On the Application of Trajectory Methods in Numerical Forecasting
On the Application of Trajectory Methods in Numerical Forecasting
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浅谈轨迹法在数值预报中的应用
DOI：
10.1111/j.2153-3490.1959.tb00019.x
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发表时间：
1959
期刊：
影响因子：
2
通讯作者：
A. Wiin
中科院分区：
文献类型：
--
作者：
A. Wiin
将目前物理天气预报中常用的数值方法与图解方法所取得的结果进行比较，可以认为目前预报方法的某些缺陷可能是由于欧拉技术造成的。研究了使用准拉格朗日技术的可能性，发现这种技术是可能的，并且当与空间平滑相结合时变得特别简单，该平滑可以消除光谱中较短的快速移动波。本文描述了正压情况下的拉格朗日计算方法以及简化的双参数斜压模型。
On the basis of a comparison between the results so far obtained by the usual numerical methods in physical weather prediction and the graphical methods it is likely that certain defects in the present forecast methods are due to the Eulerian technique. The possibilities for the use of a quasi-Lagrangian technique are investigated, and it is found that such a technique is possible and becomes especially simple when combined with a space-smoothing which eliminates the shorter fast moving waves in the spectrum. The Lagrangian method of computation is described in the barotropic case and also for a simplified two-parameter baroclinic model.