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9 December 2015 Analysis of global ionospheric TEC temporal-spatial characteristics
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Proceedings Volume 9808, International Conference on Intelligent Earth Observing and Applications 2015; 98082Z (2015) https://doi.org/10.1117/12.2207846
Event: International Conference on Intelligent Earth Observing and Applications, 2015, Guilin, China
Abstract
The formation of the ionosphere is mainly the interaction of solar radiation and the earth's atmosphere, in different temporal-spatial environment, the characteristics of the ionosphere is more complex, and the Total Electron Content (TEC) is one of the important parameters of the ionospheric morphology and structure. Therefore, in this paper, using the high-precision TEC time series provided by the International GNSS Service (IGS) as experimental data, by Fast Fourier Transform (FFT) to detect its periodic changes, and then focus on analysis the characteristics of diurnal variation, seasonal variation and annual variation and winter anomaly, simultaneous analysis of the ionospheric characteristics vary with latitude and longitude. The result show that: (1) TEC changes more intense during the day, but the night is quiet, and in different latitudes, the TEC reached peak value at different moment; (2) Winter anomaly exists only during the day, night does not exist; (3) In the same time domain, TEC value decreases gradually with the increase of latitude, and it has different spatial variation features in different hemispheres.
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Maofang Jiang, Liangke Huang, Pituan Wu, Chenghui Cai, and Lilong Liu "Analysis of global ionospheric TEC temporal-spatial characteristics", Proc. SPIE 9808, International Conference on Intelligent Earth Observing and Applications 2015, 98082Z (9 December 2015); https://doi.org/10.1117/12.2207846
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