Magnetic Energy Conversion and Transport in the Terrestrial Magnetotail Due to Dipolarization Fronts
文献类型：期刊论文
| 作者 | Wang, Lei1,2,3; Huang, Can1,2,3; Cao, Xin1,2,3; Du, Aimin1,2,3,4; Ge, Yasong S.1,2,3 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 125期号:10页码:11 |
| ISSN号 | 2169-9380 |
| 关键词 | dipolarization front magnetic energy conversion and transport magnetotail |
| DOI | 10.1029/2020JA028568 |
| 英文摘要 | Dipolarization front (DF) is an important region involved with energy conversion and flux transport in the planet's magnetotail. Using observation data from the recent Magnetospheric Multiscale (MMS) mission, we have identified and analyzed 215 DF events. Significant magnetic energy conversion and transport are observed at the DFs, which show strong dawn-dusk asymmetry. We find that the transport process dominates the change of local magnetic energy. Nearly 70% of the events show net Poynting flux flowing into the DF region. Such effect is more significant than local magnetic energy dissipation, averagely. When DF approaches the near-Earth region, the net flow-in Poynting flux decreases and magnetic energy dissipation increases. Our results suggest that the downstream magnetic energies of transient magnetic reconnections in the midtail may be transported to the near-Earth region by one DF event after another. These intensive strikes to the magnetosphere in the near-planet region may drive stronger storms, compared with the previous knowledge about DF. Plain Language Summary Dipolarization front (DF), a sharp boundary with a scale of ion inertial length, is frequently observed at the nightside of the terrestrial magnetosphere. It is widely believed that DF plays a key role in magnetic flux transport and energy conversion in the magnetotail. Reliable data from Magnetospheric Multiscale (MMS) give us an opportunity to investigate the magnetic energy conversion and transport associated with DF. We have statistically studied 215 DF events and found that the magnetic dissipation increases when DF moves toward the near-Earth region. It is interesting that the change of local magnetic energy mainly results from the net inflow Poynting flux, which is much larger than the magnetic energy dissipation in the midtail. These results suggest that DF has a long lifetime during the transport in the magnetotail and might produce a more intense impact on the inner magnetosphere and ionosphere. |
| WOS关键词 | PLASMA SHEET ; ION REFLECTION ; RECONNECTION ; FIELD ; ACCELERATION ; PARTICLE ; FLOW ; CLUSTER ; EVENT |
| 资助项目 | National Natural Science Foundation of China[41674168] ; National Natural Science Foundation of China[41674182] ; National Natural Science Foundation of China[41774176] ; National Natural Science Foundation of China[41874080] ; National Natural Science Foundation of China[41974173] ; National Natural Science Foundation of China[41974206] ; Beijing Municipal Science and Technology Commission[Z191100004319001] ; preresearch Project on Civil Aerospace Technologies - CNSA[D020103] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA14040403] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA14040404] ; Youth Innovation Promotion Association, Chinese Academy of Sciences |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000600990300042 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; preresearch Project on Civil Aerospace Technologies - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/99949]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Huang, Can |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 4.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Lei,Huang, Can,Cao, Xin,et al. Magnetic Energy Conversion and Transport in the Terrestrial Magnetotail Due to Dipolarization Fronts[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2020,125(10):11. |
| APA | Wang, Lei,Huang, Can,Cao, Xin,Du, Aimin,&Ge, Yasong S..(2020).Magnetic Energy Conversion and Transport in the Terrestrial Magnetotail Due to Dipolarization Fronts.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,125(10),11. |
| MLA | Wang, Lei,et al."Magnetic Energy Conversion and Transport in the Terrestrial Magnetotail Due to Dipolarization Fronts".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 125.10(2020):11. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。