1981-2015年福州地区雾日数的变化趋势

Variation Trend of Fog Days in Fuzhou from 1981 to 2015

本文根据1981—2015年福州及所辖7个县市其(福清、连江、罗源、闽侯、闽清、永泰、长乐)以及平潭综合实验区共9个站点地面气象常规观测资料,分析近35年来9个站点雾日数的时间变化特征以及空间分布特征。结果表明:近35年福州市9个站点除了福清站雾日数在2000年之前呈现显著减少的趋势,在2000年后又略增加以外,其他站点年雾日数总体上均呈现下降趋势;9个站点夏季、秋季雾日数均呈减少趋势,而福清站在春季、冬季雾日数呈上升趋势,连江站冬季雾日数也有小幅增加。

Based on the surface meteoro-logical observation data of 9 stations in Fuzhou, 7 counties and cities(Fuqing, Lianjiang, Luoyuan, Minhou, Minqing, Yongtai, Changle) and Pingtan comprehensive experimental area from 1981 to 2015, the temporal variation characteristics and spatial distribution characteristics of fog days at 9 stations in recent 35 years were analyzed. The results show that in recent 35 years, except for Fuqing station, the number of fog days decreased significantly before 2000 and increased slightly after 2000, the number of fog days at other stations decreased on the whole;The number of fog days in summer and autumn of the nine stations showed a decreasing trend, while the number of fog days in spring and winter of Fuqing station showed an increasing trend, and the number of fog days in winter of Lianjiang station also increased slightly.