面源计算模式的一些改进和应用

本文对有面源高度的ATDL模式进行了一些改进,按照气象学定义的风向夹角确定面源计算区域,使计算区域的选’取意义更为明确。应用改进后的模式对唐山市的大气环境质量现状进行了计算,计算结果与实际情况基本符合,数据离差在二倍范围以内,相关系数在0.70以上。

Some Improvements and applications of the plane source computational model

This paper presents the improvement of the ATDL model with the height of plane source. Plane source computational area has been determined according to the meteorological definition of wind angle, in order to make the selective meaning of the computational area clear. The author has calculated the quality of the atmospheric environment of Tangshan City using the improved model and find that the results is basically conformed to reality. The data deviation is with in the limits of two times, and the correlation coefficient is above 0.70.