Properties of Kinetic Energy Horizontal Gradient of Multilevel Barotropic Atmosphere

Abstract

Based on multilevel primary barotropic atmospheric equations of motion, the relations between the kinetic energy horizontal gradient at each level and corresponding geostrophic deviation of weather systems of different scales are obtained. The main conclusions are as follows. It is the physical essence of kinetic energy horizontal gradient that the values of kinetic energy gradient at each level are approximately proportional to the values of the corresponding geostrophic deviation in multilevel barotropic atmosphere. The analysis of the values of kinetic energy gradient makes it possible to diagnose and analyze atmosphere system of various scales in wind field terms. This is superior to meso scale systems.