2004—2013年抚顺市雾霾天气特征分析

对2004—2013年抚顺市气象观测数据进行统计分析,结果表明:抚顺市雾、霾天气均呈波动变化趋势。近10年,全年平均雾天气日数为152 d,其中以轻雾日数为主,占雾日的95%;大雾年总日数只占雾日的3%;2008年开始,抚顺市浓雾和强浓雾日数逐渐增多,特别是在2013年浓雾出现4次,强浓雾出现7次。轻雾天气夏季最多,秋冬次之,春季最少;而对于大雾、浓雾、强浓雾天气秋季最多,夏天次之。霾天气年平均出现日数为75 d,且以轻微霾天气为主,其占总霾天气日数的96%。但2012年开始轻度霾和中度霾的日数逐渐增加,2013年出现轻度霾和中度霾的日数分别为12、2 d。同时,冬季不仅轻微霾日数最多,且轻度霾、中度霾天气日数也最多,说明冬季是抚顺市霾天气的高影响季节。

Analysis of Mist and Haze Weather in Fushun City from 2004 to 2013

The observation data of Fushun City from 2004 to 2013 were analyzed.The results showed that the mist and haze weather in Fushun City were fluctuation trend. In recent 10 years,the average annual fog days were 152 days,of which the light fog days mainly,accounting for 95%;the annual total number of dense fog days accounted for only 3%. Beginning in 2008,the heavy fog and strong heavy fog days increased gradually,especially the heavy fog appeared 4 times in 2013,and the strong heavy fog appeared 7 times. The average annual haze days were 75 days,and with a slight haze weather primarily,accounting for the total haze day number 96%. The number of mild haze and moderate haze days gradually increased in 2012,The number of mild haze and moderate days was 12 d,2 d respectively in 2013. At the same time,the winter was not only a slight haze day number at most,but also mild haze and moderate haze days was the most. That winter was the season of high impact of haze weather in Fushun City.