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Solar Activity Effects on the Variabilities of Long-Term Ionospheric TEC
Abstract:
To reveal the modulating effects of the solar activity on ionospheric TEC, the long-term characteristics of TEC were analyzed. The analysis was based on the data of the sunspot and data of GPS observation provided by IGS analysis centers from 1999 to 2011. The results showed that the variation of monthly mean TEC was of significant regularity. The regularity was caused mainly modulation action of solar activity. In view of the spatial variation of TEC, the monthly mean TEC can be well described for modeling and prediction on base of relationship between TEC and latitude.
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1331-1334
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December 2013
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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