摘要
本文采用美国俄勒岗州立大学(OSU)两层大气环流模式,进行一重、二重嵌套区域气候模式的试验研究。研制细网格区域模式是目前气候模式发展的一个重要方向。本文实施一重、二重嵌套方案的月平均模拟结果表现了实现多重嵌套区域气候模式的可行性,即模拟平均场能够描述区域气候特征,且具备在细网格(d/2或d/4)感兴趣区域添加更详细资料(地形、植被等)的条件;本文运用An(?)hes等(1989)提出的张弛逼近方案处理侧边界,在一重、二重嵌套试验中均取得较佳计算结果。
Based on the Oregon State University Two-Level Atmospheric General Circulation Model (OSU AGCM), an experiment study of one-layer and two-layer nested general circulation model are performed in this paper. At present, developing a limited area fine mesh model of general circulation is an important direction of the development of atmospheric general circulation model. The results show that to tcarry ou a nested general circulation model is feasible, that is, (i) the nested limited area model can be run for long simulation times without excessive generation of error; (ii) the synoptic systems simulated by the nested model can show features of regional climates; It is verified that the relaxing or nudging scheme put forward by Anthes etc. is much scheme of dealing with lateral boundary in the numerical experiment of one-layer and two-layer nesting scheme.
出处
《气象科学》
CSCD
北大核心
1993年第3期269-280,共12页
Journal of the Meteorological Sciences
基金
国家自然科学基金资助
