钦州市大雾天气的气候特征及天气分型  

Climate Characteristics and Synoptic Patterns of Fog in Qinzhou

作　　者：何小娟 张雪波 谢仁忠 李斌喜 

机构地区：[1]广西钦州市气象局,广西钦州535000

出　　处：《安徽农业科学》2012年第31期15359-15362,共4页Journal of Anhui Agricultural Sciences

摘　　要：根据钦州市3个站1970～2010年大雾资料,分析了大雾天气的分布和气候变化特征。结果表明,钦州市大雾南多北少,沿海地区为多雾区,北部的灵山、浦北为少雾区;年际变化总体呈下降趋势;钦州市大雾月际变化呈不对称"V"型特征,春雾最多,冬季次之,夏季最少;大雾的生消时间集中在下半夜到上午,雾的持续时间3 h以内的短雾最多;钦州市大雾发生时的地面天气形势主要有冷锋前的暖区型、变性高压型、静止锋型、西南低槽型。The distribution and climate characteristics of fog in Qinzhou were analyzed by using fog data from three weather stations in Qinzhou from 1970-2010.The results indicated that fog days occurred more frequently in the south part such as coastal area than in the north part such as Lingshan and Pubei.There was a declining annual tendency in foggy days and a V-shaped monthly variation feature with the maximum in spring and minimum in summer.The fogs occurred generally in night and early morning,and dissipated most likely at ten to twelve o＇clock.The duration of fog was mostly less than 3 hours and there was no fog maintaining more than 17 hours.Based on the weather maps from 1970 to 2010,the surface synoptic patterns favorable for foggy days can be classified to four kinds：continental anticyclone,warm zone in front of cold front,uniform pressure field and low pressure with an inverted trough.

关 键 词：大雾 气候特征 天气分型 钦州市 

分 类 号：S161.5[农业科学—农业气象学]