globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50704
论文题名:
Modeling the influence of open water surfaces on the summertime temperature and thermal comfort in the city
作者: Theeuwes N.E.; Solcerová A.; Steeneveld G.J.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:16
起始页码: 8881
结束页码: 8896
语种: 英语
Scopus关键词: Climate change ; High temperature effects ; Lakes ; Rural areas ; Temperature ; Air temperature ; Global urbanization ; Mesoscale meteorological model ; Open water surface ; Spatial configuration ; Surface radiation ; Urban heat island ; Urban Heat Island Effects ; Thermal comfort ; air temperature ; brightness temperature ; climate change ; climate modeling ; cooling ; energy balance ; euxinic environment ; heat island ; humidity ; mesoscale meteorology ; numerical model ; open water ; rural area ; summer ; surface water ; temperature effect ; urbanization ; wind direction
英文摘要: Due to the combination of rapid global urbanization and climate change, urban climate issues are becoming relatively more important and are gaining interest. Compared to rural areas, the temperature in cities is higher (the urban heat island effect) due to the modifications in the surface radiation and energy balances. This study hypothesizes that the urban heat island can be mitigated by introducing open surface water in urban design. In order to test this, we use theWRF mesoscale meteorological model in which an idealized circular city is designed. Herein, the surface water cover, its size, spatial configuration, and temperature are varied. Model results indicate that the cooling effect of water bodies depends nonlinearly on the fractional water cover, size, and distribution of individual lakes within the city with respect to wind direction. Relatively large lakes show a high temperature effect close to their edges and in downwind areas. Several smaller lakes equally distributed within the urban area have a smaller temperature effect, but influence a larger area of the city. Evaporation from open water bodies may lower the temperature, but on the other hand also increases the humidity, which dampens the positive effect on thermal comfort. In addition, when the water is warmer than the air temperature (during autumn or night), the water body has an adverse effect on thermal comfort. In those cases, the water body eventually limits the cooling and thermal comfort in the surrounding city, and thus diverges from the original intention of the intervention. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63381
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Meteorology and Air Quality Section, Wageningen University, PO box 47, Wageningen, NL-6700 AA, Netherlands

Recommended Citation:
Theeuwes N.E.,Solcerová A.,Steeneveld G.J.. Modeling the influence of open water surfaces on the summertime temperature and thermal comfort in the city[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(16)
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