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Application of Tschebyscheff Functions to the Vertical Discretization of Atmospheric Models
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摘要: 文章就常用全球谱模式中的垂直离散问题进行了讨论，给出了用Tschebyscheff函数积分静力方程、连续方程，以及计算垂直平流、垂直扩散等的方法。还对某些气象要素在垂直方向微商呈现间断的问题进行了分析，指出了其中存在的问题和应采取的措施。
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关键词:
- 大气模式;
- 垂直离散;
- Tschebyscheff函数
Abstract: Discussions are made on the vertical discretization of current global spectral atmospheric model. Based upon Tschebyscheff functions methods are given for integrating the hydrostatic equation and the continuity equation and for computing vertical advection and vertical diffusion. Furthermore, in the case that the vertical derivative of a meteorological element is discontinuous, the measures to be taken are discussed and suggested-
Key words:
- Atmospheric models;
- Vertical derivative;
- Tschebyscheff functions
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