Development of computerized ionospheric tomography technique and its application to study the Equatorial Ionization Anomaly over the Indian region

The paper explores the development and validation of latest ionospheric monitoring technique known as computer added ionospheric tomography (CAIT) for its application in understanding the dynamics of ionosphere. The Total Electron Content (TEC) is derived from the differential Doppler method by receiving the two coherent radio signals from beacon receivers aligned in the same meridian. The estimated TEC is then further used to generate the 2-dimensional (2D) tomographic image with the help of the conventional Algebraic Reconstruction Technique (ART). The results show that the technique can be successfully utilized to study the 2D structure of electron density and Equatorial Ionization Anomaly (EIA) which is one of the most crucial phenomenons of equatorial and low-latitude region.