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


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
頁次347 - 362

上次更新時間 2021-18-09 於 23:48