Atmospheric Radiation Transmission And Application

The paper reviewed the process of radiative transfer in atmosphere. The RTE(Radiative Transfer Equation), which derived from the theory of particles transport, was solved by DISORT(Discreet Ordinate Radiative Transfer). The influence of molecular in atmosphere, aerosol and earth surface on radiation was detailedly discussed based on DISORT. The basic conception of heat transfers in atmosphere, basic knowledge of atmosphere, theory of radiation scattering and absorption by molecular and aerosol and theory of interaction between radiation and atmosphere were briefly introduced in this paper. Then we discussed the process of deducing the RTE from theory of particles transport and the approximation methods were used to solve RTE. The exact solution of radiative transfer in multi-layers was fully discussed, especially for DISORT. The data resources and the methods for calculating important parameters in RTE, including optical thickness, phase function and single-scattering albedo, were completely discussed. We calculated the radiative intensity at given climate condition, location and orientation for project of The Radiative Properties of Sky Background, which sponsored by NSFC (National Nature Science Foundation of China) and CAEP (China Academy of Engineering Physics). We also summarize our work and develop a software for analyzing the radiative intensity of sky background. The software is accurate and easily used. The software can accurately calculate radiative intensity at given climate condition, determined by visual distance, relative humidity and wind speed, given clouds, determined by clouds type, height and width, given time, determined by minutes, hours, days, months and years, given location, determined by longitude and latitude, and given orientation, determined by solar zenith and azimuth.