摘要
利用长治市2007—2009年的酸雨观测资料,分析了长治市酸雨的年变化规律及酸雨与降水量、风速、风向等气象要素的关系,结果表明:10月酸雨强度最高,9月次之,12月最低。小雨时酸雨发生频率为49.25%,中雨时为77.78%,大雨及以上量级时为100.00%。随着风速增大,降水的酸雨频率减少;静风时,酸雨出现次数几率为18.81%,N、SE和SSE风向下的酸雨出现次数几率为9.90%。
The annual variation of acid rain was discussed based on the analysis of the acid rain observation data from 2007 to 2009 in Changzhi city.The relationship was analyzed between acid rain and precipitation,wind velocity,wind direction and other meteorological elements in Changzhi city.The result showed that the acid rain intensity is the highest in October,and September,November followed.The acid rain frequency is 49.25% when it is light rain,77.78% in medium rain,100.00% in order of magnitude more heavy rain.As the wind velocity increases,acid rain frequency decreases;the acid rain frequency is 18.81% when it is calm,9.90% in N,SE and SSE breeze.
出处
《气象与环境科学》
2011年第B09期70-74,共5页
Meteorological and Environmental Sciences
基金
山西省气象局2010年度青年基金项目"山西省酸雨特征及气象条件研究"资助
关键词
酸雨
年变化特征
气象要素
acid rain
interannual variation characteristic
meteorological element
