Radiative property investigation of multi-layer seawater absorbing host media with the consideration of non-uniform particle size distribution and dependent scattering

Dispersed particulate media have a wide range of applications in seawater-related fields, such as marine environmental detection, submarine stealth, and maritime radio communication. However, the neglect of absorption property for the host media, the variations in particle size distribution, and the microscopic electromagnetic effects between particles often lead to errors in the calculation of radiative properties. For the host media, most studies on the radiative properties of particulate media in seawater assume a constant absorption index, which neglects its variability or even the seawater absorption property itself. For the particles, many studies on the radiative properties of seawater assume a uniform particle size. Additionally, independent scattering assumption is often used, and the interactions between particles are ignored. To calculate the radiative properties of dispersed particulate media accurately, the idea of combining the complex variations of absorbing host media, the non-uniform particle size distribution and the dependent scattering effect is proposed. The method can decrease maximum relative error between experimental and calculated data from 72.36% to 9.16%.