The presence of breaking wave can significantly change the radiative properties of seawater and these changes will affect laser radar sensing and ocean target detection. In this work, impulse broadening effect of the breaking wave in the upper ocean are investigated using the Monte Carlo method. The breaking wave is divided into two structures according to the lifetime of evolution. The sea spray generation function and the bubble population model, which considers the effect of wind speed and depth on the spilling aerosols and foam bubble size distribution are used. The scattering coefficients and the scattering phase functions of bubbles in seawater are calculated using Mie theory, a Monte Carlo method is used to solve the radiative transfer equation.
Maritime environment own numerous models of the aerosols which are typically comprised of dust, water-soluble aerosol and sea salt aerosol. A Maritime environment aerosol model is developed in the simulation for laser beam from visible to near infrared. Mie theory is used to calculate optical parameters, such as scattering coefficient, Aledo and average asymmetry factor, for different models of aerosols of variable size with gamma distribution. The simulation results show that dust aerosol and water-soluble aerosol have the largest absorption coefficient. Aged Sea-salt aerosol and near-surface Sea-salt aerosol have the largest scattering coefficient. The model solving the optical properties of marine aerosol problem is capable of handling light detection and ranging.
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