Electrodynamic processes in the electrically active mesosphere

The MF radar developed for remotely probing the near-Earth space environment and the technique for diagnosing plasma parameters in the electrically active mesosphere have enabled the determination of the basic electrodynamic characteristics of this region, which are required for achieving the fundamental physical understanding and can be used in practical applications (Sun-Earth connections, modeling the ionosphere as well as natural and anthropogenic global disturbances, near-Earth environment monitoring, earthquake predictions, and radio propagation forecasting). In particular, the average daily electric fields intrinsic to the mesosphere have been determined for the first time.