在细网格模式中引入总体边界层参数化方案的数值试验

THE NUMERICAL EXPERIMENT OF BULK BOUNDARY LAYER PARAMETERIZATION SCHEME INTRODUCED INTO THE FINE-MESH MODEL

本文把MM4模式中的总体边界层参数化方案引入到十一层细同治原始方程数值模式中去，用它与仅考虑简单边界层国擦的细网格模式对一典型江淮气旋天气过程分别作了24小时对比模拟试验；初步试验结果表明：边界层总体参数化方案的引入是可行的，对模式的预报效果在某些方面有显著改进．

In this paper, the bulk boundary-layer parameterization scheme in MM4 model is introduced into a 11 - level fine-mesh primitive equation model. The comparison of 24 -hours numerical model experiment to the Jiang Huai cyclone process has been performed by using two forms. One is the model including a simple boundary-layer friction process. The other is the model including a bulk boundary-layer parameterization scheme. The tantative experiment results show that the bulk boundary-layer which is introduced into fine-mesh model is good. Its forecast ability, in some ways, is much better than that of the model including a simple boundary-layer friction scheme.