Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-5899-2020 |
Integrated impacts of synoptic forcing and aerosol radiative effect on boundary layer and pollution in the Beijing-Tianjin-Hebei region, China | |
Miao, Yucong1,2; Che, Huizheng1,2; Zhang, Xiaoye1,2; Liu, Shuhua3 | |
2020-05-18 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:9页码:5899-5909 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Rapid urbanization and industrialization have led to deterioration of air quality in the Beijing-Tianjin-Hebei (BTH) region due to high loadings of PM2.5. Heavy aerosol pollution frequently occurs in winter, in close relation to the planetary boundary layer (PBL) meteorology. To unravel the physical processes that influence PBL structure and aerosol pollution in BTH, this study combined long-term observational data analyses, synoptic pattern classification, and meteorology-chemistry coupled simulations. During the winter of 2017 and 2018, Beijing and Tangshan often experienced heavy PM2.5 pollution simultaneously, accompanied by strong thermal inversion aloft. These concurrences of pollution in different cities were primarily regulated by the large-scale synoptic conditions. Using principal component analysis with geopotential height fields at the 850 hPa level during winter, two typical synoptic patterns associated with heavy pollution in BTH were identified. One pattern is characterized by a southeast-to-north pressure gradient across BTH, and the other is associated with high pressure in eastern China. Both synoptic types feature warmer air temperature at 1000 m a.g.l., which could suppress the development of the PBL. Under these unfavorable synoptic conditions, aerosols can modulate PBL structure through the radiative effect, which was examined using numerical simulations. The aerosol radiative effect can significantly lower the daytime boundary layer height through cooling the surface layer and heating the upper part of the PBL, leading to the deterioration of air quality. This PBL-aerosol feedback is sensitive to the aerosol vertical structure, which is more effective when the synoptic pattern can distribute more aerosols to the upper PBL. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535283700002 |
WOS关键词 | AIR-QUALITY ; EXPLOSIVE GROWTH ; PM2.5 POLLUTION ; METEOROLOGICAL FACTORS ; AMBIENT PM2.5 ; LOESS PLATEAU ; BLACK CARBON ; MODEL ; HAZE ; PATTERNS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/267548 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China; 2.Chinese Acad Meteorol Sci, Key Lab Atmospher Chem CMA, Beijing 100081, Peoples R China; 3.Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China |
推荐引用方式 GB/T 7714 | Miao, Yucong,Che, Huizheng,Zhang, Xiaoye,et al. Integrated impacts of synoptic forcing and aerosol radiative effect on boundary layer and pollution in the Beijing-Tianjin-Hebei region, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(9):5899-5909. |
APA | Miao, Yucong,Che, Huizheng,Zhang, Xiaoye,&Liu, Shuhua.(2020).Integrated impacts of synoptic forcing and aerosol radiative effect on boundary layer and pollution in the Beijing-Tianjin-Hebei region, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(9),5899-5909. |
MLA | Miao, Yucong,et al."Integrated impacts of synoptic forcing and aerosol radiative effect on boundary layer and pollution in the Beijing-Tianjin-Hebei region, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.9(2020):5899-5909. |
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