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Long-Term Variations of Plasmaspheric Total Electron Content from Topside GPS Observations on LEO Satellites
Jin, Shuanggen1,2; Gao, Chao1,3; Yuan, Liangliang1; Guo, Peng1; Calabia, Andres2; Ruan, Haibing2; Luo, Peng1,4
2021-02-01
Source PublicationREMOTE SENSING
Volume13Issue:4Pages:15
AbstractThe plasmasphere is located above the ionosphere with low-energy plasma, which is an important component of the solar-terrestrial space environment. As the link between the ionosphere and the magnetosphere, the plasmasphere plays an important role in the coupling process. Therefore, it is of great significance to study the electron content variation of the plasmasphere for the solar-terrestrial space environment. Nowadays, the topside global positioning system (GPS) observations on Low Earth Orbit (LEO) satellites provide a unique opportunity to estimate and study variations in the plasmasphere. In this paper, the plasmaspheric total electron content (PTEC) is estimated, and its long-term variations are studied from topside GPS observations onboard the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC). The PTEC in the daytime is higher than that in the nighttime, with the peak between 14:00 and 17:00 in the magnetic local time, while the minimum value of PTEC in the belt appears between 3:00 and 6:00 in the magnetic local time before sunrise. For seasonal variations, the PTEC is the highest in spring of the northern hemisphere and the lowest in summer of the northern hemisphere regardless of the state of the solar activity. The long-term variation in PTEC is further analyzed using 11-year COSMIC GPS observation data from 2007 to 2017. A high correlation between PTEC and the F10.7 indices is found. Particularly in the geomagnetic high-latitude region during the daytime, the correlation coefficient reaches 0.93. The worst case occurs during the nighttime in the geomagnetic middle-latitude region, but the correlation coefficient is still higher than 0.88. The long-term variations of plasmaspheric TEC are mainly related to the solar activity.
Keywordplasmasphere PTEC GPS GCPM F10 7 index
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST
DOI10.3390/rs13040545
Language英语
Funding ProjectNational Natural Science Foundation of China[12073012] ; National Natural Science Foundation of China[41761134092] ; Shanghai Leading Talent Project[E056061] ; Jiangsu Province Distinguished Professor Project[R2018T20] ; Startup Foundation for Introducing Talent of NUIST[2243141801036]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000624414600001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79416
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.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
4.Shanghai Univ, Sch Commun & Informat Engn, Shanghai 200444, Peoples R China
Recommended Citation
GB/T 7714
Jin, Shuanggen,Gao, Chao,Yuan, Liangliang,et al. Long-Term Variations of Plasmaspheric Total Electron Content from Topside GPS Observations on LEO Satellites[J]. REMOTE SENSING,2021,13(4):15.
APA Jin, Shuanggen.,Gao, Chao.,Yuan, Liangliang.,Guo, Peng.,Calabia, Andres.,...&Luo, Peng.(2021).Long-Term Variations of Plasmaspheric Total Electron Content from Topside GPS Observations on LEO Satellites.REMOTE SENSING,13(4),15.
MLA Jin, Shuanggen,et al."Long-Term Variations of Plasmaspheric Total Electron Content from Topside GPS Observations on LEO Satellites".REMOTE SENSING 13.4(2021):15.
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