ELECTROMAGNETIC FIELDS INDUCED BY ZEVS TRANSMITTER AND “SEVERNYY TRANSIT” POWER LINE IN THE UPPER IONOSPHERE DETECTED BY CSES SATTELITE

One of the impacts of human activity on the near-Earth environment that will be discussed in this review is the propagation of electromagnetic radiation emitted by power lines and microwave transmitters through the ionosphere into the near-Earth space. The first Chinese seismo-elecromagnetic satellite (CSES) orbiting at 528 kilometers, recorded radiation emitted by ZEVS transmitter operating at frequency of 82 Hz and by the Northern Transit industrial power line operating at 50 Hz over the Kola Peninsula. ZEVS signal was detected at distance from 600 to 2500 kilometers from the source. Electrical and magnetic sensors of CSES detected narrowband radiation with maxima at frequency of 82 Hz and 50 . Results of measurements agree with results of numerical simulation of spatial structure of electromagnetic field in the upper ionosphere, excited by an alternating horizontal current of finite length. An amazing feature of the reported event was slow decrease in the amplitude of 82 Hz radiation with distance from the ZEVS transmitter compared with model calculations within 600 to 1000 km range. These results can be used to assess the effectiveness of active experiments aimed at generating artificial disturbances in the near-Earth environment.