数值预报方法在广州空气质量预报中的应用

空气污染预报涉及到多介质、多界面、多物质之间相互作用和耦合的多学科问题,文中概括地论述了空气污染数值预报的基本特征(尺度及预报时效、时空分辨率、多物质性、理化生过程耦合、城市空气污染气象与污染物排放特征);数值预报系统的基本构成(气象场预报和浓度场预报);模式原始资料的收集、分类整理,边界场、背景场和初始条件的处理;计算过程中Meso-α模式和Meso-β模式资料同化的处理以及数值预报模式系统的实际业务操作的及时性、可行性和准确性均作了细致深入的探讨.

Numerical Forecasting System and Its Application in Guangzhou

Air pollution forecasting is relations to many materials,many interfaces,and interactions with many courses,this text will dis- cuss basic method of air pollution numerical forecasting(scale and time limited,spaces distinguished,many materials,the physical and chemi- cal process,the city air pollution meteorology and air pollutants exhausting),Numerical forecasting system includes meteorology forecasting and physical forecasting,data collecting and classificating are discussed.Initial,Lateral boundary and background conditions are also studied.The advantage of FDDA system are based on the ability of MMM to make use of the plentiful observations available after the initial time of each sim- ulation in numerial algorithms And how to operate numerical forecasting system.We also discuss time possibility and model accuracity.