Amplitude Factorization Method in the Atmospheric Gravity-Wave Equation

作     者：Rein Room Marko Zirk 

作者机构：Institute of Environmental PhysicsTartu UniversityUlikooli 18Tartu 50090Estonia. 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2007年第2卷第5期

页      面：993-1006页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：supported by Estonian Science Foundation under Research Grant 5711 

主　　题：Atmospheric gravity waves linear buoyancy wave equation arbitrary stratification numerical solution amplitude factorization method. 

摘      要：A novel amplitude factorization method is applied to solve a discrete buoyancy wave equation with arbitrary wind and temperature height *** solution is given in the form of a cumulative product of complex factors,which are computed by a nonlinear,inhomogeneous,two-member recurrence formula,initiated from a radiative condition on *** of the wave equation due to evanescent winds are eliminated by turbulent *** method provides an estimation of the minimal vertical resolution,required to attain a stable accurate *** areas of application of the developed numerical scheme are high resolution modelling of orographic waves for arbitrary orography in general atmospheric stratification conditions,and testing of adiabatic kernels of numerical weather prediction models.