The Formation of Large-Scale Plasma Disturbances Upon HF Ionosphere Heating: Dependence of the Disturbance Parameters on the Frequency and Power of HF Radiation

We study the dependence of the parameters of large-scale plasma inhomogeneities upon HF ionosphere heating on the frequency and power of HF radiation by using a modified SAMI2 model for numerical simulations. It is shown that the variation of the plasma density profile in the F region due to heating results in a strong dependence of plasma density disturbances on the frequency and power of HF radiation. We also analyze the effect of the Joule absorption in the lower ionosphere on the formation of large-scale inhomogeneities.