Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-4897-2018 |
Mixing layer height on the North China Plain and meteorological evidence of serious air pollution in southern Hebei | |
Zhu, Xiaowan1,2; Tang, Guiqian1; Guo, Jianping3,4; Hu, Bo1; Song, Tao1; Wang, Lili1; Xin, Jinyuan1; Gao, Wenkang1; Muenkel, Christoph5; Schafer, Klaus6; Li, Xin1,7; Wang, Yuesi1 | |
2018-04-11 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:7页码:4897-4910 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany |
英文摘要 | To investigate the spatiotemporal variability of the mixing layer height (MLH) on the North China Plain (NCP), multi-site and long-term observations of the MLH with ceilometers at three inland stations (Beijing, BJ; Shijiazhuang, SJZ; Tianjin, TJ) and one coastal site (Qinhuangdao) were conducted from 16 October 2013 to 15 July 2015. The MLH of the inland stations in the NCP were highest in summer and lowest in winter, while the MLH on the coastal area of Bohai was lowest in summer and highest in spring. As a typical site in southern Hebei, the annual mean of the MLH at SJZ was 464 +/- 183 m, which was 15.0 and 21.9% lower than that at the BJ (594 +/- 183 m) and TJ (546 +/- 197 m) stations, respectively. Investigation of the shear term and buoyancy term in the NCP revealed that these two parameters in southern Hebei were 2.8 times lower and 1.5 times higher than that in northern NCP within 0-1200m in winter, respectively, leading to a 1.9-fold higher frequency of the gradient Richardson number > 1 in southern Hebei compared to the northern NCP. Furthermore, combined with aerosol optical depth and PM2.5 observations, we found that the pollutant column concentration contrast (1.2 times) between these two areas was far less than the near-ground PM2.5 concentration contrast (1.5 times). Through analysis of the ventilation coefficient in the NCP, the near-ground heavy pollution in southern Hebei mainly resulted from the lower MLH and wind speed. Therefore, due to the importance of unfavorable weather conditions, heavily polluting enterprises should be relocated and strong emission reduction measures should be introduced to improve the air quality in southern Hebei. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429738000001 |
WOS关键词 | PLANETARY BOUNDARY-LAYER ; MIXED-LAYER ; SURFACE OZONE ; BLACK CARBON ; LIDAR ; CEILOMETER ; TRENDS ; IMPACT ; POLLUTANTS ; RADIOSONDE |
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/26201 |
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 Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China; 4.Chinese Acad Meteorol Sci, Key Lab Atmospher Chem CMA, Beijing 100081, Peoples R China; 5.Vaisala GmbH, D-22607 Hamburg, Germany; 6.CUIT, Atmospher Sci Coll, Chengdu 610225, Sichuan, Peoples R China; 7.China Assoc Promoting Democracy, Beijing Municipal Comm, Beijing 100035, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu, Xiaowan,Tang, Guiqian,Guo, Jianping,et al. Mixing layer height on the North China Plain and meteorological evidence of serious air pollution in southern Hebei[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(7):4897-4910. |
APA | Zhu, Xiaowan.,Tang, Guiqian.,Guo, Jianping.,Hu, Bo.,Song, Tao.,...&Wang, Yuesi.(2018).Mixing layer height on the North China Plain and meteorological evidence of serious air pollution in southern Hebei.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(7),4897-4910. |
MLA | Zhu, Xiaowan,et al."Mixing layer height on the North China Plain and meteorological evidence of serious air pollution in southern Hebei".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.7(2018):4897-4910. |
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