Numerical Simulation of Mass Forcing on a Rainstorm in North China
一次华北暴雨过程中“质量强迫”的数值模拟

In rainstorm system,mass of wet air can be decreased by heavy precipitation,and this decrease introduces a force on the development of rainstorm and this force is called !mass forcing" in this article.First,the tendency equation of perturbation pressure for ARPS numerical model,which includes mass forcing,is deduced by introducing a modified continuity equation.Secondly,with this model,a cold-front rainstorm in North China is simulated and diagnosed.Result shows:(1)Mass forcing can influence the amount of p...