The surface energy balance and boundary layer over urban street canyons
The surface energy balance and boundary layer over urban street canyons
复制标题
城市街道峡谷的表面能量平衡和边界层
DOI：
10.1256/qj.05.185
复制
发表时间：
2006
影响因子：
8.9
通讯作者：
S. Belcher
中科院分区：
文献类型：
--
作者：
I. Harman;S. Belcher
为城市地区的能量平衡开发了一个模型，表示为一系列二维街道峡谷。该模型采用了一种新颖的显热通量公式（之前已针对风洞模型进行了验证）以及一种包括多次反射和阴影的辐射公式。该能量平衡模型与大气边界层模型耦合。对结果进行分析，以确定物理过程如何结合起来产生城市气候的观测特征，并确定建筑形式和结构在城市气候改变中的作用。
A model is developed for the energy balance of an urban area, represented as a sequence of two‐dimensional street canyons. The model incorporates a novel formulation for the sensible‐heat flux, that has previously been validated against wind tunnel models, and a formulation for radiation that includes multiple reflections and shadowing. This energy balance model is coupled to a model for the atmospheric boundary layer. Results are analysed to establish how the physical processes combine to produce the observed features of urban climate, and to establish the roles of building form and fabric on the urban modification to climate.