1988年两广地区春季酸雨观测和天气形势分析

1988年3月10日—4月5日正值春季,共有五次明显的冷空气入侵广东和广西两省,造成冷锋降水过程,作者分析了每次降水过程500hpa、700hpa、850hpa和地面各层流场情况,目的在于确定形成两广春季酸雨的带有致酸污染物的高低空气流的来向,并同时在广州、桂林等地面站,苗儿山、狮子山和白云山等不同高度的高山站,进行了降水酸度和电导率的观测,以广州和桂林机场为基地进行两广地区云水酸度和电导率的飞机航测,了解到同一降水过程中不同地区和高度的云、雨水酸度和电导率特征,以及在不同降水过程中这些参量的变化。

An Observation of Spring's Acid Rain and an Analysis of Weather Situation at the Liangguang's Area of China in 1988

From March 10 to April 5 of 1988, there were five obvious acts of cold air which intruded into provinces of Guangdong and Guangxi in China, and formed precipitations of cold front. In order to determine the directions of dry and wet strealines with acidific pollutant in upper air and bottom layer when the acid rains were formed, author analysed streamline fields of different layers which are 500hpa, 700hpa, 850hpa and ground level. Acidity and electric conductivity of precipitation were observed in ground stations of Guangzhou and Guilin and mountain stations of Miaoer Mountain, Shizi Mountain and Baiyun Mountain stations have different heights. Meanwhile, aircraft sounding of acidity and electric conductivity of cloud water were implemented in the Liangguang's area, taking the bases as Guangzhou and Guilin airports. We knew that the characteristics of acidity and electric conductivity of cloud and rain in the same process of precipitation of different areas and altitudes, and the changes of these parameter's in the different processes of precipitation.