Numerical Modeling in Atmosphere, Ocean, and Environment Studies, № 11, 2007

Currently, there is observed an increase of the polar vortex as well as an increase in the temperature gradient. This paper considers the influence of the stratosphere circulation on the troposphere. It has been found that an enhancement of cooling in the polar stratosphere brings about changes in the tropospheric...

The results of mathematical modeling, which demonstrate the response of the temperature conditions of the atmosphere of the North hemisphere to the changes of the solar activity, are presented. The calculations with the help of the ECSib climatic model (ICM&MG of SB RAS) were carried out. In the course of...

The global hydrological cycle in the atmosphere and ocean plays an important role in determination of the climatic state of the Earth. The atmosphere transfers to the continents about 40 th km3 of fresh water per year. Directly above the continents, this volume is supplemented with an additional amount...

In this paper, it is shown that there are great differences in seasonal variations of concentrations of the main atmospheric pollutants in various parts of a large urban territory. The city of Krasnoyarsk is used as an example. For this, an observation method proposed by the authors is used. The...

On the basis of the variational principle, the method of dynamic-probabilistic numerical modeling of ensembles of independent realizations of a complex of space-time stochastic fields is proposed. The ensemble of realizations satisfies the statistical structure of real fields, and the each realization of this ensemble satisfies a numerical dynamic model...

Based on the statement of inverse problems of pollutants transfer, the processes of formation of the long-term aerosol impurities of a certain area were theoretically studied. To this end, the properties of similarity of impurities spread processes and the statistical characteristics of wind and the turbulent conditions in the near-surface...

The three-dimensional seasonally forced linear model of the World ocean climate with a real bottom and 24 levels in the vertical coordinate has been developed. The computational domain includes the Arctic ocean. The numerical method is based on using the implicit schemes. The equations of heat and salt transport on...

The paper presents a numerical model of planimetric currents in channel systems of a complicated spatial configuration. The model is based on the two-dimensional Saint–Venant equations. The influence of a non-homogeneous flow structure on the admixture transport processes in the water is studied. Calculation of current and passive substance redistribution...

The propagation of a cold front over a mountain is simulated by a local non-hydrostatic finite difference model. New conservative difference operators are proposed for the advection terms inside the computational domain. Temperature transport is calculated with semi-Lagrangian scheme and data produced by the finite difference model. Comparisons are made...