Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, China
We replaced the outdated land-use of the Weather Research and Forecasting-Chemistry (WRF-Chem) model with a refined dataset, the Global Land Cover 2009 (GLC2009) dataset, to investigate the impact of land-use change on the regional atmospheric environment in the Pearl River Delta (PRD) region. Simul...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2016/3830592 |
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| author | Anqi Lai Yiming Liu Xiaoyang Chen Ming Chang Qi Fan Pakwai Chan Xuemei Wang Jianing Dai |
| author_facet | Anqi Lai Yiming Liu Xiaoyang Chen Ming Chang Qi Fan Pakwai Chan Xuemei Wang Jianing Dai |
| author_sort | Anqi Lai |
| collection | DOAJ |
| description | We replaced the outdated land-use of the Weather Research and Forecasting-Chemistry (WRF-Chem) model with a refined dataset, the Global Land Cover 2009 (GLC2009) dataset, to investigate the impact of land-use change on the regional atmospheric environment in the Pearl River Delta (PRD) region. Simulations of two months in 2014 (January and July) showed that land-use change increased the monthly averaged 2 m temperature by 0.24°C and 0.27°C in January and July, respectively. The relative humidity decreased by 2.02% and 2.23% in January and July, respectively. Due to the increase in ground roughness, the monthly averaged wind speed in January and July decreased by 0.19 m/s and 0.16 m/s. The planetary boundary layer height increased throughout the day and with larger relative increase during the nighttime. These subtle changes caused by land-use resulted in discernable changes in pollutant concentrations. Monthly averaged surface O3 concentration increased by 0.93 µg/m3 and 1.61 µg/m3 in January and July, while PM2.5 concentration decreased by 1.58 µg/m3 and 3.76 µg/m3, and the changes in pollutant concentrations were more noticeable during the nighttime. Overall, the impacts of land-use change on the atmospheric environment are obvious throughout the PRD region, especially in the urbanized areas. |
| format | Article |
| id | doaj-art-e0ac680884cd46d9b99efaccd89864a4 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-e0ac680884cd46d9b99efaccd89864a42025-02-03T05:51:34ZengWileyAdvances in Meteorology1687-93091687-93172016-01-01201610.1155/2016/38305923830592Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, ChinaAnqi Lai0Yiming Liu1Xiaoyang Chen2Ming Chang3Qi Fan4Pakwai Chan5Xuemei Wang6Jianing Dai7School of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, ChinaHong Kong Observatory, Tsim Sha Tsui 999077, Hong KongSchool of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, ChinaWe replaced the outdated land-use of the Weather Research and Forecasting-Chemistry (WRF-Chem) model with a refined dataset, the Global Land Cover 2009 (GLC2009) dataset, to investigate the impact of land-use change on the regional atmospheric environment in the Pearl River Delta (PRD) region. Simulations of two months in 2014 (January and July) showed that land-use change increased the monthly averaged 2 m temperature by 0.24°C and 0.27°C in January and July, respectively. The relative humidity decreased by 2.02% and 2.23% in January and July, respectively. Due to the increase in ground roughness, the monthly averaged wind speed in January and July decreased by 0.19 m/s and 0.16 m/s. The planetary boundary layer height increased throughout the day and with larger relative increase during the nighttime. These subtle changes caused by land-use resulted in discernable changes in pollutant concentrations. Monthly averaged surface O3 concentration increased by 0.93 µg/m3 and 1.61 µg/m3 in January and July, while PM2.5 concentration decreased by 1.58 µg/m3 and 3.76 µg/m3, and the changes in pollutant concentrations were more noticeable during the nighttime. Overall, the impacts of land-use change on the atmospheric environment are obvious throughout the PRD region, especially in the urbanized areas.http://dx.doi.org/10.1155/2016/3830592 |
| spellingShingle | Anqi Lai Yiming Liu Xiaoyang Chen Ming Chang Qi Fan Pakwai Chan Xuemei Wang Jianing Dai Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, China Advances in Meteorology |
| title | Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, China |
| title_full | Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, China |
| title_fullStr | Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, China |
| title_full_unstemmed | Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, China |
| title_short | Impact of Land-Use Change on Atmospheric Environment Using Refined Land Surface Properties in the Pearl River Delta, China |
| title_sort | impact of land use change on atmospheric environment using refined land surface properties in the pearl river delta china |
| url | http://dx.doi.org/10.1155/2016/3830592 |
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