Abstract
Abstract Radars have been successfully used for remote measurements of raindrop size distribution and rain intensity for many years. Over the last two decades, sodars have been increasingly applied to measure the parameters of precipitation. In the present study, a novel method of acoustic sounding of normalized raindrop size distribution (NRSD) and rain intensity is described based on processing of raw spectra of acoustic signals measured in rainfall with a continuous-wave (CW) bistatic Doppler sodar. This method of sodar data interpretation is based on differential acoustic scattering cross sections of solid spherical particles calculated by exact formulas of the Mie scattering theory. It is used to reconstruct NRSDs and rain intensities from raw spectra of acoustic signal power measured in rainfall with two high-frequency CW bistatic sodars developed at the Khar'kov Institute of Radio Electronics (KIRE), in Ukraine, and at the University of Auckland, in New Zealand. NRSDs were reconstructed from indivi...
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