Proceedings PaperEmpirical Determinations Of The Local And Global Optical Properties Of Irradiance Fields In The Sea
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It is shown how the exact two-flow model for upward and downward irradiance fields in the sea can yield numerical determinations of the coefficients of the model. These coefficients are interpretable as the local optical properties of the sea. Knowledge of the upward and downward irradiances at any two distinct depths in the sea will generally allow such a determination of the average local optical properties of the sea between the the chosen depths. From such determinations we can in principle find the four global optical pro-perties of each layer of the sea, namely the transmittance and reflectance factors for the upward and downward irradiances, associated with each layer of the sea. Finally, knowledge of both local and global properties, together with measured upward and downward irradiances at each depth, allow the detection and deter-mination of internal sources of radiant energy in the sea (e.g. fluorescent phenomena). The procedures for irradiance just described can be elevated without essential change to the radiance level.