气象学报（英文版）2022，Vol.36Issue(6)：914-930,中插60-中插93,51.
城市精细化气候环境评估及通风廊道构建研究——以西安中心城为例
Assessment of Urban Climate Environment and Configuration of Ventilation Corridor:A Refined Study in Xi'an
摘要
Abstract
Integrating urban spatial landscape (USL) parameters into refined climate environment assessment is important. By taking the central urban area (CUA) of Xi'an, China as an example, this study develops an evaluation method based on Urban Climatic Map (UCMap) technology. We define surface urban heat island intensity (SUHI) and surface ventilation potential coefficient (VPC), which can effectively reflect local urban climate. Based on SUHI and VPC, we analyze the influences of seven typical USL metrics including building height (BH), building density (BD), floor area ratio (FAR), sky view factor (SVF), frontal area index (FAI), surface roughness length (RL), and vegetation co-ver (VC). Then, we construct a comprehensive evaluation model and create an urban climate zoning map on a 100-m resolution. The climate optimization on the map is performed for configuration of possible ventilation corridors and identification of associated control indicators. The results show that the main factors affecting SUHI in the CUA of Xi'an are VC and BD, which explain 87.9％ of the variation in SUHI, while VPC explains 50％ of the variation in SUHI. The main factors affecting VPC are BH, FAR, FAI, and RL, all of which contribute to more than 95％ of the variation in VPC. The evaluation model constructed by SUHI, VPC, and VC can divide the CUA into climate re-source spaces, climate preservation spaces, climate sensitive spaces, and climate restoration spaces. On this basis, a ventilation corridor network of 3 level-1 corridors (each over 500 m wide), 6 level-2 corridors (each over 500 m wide) and 13 level-3 corridors (each over 50 m wide) is established. Meanwhile, the main quantitative control indic-ators selected from the USL metrics are proved to be capable of ensuring smooth implementation of the planned cor-ridors at different levels.关键词
城市环境气候图/通风廊道规划/城市空间结构/热岛效应/地表通风潜力/廊道指标Key words
urban climatic map/ventilation corridor planning/urban spatial landscape metric/urban heat island/sur-face ventilation potential引用本文复制引用
党冰,刘勇洪,吕红亮,周霞,杜吴鹏,轩春怡,邢佩,杨若子,熊飞麟..城市精细化气候环境评估及通风廊道构建研究——以西安中心城为例[J].气象学报（英文版）,2022,36(6):914-930,中插60-中插93,51.基金项目
Supported by the National Key Research and Development Program of China(2018YFB1502801),Innovation and Development Project of China Meteorological Administration(CXFZ2021J046),Beijing Municipal Science and Technology Project(Z201100008220002),and High-Level Technology and Innovative Talent Program of Beijing Meteorological Service(2021).由国家重点研发计划(2018YFB1502801),中国气象局创新发展专项(CXFZ2021J046),北京市科技计划课题(Z201100008220002),北京市气象局"新时代高层次科技创新人才计划"共同资助. （2018YFB1502801）
