| Impacts of sea-land and mountain-valley circulations on the air pollution in Beijing-Tianjin-Hebei (BTH): A case study | |
| Bei, Naifang1,2; Zhao, Linna3; Wu, Jiarui2; Li, Xia2; Feng, Tian2; Li, Guohui2 | |
| 2018-03-01 | |
| 发表期刊 | ENVIRONMENTAL POLLUTION
 |
| 卷号 | 234期号:2018页码:429-438 |
| 文章类型 | Article |
| 摘要 | In the study, observational data analyses and the WRF-CHEM model simulations are used to investigate the role of sea-land and mountain-valley breeze circulations in a severe air pollution event occurred in Beijing-Tianjin-Hebei (BTH) during August 9-10, 2013. Both the wind observations and the model simulations have clearly indicated the evolution of the sea-land and mountain-valley breeze circulations during the event. The WRF-CHEM model generally reproduces the local meteorological circulations and also performs well in simulating temporal variations and spatial distributions of fine particulate matters (PM2.5) and ozone (O-3) concentrations compared to observations in BTH. The model results have shown that the offshore land breeze transports the pollutants formed in Shandong province to the Bohai Gulf in the morning, causing the formation of high O-3 and PM2.5 concentrations over the gulf. The onshore sea breeze not only causes the formation of a convergence zone to induce upward movement, mitigating the surface pollution to some degree, also recirculates the pollutants over the gulf to deteriorate the air quality in the coastal area. The upward valley breeze brings the pollutants in the urban area of Beijing to the mountain area in the afternoon, and the downward mountain breeze transports the pollutants back during nighttime. The intensity of the mountain-valley breeze circulation is weak compared to the land-sea breeze circulation in BTH. It is worth noting that the local circulations play an important role when the large-scale meteorological conditions are relatively weak. (C) 2017 Elsevier Ltd. All rights reserved. |
| 关键词 | Breeze Pm2.5 Ozone |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.envpol.2017.11.066 |
| 关键词[WOS] | MEXICO-CITY BASIN ; HONG-KONG ; METEOROLOGICAL CONDITIONS ; GUANZHONG BASIN ; CLEAN-AIR ; CHINA ; TRANSPORT ; PATTERNS ; MODEL ; HAZE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:000426225100044 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5189 |
| 专题 | 粉尘与环境研究室 |
| 作者单位 | 1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Shaanxi, Peoples R China 3.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bei, Naifang,Zhao, Linna,Wu, Jiarui,et al. Impacts of sea-land and mountain-valley circulations on the air pollution in Beijing-Tianjin-Hebei (BTH): A case study[J]. ENVIRONMENTAL POLLUTION,2018,234(2018):429-438. |
| APA | Bei, Naifang,Zhao, Linna,Wu, Jiarui,Li, Xia,Feng, Tian,&Li, Guohui.(2018).Impacts of sea-land and mountain-valley circulations on the air pollution in Beijing-Tianjin-Hebei (BTH): A case study.ENVIRONMENTAL POLLUTION,234(2018),429-438. |
| MLA | Bei, Naifang,et al."Impacts of sea-land and mountain-valley circulations on the air pollution in Beijing-Tianjin-Hebei (BTH): A case study".ENVIRONMENTAL POLLUTION 234.2018(2018):429-438. |
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| Impacts of sea-land （5052KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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