Ionospheric morphology, radiowave propagation and real-time channel evaluation

Despite the fact that the ionosphere has been studied now for more than 50 years, new phenomena, particularly those concerned with man-made ionospheric modification, continue to be discovered. It is important that the characteristics of these phenomena shall be fully investigated so that their consequences to modern operational radio systems can be quantified. CCIR Study Group 6 texts provide a very comprehensive, unique and up-to-date review of ionospheric and propagation phenomena and serve as useful source material to newcomers to the field and those with only indirect interest regarding why the medium affects their radio systems. The reference propagation models are of considerable importance to commercial and governmental planners alike. CCIR studies should continue to keep review information current and to refine the models as knowledge progresses