| 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 Publication | CHINESE SCIENCE BULLETIN
 |
| 2013-11-01 | |
| Volume | 58Issue:33Pages:4126-4132 |
| ISSN | 1001-6538 |
| Language | 英语 |
| Keyword | Solar Wind Dynamic Pressure Ionosphere Plasmasphere Southward Imf Dawn-dusk Electric Field |
| Abstract | 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 (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 |
| Identifier | http://ir.nssc.ac.cn/handle/122/1544 |
| Collection | 空间科学部 |
| Corresponding Author | 北京8701信箱 |
| Affiliation | 1.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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