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Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations
Gao, Chao1,2; Jin, Shuanggen1,3,4; Yuan, Liangliang1,2
2020-07-01
Source PublicationREMOTE SENSING
Volume12Issue:14Pages:18
AbstractGeomagnetic storms are extreme space weather events, which have considerable impacts on the ionosphere and power transmission systems. In this paper, the ionospheric responses to the geomagnetic storm on 22 June 2015, are analyzed from ground-based and satellite-based Global Navigation Satellite System (GNSS) observations as well as observational data of digital ionosondes, and the main physical mechanisms of the ionospheric disturbances observed during the geomagnetic storm are discussed. Salient positive and negative storms are observed from vertical total electron content (VTEC) based on ground-based GNSS observations at different stages of the storm. Combining topside observations of Low-Earth-Orbit (LEO) satellites (GRACE and MetOp satellites) with different orbital altitudes and corresponding ground-based observations, the ionospheric responses above and below the orbits are studied during the storm. To obtain VTEC from the slant TEC between Global Positioning System (GPS) and LEO satellites, we employ a multi-layer mapping function, which can effectively reduce the overall error caused by the single-layer geometric assumption where the horizontal gradient of the ionosphere is not considered. The results show that the topside observations of the GRACE satellite with a lower orbit can intuitively detect the impact caused by the fluctuation of the F2 peak height (hmF2). At the same time, the latitude range corresponding to the peak value of the up-looking VTEC on the event day becomes wider, which is the precursor of the Equatorial Ionization Anomaly (EIA). However, no obvious response is observed in the up-looking VTEC from MetOp satellites with higher orbits, which indicates that the VTEC responses to the geomagnetic storm mainly take place below the orbit of MetOp satellites.
Keywordgeomagnetic storm Ionosphere VTEC GRACE MetOp
Funding OrganizationNational Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project
DOI10.3390/rs12142200
WOS KeywordMAPPING FUNCTION ; LOW-LATITUDE ; REGION ; MODEL ; MIDDLE ; CHINA
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC) Project[41761134092] ; Shanghai Leading Talent Project[E056061]
Funding OrganizationNational Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project
WOS Research AreaRemote Sensing
WOS SubjectRemote Sensing
WOS IDWOS:000558016800001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82383
Collection中国科学院国家天文台
Corresponding AuthorJin, Shuanggen
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Surveying Engn, Nanjing 210044, Peoples R China
4.Jiangsu Engn Ctr Collaborat Nav Positioning & Sma, Nanjing 210044, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Gao, Chao,Jin, Shuanggen,Yuan, Liangliang. Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations[J]. REMOTE SENSING,2020,12(14):18.
APA Gao, Chao,Jin, Shuanggen,&Yuan, Liangliang.(2020).Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations.REMOTE SENSING,12(14),18.
MLA Gao, Chao,et al."Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations".REMOTE SENSING 12.14(2020):18.
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