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CN 11-3693/P

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基于风热环境评估的平顶山城市通风廊道构建
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河南省气候中心

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河南省气象局重点实验室应用技术研究基金(KM202206)


Construction of Urban Ventilation Corridor in Pingdingshan City Based on Wind and Thermal Environment Assessment
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Climate center of Henan Province

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    摘要:

    城市通风廊道以提升城市的空气流动性、缓解城市热岛效应和改善人体舒适度为目的,为城市引入新鲜冷湿空气而构建的通道,目前已在世界各国城市中得到广泛应用。本研究利用平顶山市及周边地区气象站观测资料、卫星遥感数据、基础地理信息资料,并结合城市规划,采用数理统计、地表温度反演,地理信息系统技术,综合分析与评估平顶山城市风环境、城市热岛及绿源的分布、地表通风潜力,在此基础上初步构建平顶山市城市通风廊道。结果表明:(1)受地形与季风气候共同作用,平顶山市主导风向以西北风、东北风和南风为主,且存在季节差异;(2)平顶山市的城市热岛空间上呈多中心分布,热岛强度由中心城区向周围递减;城市绿源主要分布在城市周边,可为主城区引入新鲜空气;(3)基于城市地表粗糙度、天空开阔度等因子综合评估城市通风潜力,初步构建平顶山市“六主十次”的城市通风廊道系统格局。

    Abstract:

    Urban ventilation corridor was designed to improve urban air circulation, alleviate urban thermal environment and improve human comfort, has been widely used in cities all over the world. Based on the observation data of meteorological stations, satellite remote sensing data, basic geographic information and urban planning of Pingdingshan city, with the method of mathematical statistics, land surface temperature retrieval, geographic information systems and remote sensing techniques , we analyzed wind environment, urban heat island (UHI), green source and ventilation potential of the city, meanwhile constructed the structure of urban ventilation corridor preliminarily. The results showed that: (1) The dominate wind in Pingdingshan was mainly from northwest, northeast and south. (2) The spatial distribution of UHI was multicenter, and the intensity of UHI decreased from the central city to surrounding area. Urban green source was mainly distributed around the city, which can introduce fresh air into urban center. (3) Based on the comprehensive assessment of urban ventilation potential, urban surface roughness, sky view factor etc., the corridor system of “six main and ten secondary corridors” in Pingdingshan city was constructed.

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历史
  • 收稿日期:2023-08-21
  • 最后修改日期:2023-10-07
  • 录用日期:2023-11-28
  • 在线发布日期: 2024-02-19
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