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Plasma transport between the ionosphere and plasmasphere in response to solar wind dynamic pressure pulsation
Zhang QingMei1,2; Wang Chi1,2; Li Hui2; Li ChuanQi1,3; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationCHINESE SCIENCE BULLETIN
2013-11-01
Volume58Issue:33Pages:4126-4132
ISSN1001-6538
Language英语
KeywordSolar Wind Dynamic Pressure Ionosphere Plasmasphere Southward Imf Dawn-dusk Electric Field
AbstractThe plasma transport between the plasmasphere and the ionosphere in response to the interplanetary conditions is still not fully understood until now. Simultaneous observations of the plasmasphere and ionosphere from the newly developed Chinese Meridian Project provide a new opportunity for understanding the characteristic of the plasma transport and the coupling mechanism between these two regions. We investigate the response of the plasmasphere (L≈2) and ionosphere to the solar wind dynamic pressure pulse during geomagnetically quiet period of 21-27 March 2011. The response of the plasmasphere shows a significant depletion. The plasmaspheric density nearly decreases by half in response to the solar wind dynamic pressure pulse, and subsequently recovers to the original level in 1-2 d. Meanwhile, the maximum electron density of the ionospheric F2 layer (NmF2) and the total electron content (TEC) increase by 13% and 21%, respectively, and then gradually recover, which is opposite to the behavior during magnetic storms. Preliminary analysis shows that the plasmaspheric depletion may be mainly caused by the southward interplanetary magnetic field and changing dawn-dusk electric field. The plasmaspheric density variations seem to be controlled by both the IMF and ionospheric conditions.; The plasma transport between the plasmasphere and the ionosphere in response to the interplanetary conditions is still not fully understood until now. Simultaneous observations of the plasmasphere and ionosphere from the newly developed Chinese Meridian Project provide a new opportunity for understanding the characteristic of the plasma transport and the coupling mechanism between these two regions. We investigate the response of the plasmasphere (La parts per thousand 2) and ionosphere to the solar wind dynamic pressure pulse during geomagnetically quiet period of 21-27 March 2011. The response of the plasmasphere shows a significant depletion. The plasmaspheric density nearly decreases by half in response to the solar wind dynamic pressure pulse, and subsequently recovers to the original level in 1-2 d. Meanwhile, the maximum electron density of the ionospheric F2 layer (NmF2) and the total electron content (TEC) increase by 13% and 21%, respectively, and then gradually recover, which is opposite to the behavior during magnetic storms. Preliminary analysis shows that the plasmaspheric depletion may be mainly caused by the southward interplanetary magnetic field and changing dawn-dusk electric field. The plasmaspheric density variations seem to be controlled by both the IMF and ionospheric conditions.
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/122/1544
Collection空间科学部
Corresponding Author北京8701信箱
Affiliation1.Nanjing Univ Informat Sci & Technol, Coll Math & Stat, Nanjing 210044, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China
3.Guangxi Normal Univ, Coll Elect Engn, Guilin 541004, Peoples R China
Recommended Citation
GB/T 7714
Zhang QingMei,Wang Chi,Li Hui,et al. Plasma transport between the ionosphere and plasmasphere in response to solar wind dynamic pressure pulsation[J]. CHINESE SCIENCE BULLETIN,2013,58(33):4126-4132.
APA Zhang QingMei,Wang Chi,Li Hui,Li ChuanQi,&北京8701信箱.(2013).Plasma transport between the ionosphere and plasmasphere in response to solar wind dynamic pressure pulsation.CHINESE SCIENCE BULLETIN,58(33),4126-4132.
MLA Zhang QingMei,et al."Plasma transport between the ionosphere and plasmasphere in response to solar wind dynamic pressure pulsation".CHINESE SCIENCE BULLETIN 58.33(2013):4126-4132.
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