ABSTRACT
Total Electron Content (TEC) and Scintillation Index changes were measured over the Indian base Base Stations, Himadri, Ny-Alesund at Arctic (78.9°N Lat. and 11.9°E Long.) and Maitri, Antarctica (70.650°N Lat.,11.450°E Long. Antarctic studies observed monthly seasonal variations in the TEC through comparative analysis in January, December and June. In January and December, sunlight is present (polar days), whereas in June, no sunlight (polar night) is present. In the winter seasons, TEC variations were lowest because of ionisation processes. During the Equinox period, TEC disparity is low as compared to the vernal equinox period. TEC and L-band scintillation-based research is also carried out. Results reveal that the high-latitude L-band scintillations are observed only during night-time, but low in high solar activity conditions. During the Arctic region study, the maximum TEC variation was observed in October compared to November and full amplitude scintillation activities observed in November.
