AbstractThe temporal and seasonal variations of Total Electron Content (TEC) are studied at Agra (Geographic Lat. 27.17°N, Long. 78.89°E, Dip: 41.4°), India, which is in the equatorial anomaly region, for a period of 12 months from 01 January to 31 December, 2007 using a Global Positioning System (GPS) receiver. The mean TEC values show a minimum at 0500h LT (LT=UT+5.5h) and a peak value at about 1400h LT. The lowest TEC values are observed in winter whereas largest values are observed in equinox and summer. Anomalous variations are found during the period of magnetic disturbances. These results are compared with the TEC derived from IRI-2007 using three different options of topside electron density, NeQuick, IRI01-corr, and IRI-2001. A good agreement is found between the TEC obtained at Agra and those derived from IRI models.
A morphological study of GPS-TEC data at Agra and their comparison with the IRI model
Advances in Space Research ; 46 , 3 ; 280-290
2010-03-15
11 pages
Article (Journal)
Electronic Resource
English
GPS , TEC , Ionospheric morphology , IRI
A morphological study of GPS-TEC data at Agra and their comparison with the IRI model
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