常州市区逆温特征及其对大气污染的影响

THE INVERSION AND ITS EFFECT ON AIR POLLUTION IN THE URBAN DISTRICTS OF CHANGZHOU

本文根据1984年1月至1985年春在常州地区观测到的气象资料,分析了常州市区贴地、低层逆温的季节变化及冬秋季日变化特征。1987年1月8日利用大气航测SO_2、气溶胶浓度资料和低探,分析了冬季大气污染物浓度分布特征,同时,用地面多波段摄影技术和图像处理技术,真实直观地取得在逆温生消时,大气污染物输送过程中的“泡状结构”和垂直通道结构的图像照片。

In this paper the seasonal and diurnal (in winter and autumn) variations ofboth ground-level and low-level inversion in the urban districts of Changzhou is anal-ysed by using the data obtained from January 1984 to the spring of 1985 in Changzhou.The spatial distribution of air pollutant concentration in winter is examined, based onthe SO_2 and aerosol concentration data from airplane and low-level sounding on Jan-uary 8, 1987. Photographs which display the 'bulb-shape' and 'vertical passage' areconstructed by using ground multi-band photography and image processing techniques.