IEECAS OpenIR  > 粉尘与环境研究室
Analysis of the causes of heavy aerosol pollution in Beijing, China:A case study with the WRF-Chem model
He,H(He,Hui)[1]; Tie,XX(Tie,Xuexi)[2,3]; Zhang,Q(Zhang,Qiang)[1]; Liu,X(Liu,Xiang)[1]; Gao,Q(Gao,Qian)[1]; Li,X(Li,Xia)[1]; Gao,Y(Gao,Yang)[1]
2015-06
发表期刊Particuology
卷号20页码:32-40
文章类型期刊论文
摘要

The causes and variability of a heavy haze episode in the Beijing region was analyzed. During the episode, the PM2.5 concentration reached a peak value of 450 g/kg on January 18, 2013 and rapidly decreased to 100 g/kg on January 19, 2013, characterizing a large variability in a very short period. This strong variability provides a good opportunity to study the causes of the haze formation. The in situ measurements (including surface meteorological data and vertical structures of the winds, temperature, humidity, and planetary boundary layer (PBL)) together with a chemical/dynamical regional model (WRF-Chem) were used for the analysis. In order to understand the rapid variability of the PM2.5 concentration in the episode, the correlation between the measured meteorological data (including wind speed, PBL height, relative humidity, etc.) and the measured particle concentration (PM2.5 concentration) was studied. In addition, two sensitive model experiments were performed to study the effect of individual contribution from local emissions and regional surrounding emissions to the heavy haze formation. The results suggest that there were two major meteorological factors in controlling the variability of the PM2.5 concentration, namely, surface wind speed and PBL height. During high wind periods, the horizontal transport of aerosol particles played an important role, and the heavy haze was formed when the wind speeds were very weak (less than 1 m/s). Under weak wind conditions, the horizontal transport of aerosol particles was also weak, and the vertical mixing of aerosol particles played an important role. As a result, the PBL height was a major factor in controlling the variability of the PM2.5 concentration. Under the shallow PBL height, aerosol particles were strongly confined near the surface, producing a high surface PM2.5 concentration. The sensitivity model study suggests that the local emissions (emissions from the Beijing region only) were the major cause for the heavy haze events. With only local emissions, the calculated peak value of the PM2.5 concentration was 350 g/kg, which accounted for 78% of the measured peak value (450 g/kg). In contrast, without the local emissions, the calculated peak value of the PM2.5 concentration was only 100 g/kg, which accounted for 22% of the measured peak value.

关键词Pm2.5 In beijIng Causes Of Heavy Haze Planetary Boundary Layer (Pbl) Wrf-chem Model
DOI10.1016/j.partic.2014.06.004
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9493
专题粉尘与环境研究室
作者单位1.Beijing Weather Modification Office, Beijing 100089, China;
2.Key Laboratory of Aerosol Science and Technology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710049, China;
3.National Center for Atmospheric Research, Boulder, CO, USA
推荐引用方式
GB/T 7714
He,H,Tie,XX,Zhang,Q,et al. Analysis of the causes of heavy aerosol pollution in Beijing, China:A case study with the WRF-Chem model[J]. Particuology,2015,20:32-40.
APA He,H.,Tie,XX.,Zhang,Q.,Liu,X.,Gao,Q.,...&Gao,Y.(2015).Analysis of the causes of heavy aerosol pollution in Beijing, China:A case study with the WRF-Chem model.Particuology,20,32-40.
MLA He,H,et al."Analysis of the causes of heavy aerosol pollution in Beijing, China:A case study with the WRF-Chem model".Particuology 20(2015):32-40.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
MU Analysis of the c(3359KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[He,H(He,Hui)[1]]的文章
[Tie,XX(Tie,Xuexi)[2,3]]的文章
[Zhang,Q(Zhang,Qiang)[1]]的文章
百度学术
百度学术中相似的文章
[He,H(He,Hui)[1]]的文章
[Tie,XX(Tie,Xuexi)[2,3]]的文章
[Zhang,Q(Zhang,Qiang)[1]]的文章
必应学术
必应学术中相似的文章
[He,H(He,Hui)[1]]的文章
[Tie,XX(Tie,Xuexi)[2,3]]的文章
[Zhang,Q(Zhang,Qiang)[1]]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。