Impact of aerosols on radiation during a heavy haze event in Beijing

35th International Symposium on Remote Sensing of Environment

地球科学;生态环境科学

Yan, Wang^1 ; Zhengqiang, Li^1 ; Ying, Zhang^1 ; Qiang, Wang^2 ; Jianzhong, Ma^2

State Environmental Protection Key Laboratory of Satellite Remote Sensing, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China^1

Chinese Meteorological Administration Training Center, CMA, Beijing 100081, China^2

关键词: Aerosol mass concentration;    Anthropogenic aerosols;    Different layers;    PM10 and PM2.5;    PM10 concentration;    Urban boundary layers;    Weak winds;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/17/1/012012/pdf
DOI  :  10.1088/1755-1315/17/1/012012

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to understand the influence of anthropogenic aerosols on radiation in the urban boundary layer, we measured atmospheric aerosol mass concentrations (PM10and PM2.5), integrated solar radiation, wind and temperature at different layers of a 325-m iron tower. A typical heavy haze process occurring during the period of October 2004 was analyzed. It is observed that the inversion layer and the weak wind was the most important factor causing the accumulation of pollutants. The results show that the PM10concentrations under polluted day conditions is about 84 times (537.1μgm-3) higher than those on clear weather conditions (6.4μgm-3). The difference in the solar radiation between 2m and 280m became smaller (93.07 Wm-2to 16.07 Wm-2) when pollution turned heavy, while the attenuations rate changed large (16.76% to 20.96%).