A Computational Study of the Transformation of Global Gas Flows in the Earth’s Atmosphere over the Course of a Year

• 作者: Igor V. Mingalev Konstantin G. Orlov Victor S. Mingalev
• 来源期刊: 流体动力学(英文)
• 学科: 地球科学
• 关键词: NUMERICAL Simulation Air Flow LOWER and MIDDLE ATMOSPHERE
• 年，卷（期）: 2014,（4）
• 页码范围: 379-402
• 页数: 24页
• 分类号: P4

摘要

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.