Chinese Journal of Polar Research

ADVANCES IN POLAR SCIENCE

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GPS-based regional ionospheric models and their suitability in Antarctica

AN Jiachun1*, WANG Zemin1 & NING Xinguo1,2   

  1. 1 Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China;
    2 Changchun Institute of Surveying and Mapping, Changchun 130021, China
  • Online:1964-03-30 Published:1964-03-30

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Abstract: There are a number of ionospheric models available for research and application, such as the polynomial model, generalized trigonometric series function model, low degree spherical harmonic function model, adjusted spherical harmonic function model, and spherical cap harmonic function analysis. Using observations from more than 40 continuously operating stations across Antarctica in 2010, five models are compared with regard to their precision and applicability to polar regions. The results show that all the models perform well in Antarctica with 0.1 TECU of residual mean value and 2 TECU of root mean
square error.

Key words: GPS, ionospheric TEC, regional model, Antarctica