The satellite observations of smoke plumes from the pipes of power stations make possible to obtain prompt information about the processes of impurities distribution in the atmosphere and about the source parameters. This paper proposes a method of numerical reconstruction of characteristics of the active stage of the smoke stream elevation. The models for evaluating the processes of the gas-air mixture rising from a source under the in fluence of dynamic and thermal factors are discussed. As the basic relations, analytical solutions to the equations of hydrothermodynamics in the axially symmetric approximation are used. Using the winter satellite images, the numerical analysis of the active phase of smoke plumes elevation from the pipes of the Novosibirsk power stations has been carried out.