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Abstrait
Solar Wind High Speed Stream as a Proxy for the Variation of Ionosphere over Ethiopia
Yamrot Binyam
Equatorial ionospheric irregularity is a nuisance for technologies that depend on trans-ionospheric propagating radio waves. Significant efforts are being carried out to understand the EEJ irregularity. However, the African equatorial ionosphere that shows unique phenomena as observed by Low Earth Orbiting (LEO) satellite is the least investigated due to the lack of ionospheric monitoring instruments. To study the ionospheric variations and solar wind speed at high stream over Ethiopia, GPS data from a year of 2010 to 2014 for all days at Bahir Dar (110 N, 380 E) stations using a dual frequency f1(1575:42 MHz) and f2 (1227:60 MHz). The TEC data were downloaded from UNAVCO. By employing dual-frequency GPS observations, it is possible to calculate the estimates about GPS derived ionospheric TEC.