中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The contribution of urbanization to recent extreme heat events and a potential mitigation strategy in the Beijing-Tianjin-Hebei metropolitan area

文献类型:SCI/SSCI论文

作者Wang M. N. ; Yan X. D. ; Liu J. Y. ; Zhang X. Z.
发表日期2013
关键词boundary-layer structures air-temperature near-surface human health china island weather trends impact city
英文摘要This paper addresses the contribution of urban land use change to near-surface air temperature during the summer extreme heat events of the early twenty-first century in the Beijing-Tianjin-Hebei metropolitan area. This study uses the Weather Research Forecasting model with a single urban canopy model and the newest actual urban cover datasets. The results show that urban land use characteristics that have evolved over the past similar to 20 years in the Beijing-Tianjin-Hebei metropolitan area have had a significant impact on the extreme temperatures occurring during extreme heat events. Simulations show that new urban development has caused an intensification and expansion of the areas experiencing extreme heat waves with an average increase in temperature of approximately 0.60 A degrees C. This change is most obvious at night with an increase up to 0.95 A degrees C, for which the total contribution of anthropogenic heat is 34 %. We also simulate the effects of geo-engineering strategies increasing the albedo of urban roofs, an effective way of reducing urban heat island, which can reduce the urban mean temperature by approximately 0.51 A degrees C and counter approximately 80 % of the heat wave results from urban sprawl during the last 20 years.
出处Theoretical and Applied Climatology
114
3-4
407-416
收录类别SCI
语种英语
ISSN号0177-798X
源URL[http://ir.igsnrr.ac.cn/handle/311030/30199]  
专题地理科学与资源研究所_历年回溯文献
推荐引用方式
GB/T 7714
Wang M. N.,Yan X. D.,Liu J. Y.,et al. The contribution of urbanization to recent extreme heat events and a potential mitigation strategy in the Beijing-Tianjin-Hebei metropolitan area. 2013.

入库方式: OAI收割

来源:地理科学与资源研究所

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