Polarized infrared reflectivity of one-dimensional Gaussian sea surfaces with surface reflections

Abstract

Sea surface infrared reflectivity is an important parameter in maritime remote sensing. Usually, single reflection by the sea surface is considered. However, a loss of energy is then reported for large zenith observation angles ($\theta >50°$) with a peak of about 4% for $\theta \approx 80°$, because of the neglect of the multiple surface reflections. This paper presents calculations for the polarized infrared reflectivity of one-dimensional sea surfaces (2D problems) with two surface reflections, by introducing a bistatic illumination function with two reflections. The results show good agreement with the ones obtained by a Monte Carlo ray-tracing method. It is also shown that the energy conservation criterion is better satisfied after considering two surface reflections.

© 2013 Optical Society of America

Polarized infrared emissivity of one-dimensional Gaussian sea surfaces with surface reflections

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