De. Freund et al., NUMERICAL COMPUTATIONS OF ROUGH SEA-SURFACE EMISSIVITY USING THE INTERACTION PROBABILITY DENSITY, Journal of the Optical Society of America. A, Optics, image science,and vision., 14(8), 1997, pp. 1836-1849
The Cox-Munk-Plass interaction probability density is used for computi
ng emissivity from a two-dimensional anisotropic model of a rough sea
surface. The infrared wavelengths of interest are the 3-5-mu m and 8-1
4-mu m bands, and computations are performed in the co-wind and crossw
ind directions for receiver polar angles varying from the zenith to th
e horizon. Comparisons between co-wind and crosswind results are made
as a function of windspeed, wavelength, and the polar angle of the rec
eiver, with an emphasis on results at the horizon. A method for obtain
ing upper and lower bounds on the surface emissivity is also given whi
ch, in the context of reflection, provides a measure of the effects of
multiple reflections. (C) 1997 Optical Society of America.