沙尘天气对北京市空气质量的影响及其预测预报

概述了北京市沙尘天气的分类、特征、判别方法,总结了2000—2002年沙尘天气对北京市空气质量的影响情况,提出了沙尘天气影响空气质量的短期(1～2d)预报方法。利用该方法预报了2002年4次主要沙尘天气过程,预报结果都比较准确。研究发现沙尘天气年际变化主要是受气候条件年际变化影响,提出根据气候条件年际变化预测来进行沙尘天气年际变化预测的初步方法。 

Influence of Sand Weather on Air Quality of Beijing and Its Forecast

The classification and characteristics of various sand weather systems were briefly introduced,and the influence of sand weather on the air quality of Beijing from 2000 to 2002 summarized.A short-term(1～2　d) forecast method was developed to forecast the influence of sand weather on the air quality of Beijing.The method was applied to forecast 4 main sand weather processes in 2002,all with satisfactory results.It was found that the change of annual sand weather is mainly induced by the change of annual climate condition.Therefore,a primary method was developed to predict the sand weather condition of next several years based on the prediction of the climate condition.