Abstract

This paper extends the theoretical analysis of an atmospheric polar nephelometer by Pritchard and Elliott1 and applies it to the problem of measuring the volume scattering function of ocean water. Procedures for obtaining the necessary absolute calibrations are also treated theoretically. The analysis yields an equation for the volume scattering function, σ(θ), for each angle θ which requires for its solution a detailed knowledge of the optical properties of a diffusing plastic calibration plate, a somewhat tedious calibration procedure to allow for dependence on the sample volume and on the irradiance input to this volume, and a knowledge of the transmittances of the water used for calibration and the water being measured. The analysis is the foundation for an in situ scattering meter which is currently under construction. No data are given.

© 1963 Optical Society of America

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