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Geomagnetically Conjugate Observations of Equatorial Plasma Irregularities From Swarm constellation and Ground-Based GPS Stations

文献类型：期刊论文

作者Luo, Xiaomin1; Xiong, Chao2; Gu, Shengfeng1; Lou, Yidong1; Stolle, Claudia2,3; Wan, Xin4; Liu, Kangkang5; Song, Weiwei1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2019-05-01
卷号124期号:5页码:3650-3665
ISSN号2169-9380
DOI10.1029/2019JA026515
英文摘要The near-polar orbit satellites of Swarm mission provide a good opportunity to investigate the conjugacy of equatorial plasma irregularities (EPIs) since their trajectories at low latitudes are basically aligned with fixed geographical longitude. However, the Swarm in situ electron density occasionally shows EPIs at only one hemisphere at this longitude. In this study, we provide detailed analysis of such EPI events from the in situ electron densities and onboard global positioning system (GPS) measurements of Swarm low pair satellites, and simultaneous GPS data from two geomagnetically conjugate ground stations at the Africa longitudes. The result indicates that when Swam in situ electron density sometime shows EPIs at only one hemisphere, the GPS scintillations are still observed from the Swarm onboard receiver and by the two conjugate ground stations. It implies that the EPIs should generally elongate along the geomagnetic flux tube. More than two-year statistic results show that the onset time of scintillation in the northern station is on average 16 and 18 min earlier than that in the southern station for September equinox and December solstice in 2015, while for March equinox in 2016 the onset time of scintillation of northern station is about 11 min later than that of southern station, which indicates the asymmetry features of EPIs along the flux tube. Further analysis of nearly three-year GPS data from two conjugate stations at the Asia longitudes, we find that during solar maximum years the local sunset time plays an important role for causing the difference of onset time of scintillation between two conjugate stations.
WOS关键词LATITUDE IONOSPHERIC SCINTILLATION ; DEPLETIONS ; SATELLITE
资助项目National Key Research and Development Program of China[2017YFB0503401] ; National Key Research and Development Program of China[2016YFB0501802] ; Wuhan University
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000471601500035
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Wuhan University ; Wuhan University ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Wuhan University ; Wuhan University ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Wuhan University ; Wuhan University ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Wuhan University ; Wuhan University
源URL[http://ir.iggcas.ac.cn/handle/132A11/92488]  
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Gu, Shengfeng; Lou, Yidong
作者单位1.Wuhan Univ, GNSS Res Ctr, Wuhan, Hubei, Peoples R China
2.GFZ German Res Ctr Geosci, Potsdam, Germany
3.Univ Potsdam, Fac Sci, Potsdam, Germany
4.Wuhan Univ, Coll Elect Informat, Wuhan, Hubei, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Luo, Xiaomin,Xiong, Chao,Gu, Shengfeng,et al. Geomagnetically Conjugate Observations of Equatorial Plasma Irregularities From Swarm constellation and Ground-Based GPS Stations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019,124(5):3650-3665.
APA Luo, Xiaomin.,Xiong, Chao.,Gu, Shengfeng.,Lou, Yidong.,Stolle, Claudia.,...&Song, Weiwei.(2019).Geomagnetically Conjugate Observations of Equatorial Plasma Irregularities From Swarm constellation and Ground-Based GPS Stations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,124(5),3650-3665.
MLA Luo, Xiaomin,et al."Geomagnetically Conjugate Observations of Equatorial Plasma Irregularities From Swarm constellation and Ground-Based GPS Stations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 124.5(2019):3650-3665.

入库方式： OAI收割

来源：地质与地球物理研究所

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