Author(s)

Wasiu Akande Ahmed^1,2*, Ganiyu Ishola Agbaje², Sikiru Yommy Aiyeola³, Bola O. Balogun², Ngbede Joshua Ada Echoda², Yakubu Abdullahi Onimago², Taiwo Olunuga²

¹School of Instrumentation Science and Opto-Electronics Engineering, Beihang University of Aeronautics and Astronautics, Beijing, China.
²African Regional Centre for Space Science and Technology Education-English, OAU Campus, Ile-Ife, Nigeria.
³School of Electronics and Information Engineering, Beihang University, Beijing, China.

This paper investigates the total electron content (TEC) which is a major challenge to space and related industries, most especially in an equatorial region like Thailand within the geographical latitude 07°35'N - 20°17'N. This research was achieved using radio occultation data from COSMIC mission. The monthly, seasonal and annual TEC and electron density variation monitoring conducted during increasing solar activity from 2010 to 2013 due to changes and instability of ionospheric parameters. It was observed that electron density and TEC was predominant in summer season. Summer has the highest electron density and TEC values all through and the annual mean values keep on increasing within the period under consideration. In conclusion, ionospheric fluctuations and perturbations were observed to be at pick between the months of March and May. The results of the study demonstrated that ionospheric irregularities were steadily on the increase, confirming 24th solar cycle prediction by NASA and depended on many factors among the major ones which are located on the latitude, season and solar activity.

TEC, Ionosphere, GPS, Low Earth Orbit, Radio Occultation, Equatorial Zone

Ahmed, W. , Agbaje, G. , Aiyeola, S. , Balogun, B. , Echoda, N. , Onimago, Y. and Olunuga, T. (2016) Determination of Total Electron Content at Equatorial Region—Thailand Using Radio Occultation Technique. Atmospheric and Climate Sciences, 6, 319-328. doi: 10.4236/acs.2016.62027.