江苏省2006年酸雨分布特征及其与气象条件的关系分析

The analysis of acid rain monitor and its meteorologic cause of Jiangsu province in 2006

统计江苏省4个酸雨监测站2006年的酸雨监测资料得到:徐州、南京的年酸雨发生频率高于常年同期,年平均pH值低于常年同期;常州、淮安的年酸雨发生频率比常年同期偏少,年平均pH值高于常年同期;各站的月酸雨发生频率呈逐月上升趋势,秋冬季酸雨发生频次均高于历史同期。结合同步的气象要素分析发现,降水强度、风、前期气候状况以及天气系统等都与酸雨的发生有密切关系。

The statistics of acid rain monitor data of 4 acid rain monitor stations in Jiangsu province in 2006 shows ： the annual occurrence frequency of acid rain in Xuzhou and Nanjing is higher than that for the same period of average years, the mean annual pH value is lower . The annual occurrence frequency of acid rain in Changzhou and Huaian is lower than that for the same period of average years, the mean annual pH value is higher. The monthly occurrence frequency of acid rain of each station tends to rise month and month. The occurrence frequency of acid rain in autumn and winter is higher than the same historical period. And the further analysis on the meteorological elements of the same period shows that the intensity of precipitation ,wind, prior climate status and the weather system are the main causes of acid rain.