Numerical Modeling in Atmosphere, Ocean, and Environment Studies, № 7, 2001

The World Ocean Circulation Model based on the σ-coordinate transformation was modified to improve the pressure gradient force approximation and the diffusion transport presentation. The model was integrated for 1000 years to reproduce the general circulation and the thermohaline distribution for the World ocean.

In this work, a process-based approach is considered to simulate diurnal and seasonal dynamics of the methane flux in bog ecosystems, based on a parameterization of biological and physical-chemical processes leading to emission of CH4 to the atmosphere as suggested by Walter and Heimann (1999). A one-dimensional model is...

The major objective of the paper is to continue the study of the Kuroshio current “bimodality” South of Japan. The observational data were obtained in 40 oceanographic cruises by the FERHRI vessels during the period 1980-1990. Some of these periods were characterized by the on-shore (shelf), non-large meander state, whereas...

Some results of the numerical integration of the atmospheric hydrothermodynamics equations with the help of the LES approach are presented. It is shown that convective ensemble elements can generate macrostructures with various spatial geometries. The configuration and scales of the supercells depend on the free stream parameters.

The new pressure gradient correction method was developed for the models with topography-following coordinate system. The test experiments were based on the upwelling and downwelling modeling in Great Australian Bight. They show that new method gives more reliable correction in comparison with Fortunato and Baptista one.

The first results of the construction of complex numerical models for physical and biological systems of a deep ice-covered lake in early biological spring period are presented. This complex includes an eddy-resolving model of the convective mixing in the under-ice water layer and a model for the dynamics of the...

A three-dimensional large-scale geostrophic model of climate of the World Ocean with realistic topography is presented. The experiments on the response of the model on variations of the ocean surface temperature were carried out: warming by 1.5 degrees during 50 years, cooling by 1.5 degrees during 50 years, and warming-cooling...

It is offered to use Richardson's extrapolation on the basis of the up-wind scheme. Four difference problems with double grid steps at each grid point are solved simultaneously in one iteration process, which allows one to obtain a difference solution with the double grid step for all the grid points...