The aim of this paper is to develop a theoretical model for description of ultrasound scattering from irregularly shaped individual particles. Investigations of sediment transport by use of ultrasound scattering technique demand a fundamental understanding of scattering by individual, irregularly shaped particles. Regularly shaped particles are frequently spheres, while irregularly shaped particles can be symmetrically particles with surface roughness or with angular facets and edges. A cube

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... a rough sphere have been used in the studies behind this paper. Laboratory experiments have been used for verification of theoretical and numerical results.