. |
| MLA | Chi Wang,et al."Simultaneous observations of plasmaspheric and ionospheric variations during magnetic storms in 2011: First result from Chinese Meridian Project".Journal of Geophysical Research: Space Physics 118.1(2013):99-104. |
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| File Name/Size | DocType | Version | Access | License | ||
| 2013118199.pdf（1388KB） | 开放获取 | CC BY-NC-SA | Application Full Text | |||
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