高分辨不稳定能量的实时计算显示及应用

介绍了高分辨不稳定能量的算法.用该算法实现的实用程序能计算出每个地面站每小时的高分辨不稳定能量、地面假相当位温、抬升凝结高度等,并能在福建地图上显示出来.个例分析显示:在高分辨不稳定能量正高值区或其下游,若短时内(未来3 h内)有对流回波产生或经过,则将会发展,其值越大,天气越强;而地面假相当位温分布图能细致表现能量分布及地面冷空气的活动.

Real Time Calculation Display and Application of High Resolution Unstable Energy

The algorithm for calculating unstable energy with high resolution is described. A applied program was designed with the algorithm. Accordingly, the unstable energy, surface pseudo equivalent potential temperature, and lifting condensation level of each surface meteorological station in the research area are calculated and displayed hourly on the Fujian map. A case study shows that convective echoes will develop if there occur convective echoes in three hours in the high unstable energy area or leeward area, the larger the unstable energy, the more intense the weather; and the pseudo equivalent potential temperature chart can reflect precisely the distribution of energy and cold air movement.