摘要
基于区域大气模拟系统 (RAMS) ,采用水平网格嵌套等方法 ,实现了使用同一模式对区域尺度和城市尺度气象场的同步模拟。作者重点模拟和分析了济南地区两种典型的中尺度局地环流———城市热岛环流和山谷风环流。在考虑复杂地形条件和非均匀下垫面型对中尺度天气系统的动力过程和热力过程的影响下 ,结合考虑长短波辐射、湍流扩散和积云对流等多类重要物理过程 ,揭示了影响济南地区这两种中尺度局地环流的基本特征及其形成、演变规律。
Based on the international advanced model system——the Regional Atmospheric Modeling System (RAMS) and by means of new multi\|layer grid nesting technique, a multi-scale meteorology numerical forecasting model system has been finished, which can make simulation for regional and city\|scale systems synchronized or paralleled.The emphasis of the research is put on the simulation of the local circulations in Jinan,such as heat island circulation, mountain-valley breeze.Under consideration of the thermal and dynamic effect of complex terrain and uneven underlying surfaces on meso-scale synoptic system, combined with some important physical courses such as long-and short-wave radiation, turbulent diffusion and cumulus convection, the basic characteristic, formation and variation rules of the two kinds of moso-scale local circulation are revealed.
出处
《气候与环境研究》
CSCD
2003年第4期467-474,共8页
Climatic and Environmental Research
基金
中国科学院"引进国外杰出人才"计划 (全球环境变化 ) 2 0 3 2 3 0 4资助
