运用RS和GIS提取城区热力场的研究

Research on Extracting Urban Thermal Force Field using RS and GIS

在论述热岛效应研究现状、遥感及地理信息系统的基本理论、电磁波辐射的原理及地表的热红外特征的基础上,以哈尔滨市二环以内为研究区域,通过对影像数据进行几何精校正、确定空间范围、建立温度反演模型等工作,提取了哈尔滨市城区热力场分布;用GIS软件进行辐射温度专题的再分类并进行空间分析;运用VB语言建立了温度查询分析系统,以便于对哈市各个温度分类斑块的温度进行查询。

This paper discussed the research present condition of heat island effect, the basic principle of remote sensing and geographic information system, the foundation of the electromagnetic wave radiation, and the thermal characteristic of the earth＇s surface. Taking the area within the second ring road in Harbin City as the study area,it extracted the distribution of urban thermal force field of Harbin City through implementing geometric accurate correction, spatial scope identification, temperature retrieval model construction, and so on. It reclassified the radiation temperature and carried on spatial analysis using GIS software. Then it built up a temperature search and analysis system using the VB language in order to search the temperature of each classification spot of temperature in Harbin City.