滨州市酸雨天气及气象条件分析

Analysis of Acid Rain and Weather Conditions in Binzhou City

利用滨州国家一般气象站2007—2016年509次酸雨观测资料进行分析,得出滨州市酸雨出现频率为11%,降水pH呈缓慢增加趋势,酸雨频率呈减少趋势。全年冬季降水的酸性程度最严重,春季出现跳变,夏秋季稳定在6.3左右;月平均风速与酸雨频率在1—7月呈负相关,8—12月呈正相关;从春季到夏季,轻雾日数与酸雨频率呈正相关,与降水pH呈负相关;从秋季到冬季,轻雾日数与酸雨频率呈负相关,与降水pH呈正相关。

Based on the analysis of 509 times of acid rain observations in Binzhou National General Weather Sta- tion from 2007 to 2016, the frequency of acid rain in Binzhou City was 11%, the pH value of precipitation was increasing slowly, and the frequency of pH value of precipitation showed a decreasing trend. The acid rain was the most serious in winter, appearing jumping change in spring and stabling at 6.3 in summer and autumn. The monthly average wind speed was negatively correlated with the acid rain frequency from January to July, and there was a positive correlation from Au- gust to December. From spring to sum- mer, the number of mist days was posi- tively correlated with acid rain frequen- cy, and was negatively correlated with with the pH value of precipitation. From autumn to winter, the number of mist days was negatively correlated with acid rain frequency and positively correlated with precipitation pH value.