Observing the impact of urban morphology and building geometry on thermal environment by high spatial resolution thermal images
Observing the impact of urban morphology and building geometry on thermal environment by high spatial resolution thermal images
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通过高空间分辨率热图像观察城市形态和建筑几何形状对热环境的影响
DOI：
10.1016/j.uclim.2021.100937
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发表时间：
2021-09
期刊：
影响因子：
6.4
通讯作者：
Xu Yong
中科院分区：
文献类型：
--
作者：
Yang Jinxin;Shi Qian;Menenti Massimo;Wong Man Sing;Wu Zhifeng;Zhao Qunshan;Abbas Sawaid;Xu Yong
城市地表温度是观测和理解能量交换的一个重要变量。全面认识城市热环境对城市对气候灾害的适应性具有重要意义。城市空间的异质性增加了城市地表温度观测和能量交换分析的复杂性。为了了解城市几何形态对地表温度分布的影响，我们使用了非常高空间分辨率的航空热红外遥感图像（原始空间分辨率为0.2 m × 0.2 m）。我们在香港进行了这项研究，分析了各种几何参数在白天和夜间以及不同季节对不同表面温度（屋顶、道路、墙壁和植被）的影响。结果表明：城市几何参数对路面温度的影响大于对建筑温度的影响，且几何参数对路面温度的影响随时间和季节的变化而变化。建筑物的高度在白天比夜间对屋顶的散热更有效。较低的建筑密度有利于地面散热，较高的建筑密度有利于屋面散热。此外，植被对低于植被的地表温度的影响有限，但在一定程度上有助于降低城市温度，这可能是城市设计中相关的特征。这项研究可以为城市规划者和决策者提供有用的见解，以更好地了解城市热环境，并有助于在不久的将来设计更宜居和健康的城市。
Urban surface temperature is a very important variable in the observation and understanding of energy exchange. A comprehensive understanding of the urban thermal environment is of great significance towards the adaptability of urban areas to climate hazards. The heterogeneity of urban space increases the complexity of the urban surface temperature observations and the analyses of the energy exchange. To understand how the urban geometry affects the distribution of surface temperature, we used airborne thermal infrared remotely sensed images at very high spatial resolution (original spatial resolution is 0.2 m × 0.2 m after registration). We did this study in Hong Kong to analyze the effects of various geometric parameters on different facet surface temperatures (roof, road, wall and vegetation) in daytime and nighttime and in different seasons. Results show that the urban geometry has greater impacts on the road temperature than on building temperature, and the impact of the geometric parameters on road surface temperature changes with the time of the day and the season. The building height is a more effective driver of heat dissipation in daytime than nighttime for roof facets. A lower building density improves ground heat dissipation, while a higher building density improves heat dissipation by roof facets. Furthermore, the vegetation only limitedly affects the surface temperatures of facets that are lower than vegetation, but to an extent useful to mitigate urban temperature, which might be a feature relevant in urban design. This research can provide insights useful to city planners and policy makers to better understand the urban thermal environment and help design more livable and healthy cities in the near future.
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影响因子：
13.5
作者：
William Morrison;S. Kotthaus;C. Grimmond;A. Inagaki;T. Yin;J. Gastellu-Etchegorry;M. Kanda;C. Me
通讯作者：
William Morrison;S. Kotthaus;C. Grimmond;A. Inagaki;T. Yin;J. Gastellu-Etchegorry;M. Kanda;C. Me
模拟稀疏城市表面热各向异性的几何模型（GUTA-稀疏）
影响因子：
13.5
作者：
Wang D;an;Chen Yunhao;Zhan Wenfeng
通讯作者：
Zhan Wenfeng
使用完整温度和最低温度评估城市几何形状对城市表面热岛的影响
DOI：
10.1002/joc.6919
发表时间：
2020-11
期刊：
International Journal of Climatology
影响因子：
--
作者：
Yang Jinxin;Menenti Massimo;Wu Zhifeng;Wong Man Sing;Abbas Sawaid;Xu Yong;Shi Qian
通讯作者：
Shi Qian
影响因子：
4.3
作者：
M. Kanda;T. Kawai;M. Kanega;R. Moriwaki;K. Narita;A. Hagishima
通讯作者：
M. Kanda;T. Kawai;M. Kanega;R. Moriwaki;K. Narita;A. Hagishima
根据辐射表面温度估算完整表面温度的半经验方法，香港城市的一项研究
影响因子：
13.5
作者：
Yang Jinxin;Wong Man Sing;Ho Hung Chak;Krayenhoff E. Scott;Chan P. W.;Abbas Sawaid;Menenti Massimo
通讯作者：
Menenti Massimo