项目名称: 基于遥感与数值模拟交叉验证的城市公园冷岛效应影响机制研究——以深圳为例
项目编号: No.51308341
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 建筑科学
项目作者: 辜智慧
作者单位: 深圳大学
项目金额: 25万元
中文摘要: 大量研究表明城市公园存在着明显的"公园冷岛效应",对减缓城市热岛具有显著的积极作用。然而,城市公园的位置及设计参数在多大程度上影响着"公园冷岛效应"的强度及其扩散范围,还没有得到深入可靠的分析。针对现有研究方法的不足,本研究提出将大尺度的城市大气边界层特征细化为高分辨率的背景气象条件,利用长时间序列热红外遥感数据建立公园冷岛效应及其影响因子的统计模型,同时采用数值模式模拟方法进行交叉验证,以研究城市"公园冷岛效应"强度及其扩散范围的影响机制。该研究方法有助于全面理解气象因子、园内设计及外部空间环境等因素对"公园冷岛效应"强度及扩散范围的影响作用。以高速城市化发展的典型城市深圳为例,着重分析公园位置及设计参数对"公园冷岛效应"的影响,研究成果可直接用于评价和指导城市规划设计,对于优化城市公园规划选址及景观设计,改善城市热环境具有重要的理论和现实意义。
中文关键词: 公园冷岛效应;数值模拟;影响机制;遥感;交叉验证
英文摘要: Numerous studies have shown that city park has obvious "park cool island" effect, which has a significant positive effect on the mitigation of urban heat island. However, the extent of city park location and design parameters affected the strength and diffusion range of the "park cool island", has not been thoroughly and reliably analyzed. This study proposed a research method of "park cool island" effect mechanisms, by refining the large-scale urban atmospheric boundary layer into high-resolution background weather conditions, and establishing a statistical model with long time series thermal infrared remote sensing data and GIS data, and using the cross-validation of remote sensing and numerical model. This study would contribute to a comprehensive understanding of the impact of meteorological factors, the park's design and external space environment factors on the "park cool island" strength and diffusion range. Shenzhen, the typical high-speed urbanization city in China, as a case, the impact of park location and design parameters on the "park cool island" are focus of analysis. The research results could be directly used to evaluate and guide urban planning and design. This research has important theoretical and practical significance to optimize the urban park planning and landscape design, and improve the
英文关键词: Park cool island;numerical model;effect mechanism;remote sense;cross-validation