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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; 北京8701信箱
Department太阳系探测联合研究中心
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS
2013
Volume118Issue:9Pages:5467–5477
ISSN2169-9402
Language英语
KeywordCold Ion Outflow Magnetotail Plasma Sheet Polar Ionosphere
AbstractIonospheric 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.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1576
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
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.,...&北京8701信箱.(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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