The impact of urbanization on air stagnation: Shenzhen as case study
Publication in refereed journal

香港中文大學研究人員
替代計量分析
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其它資訊
摘要One of the most concerning, consequences arising from the dramatic urbanization in cities is air stagnation and the related high concentration of air pollutants. Many studies have investigated the impact of urbanization on air stagnation, but few have systematically evaluated such impact and its spatial-temporal variances at the municipal scale. This study proposed an approach based on high-resolution urban climate simulations for evaluating the impact of urbanization on air stagnation. We took the city of Shenzhen in south-eastern China, a city that grew from a small fishing and farming village to a highly urbanized city in the past thirty years, as a compelling case study. Using the WRF/Noah LSM/SLUCM model, we simulated and evaluated the probability of 6-hourly air stagnation cases (ASCs) in 1979 and 2010 at the spatial resolution of 1-km(2) to demonstrate the change over a thirty-year period. Comparison results show that urbanization worsened the problem of air stagnation in Shenzhen. The number of 6-hourly ASCs has increased by 21,700 for the entire Shenzhen, and by 11.4 on average for each grid with a 1 km(2) size. A maximum increase of 458 ASCs in a grid was also observed.
著者Zhiqiang Li, Yulun Zhou, Bingcheng Wan, Qinxin Chen, Bo Huang, Yuanzheng Cui, Hopun Chung
期刊名稱Science of the Total Environment
出版年份2019
月份5
卷號664
出版社Elsevier
頁次347 - 362
國際標準期刊號0048-9697
電子國際標準期刊號1879-1026
語言美式英語

上次更新時間 2020-01-08 於 01:56