MEASURED AND COMPUTED TOTAL ELECTRON CONTENT OVER GUWAHATI: OBSERVED THROUGH SATELLITE AND MODEL COMPUTATION.
- Department of Physics, Gauhati University, Guwahati 781014, Assam, India.
- Department of Computer Application, Mahapurusha Srimanta Sankaradeva Viswavidyalaya, Nagaon 782001, India.
- Society for Applied Microwave Electronics Engineering & Research (SAMEER) (DIT, MC&IT, Govt. of India),IIT Campus, Hill Side, Powai, Mumbai
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The ionospheric total electron content (TEC) collected from GPS data at Guwahati (geographic latitude 26.20N, geographic longitude 91.70E, geomagnetic latitude 15.20N), during high, medium and low solar activity periods is analysed to examine the influence of geomagnetic storm on the TEC near the equatorial anomaly crest region, and to assess the predictability of the existing ionospheric model such as the International Reference Ionosphere (IRI) on the TEC for different solar activity conditions. The paper shows that the TEC values derived from the IRI-2012 model vary widely with solar activity and can be used only for predicting daytime quiet day TEC with fair accuracy over Guwahati during low solar activity (LSA) and medium solar activity (MSA) period, but the model computation for geomagnetic stormtime TEC is far more complex.
[Bornali Chetia, Santanu Kalita, Minakshi Devi, Kamla Prsan Ray and Ananda Kumar Barbara. (2016); MEASURED AND COMPUTED TOTAL ELECTRON CONTENT OVER GUWAHATI: OBSERVED THROUGH SATELLITE AND MODEL COMPUTATION. Int. J. of Adv. Res. 4 (Sep). 1724-1735] (ISSN 2320-5407). www.journalijar.com
