Global Ionospheric Model Accuracy Analysis Using Shipborne Kinematic GPS Data in the Arctic Circle

The global ionospheric model built by the International Global Navigation Satellite System (GNSS) Service (IGS) using GNSS reference stations all over the world is currently the most widely used ionospheric product on a global scale. Therefore, analysis and evaluation of this ionospheric product’s a...

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Bibliographic Details
Published in:Remote Sensing
Main Authors: Di Wang, Xiaowen Luo, Jinling Wang, Jinyao Gao, Tao Zhang, Ziyin Wu, Chunguo Yang, Zhaocai Wu
Format: Text
Language:English
Published: Multidisciplinary Digital Publishing Institute 2019
Subjects:
shipborne GPS
global ionospheric modeling products
accuracy analysis
Arctic Circle
Arctic
Online Access:https://doi.org/10.3390/rs11172062
Description
Summary:The global ionospheric model built by the International Global Navigation Satellite System (GNSS) Service (IGS) using GNSS reference stations all over the world is currently the most widely used ionospheric product on a global scale. Therefore, analysis and evaluation of this ionospheric product’s accuracy and reliability are essential for the practical use of the product. In contrast to the traditional way of assessing global ionospheric models with ground-based static measurements, our study used shipborne kinematic global positioning system (GPS) measurements collected over 18 days to perform a preliminary analysis and evaluation of the accuracy of the global ionospheric models; our study took place in the Arctic Circle. The data from the International GNSS Service stations near the Arctic Circle were used to verify the ionospheric total electron contents derived from the kinematic data. The results suggested that the global ionospheric model had an approximate regional accuracy of 12 total electron content units (TECu) within the Arctic Circle and deviated from the actual ionospheric total electron content value by about 4 TECu.

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