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  4. 中国科学院地球与行星物理重点实验室
Impacts of Ionospheric Conductance on Magnetosphere-Ionosphere Coupling

文献类型：期刊论文

作者Liu, Jing2; Wang, Wenbin3; Qian, Liying3; Pham, Kevin3; Liu, Libo1,4,5,6; Li, Qiaoling2; Li, Shuhan2; Liu, Xuanqing2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2023-02-01
卷号128期号:2页码:16
ISSN号2169-9380
关键词ionosphere conductance magnetosphere-ionosphere coupling
DOI10.1029/2022JA030864
英文摘要Understanding the consequence of the complex interplay between solar flare and geomagnetic storm on the magnetosphere-ionosphere (M-I) coupling is a critical aspect to space weather research. This is the first attempt to simulate the concurrent solar flare and geomagnetic storm effects on M-I coupling using the state-of-art geospace model which integrates Lyon-Fedder-Mobarry -Thermosphere-Ionosphere-Electrodynamics General Circulation Model -the Rice Convection ring current Model (LTR) in a self-consistent way. Our results indicate that dayside E-region electron density enhancements peak nearly at the same time as the flare and these electron density enhancements at middle latitudes are not very sensitive to storm forcing. F-region electron densities also have an immediate response to solar flares but take longer to recover compared to E-region ionosphere, and dayside F-region electron density enhancements are more prominent for more stormy conditions. These dayside middle-latitude F-region enhancements intensify tongue of ionization in the polar cap region. Both E- and F-region electron density increases contribute to polar ionosphere conductance enhancements that have both local and global consequences. Flare-induced conductance enhancements tend to reduce the amount of Joule dissipation into upper atmosphere and cross polar cap potential around solar flare peak (12:00 UT), and increase dayside field aligned currents and Joule dissipation afterward (12:20-13:30 UT). These effects are more appreciable for stronger solar wind driving conditions. These simulation results provide important references for interpreting observed solar activity/cycle dependence of magnetosphere-ionosphere coupling phenomena.
WOS关键词STORM-ENHANCED DENSITY ; MAGNETIC STORMS ; ELECTRIC-FIELD ; LOW LATITUDES ; POLAR TONGUE ; CONDUCTIVITY ; SIMULATION ; THERMOSPHERE ; PENETRATION ; DEPENDENCE
资助项目National Natural Science Foundation of China[42074188] ; National Natural Science Foundation of China[42122031] ; Shandong Provincial Natural Science~Foundation[ZR2022JQ18] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; NSF
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000991098200001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shandong Provincial Natural Science~Foundation ; Shandong Provincial Natural Science~Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF ; NSF ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shandong Provincial Natural Science~Foundation ; Shandong Provincial Natural Science~Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF ; NSF ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shandong Provincial Natural Science~Foundation ; Shandong Provincial Natural Science~Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF ; NSF ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shandong Provincial Natural Science~Foundation ; Shandong Provincial Natural Science~Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; NSF ; NSF
源URL[http://ir.iggcas.ac.cn/handle/132A11/110944]  
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.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
2.Shandong Univ, Inst Space Sci, Sch Space Sci & Phys, Shandong Key Lab Opt Astron & Solar Terr Environm, Weihai, Peoples R China
3.Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO USA
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Heilongjiang Mohe Observ Geophys, Beijing, Peoples R China
6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jing,Wang, Wenbin,Qian, Liying,et al. Impacts of Ionospheric Conductance on Magnetosphere-Ionosphere Coupling[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2023,128(2):16.
APA Liu, Jing.,Wang, Wenbin.,Qian, Liying.,Pham, Kevin.,Liu, Libo.,...&Liu, Xuanqing.(2023).Impacts of Ionospheric Conductance on Magnetosphere-Ionosphere Coupling.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,128(2),16.
MLA Liu, Jing,et al."Impacts of Ionospheric Conductance on Magnetosphere-Ionosphere Coupling".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128.2(2023):16.

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来源：地质与地球物理研究所

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