Abstract We have analyzed the total electron content (TEC) derived from dual-frequency GPS receivers (GPS TEC) at the Warsaw station, Poland, during the period 2010–2012. This TEC has been compared with the value predicted by IRI model. Analysis has been done according to the solar activity (represented by the F10.7 parameter), time of day, season and magnetic activity. The results of our study show that the TEC derived from the IRI-2012 model agrees with the GPS TEC data mostly in the morning hours, but that it generally underestimates the GPS TEC. The maximum differences are about 10 TECU during the daytime and 2 TECU during the nighttime. The underestimation is more evident at daytime than at nighttime. In order to obtain a more quantitative estimate of the difference between IRI and GPS observations, we calculated seasonal means of the relative deviations. The highest TEC overestimation is observed in December during low and high solar flux’s values of about 35–45%.
Comparison of TEC value from GNSS permanent station and IRI model
Advances in Space Research ; 55 , 8 ; 1976-1980
2014-11-26
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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