Transport of cold ions from the polar ionosphere to the plasma sheet | |
Kun Li ; S. Haaland ; A. Eriksson ; M. André ; E. Engwall ; Y. Wei ; E. A. Kronberg ; M. Fränz ; P. W. Daly ; H. Zhao ; Q. Y. Ren | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS |
2013 | |
卷号 | 118期号:9页码:5467–5477 |
关键词 | cold ion outflow magnetotail plasma sheet polar ionosphere |
ISSN号 | 2169-9402 |
通讯作者 | 北京8701信箱 |
中文摘要 | Ionospheric outflow is believed to be a significant contribution to the magnetospheric plasma population. Ions are extracted from the ionosphere and transported downtail by the large-scale convection motion driven by dayside reconnection. In this paper, we use a comprehensive data set of cold ion (total energy less than 70 eV) measurements combined with simultaneous observations from the solar wind to investigate the fate of these ions. By tracing the trajectories of the ions, we are able to find out where in the magnetotail ions end up. By sorting the observation according to geomagnetic activity and solar wind parameters, we then generate maps of the fate regions in the magnetotail and investigate the effects of these drivers. Our results suggest that, on overall, for about 85% of the cases, the outflowing ions are transported to the plasma sheet. The region where the ions are deposited into the plasma sheet is larger during geomagnetic quiet time than during disturbed conditions. A persistent dawn-dusk asymmetry in the plasma sheet deposition is also observed. |
学科主题 | 空间物理 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.cssar.ac.cn/handle/122/1576] |
专题 | 国家空间科学中心_空间科学部 |
推荐引用方式 GB/T 7714 | Kun Li,S. Haaland,A. Eriksson,et al. Transport of cold ions from the polar ionosphere to the plasma sheet[J]. JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS,2013,118(9):5467–5477. |
APA | Kun Li.,S. Haaland.,A. Eriksson.,M. André.,E. Engwall.,...&Q. Y. Ren.(2013).Transport of cold ions from the polar ionosphere to the plasma sheet.JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS,118(9),5467–5477. |
MLA | Kun Li,et al."Transport of cold ions from the polar ionosphere to the plasma sheet".JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS 118.9(2013):5467–5477. |
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