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题名: Horizontal Heat Impact of Urban Structures on the Surface Soil Layer and Its Diurnal Patterns under Different Micrometeorological Conditions
作者: Zhou, Hongxuan; Hu, Dan; Wang, Xiaolin; Han, Fengsen; Li, Yuanzheng; Wu, Xiaogang; Ma, Shengli
刊名: SCIENTIFIC REPORTS
出版日期: 2016-01-05
卷号: 6, 页码:-
DOI: 10.1038/srep18790
部门归属: 城市与区域生态国家重点实验室
英文摘要: The temperature of the surface soil layer around different orientation walls was investigated horizontally along several construction-soil micro-gradients in Beijing, China. On a diurnal scale, similar fluctuating trends in T-0 and T-50 (temperature of surface soil layer, 0 and 0.5 m from the building baseline) adjacent to the external walls of buildings with the same orientation usually appeared under similar micrometeorological conditions. The difference between T-0 and T-50 (Delta T0-50) can be considered an indicator of the intensity of the horizontal heat effects: higher Delta T0-50 values correspond to greater intensities. The values of Delta T0-50 for south-, north-, east-and west-facing sides of buildings were highest on sunny days in summer and exhibited values of 6.61 K, 1.64 K, 5.93 K and 2.76 K, respectively. The scope of horizontal heat impacts (S-h) changed on a diurnal scale between zero and the maximum, which fluctuated with the micrometeorological conditions. The maximum values of S-h were 0.30, 0.15, 0.20 and 0.20 m for south-, north-, east-, and west-facing walls. The Delta T0-50 was related to solar radiation, horizontal heat flux, relative humidity, wind speed, soil moisture differences and air temperature; the relative importance of these factors was 36.22%, 31.80%, 19.19%, 2.67%, 3.68% and 6.44%, respectively.
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35599
Appears in Collections:城市与区域生态国家重点实验室_期刊论文

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