摘要
通过遥感影像热红外波段制作亮温图,揭示苏州和张家港两城市的地面温度情况,将城市建筑物按亮温等级划分为高温、较高温、中温等几个类型,发现城市中大型建筑体和建筑物密集群是引起城市热岛效应的主要推手。针对这些建筑物与场地的节能改造、余热利用以及绿化建设是减轻城市热岛效应,改善城市热环境质量的关键措施,今后城市规划应该避免将引起城市明显升温的建筑物和场地置于城市主建成区。
Brightness temperature diagram is established by remote sensing image of thermal infrared band to reveal ground temperature of two cities including Suzhou and Zhangjiagang, in which urban buildings are divided into several types including high temperature, relatively high temperature and medium temperature according to bright- ness temperature grade, from which it is found dense clusters of large and medium structures and buildings in cities are main factors causing urban heat island effect. Energy conservation transformation, surplus heat utilization and greening construction aiming at these buildings and sites are key measures to reduce urban heat island effect and improve urban thermal environment quality, and future urban planning should avoid placing buildings and sites resulting in obvious rise in urban temperature in main urban built-up areas.
出处
《住宅科技》
2012年第9期10-14,共5页
Housing Science
基金
建设部科技项目(2010-R1-21)
关键词
城市热岛
表面温度
热红外
建筑物
urban heat island, surface temperature, thermal infrared, building
