Satellite Observations of Effects of Auroral Ionosphere Heating with the EISCAT Facility

V. Е. Davydov, M. D. Zinkina, Yu. V. Pisanko, A. V. Tertyshnikov, and R. Yu. Yurik

The measurements are presented of the dynamics of energetic electrons on the Meteor-M No. 2 orbit during the experiment on the ionosphere heating by strong shortwave radiation with the EISCAT heating facility (Tromso, Norway) on October 12, 2018. It is revealed that the counting rate of electrons with energy >40 keV increased by five times in 30 s after the moment of the facility switch-off, and sharp (by 3–4 times) short counting rate peaks were registered as compared to the background. The peaks were repeated approximately every 6 seconds. The results of observations of variations in total electron content of the high-latitude ionosphere reconstructed from ionospheric delays of GLONASS R21 satellite signals during the same heating experiment are also presented. The analysis of these data revealed small exceeding of TEC values over the trend at the boundary of the heating area.

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