利用中尺度模式作辽宁省空气污染气象条件预报

Potential Prediction of Liaoning Air Pollution Using Mesoscale Model

利用非静力中尺度数值模式(MM5V2),试验预报辽宁省空气污染气象条件。在模式中着重加密近地面的垂直分层,使用中期数值预报模式(T106L19)预报场作为初值背景场和侧边界。采用美国污染潜势预报方法,在模式预报输出场中,通过对近地面层的混合层高度和混合层平均风速的判定,预测未来空气污染气象条件,并用SO_2实测值进行检验。

Experiment is done to make potential prediction of air pollution in Liaoning Province with non-hydrostatic mesoscale model (MM5V2) with increased levels near the ground. The T106L19 output is used as initial field and lateral boundary condition. According to American method, the potentiality of air pollution is predicted by means of judging the mixing layer height and the mixing layer average wind speed near the ground. The observation data of SO_2 is used to check the prediction.