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Dynamic Processes Associated With Prominent Ionospheric Variations in a Narrow Longitudinal Zone Near the EIA Crest Region as Revealed by ICON Satellite and Ground Beidou Receiver Observations Over South Asia

文献类型：期刊论文

作者Huang, Fuqing1,2,7,8; Lei, Jiuhou1,2,8; Luan, Xiaoli1,2,8; Li, Guozhu5,6; Wang, Yihan1,2,8; Zhu, Yajun7; Chen, Junjie4; Owolabi, Charles3; Dou, Xiankang2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2023-10-01
卷号128期号:10页码:11
ISSN号2169-9380
DOI10.1029/2023JA031981
英文摘要Neutral winds and plasma motions from the Ionospheric Connection Explorer mission were used to investigate dynamic processes associated with large regional total electron content (TEC) differences in a narrow longitudinal zone exceeding similar to 45 TECU obtained from dense Beidou geostationary receivers at low latitudes over South Asia. The TEC east-west asymmetry was defined to quantify this difference, which exceeded similar to 5 TECU per 1 degrees longitude distance and occurred around the equatorial ionization anomaly (EIA) crest on 31 March 2021 under geomagnetically quiescent conditions. Moreover, the magnetic meridional ion velocity exhibited a large longitude difference around the EIA crest during periods with strong ionospheric east-west asymmetry. Furthermore, the longitude difference variation was consistent with the TEC east-west asymmetry variation during 11-21 March 2020 and 27 March-4 April 2021. No significant correlations between TEC east-west asymmetry and longitude differences under conditions with neutral winds and magnetic zonal ion drifts were observed in either case. The different vertical plasma drifts could contribute to ionospheric changes with a zonal range of a few hundred kilometers. Recently, a sharp regional ionospheric longitudinal change over a few degrees was observed, and the regional ionospheric change in a narrow longitudinal zone (similar to 45 TECU) was much greater than the global variation (similar to 2-4 TECU) in the longitudinal wave-4 patterns. The physical processes that cause such strong regional ionospheric change are poorly understood. Here, neutral wind and plasma drift data from Ionospheric Connection Explorer, along with observations from dense Beidou geostationary receivers over South Asia, were used to explore ionospheric dynamic processes associated with large regional total electron content (TEC) variations. The different vertical plasma drifts driven by zonal electric fields may be a key factor in the formation of strong ionospheric variation, as indicated by the significant correlation between the TEC east-west asymmetry and longitude differences in magnetic meridional ion velocity in both the case study and statistical results. Neutral winds also greatly control the equatorial ionization anomaly (EIA) morphology; however, their longitude differences are not directly correlated with strong local ionospheric changes. This study provides an important view to understand the sharp ionospheric changes in a narrow longitudinal zone. The strong east-west asymmetry in total electron content (TEC) exceeded similar to 5 TECU per 1 degrees longitude is detected at the northern equatorial ionization anomaly (EIA) crestPlasma drift and neutral wind observations were used to explore dynamic processes associated with regional TEC changes in the EIA regionDifferent vertical plasma drifts driven by zonal electric fields could contribute to regional TEC changes around the EIA crest
WOS关键词MAGNETIC STORM ; WINDS ; MODEL ; TEC
资助项目This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog[41831070] ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog[42188101] ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog[42004136] ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog[42274195] ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog[42174193] ; National Natural Science Foundation of China[YSBR-018] ; Project of Stable Support for the Youth Team in Basic Research Field, CAS[183311KYSB20200003] ; International Partnership Program of the Chinese Academy of Sciences[YD2080002013] ; USTC Research Funds of the Double First-Class Initiative ; Specialized Research Fund for State Key Laboratories ; National Science and Technology Infrastructure of China
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001075811600001
出版者AMER GEOPHYSICAL UNION
资助机构This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; USTC Research Funds of the Double First-Class Initiative ; USTC Research Funds of the Double First-Class Initiative ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Science and Technology Infrastructure of China ; National Science and Technology Infrastructure of China ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; USTC Research Funds of the Double First-Class Initiative ; USTC Research Funds of the Double First-Class Initiative ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Science and Technology Infrastructure of China ; National Science and Technology Infrastructure of China ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; USTC Research Funds of the Double First-Class Initiative ; USTC Research Funds of the Double First-Class Initiative ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Science and Technology Infrastructure of China ; National Science and Technology Infrastructure of China ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; This work was supported by the National Natural Science Foundation of China (41831070, 42188101, 42004136, 42274195, and 42174193), the Project of Stable Support for the Youth Team in Basic Research Field, CAS (YSBR-018), the International Partnership Prog ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; Project of Stable Support for the Youth Team in Basic Research Field, CAS ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; USTC Research Funds of the Double First-Class Initiative ; USTC Research Funds of the Double First-Class Initiative ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Science and Technology Infrastructure of China ; National Science and Technology Infrastructure of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/110779]  
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Lei, Jiuhou
作者单位1.Univ Sci & Technol China, CAS Ctr Excellence Comparat Planetol, CAS Key Lab Geospace Environm, Mengcheng Natl Geophys Observ, Hefei, Peoples R China
2.Univ Sci & Technol China, Sch Earth & Space Sci, Deep Space Explorat Lab, Hefei, Peoples R China
3.Univ Alaska, Geophys Inst, Fairbanks, AK USA
4.Univ Hong Kong, Dept Earth Sci, Pokfulam, Hong Kong, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
7.Chinese Acad Sci, State Key Lab Space Weather, Beijing, Peoples R China
8.Collaborat Innovat Ctr Astronaut Sci & Technol, Harbin, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Fuqing,Lei, Jiuhou,Luan, Xiaoli,et al. Dynamic Processes Associated With Prominent Ionospheric Variations in a Narrow Longitudinal Zone Near the EIA Crest Region as Revealed by ICON Satellite and Ground Beidou Receiver Observations Over South Asia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2023,128(10):11.
APA Huang, Fuqing.,Lei, Jiuhou.,Luan, Xiaoli.,Li, Guozhu.,Wang, Yihan.,...&Dou, Xiankang.(2023).Dynamic Processes Associated With Prominent Ionospheric Variations in a Narrow Longitudinal Zone Near the EIA Crest Region as Revealed by ICON Satellite and Ground Beidou Receiver Observations Over South Asia.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,128(10),11.
MLA Huang, Fuqing,et al."Dynamic Processes Associated With Prominent Ionospheric Variations in a Narrow Longitudinal Zone Near the EIA Crest Region as Revealed by ICON Satellite and Ground Beidou Receiver Observations Over South Asia".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128.10(2023):11.

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来源：地质与地球物理研究所

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