计算物理 ›› 1997, Vol. 14 ›› Issue (S1): 733-733.
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摘要： 为实现有限计算机条件下尽量高分辨率的区域气候模拟可以采用嵌套的方法。嵌套误差从本质上讲是由于侧边界条件的不适定性造成的,即对目前区域气候模式中多采用的静力平衡假定下的原始方程组,理论上讲并不存在适定的侧边界条件,各种侧边界处理方案都只是消除或抑制计算波使模式计算稳定的手段,因此嵌套误差的存在是必然的。区域气候模拟除存在以上嵌套误差的共性外,还有其特殊性,主要是长时间中积分误差的积累性。该文目的旨在对区域气候模拟中嵌套误差的种类、来源及其时空分布和时间积累性特点作一比较系统的分析,并在此基础上提出减少误差的新思路、新方法。
