山东省城市大气降水pH值观测结果及其初步分析

通过对山东省十七个主要城市2003年大气降水观测数据的统计分析,对大气降水pH值的时空分布特征和酸雨频率进行了分析。结果表明,山东省酸雨主要出现在秋季和冬季;鲁北平原、鲁中南的莱芜地区,胶东半岛地区频率较高。从酸雨与气象条件的初步分析得出,风速越小时,地面风对酸雨的贡献就相对增大;冬季接地逆温的存在为酸雨形成提供了极其有利的条件。文章并从气象角度对酸雨成因机理作了初步的分析。

The City's Atmospheric Precipitation pH Observation of Shandong and Initial Analysis

Through statistical analysis of seventeen city's atmospheric precitation observation data in 2003 in Shandong,it has analyzed the space-time distribution characteristic of atmospheric precipitation pH and acid rain frequency.The results show: the acid rain in Shandong mainly occurred in autumn and winter,the acid rain frequency is much high in plain of the north in Shandong,Laiwu area of the middle and southern in Shandong,Jiaodong Peninsula area.From the acid rain and initial analysis of the meteorological condition,it can know that the less wind speed,the more ground wind distribution to acid rain.The existence of ground inversion in winter offered the extremely favorable condition for taking shape acid rain.The article has analyzed preliminarily the cause of acid rain from meteorological angle.