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我国正处在高速城市化阶段,城市热岛效应已成为主导城市气候与环境的要素之一。随着遥感技术的不断成熟,诸多遥感地表参数可以通过遥感数据反演获取,这为城市热岛效应研究提供了思路与方法。本文以连云港市为例,基于LandSatETM/TM三期(1990、2000、2009)影像数据定量反演晴空状态下城市亮度温度、地表反照率和NDVI,通过分析亮度温度与地表反照率及NDVI的关系,系统分析了连云港市城市热岛的发展趋势及规律,并从城市绿地系统规划的角度提出了治理对策。
China is in the stage of high-speed urbanization. The urban heat island effect has become one of the main factors that dominates urban climate and environment. With the continuous maturity of remote sensing technology, many remote sensing surface parameters can be obtained by remote sensing data retrieval, which provides ideas and methods for urban heat island effect research. This paper takes Lianyungang as an example to quantitatively retrieve urban brightness temperature, surface albedo and NDVI based on LandSat TM TM TM III (1990, 2000, 2009) image data. By analyzing the relationship between brightness temperature and surface albedo and NDVI , Systematically analyzed the development trends and laws of urban heat island in Lianyungang city and put forward the management countermeasures from the perspective of urban green space system planning.