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Dhanunjai,
- Influence of Major Geomagnetic Storms Occurred in the Year 2011 On TEC Over Bangalore Station In India
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Authors
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1 Bapatla Engineering college, Bapatla-522 101, A.P, IN
1 Bapatla Engineering college, Bapatla-522 101, A.P, IN
Source
International Journal of Electronics and Communication Engineering, Vol 6, No 1 (2013), Pagination: 105-110Abstract
To improve the positional accuracy of Global Positioning System (GPS) and for wide coverage, a satellite Based Augmentation System (SBAS) is being developed in India popularly known as GAGAN. The positional accuracy of GPS is predominantly affected by the ionospheric time delay, which is a function of Total Electron content (TEC). The ionosphere above the Indian subcontinent, which is located near the equatorial region, is highly volatile with large horizontal gradients. Further, major magnetic storms originated from solar bursts can cause strong disturbances in the geo space environment which ultimately affects the performance of Global Navigation Satellite Systems (GNSS). The TEC values at a low latitude station Bangalore (77.510E, 13.030N) India for three major geomagnetic storm events occurred in the year 2011 were presented in this paper and compared with the TEC values obtained from International Reference Ionosphere (IRI) 2007 empirical model. Strong TEC enhancements were observed during the storm days. The results presented in this paper are useful in developing the region specific ionospheric prediction models.Keywords
GNSS, GPS, GAGAN, IRI, Geomagnetic Storm, TEC
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