为了对室外人居环境进行良好的预测和评价,克服CFD数值模拟等其他模拟方法在解决城市气候图问题时存在的局限性,该研究采用已研发的多用途建筑区域热气候评价模型,以深圳国际低碳城热环境为对象,针对夏季最热月情况初步形成区域热环境城市气候图。该文结合规划专业技术,对空间参数和下垫面信息进行归纳和简化,讨论了区域内夏季不同室外环境参数气候图的分布规律和彼此的相关性,分析了城市气候图中差异性较大地区的主要成因并提出宜采取的相应改善措施。研究结果表明:深圳国际低碳城内部建筑和人员活动密集的中部区域和林地为主的周边区域呈现出截然不同的热气候规律,前者比后者气温高约3.5℃,含湿量低1 g/kg左右,人为排热量密集的地块可达到160 W/m^2以上;热舒适性指标SET*在中部区域呈现出相对较低的水平,平均比周边区域低1.5℃左右,但部分局部地块超过了30℃,需要进一步从规划的角度优化自然资源配置,调整建筑布局。
The research has established the region hot climate urban climate map preliminarily with adoption of developed multipurpose building region hot climate evaluation model according to the hottest condition in summer.The research takes Shenzhen International low carbon city as example in order to conduct good predication and evaluation on the outdoor living environment and overcome limitations in solving the problems of urban climate map when use other simulation methods such as computational fluid dynamics( CFD) value simulation,etc. Combined with planning professional technology,the spatial parameters and underlying surface information are summarized and simplified; the main reasons for the large difference of regions in the urban climate map are analyzed and the corresponding improvement measures are proposed in this paper. The research results indicate that: hot climate laws in central area with intensive buildings and personnel activities and peripheral zone covered with forest mainly are totally different inside Shenzhen International low carbon city. Temperature in the former one is about 3. 5 ℃ higher than that in the latter one above,and specific weight of water vapor is 1 g / kg lower than the latter one. In the intensive region,the anthropogenic heat can reach to more than 160 W / m^2. The outdoor thermal comfort index SET*in the central area shows a relatively low level with 1. 5 ℃( 30 ℃ in partial zone) lower than the peripheral zone. Natural resources configuration needs to be optimized further from the planning aspect,and the building structure needs adjustment.