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  4. 中国科学院地球与行星物理重点实验室
Solar flare effects in the Earth's magnetosphere

文献类型：期刊论文

作者Liu, Jing1; Wang, Wenbin2; Qian, Liying2; Lotko, William2,3; Burns, Alan G.2; Pharr, Kevin2; Lug, Gang2; Solomon, Stanley C.2; Liu, Libo4; Wan, Weixing4
刊名NATURE PHYSICS
出版日期2021-03-22
页码12
ISSN号1745-2473
DOI10.1038/s41567-021-01203-5
英文摘要The Earth's magnetosphere is the outermost layer of the geospace system deflecting energetic charged particles from the Sun and solar wind. The solar wind has major impacts on the Earth's magnetosphere, but it is unclear whether the same holds for solar flares-a sudden eruption of electromagnetic radiation on the Sun. Here we use a recently developed whole geospace model combined with observational data from the 6 September 2017 X9.3 solar flare event to reveal solar flare effects on magnetospheric dynamics and on the electrodynamic coupling between the magnetosphere and its adjacent ionosphere, the ionized part of Earth's upper atmosphere. We observe a rapid and large increase in flare-induced photoionization of the polar ionospheric E-region at altitudes between 90 km and 150 km. This reduces the efficiency of mechanical energy conversion in the dayside solar wind-magnetosphere interaction, resulting in less Joule heating of the Earth's upper atmosphere, a reconfiguration of magnetosphere convection, as well as changes in dayside and nightside auroral precipitation. This work thus demonstrates that solar flare effects extend throughout the geospace via electrodynamic coupling, and are not limited-as previously believed-to the atmospheric region where radiation energy is absorbed(1).
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; NSF of China[42074188] ; NSF of China[42030202] ; US NSF[1739188] ; US NSF[1522133] ; US NSF[AGS1452309]
WOS研究方向Physics
语种英语
WOS记录号WOS:000631498200003
出版者NATURE RESEARCH
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF of China ; NSF of China ; US NSF ; US NSF ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF of China ; NSF of China ; US NSF ; US NSF ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF of China ; NSF of China ; US NSF ; US NSF ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF of China ; NSF of China ; US NSF ; US NSF
源URL[http://ir.iggcas.ac.cn/handle/132A11/101017]  
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Liu, Jing
作者单位1.Shandong Univ, Inst Space Sci, Weihai, Peoples R China
2.Natl Ctr Atmospher Res, High Altitude Observ, POB 3000, Boulder, CO 80307 USA
3.Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
5.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA
6.MIT, Haystack Observ, Westford, MA 01886 USA
7.Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
推荐引用方式
GB/T 7714		 Liu, Jing,Wang, Wenbin,Qian, Liying,et al. Solar flare effects in the Earth's magnetosphere[J]. NATURE PHYSICS,2021:12.
APA Liu, Jing.,Wang, Wenbin.,Qian, Liying.,Lotko, William.,Burns, Alan G..,...&Wilder, Frederick.(2021).Solar flare effects in the Earth's magnetosphere.NATURE PHYSICS,12.
MLA Liu, Jing,et al."Solar flare effects in the Earth's magnetosphere".NATURE PHYSICS (2021):12.

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来源：地质与地球物理研究所

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