Global Maps of TEC and Conditions of Radio Wave Propagation in the Mediterranean Area

摘要

On the example of the Mediterranean area it is showed that the joint use of global maps of the total electron content and data of ionospheric vertical sounding can be useful for: 1) the choice of maps, the most appropriate experimental values of the critical frequency foF2, 2) filling in missing data of foF2, 3) determination of foF2 in zone with a radius greater than the radius of spatial correlation of foF2. Such use allows to investigate and more accurately predict the conditions of the propagation of radio waves in the ionosphere.