一种减少有限区气倏模式嵌套误差积累的方法

摘要

A new method of Three Dimensions Nested used to reduce the accumulation of lateral boundary errors was introduced.The reason,the need to point out this method and its principle basement were expounded in details.The contrast experim ents between the three Dimensions Nested and the Two Dimensions Nested were cond ucted.The results show that the Three dimensions Nested not only can help to red uce the accumulation of lateral boundary errors,but also can make the simulation of rainfall more accurate.%介绍了一种用于减少有限区气候模式中嵌套误差积累的新方法——三维嵌 套方法，详细阐述了这种方法提出的原因、必要性和它的理论基础。在有限区气候模式上进 行三维嵌套与二维嵌套的对比试验，试验结果表明三维嵌套方案可减少嵌套预报误差的积累 ，并且对于降水的预报也有很大的改善。