Abstract
A mathematical model, developed earlier in the Polar Geophysical Institute, is applied to investigate the transformation of global gas flows in the Earth’s atmosphere over the course of a year. The model is based on the numerical solution of the system of gas dynamic equations. The mathematical model produces three-dimensional distributions of the gas dynamic parameters of the atmosphere in the height range from 0 to 126 km over the Earth’s surface. To investigate the seasonal transformation of the global circulation of the lower and middle atmosphere, simulations are performed for conditions corresponding to twelve dates, which belong to twelve different months. Results of simulations indicate that the variations of the solar illumination of the Earth’s atmosphere, conditioned by different positions of the Earth along its trajectory around the Sun, influence considerably the transformation of the planetary circulation of the lower and middle atmosphere over the course of a year.
Highlights
Fluid dynamics may be successfully applied for solving problems of environmental sciences
The utilized mathematical model of the global neutral wind system can be used for different solar illumination and geomagnetic conditions
To investigate the seasonal transformation of the global circulation of the lower and middle atmosphere, simulations are performed for conditions corresponding to twelve dates, which belong to twelve different months
Summary
Fluid dynamics may be successfully applied for solving problems of environmental sciences. (2014) A Computational Study of the Transformation of Global Gas Flows in the Earth’s Atmosphere over the Course of a Year. Open Journal of Fluid Dynamics, 4, 379-402. Several general circulation models of the lower and middle atmosphere have been developed during the last three decades (for example, see [1]-[12]). It can be noticed that the bulk of these models are hydrostatic. The hydrostatic models include the pressure coordinate equations of atmospheric dynamic meteorology, with the vertical velocity being obtained with the help of a simple hydrostatic equation
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