We continue to develop combined microwave models of dispersed foam-spray media for ocean remote sensing. In this paper, more attention is focused on the structure hierarchy of dispersed systems and their electromagnetic nonuniformity. The basic variable parameter is the vertical profile of the effective complex dielectric constant that is associated with two-phase stratification of thick foam layers. Wet foam is modeled by monoand polydispersed systems of bubbles (i.e., two-layer spherical particles with water shells); dry foam is represented by a statistical two-phase mixture, containing thin water films and air. Spray, located above the foam, is modeled by a cloud of spherical water droplets. The impact of different microstructure parameters and effective profiles on the emissivity is analyzed numerically using an iterative multi-layer computer simulation technique. Examples of our modeling are presented in the paper.
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