计算物理 ›› 1992, Vol. 9 ›› Issue (S2): 768-770.

• 论文 • 上一篇    下一篇

初值格谱变换的分析比较

卢咸池, 何斌   

  1. 北京大学地球物理系, 北京 100871
  • 收稿日期:1992-05-06 出版日期:1992-12-31 发布日期:1992-12-31
  • 基金资助:
    本像工作得到国家自然科学基金的部分资助

TWO WAYS TO PERFORM INITIAL DATA GRID-SPECTRAL TRANSFORM

Lu Xianchi, He Bin   

  1. Department of Geophysics, Beijing University, Beijing, 100871
  • Received:1992-05-06 Online:1992-12-31 Published:1992-12-31

摘要: 本文比较了求算初值格谱变换的插值法和直接变换法,指出: 直接变换法虽计算量稍大,但求算谱系数误差小、精度高,是一种有效的方法。

关键词: 大气模式, 初值形成, 格谱变换

Abstract: The interpolation method and the direct transform method were used to perform initial data grid-spectral transform, and it is shown that the latter one, with somewhat more computation operations, is more suitable to calculate spectral coefficients with much higher accuracy.