NAOC Open IR
A study of ionospheric irregularities with spatial fluctuation of TEC
Ma, Guanyi1; Li, Qi2; Li, Jinghua1; Wan, Qingtao1; Fan, Jiangtao1; Wang, Xiaolan1; Maruyama, Takashi1,3; Zhang, Jie1
2020-12-01
Source PublicationJOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
ISSN1364-6826
Volume211Pages:8
AbstractIonospheric irregularities are small-scale disturbances in the ionosphere which disrupt radio waves by causing amplitude and phase scintillations. Global Navigation Satellite System (GNSS) network can work as twodimensional array to provide the spatial structure of the irregularities. With derived vertical total electron content (VTEC), we propose a spatial fluctuation of TEC (SFT) parameter to identify and analyze ionospheric irregularities. It is defined as the spatial dispersion of VTEC within a specific area at a given time. With the observations from the GNSS Earth Observation Network of Japan (GEONET), the size of the specific area for SFT calculation can be chosen as 0.8 degrees x 0.8 degrees in longitude and latitude, which corresponds to approximately 77 km x 95 km at 35 degrees N at 400 km height. An SFT map is generated by sliding window at a step size of 0.1 degrees, which shows the spatial structure of the ionospheric irregularities and hence gives the size, shape, orientation and intensity distribution of the irregularity structures. Evolution of ionospheric irregularities can be studied with SFT maps. Case studies are carried out for three strong irregularity events on February 12, 2000, March 20, 2001 and November 10, 2004. The irregularities are found to present as anisotropic branching structures, which elongate in north-south direction when first seen at lower latitudes. The structures can move and deviate from their previous orientations, and eventually drift perpendicular to their orientations. Such analyses with SFT should be interesting for morphology study and model construction of ionospheric irregularities.
KeywordTEC Ionospheric irregularity Spatial fluctuation of TEC (SFT) GEONET
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project"
DOI10.1016/j.jastp.2020.105485
WOS KeywordPLASMA BUBBLES ; STORM ; DISTURBANCES
Language英语
Funding ProjectNational Natural Science Foundation of China[12073049] ; National Natural Science Foundation of China[U2031146] ; National Natural Science Foundation of China[11873064] ; National Key Research Program of China "Collaborative Precision Positioning Project"[2016YFB0501900]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China "Collaborative Precision Positioning Project" ; National Key Research Program of China "Collaborative Precision Positioning Project"
WOS Research AreaGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS SubjectGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS IDWOS:000591364200005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/81127
Collection中国科学院国家天文台
Corresponding AuthorMa, Guanyi
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China
2.China Satellite Nav Off, Test & Assessment Res Ctr, Beijing, Peoples R China
3.Natl Inst Informat & Commun Technol, Koganei, Tokyo, Japan
Recommended Citation
GB/T 7714
Ma, Guanyi,Li, Qi,Li, Jinghua,et al. A study of ionospheric irregularities with spatial fluctuation of TEC[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2020,211:8.
APA Ma, Guanyi.,Li, Qi.,Li, Jinghua.,Wan, Qingtao.,Fan, Jiangtao.,...&Zhang, Jie.(2020).A study of ionospheric irregularities with spatial fluctuation of TEC.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,211,8.
MLA Ma, Guanyi,et al."A study of ionospheric irregularities with spatial fluctuation of TEC".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 211(2020):8.
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