Modelling the Spectral Index to Detect a Baltic-Type Crude Oil Emulsion Dispersed in the Southern Baltic Sea

Information was obtained on the possibility of detecting oil-in-water emulsions located under sea based modelling directional distribution radiance field above water surface. The optical model used applies to southern Baltic Sea, while oil emulsion is properties crude extracted in this region sea. analyses were carried out taking into account eight wavelengths range 412–676 nm, assuming different thicknesses layer contaminated with oil. most favourable combination two (555/412 nm) for determination an index related polluted area compared same oil-free (difference index) identified, value which indicative presence water. Changes difference depending viewing direction are shown almost entire upper hemisphere (zenith angles from 0° 80°). observation directions detection should be effective shown.