Abstract
We report on the results of studying the circumsolar plasma turbulence according to the coronal sounding experiments using spacecraft signals. Statistical characteristics of the temporal fluctuation spectra of the amplitude, phase, frequency, and Faraday rotation angle of the radio-wave polarization plane are described for the solar offset distances of the ray path in the range between 3 and 40 solar radii. Information on the turbulence spectra is given and the spectral index, as well as the outer and inner turbulence scales, as functions of the heliocentric distance are presented. The effect on the measured parameters of the plasma waves is discussed and typical values of the wave periods for different distances from the Sun are given.
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