Electromagnetic emissions by ZEVS transmitter and the “Northern transit” power transmission line registered on CSES satellite

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Аннотация

82 Hz radiation from ZEVS transmitter and 50 Hz emission from the “Northern transit” power transmission line was registered by the low-orbit satellite CSES (altitude ~500 km) while flying over the Kola Peninsula. ZEVS signal was detected at distances from 300 to 2300 km, as measured between the subsatellite point and the transmitter. Amplitude of electric component |E| at frequency of 82 Hz was found to be about 2.5 μV/m at 800 km from the transmitter. The corresponding amplitude of magnetic component |B| was found to be about 1.3 pT. The spatial structure of amplitudes of 50 Hz radiation dramatically rearranged during the satellite’s transition from one power line to another. Amplitude of electric and magnetic component of 50 Hz radiation registered above the Northern Transit power line, was estimated as follows: |E| ≈ 0.5–2.0 μV/m and |B| ≈ 0.5–1.5 pT. Measurements at small distances from the source (several hundred km) qualitatively agree with the results of the simulated spatial structure of wave field in the upper ionosphere, excited by a horizontal current of a finite length. However, at large distances, the amplitude of the 82 Hz radiation decreased more slowly with distance from the ZEVS transmitter compared to model calculations, based on assumption of vertical geomagnetic field.

Авторлар туралы

N. Savelyeva

Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences

Email: nasa2000@yandex.ru
Moscow, Russia

V. Pilipenko

Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences; Space Research Institute of the Russian Academy of Sciences

Moscow, Russia; Moscow, Russia

N. Mazur

Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences

Moscow, Russia

E. Fedorov

Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences

Moscow, Russia

S. Zhao

State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences

Beijing, China

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