Double-scattering calculations and laboratory dye-laser multiple scattering measurements

The multiple-scattering effects on laser pulses transmitted through and scattered by clouds and aerosol layers were calculated and discussed by several authors. Special attention has been given to the case of double-scattering and its effect on lidar returns. Contrary to the body of literature on the theory of multiple scattering, very few experimental works were conducted under controlled and well-defined conditions. This is especially true for the scattering properties at a given scattering angle as a function of the wavelength. In this work, scattering calculations developed by the group and theoretical laboratory measurements of the multiple scattering as a function of wavelength for two values of optical depth are presented.