METHOD FOR DETERMINING SPEED OF PLASMA TURBULENT MOVEMENT IN MESOSPHERE AND BOTTOM THERMOSPHERE Russian patent published in 2017 - IPC G01S13/95 

FIELD: physics.

SUBSTANCE: method of determining the speed of the turbulent motion of the plasma at altitudes of the mesosphere and lower thermosphere includes the formation of artificial periodic inhomogeneities of the ionospheric plasma by affecting the ionosphere perturbation with radiation at a frequency above the critical frequency for the E-layer and below the critical frequency for the F-layer, the emission in the ionosphere pulse at the end of the disturbance at the same frequency and the same polarization, the reception of the signal backscattered by artificial periodic inhomogeneities of the ionospheric plasma, the measurement of the amplitude and relaxation time of the backscattered signal, the determination of the altitude dependence of the relaxation time of the signal backscattered by periodic inhomogeneities in the investigated altitudes h generated by perturbing radiation. According to the reduction of the backscattered signal amplitude at each altitude, the relaxation time of inhomogeneities τ(h) is determined, which in the absence of turbulent motions due to ambipolar diffusion τ_d(h) and the time difference τ(h) and τ_d(h) the speed of the turbulent motion of the plasma is determined.

EFFECT: improving the altitude-time resolution and improving the accuracy of determining the speed of the turbulent plasma motion.

2 dwg