Efficiency of solar wind energy coupling to the ionosphere
文献类型：期刊论文
| 作者 | Guo, Jianpeng; Feng, Xueshang; Emery, Barbara A.; Wang, Yi |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2012 |
| 卷号 | 117页码:A07303 |
| ISSN号 | 0148-0227 |
| 通讯作者 | Guo, JP (reprint author), Chinese Acad Sci, State Key Lab Space Weather, CSSAR, SIGMA Weather Grp, Beijing 100190, Peoples R China. |
| 中文摘要 | We present a statistical investigation into the variations of the ionospheric energy coupling efficiencies with the solar wind energy input, the interplanetary magnetic field (IMF) clock angle and the solar wind dynamic pressure. The ionospheric energy coupling efficiencies are defined as the ratios of the ionospheric energy deposition (namely auroral precipitation, Joule heating, and their total) to the solar wind energy input. We find that the ionospheric energy coupling efficiencies decrease exponentially with the solar wind energy input. Moreover, it is the same case under geomagnetic storm conditions. Our results also show that the energy coupling efficiencies are dependent on the IMF clock angle and almost independent of the solar wind dynamic pressure. These results will help us estimate and predict energy transfer from the solar wind to the thermosphere-ionosphere system under extreme space weather conditions, particularly severe geomagnetic storms. |
| 英文摘要 | We present a statistical investigation into the variations of the ionospheric energy coupling efficiencies with the solar wind energy input, the interplanetary magnetic field (IMF) clock angle and the solar wind dynamic pressure. The ionospheric energy coupling efficiencies are defined as the ratios of the ionospheric energy deposition (namely auroral precipitation, Joule heating, and their total) to the solar wind energy input. We find that the ionospheric energy coupling efficiencies decrease exponentially with the solar wind energy input. Moreover, it is the same case under geomagnetic storm conditions. Our results also show that the energy coupling efficiencies are dependent on the IMF clock angle and almost independent of the solar wind dynamic pressure. These results will help us estimate and predict energy transfer from the solar wind to the thermosphere-ionosphere system under extreme space weather conditions, particularly severe geomagnetic storms. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences [KZZD-EW-01-4]; 973 program [2012CB825601]; National Natural Science Foundation of China [40921063, 40890162, 41031066, 40904049, 41004082]; Specialized Research Fund for State Key Laboratories; National Science Foundation |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3274]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Guo, Jianpeng,Feng, Xueshang,Emery, Barbara A.,et al. Efficiency of solar wind energy coupling to the ionosphere[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2012,117:A07303. |
| APA | Guo, Jianpeng,Feng, Xueshang,Emery, Barbara A.,&Wang, Yi.(2012).Efficiency of solar wind energy coupling to the ionosphere.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,117,A07303. |
| MLA | Guo, Jianpeng,et al."Efficiency of solar wind energy coupling to the ionosphere".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 117(2012):A07303. |
入库方式： OAI收割
来源：国家空间科学中心
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