Results of investigation carried out on 'mechanical' and 'acoustical' emulsions of Baltic crude oil in artificial Baltic seawater are presented.It was demonstrated that the 'acoustical' emulsions are equivalent to the steady-state of 'mechanical' emulsions obtained at frequencies similar to those of waves induced by wind. It is shown that measurements of transmissivity in the visible region can be applied in the determination of dimensions of oil microdroplets
The dependence of the refractive index of artificial and natural Baltic seawater on temperature, n=,(T), has been investigated.The measurements have been carried out at different wavelengths of visible radiation.A second dependence of the refractive index on temperature has been observed. The changes of refractive index with depth, n=n(z), have been investigated in field measurements in the Baltic Sea. The influence of crude oil emulsion on the refractive index is discussed.
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