الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In this work we studied the interaction of the incident solar radiation with different atmospheric aerosol media. The studied media are Continental (clean, average, polluted), Urban, Desert, Maritime (clean, polluted, tropical), Arctic and Antarctic.
The scattering of the incident radiation inside these media depends on the size parameter x = 2πr/λ of the particles in the media, where r is the radius of the spherical particles and λ is the wavelength of the incident solar radiation. For x ranged from 0.1 to 50, the scattering will be Mie scattering and for ranged from 10-3 to 0.1 the scattering will be Rayleigh scattering.
The parameters characterizing the studied media, as average single scattering albedo, asymmetry factor and anisotropic coefficient are calculated using the Mie theory. With these optical properties characterized the studied media, we estimated their radiation properties, as the backward and forward partial fluxes.
The calculations are done using the radiation transfer equation with generalized boundary conditions. Since the solution of radiative transfer problem in this form is so complicated, we link its solution with the solution of the corresponding source-free problem with simple boundary conditions.
The scattering inside the considered media has been taken as isotropic, anisotropic, and Rayleigh. The problems studies in the thesis are solving using three different techniques, Variational Pomraning-Eddington approximation, Weight function and Galerkin technique for the sake of comparison.
Due to the reality of mixed aerosols in the atmospheric media, we also studied the impact of internal and external mixing on the optical and radiative-transfer properties. The numerical results were obtained for some different types of aerosol in different locations, which are important in understanding the climate changes and global warming.
We also studied the problem of scattering the polarized radiation transferred through atmospheric media. These considered media are the air molecules and soot aggregates. We have studied the optical parameters of the considered media using Mie limiting in the form of the scattering and absorption cross-sections, single scattering albedo and the Rayleigh optical depth.
The radiative-transfer properties of the considered media are calculated in the form of reflectivity, radiant energy and net flux for different degree of polarization. Our results are compared with the available published data and showed very good agreement.