异模式嵌套及中期降水数值预报的试验

A Nesting of Two Different Models and Numerical Experiments of Mid-Range Precipitation Forecast

成功地将一有限区域细网格模式嵌套在Ｔ６３Ｌ９。全球谱模式中，并利用该嵌套模式做了降水中期数值预报的试验。结果表明，嵌套的细网格模式预报的中期降水明显地优于该谱模式，要做好中期降水预报，使用嵌套模式是必要的。

A numerical experiment on nesting two different models is successfully done by the use of a global spectral model and a limited-mesh model. And the numerical forecast of mid-range precipitation is also done by use of the nesting grid model. The results show that the forecasting of the mid-range precipitation by use of the nesting model is observably better than by the spectral model. Therefore, it is.necessary to forecast the mid-range precipitation by the nesting model.