Analysis on the object-background contrastby numerical radiative transfer computation

In this paper, a software-package, DISORT (discrete ordinate method), is used to compute the object-background contrast at 0.55μm wavelength under the standard atmosphere. It is also analyzed that object-background contrast is affected by many factors, including the horizontal visibility, altitude, the visual zenith angle, and solar zenith angle, azimuthal angles difference between the observer and the sun, and the aerosol single scattering albedo. As the result, the contrast increases with the increase of the observer zenith angle, with the decrease of the solar zenith angle, with the increase of the azimuthal angles difference, with the decrease of the altitude, and with the decrease of the single scattering albedo.