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Numerical study on the response of the Earth's magnetosphere-ionosphere system to a super solar storm
Wang Chi; Li Hui; Guo XiaoCheng; Ding Kai; Huang ZhaoHui; Wang, C (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationSCIENCE CHINA-EARTH SCIENCES
2012
Volume55Issue:6Pages:1037-1042
ISSN1674-7313
Language英语
KeywordSpace Weather Solar Storm Magnetosphere-ionosphere System Numerical Simulation
AbstractWith the approaching of the 24th solar cycle peak year (2012-2014), the impacts of super solar storms on the geospace environment have drawn attentions. Based on the geomagnetic field observations during Carrington event in 1859, we estimate the interplanetary solar wind conditions at that time, and investigate the response of the magnetosphere-ionosphere system to this extreme solar wind conditions using global 3D MHD simulations. The main findings include: 1) The day-side magnetopause and bow shock are compressed to 4.3 and 6.0 Re (Earth radius), and their flanks are also strongly compressed. The magnetopause shifts inside the geosynchronous orbit, exposing geosynchronous satellites in the solar wind in the magnetosheath. 2) During the storm, the region-1 current increases by about 60 times, and the cross polar potential drop increases by about 80 times; the reconnection voltage is about 5 to 6 times larger than the average storms, which means a larger amount of the solar wind energy enters the magnetosphere, resulting in strong space weather phenomena.; With the approaching of the 24th solar cycle peak year (2012-2014), the impacts of super solar storms on the geospace environment have drawn attentions. Based on the geomagnetic field observations during Carrington event in 1859, we estimate the interplanetary solar wind conditions at that time, and investigate the response of the magnetosphere-ionosphere system to this extreme solar wind conditions using global 3D MHD simulations. The main findings include: 1) The day-side magnetopause and bow shock are compressed to 4.3 and 6.0 Re (Earth radius), and their flanks are also strongly compressed. The magnetopause shifts inside the geosynchronous orbit, exposing geosynchronous satellites in the solar wind in the magnetosheath. 2) During the storm, the region-1 current increases by about 60 times, and the cross polar potential drop increases by about 80 times; the reconnection voltage is about 5 to 6 times larger than the average storms, which means a larger amount of the solar wind energy enters the magnetosphere, resulting in strong space weather phenomena.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3144
Collection空间科学部
Corresponding AuthorWang, C (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wang Chi,Li Hui,Guo XiaoCheng,et al. Numerical study on the response of the Earth's magnetosphere-ionosphere system to a super solar storm[J]. SCIENCE CHINA-EARTH SCIENCES,2012,55(6):1037-1042.
APA Wang Chi,Li Hui,Guo XiaoCheng,Ding Kai,Huang ZhaoHui,&Wang, C .(2012).Numerical study on the response of the Earth's magnetosphere-ionosphere system to a super solar storm.SCIENCE CHINA-EARTH SCIENCES,55(6),1037-1042.
MLA Wang Chi,et al."Numerical study on the response of the Earth's magnetosphere-ionosphere system to a super solar storm".SCIENCE CHINA-EARTH SCIENCES 55.6(2012):1037-1042.
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