Magnetospheric vortices and their global effect after a solar wind dynamic pressure decrease
文献类型：期刊论文
| 作者 | Zhao, HY; Shen, XC; Tang, BB; Tian, AM; Shi, QQ; Weygand, JM; Yao, ZH; Zong, QG; Fu, SY; Yao, ST |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2016 |
| 卷号 | 121期号:2页码:1071-1077 |
| 关键词 | negative solar wind dynamic pressure pulse magnetosphere vortex field-aligned current |
| ISSN号 | 2169-9380 |
| 通讯作者 | Shi, QQ (reprint author), Shandong Univ, Sch Space Sci & Phys, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai, Peoples R China. |
| 英文摘要 | Using multipoint data from three Time History of Events and Macroscale Interactions during Substorms (THEMIS) satellites, we report a magnetospheric flow vortex driven by a negative solar wind dynamic pressure pulse. The observed vortex rotated in a direction opposite to that associated with positive solar wind dynamic pressure pulses. The vortex was moving tailward, as confirmed by a global magnetohydrodynamics (MHD) simulation. In addition, the equivalent ionospheric currents (EICs) deduced from ground magnetometer station data reveal that a current vortex in the ionosphere near the foot point of the satellites has a rotation sense consistent with that observed in the magnetosphere. The field-aligned current (FAC) density estimated from three THEMIS satellites is about 0.15nA/m(2), and the total FAC of the vortex is about 1.5-3x10(5)A, on the order of the total FAC in a pseudobreakup, but less than the total FAC in most moderate substorms, 10(6)A. Key Points |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/5401]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Zhao, HY,Shen, XC,Tang, BB,et al. Magnetospheric vortices and their global effect after a solar wind dynamic pressure decrease[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2016,121(2):1071-1077. |
| APA | Zhao, HY.,Shen, XC.,Tang, BB.,Tian, AM.,Shi, QQ.,...&Pu, ZY.(2016).Magnetospheric vortices and their global effect after a solar wind dynamic pressure decrease.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,121(2),1071-1077. |
| MLA | Zhao, HY,et al."Magnetospheric vortices and their global effect after a solar wind dynamic pressure decrease".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 121.2(2016):1071-1077. |
入库方式： OAI收割
来源：国家空间科学中心
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