Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-45-2020 |
Rapid formation of intense haze episodes via aerosol-boundary layer feedback in Beijing | |
Wang, Yonghong1,2; Yu, Miao3; Wang, Yuesi1,6; Tang, Guiqian1; Song, Tao1; Zhou, Putian2; Liu, Zirui1; Hu, Bo1; Ji, Dongsheng1; Wang, Lili1; Zhu, Xiaowan1; Yan, Chao2; Ehn, Mikael2; Gao, Wenkang1; Pan, Yuepeng1; Xin, Jinyuan1,6; Sun, Yang1; Kerminen, Veli-Matti2; Kulmala, Markku2,4,5; Petaja, Tuukka2,4,5 | |
2020-01-03 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:1页码:45-53 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Finland |
英文摘要 | Although much effort has been put into studying air pollution, our knowledge of the mechanisms of frequently occurring intense haze episodes in China is still limited. In this study, using 3 years of measurements of air pollutants at three different height levels on a 325m Beijing meteorology tower, we found that a positive aerosol-boundary layer feedback mechanism existed at three vertical observation heights during intense haze polluted periods within the mixing layer. This feedback was characterized by a higher loading of PM2.5 with a shallower mixing layer. Modelling results indicated that the presence of PM2.5 within the boundary layer led to reduced surface temperature, relative humidity and mixing layer height during an intensive haze episode. Measurements showed that the aerosol-boundary layer feedback was related to the decrease in solar radiation, turbulent kinetic energy and thereby suppression of the mixing layer. The feedback mechanism can explain the rapid formation of intense haze episodes to some extent, and we suggest that the detailed feedback mechanism warrants further investigation from both model simulations and field observations. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000505676600001 |
WOS关键词 | AIR-POLLUTION ; IMPACT ; PARAMETERIZATION ; EVOLUTION ; HEIGHT ; WINTER |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/278552 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 2.Univ Helsinki, Inst Atmospher & Earth Syst Res Phys, Fac Sci, POB 64, FIN-00014 Helsinki, Finland; 3.China Meteorol Adm, Inst Urban Meteorol, Beijing, Peoples R China; 4.Nanjing Univ, Joint Int Res Lab Atmospher & Earth Syst Sci JirL, Nanjing, Jiangsu, Peoples R China; 5.BUCT, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Aerosol & Haze Lab, Beijing, Peoples R China; 6.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Atmospher Urban Environm, Xiamen 361021, Fujian, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Yonghong,Yu, Miao,Wang, Yuesi,et al. Rapid formation of intense haze episodes via aerosol-boundary layer feedback in Beijing[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(1):45-53. |
APA | Wang, Yonghong.,Yu, Miao.,Wang, Yuesi.,Tang, Guiqian.,Song, Tao.,...&Petaja, Tuukka.(2020).Rapid formation of intense haze episodes via aerosol-boundary layer feedback in Beijing.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(1),45-53. |
MLA | Wang, Yonghong,et al."Rapid formation of intense haze episodes via aerosol-boundary layer feedback in Beijing".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.1(2020):45-53. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论