城市热岛效应的遥感和地理信息系统方法

以哈尔滨市为例，对遥感和地理信息系统相结合提取城市热力场信息的方法进行了研究．在地理信息系统ArcView中通过对遥感图象进行密度分割和多光谱合成，得到了能够较好反映城市热力场信息的。TM632合成图象，并通过B6波段进行温度反演，得到了哈尔滨市的地表辐射温度专题图．在地理信息系统ArcView中将该专题图与其他专题图进行叠加分析、统计分析等，不仅可以显示出市区热力场空间分布格局，还可以得到影响热岛效应的各因素及其与城市热岛效应的关系，为城市综合评价和生态建设提供依据．

A method of studying urban heat island effect based on RS and GIS

A method using the integrated technique of RS and GIS to get information of the thermodynamic field in Harbin is studied. In ArcView GIS, through density slicing and multi-spectral synthesizing, we get TM632 image, which can well reflect the information of urban thermodynamic field. Through temperature retrieval based on B6 wave, we get the heat radiation thematic image of Harbin. Overlay analysis and statistical analysis with other thematic images can not only display the thermodynamic field of Harbin, but also get influencing factors and relation with urban heat island effect. All of these offer the basis for city appraising and ecological construction.