Vol. 324 No. 2 (2014): Математика и механика. Физика

The research of layered dispersion media absorption

The urgency of the discussed issue is caused by the need to develop the model for interaction between the sun radiation and atmosphere for the exact and long-term forecast of weather and climate phenomena in the atmosphere. The main aim of the study is to solve the problem on radiation transfer in the layered dispersed media analytically and to identify the general laws on radiation transfer depending on the radiation parameters and media. The methods used in the study: solution of the radiation transfer equation for space-limited layered dispersed media; the equation solution is based on the exact solution of the radiation transfer equation in one-dimensional media. The results: the authors have studied the radiation transfer in multilayer dispersed media. The analytical formulae for calculating the transmission coefficient, reflectance and absorption of dispersion media consisting of three plane layers were obtained. It was shown that absorption of dispersed media depends strongly on absorption layer position in dispersed media. The highest absorption value is registered at upper position of the absorbing layer; the lowest value is marked at the layer lower position when the light falls from above. In this case the absorption slightly depends on the absorbing layer position. Similar characteristics were obtained for different values of optical thickness of dispersion media.

Keywords:

radiation, atmosphere, dispersion media, absorption, layer

Authors:

Boris Goryachev

Sergey Mogilnitsky