Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-14239-2017 |
Spatiotemporal distribution of nitrogen dioxide within and around a large-scale wind farm - a numerical case study | |
Mo, Jingyue1,2; Huang, Tao1; Zhang, Xiaodong1; Zhao, Yuan1; Liu, Xiao2; Li, Jixiang1,2; Gao, Hong1; Ma, Jianmin1,3,4 | |
2017-12-01 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | As a renewable and clean energy source, wind power has become the most rapidly growing energy resource worldwide in the past decades. Wind power has been thought not to exert any negative impacts on the environment. However, since a wind farm can alter the local meteorological conditions and increase the surface roughness lengths, it may affect air pollutants passing through and over the wind farm after released from their sources and delivered to the wind farm. In the present study, we simulated the nitrogen dioxide (NO2) air concentration within and around the world's largest wind farm (Jiuquan wind farm in Gansu Province, China) using a coupled meteorology and atmospheric chemistry model WRF-Chem. The results revealed an "edge effect", which featured higher NO2 levels at the immediate upwind and border region of the wind farm and lower NO2 concentration within the wind farm and the immediate downwind transition area of the wind farm. A surface roughness length scheme and a wind turbine drag force scheme were employed to parameterize the wind farm in this model investigation. Modeling results show that both parameterization schemes yield higher concentration in the immediate upstream of the wind farm and lower concentration within the wind farm compared to the case without the wind farm. We infer this edge effect and the spatial distribution of air pollutants to be the result of the internal boundary layer induced by the changes in wind speed and turbulence intensity driven by the rotation of the wind turbine rotor blades and the enhancement of surface roughness length over the wind farm. The step change in the roughness length from the smooth to rough surfaces (overshooting) in the upstream of the wind farm decelerates the atmospheric transport of air pollutants, leading to their accumulation. The rough to the smooth surface (undershooting) in the downstream of the wind farm accelerates the atmospheric transport of air pollutants, resulting in lower concentration level. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416844800001 |
WOS关键词 | ATMOSPHERIC BOUNDARY-LAYER ; WRF MODEL ; IMPACTS ; SENSITIVITY ; EMISSIONS ; TURBINE ; REGION |
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/27330 |
专题 | 地球科学 |
作者单位 | 1.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Environm Pollut Predict & Control, Lanzhou, Gansu, Peoples R China; 2.Lanzhou Univ, Coll Atmospher Sci, Lanzhou, Gansu, Peoples R China; 3.Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Beijing, Peoples R China; 4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Mo, Jingyue,Huang, Tao,Zhang, Xiaodong,et al. Spatiotemporal distribution of nitrogen dioxide within and around a large-scale wind farm - a numerical case study[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(23). |
APA | Mo, Jingyue.,Huang, Tao.,Zhang, Xiaodong.,Zhao, Yuan.,Liu, Xiao.,...&Ma, Jianmin.(2017).Spatiotemporal distribution of nitrogen dioxide within and around a large-scale wind farm - a numerical case study.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(23). |
MLA | Mo, Jingyue,et al."Spatiotemporal distribution of nitrogen dioxide within and around a large-scale wind farm - a numerical case study".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.23(2017). |
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