The Possibility of Experiments on Generating Artificial Ultra-Low-Frequency Radiation in the Ionosphere Using the FENICS Transmitter on the Kola Peninsula

A numerical model is developed for calculating the electromagnetic response in the ionosphere from ground-based ultra-low-frequency transmitters of finite length L. Such megatransmitters include the ZEVS transmitter with a carrier frequency of 82 Hz and the FENICS transmitter, which can generate artificial radiation at frequencies from fractions of 1 Hz to a several hundred Hz. The amplitude of radiation generated in the upper ionosphere by a grounded horizontal current suspended the high-resistive Earth’s surface is calculated. The altitude profile of the plasma parameters is reconstructed using the IRI model. The modeled amplitudes of the electromagnetic response in the nighttime ionosphere can reach 60 μV m−1 for the ZEVS transmitter (L = 60 km) powered by a current of 200 A, which is confirmed by observations on the DEMETER satellite. Calculations show that the FENICS transmitter (L = 100 km) powered by a current of 100 A can generate radiation with frequencies of 10–100 Hz and amplitudes of up to 60–70 μV m−1 in the upper nighttime ionosphere. The FENICS transmitter can be used to generate artificial Pc1 pulsations that can be detected on low-orbit satellites (e.g., CSES). Oscillations in the nighttime ionosphere at a frequency of 0.5 Hz with amplitudes >1 pT and >10 μV m−1 of the magnetic and electrical components, respectively, are generated in the FENICS transmitter by a current of >140 A.