四川省1980~2014年霾的时空分布特征  

Spatial and Temporal Variations of Haze in Sichuan Province from 1980 to 2014

作　　者：唐信英[1] 罗磊[1] 王鸽[1] TANG Xinying;LUO Lei;WANG Ge(Institute of Plateau Meteorology,CMA,Chendu/Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province,Chengdu 610072,China)

机构地区：[1]中国气象局成都高原气象研究所/高原与盆地暴雨旱涝灾害四川省重点实验室,成都610072

出　　处：《高原山地气象研究》2022年第4期146-149,共4页Plateau and Mountain Meteorology Research

基　　金：中国气象局成都高原气象研究所基本科研业务专项项目(BROP202014)。

摘　　要：利用四川省1980~2014年地面观测站气象资料,系统分析了四川省霾的时空分布特征。结果表明:四川省霾日高值区主要分布在四川盆地;川西高原、攀西地区霾天数极少;重度霾主要分布在四川盆地的中东部地区,中度霾年平均最大值40d出现在自贡;轻微霾日数随时间变化不大且发生日数最多;中度霾和重度霾时间变化特征相似,呈现波动性变化,1992年达到峰值,随后又呈波动性下降趋势;霾的发生有显著季节性特征,冬季最高,秋季次之,春季低于秋季,夏季最轻。Based on the meteorological data of ground observation stations in Sichuan Province from 1980 to 2014,the spatial and temporal variations of haze are analyzed.The results show the high value area of haze was mainly distributed in the Sichuan Basin.There were few haze days in the western Sichuan Plateau and Panxi Area.The severe haze days were mainly distributed in the central and eastern parts of the Sichuan Basin,and the annual average maximum value of moderate haze days was 40 days,which occurred in Zigong.Mild haze days changed little with time and occurred most frequently.The variations of severe haze days were very similar to that of the moderate haze days,which showed a fluctuation change from 1980 to 2014,reached the peak in 1992 and then showed a decline trend.The occurrence of haze had significant seasonal characteristics,with the highest in winter,followed by autumn,spring and summer in sequence.

关 键 词：四川 霾 时空分布 

分 类 号：X16[环境科学与工程—环境科学]