滨州市一次持续性雾霾天气过程分析

Analysis of a Long-lasting Fog and Haze Event in Binzhou

本文利用常规气象资料、章丘探空资料、济南站微波辐射计探测资料和NCEP再分析资料对2015年12月19?24日滨州市一次持续性雾霾天气的环流背景、气象要素和气团轨迹综合分析。结果表明:500 hPa中高纬为平直的纬向环流,冷空气较弱,大气层结稳定少动是这次持续雾霾过程的环流背景;PM2.5浓度与能见度和地面风速呈显著地相关关系;这次雾霾过程中大气层结的显著特征是出现逆温层;影响滨州的外来污染物输送路径主要有3条。

Using the conventional meteorological records,sounding data in Zhangqiu station,microwave radiometer observations in Ji'nan and the NCEP reanalysis data,a long-lasting fog and haze event was analyzed from its weather background,weather conditions and the sources of pollution which occurred in Binzhou from December 19 to 24,2015.The findings are as follows:the zonal circulation in the middle-high latitude at 500 hPa was straight and the weak cold air were the weather situations of the long-lasting fog and haze event;the PM2.5 concentration,the visibility and the surface wind were correlated;the most significant characteristic was the inversion of this fog and haze event;there were three main routs of the external pollution conveyor belt in this fog and haze event in Binzhou.