Storm time response of GPS-derived total electron content (TEC) during low solar active period at Indian low latitude station Varanasi (original) (raw)

2011, Astrophysics and Space Science

The present paper analyzes the dual frequency signals from GPS satellites recorded at Varanasi (Geographic latitude 25°, 16 N, longitude 82°, 59 E) near the equatorial ionization anomaly (EIA) crest in India, to study the effect of geomagnetic storm on the variation of TEC, during the low solar active period of May 2007 to April 2008. Three most intense-but still moderate class-storms having a rapid decrease of Dst-index observed during the GPS recorded data have been analyzed, which occurred on

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