Numerical simulation of the impact of the middle atmosphere parameters on the lower ionosphere and VLF/LF radiowaves propagation using MLS EOS AURA data

EOS Aura Microwave Limb Sounder data on the middle atmosphere parameters have been used for the numerical simulation of the lower ionosphere. Real data on the temperature, geopotential height, water and ozone content were processed using the Fast Fourier Synoptic Mapping technique, providing the two-dimensional field along the radiopaths from European VLF/LF transmitters to the geophysical observatory "Mikhnevo" (55N,37E). These parameters have been used in the numerical simulation of the electron density distribution. The control run was evaluated using MSIS and AFGL empirical models. The resulted ionospheres have been used in the simulation of VLF/LF radiowaves propagation using LWPC code.