三维弹性套网格中尺度(β-γ)大气模式的检验和实例研究

THE VERIFICATION OF A THREE DIMENSIONAL ELASTIC NESTED-GRID MESO SCALE (β-γ)ATMOSPHERIC MODEL

中文关键词:  检验  中尺度  套网格模式

英文关键词:Verification  Mesoscale  Nested-grid model

中文摘要:

      应用文献[1]建立的中尺度(β-γ)大气模式,模拟了强对流风暴、过山气流与降水、及山谷风和海陆风等重要中小尺度天气过程,研究了各个过程的发展特点,检验了模式各部分功能。模拟结果与实际观测、国外模拟结果和概念模型相当一致,表明模式方程、物理参数化、地形坐标系和套网格设计等对局地天气过程中复杂的云过程、下垫面强迫和地形效应具有较强的模拟能力,适用于各种局地天气过程的模拟研究。文中对各个个例模拟结果进行了初步分析,揭示了它们的结构特征和演变机理,并指出了模式的一些缺点和未来进一步完善的方向。

英文摘要:

      By use of the model developed in reference[1],the simulations of severe storm,winter flow and snowfall over a mountain,as well as mountain-valley wind and sea breeze were performed.Different functions of the model were verified through the computation and the results were similar to that of observations,conceptual model,and simulations by other authors.It was shown that the model was applicable for various local and regional weather processes in respect of their inner structure,interaction with environment,and orographic and underlying forces.In addition,some important characteristics and mechanisms of the processes were also analyzed.