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Precision Assessment and Correction of Global Ionospheric Maps Based on Jason-1/2/3 VTEC
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Di MENG1, Kaixin WANG1, Jiandi FENG1, 2, *, Zhihao ZHANG1
Journal of Geodesy and Geodynamics | 2025, 45(5) : 512 - 517
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Journal of Geodesy and Geodynamics | 2025, 45(5): 512-517
Precision Assessment and Correction of Global Ionospheric Maps Based on Jason-1/2/3 VTEC
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Di MENG1, Kaixin WANG1, Jiandi FENG1, 2, *, Zhihao ZHANG1
Affiliations
  • 1 School of Civil Engineering and Geomatics, Shandong University of Technology, 266 West-Xincun Road, Zibo 255000, China
  • 2 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China
  • MENG Di, postgraduate, majors in characteristics of ionospheric variations, E-mail:

About Author:

MENG Di, postgraduate, majors in characteristics of ionospheric variations, E-mail:

Published: 2025-05-15 doi: 10.14075/j.jgg.2024.05.223
Outline
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This paper employs VTEC data from the Jason-1/2/3 satellite series to analyze the accuracy of global ionospheric maps (GIMs) from temporal and spatial perspectives, and establishes corresponding correction equations using solar activity components, diurnal variation components, and seasonal variation components. The results indicate: 1) The residuals(G-J) between CODE GIMs and Jason series satellite data exhibit a quadratic function relationship with F10.7, showing a 24-hour periodic characteristic in diurnal variation and a semi-annual variation pattern in seasonal changes. The correction equations can effectively amend the GIMs data. 2) The mean value of G-J reaches its maximum in the low-latitude regions of the Pacific and its minimum in southern Australia; the plasma transport within the equatorial anomaly leads to a bimodal feature in the median error of G-J; the relative error of G-J attains its maximum in the southern Atlantic Ocean, particularly in the marine areas off southern Africa.

total electron content  /  global ionosphere maps  /  altimeter satellite  /  Jason satellite series
孟迪, 王开心, 冯建迪, 张志豪. 基于Jason-1/2/3 VTEC的全球电离层地图精度评估及修正. 大地测量与地球动力学, 2025 , 45 (5) : 512 -517 . DOI: 10.14075/j.jgg.2024.05.223
Di MENG, Kaixin WANG, Jiandi FENG, Zhihao ZHANG. Precision Assessment and Correction of Global Ionospheric Maps Based on Jason-1/2/3 VTEC[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (5) : 512 -517 . DOI: 10.14075/j.jgg.2024.05.223
  • Open Fund of State Key Laboratory of Geo-Information Engineering(202318)
Year 2025 volume 45 Issue 5
28
11
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Article Info
doi: 10.14075/j.jgg.2024.05.223
  • Receive Date:2024-05-11
  • Online Date:2026-10-30
  • Published:2025-05-15
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History
  • Received:2024-05-11
Funding
Open Fund of State Key Laboratory of Geo-Information Engineering(202318)
Affiliations
    1 School of Civil Engineering and Geomatics, Shandong University of Technology, 266 West-Xincun Road, Zibo 255000, China
    2 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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