MHD simulation of energy transfer across magnetopause during sudden changes of the IMF orientation
文献类型：期刊论文
| 作者 | Jing, H.; Lu, J. Y.; Kabin, K.; Zhao, J. S.; Liu, Z. -Q.; Yang, Y. F.; Zhao, M. X.; Wang, M. |
| 刊名 | PLANETARY AND SPACE SCIENCE
 |
| 出版日期 | 2014 |
| 卷号 | 97页码:50-59 |
| ISSN号 | 0032-0633 |
| 关键词 | Energy transfer Magnetopause Substorm Reconnection MHD simulation |
| 通讯作者 | Lu, JY (reprint author), Nanjing Univ Informat Sci & Technol, Coll Math & Stat, Inst Space Weather, Nanjing, Jiangsu, Peoples R China. |
| 英文摘要 | A three-dimensional adaptive magnetohydrodynamic (MHD) model is used to investigate the energy flow from the solar wind to the magnetosphere in response to sudden turnings of the interplanetary magnetic field (IMF) on 5 June 1998. During this dynamic period, the size of magnetospheric cavity and the energy input fluctuated enormously. Due to the positive earth dipole tilt angle during the event, the distribution of energy transfer between northern and southern hemispheres of magnetopause is asymmetrical, with most energy transferred in the north hemisphere sunward of X-GSE > ORE. The electromagnetic and mechanical energy inputs increase rapidly after the arrival of an interplanetary shock, while the electromagnetic energy rises much more slowly after IMF turns from north to south. With a nearly invariable By component of IMF, under southward IMF the most electromagnetic energy is transferred near the plane anti-parallel to IMF clock angle, the most significant mechanical energy input occurs in the polar cusp of north hemisphere. In contrast, for northward IMF the electromagnetic energy is mostly transferred near the plane perpendicular to IMF clock angle, mechanical transferred energy occurs near equatorial plane of dayside magnetopause. Analyzing the distribution of the Poynting flux we show that the high-latitude reconnection causes different types of electromagnetic energy transfers into the magnetosphere during northward IMF especially with a large By component. It is also shown that the traditional energy transfer parameters from solar wind conditions do not include any of residual or hysteresis effects; therefore sometimes they do not reflect the right response to the solar wind variations. (C) 2014 Elsevier Ltd. All rights reserved. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/2748]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Jing, H.,Lu, J. Y.,Kabin, K.,et al. MHD simulation of energy transfer across magnetopause during sudden changes of the IMF orientation[J]. PLANETARY AND SPACE SCIENCE,2014,97:50-59. |
| APA | Jing, H..,Lu, J. Y..,Kabin, K..,Zhao, J. S..,Liu, Z. -Q..,...&Wang, M..(2014).MHD simulation of energy transfer across magnetopause during sudden changes of the IMF orientation.PLANETARY AND SPACE SCIENCE,97,50-59. |
| MLA | Jing, H.,et al."MHD simulation of energy transfer across magnetopause during sudden changes of the IMF orientation".PLANETARY AND SPACE SCIENCE 97(2014):50-59. |
入库方式： OAI收割
来源：国家空间科学中心
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