Hourly digital ionograms were taken at two Western European locations: Dourbes, Belgium (50.10 N, 4.60 E) and, Roquetas, Tarragona, Spain (40.80 N, 0.30 E) during Winter through Summer of 1988. Ionospheric parameters were tabulated and compared at the two stations, which were separated by 01000 km, using correlative techniques.
The temporal and spatial variations in ionospheric structure have frustrated the efforts of communications and radar system operators who base their frequency management decisions on monthly mean predictions or computer based models. The University of Lowell Center for Atmospheric Research, in cooperation with the U.S. Army Communications-Electronics Command, has now produced a low power miniature version of its Digisonde sounders capable of making real-time on-site measurements to support communications or ...
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