【摘要】 本文讨论了在全球区域和有限区域范围内运用假谱方法(PSEUDO-SPECTRAL METHOD)进行数值诊断分析的基本原理和具体方法。并用一个计算方案统一了连续方程垂直积分求取垂直速度中的“从上往下”法和“从下往上”法。本文介绍的假谱诊断模式精度高,既适用于全球或半球,也适用于有限区域,对计算机的要求亦不高。更多还原

【Abstract】 The basic method and numerical schemes of pseudo-spectral diagnostic model is discussed for the global and limited area in this paqer. A numerical scheme of vertical integration of continuity equation is presented here to generalize two common used schemes, i. e. so-called "upward integration" method and "downward integration" method. The method presented in this paper has a high accuracy and a low requirement to the computer. It is also applicable to a global as well as a limited area.更多还原