An empirical relation of daytime equatorial total electron content with equatorial electrojet in the Indian zone |
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| Authors: | Rajat Acharya Bijoy Roy MR Sivaraman Ashish Dasgupta |
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| Institution: | 1. Space Applications Centre, ISRO, Building no. 24, Room no. 20, Ambawadi Vistaar P.O., Ahmedabad, Gujarat, 380 015, India;2. Institute of Radio Physics and Electronics, 92, A P C Roy Road, Calcutta, West Bengal, 700 009, India;1. NASI Sr. Scientist, Physical Research Laboratory, Ahmedabad 380009, India;2. NASI RA, Physical Research Laboratory, Ahmedabad 380009, India;3. Indian Institute of Geomagnetism, Navi Mumbai 410218, India;4. On deputation from Airports Authority of India, Space Application Centre, Ahmedabad 380015, India;5. Space Physics Laboratory, VSSC, Trivandrum 695022, India;1. Mbarara University of Science and Technology, Mbarara, Uganda;2. South African National Space Agency (SANSA) Space Science, 7200 Hermanus, South Africa;3. Department of Physics and Electronics, Rhodes University, 6140 Grahamstown, South Africa;1. Space Applications Centre, ISRO, Ambawadi Vistaar, Ahmedabad 380015, Gujarat, India;2. Indian Navy, Integrated HQ of Ministry of Defence (Navy), New Delhi 110011, India;1. Physical Research Laboratory, Ahmedabad 380009, India;2. Indian Institute of Geomagnetism, Navi Mumbai 410218, India;1. S.K. Mitra Center for Research in Space Environment, University of Calcutta, 92, A.P.C. Road, Calcutta 700009, India;2. Institute of Radio Physics and Electronics, University of Calcutta, 92, A.P.C. Road, Calcutta 700009, India |
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| Abstract: | The variability of Total Electron Content (TEC) at Trivandrum, located within equatorial anomaly region at the dip equator, with respect to a reference level derived from the TEC measurements at Shimla, located outside the region has been studied during low solar activity period. Chapman function is assumed to hold good for regions outside the anomaly extent. It shows that the difference of total measured TEC at the equator from the derived reference is highly correlated with equatorial electrojet. The observations conform to the previous investigations and are interpreted in light of established relations. A stochastic relationship with electrojet is derived and validated. |
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