Polarization In The Atmosphere Based On Monte-Carlo Theory

The sky is polarized due to sunlight's scattering by particles and air molecules in the atmosphere. The sky polarization patterns which consists of different polarized skylight indicates the most conspicuous polarization information and directional information, which is mainly determined by the atmosphere particles, the location of the Sun and the weather conditions. In this paper, we have completed research on the theoretical celestial polarization patterns to model it based on the Monte-Carlo theory ,as well as make comparison between measured results and theoretical models, providing theoretical basic to related applied research.This dissertation includes the following contents:(1) Analysis on the essence of light and the mathematical principle of the light polarization; It summarized the physical characters of the atmosphere; Further more , it also analyzed the basic principle and the feature of Rayleigh scattering and Mie scattering.(2) Simulation on the celestial skylight polarization patterns with the real-time atmosphere parameters according to the Rayleigh and Monte Carlo modeling of light transport theories and compared it with single Rayleigh scattering modeling.(3) Detection of the skylight polarization with an imaging polarimeter, comparing with the theoretical models.