NAOC Open IR
Performance evaluation of IRI-2016 with GPS-derived TEC at the meridian of 110 degrees E in China of 2014
Wan, Qingtao1; Ma, Guanyi1; Li, Jinghua1; Wang, Xiaolan1; Lu, Weijun1,2; Maruyama, Takashi1,3; Fan, Jiangtao1; Zhang, Jie1
2020-05-01
Source PublicationJOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
ISSN1364-6826
Volume201Pages:9
AbstractThe latest version of the International Reference Ionosphere (IRI-2016) is evaluated for ionospheric total electron content (TEC) over China during a high solar activity phase of 2014. TEC is derived from observations by the GNSS receiver network of Crustal Movement Observation Network of China (CMONOC). IRI-2016 uses the NeQuick option for the topside electron density profile. The comparisons shows that IRI-2016 underestimates GPS-TEC slightly in spring and winter, but overestimates slightly in summer and autumn at the mid-latitudes of 35 degrees N-45 degrees N. The deviation of TEC estimation is about 5 TECU at 35 degrees N-45 degrees N. As a whole, IRI-2016 underestimates GPS-TEC at the lower latitudes of 15 degrees N-35 degrees N, and the deviations of TEC estimation are about 4 TECU, 10 TECU, 26 TECU and 33 TECU in summer, autumn, winter and spring, respectively. The largest difference between IRITEC and GPS-TEC is about 50 TECU at the northern crest of equatorial ionization anomaly (EIA) in spring. There is an obvious winter anomaly for GPS-TEC, while it is not predicted by IRI-2016. Due to the influence of nighttime enhancement of ionosphere, the extreme latitudinal gradient of GPS-TEC appears after sunset in spring and winter, while it is not shown on that of IRI-TEC. Because of the equatorial fountain effect, the maximum time rate of GPS-TEC appears at the beginning of EIA (similar to 10:00-11:00 LT) in equinoxes, while it is not shown on that of IRI-TEC. The most rapid decrease of IRI-TEC appears after sunset (similar to 19:00 LT) in spring and winter, while GPSTEC quickly decreases at 22:00 LT.
KeywordIRI-2016 GNSS Equatorial ionospheric anomaly Winter anomaly Nighttime enhancement
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China
DOI10.1016/j.jastp.2020.105206
WOS KeywordANOMALY CREST ; EQUATORIAL ; IRI ; REGION ; LATITUDES ; MODEL
Language英语
Funding ProjectNational Natural Science Foundation of China[11873064] ; National Key Research and Development Project of China[2016YFB0501900]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China
WOS Research AreaGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS SubjectGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS IDWOS:000525858900003
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/56128
Collection中国科学院国家天文台
Corresponding AuthorWan, Qingtao
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan
Recommended Citation
GB/T 7714
Wan, Qingtao,Ma, Guanyi,Li, Jinghua,et al. Performance evaluation of IRI-2016 with GPS-derived TEC at the meridian of 110 degrees E in China of 2014[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2020,201:9.
APA Wan, Qingtao.,Ma, Guanyi.,Li, Jinghua.,Wang, Xiaolan.,Lu, Weijun.,...&Zhang, Jie.(2020).Performance evaluation of IRI-2016 with GPS-derived TEC at the meridian of 110 degrees E in China of 2014.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,201,9.
MLA Wan, Qingtao,et al."Performance evaluation of IRI-2016 with GPS-derived TEC at the meridian of 110 degrees E in China of 2014".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 201(2020):9.
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