Abstract

Refractive index fluctuations or turbulence in the mesosphere, stratosphere and troposphere are observed with the aid of the fast beam steerability of the MU (middle and upper atmosphere) radar which operates at 46.5 MHz with 1 MW peak radiation power and 8330 m 2 antenna aperture. Morphology of the mesospheric and stratospheric turbulence is studied by making use of the high altitude and time resolutions. Sixteen beam observations based on the fast beam steerability reveal advection properties and spatial variability of echoing regions in the troposphere. These results demonstrate new possibilities for this system in the investigation of three dimensional structures of turbulence.

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