Recent Advances in Numerical Simulation of Propagation of EM Waves in the Earth's Ionosphere

摘要: EM wave propagation in the magnetoactive terrestrial ionosphere was investigated by numerical methods, and associated software developed. Two principal functions were realized: ray tracing ionogram synthesis. For first time, reference-standard models, including International Reference Ionosphere (IRI) 2012, World Magnetic Model 2010, Geodetic System 1984, have been globally implemented for every component of medium, fully manipulatable 3-D visualization enabled a study utilizing bicharacteristic method. An assimilation model also used along with IRI. The focus on unveiling multiskip long-range effects. Effective algorithms solving system that allow rapid insight into an extremely large-scale problem enable quasi-real-time operation discussed. simulation presence abnormal locally increased or decreased electron density natural artificial occurrence considered. Experimental ionograms obtained ionosonde compared to numerically synthesized ones.