计算物理 ›› 1992, Vol. 9 ›› Issue (S2): 735-736.

• 论文 • 上一篇    下一篇

一种削弱数值模式中虚假重力波的方法

黄亚辉, 周晓平   

  1. 1. 空军气象学院, 南京 211101;
    2. 中科院大气物理研究所
  • 收稿日期:1991-12-29 出版日期:1992-12-31 发布日期:1992-12-31

A METHOD TO REDUCE THE VIRTUAL GRAVITY WAVES IN A NUMERICAL MODEL

Huang Yahui, Zhou Xiaoping   

  1. 1. Air force Institute of Meteorology, Nanjing 211101;
    2. Institute of Atmospheric Physics
  • Received:1991-12-29 Online:1992-12-31 Published:1992-12-31

摘要: 本文提出了一种削弱σ坐标中尺度数值模式中虚假重力波的方法。选取了一次实例进行了试验。其结果表明,该方案不仅能显著地削弱初始场中的虚假重力波,而且能进一步地削弱或抑制模式运算中的虚假重力波,模拟结果能得到改进。

关键词: 数值模式, 重力波

Abstract: In this paper, a method to reduce the virtual gravity waves in numerical model is proposed. An experiment of a case using this method is carried out. The result shows that the "noise" is weaken not only in the initial field but also also in the computational processes, and the simulated results are improved.

Key words: gravity wave, numerical model