Data analysis software for SAMEER-DU Ionospheric Radar

摘要

For real time and near real time forecasting of ionospheric events, accurate and automatic scaling of ionograms recorded by digital ionosonde becomes very crucial. The details of the data analysis software including the autoscaling module developed for the new SAMEER-Dibrugarh University Ionospheric Radar and the preliminary results of performance analysis are reported in this work. The MATLAB based software and the Graphical User Interface provides the tools for visualization and analysis of the ionospheric data in a easy to use manner. Currently auto-scaling of F layer parameters like foF2, h/F2,hmF2, foF1, MUF as well as foEs, foE etc are possible. In addition, batch mode operation to auto-scale large data sets and real height analysis by ionograms profile inversion using POLAN is also possible. The auto-scaling module is primarily based on identifying the ionospheric layer traces from the regular (interference) and spurious noise signal in the data plan by using the idea of inter-connectedness of trace signals. The performance of the auto-scaling module is evaluated by comparison with manual scaled values and doing a statistical analysis of data spanning different season and geophysical conditions. The performance of module is found to be encouraging in case of few parameters like foF2.