Numerical solutions of the problem of salt-transfer in soils

Work is devoted to work out of effective numerical methods of the decision of problems of forecasting of mineralization of a soil solution taking into account of differential porosity and sorption and dissolution processes. The algorithm of the decision of a problem consists of the following sequence action. On time are used quadrature to the formula and regional problems with any boundary conditions dare a method of differential prorace. Testing of the program realising algorithm of the offered method of calculation it is carried out by the decision of the known problems, having practical application

Computer Modeling of Aerosol Emissions Spread in the Atmosphere

The paper deals with the development of mathematical model and numerical algorithms for solving the problem of transfer and diffusion of aerosol emissions in the atmospheric boundary layer. The model takes into account several significant parameters such as terrain relief, characteristics of underlying surface and weather-climatic factors. A series of numerical experiments were conducted based on the given model. The obtained results presented here show how these factors affect aerosol emissions spread in the atmosphere