地表温度在基于光谱混合分析提取城市不透水层中的应用  

Application of land surface temperature in extracting urban impervious surfaces based on spectral mixture analysis

作　　者：颉继珍 王秀琴 Xie Jizhen;Wang Xiuqin(Provincial Geomatics Center of Gansu,Lanzhou 30000,China;Map Institute of Gansu Province,Lanzhou 730000,China)

机构地区：[1]甘肃省基础地理信息中心,甘肃兰州730000 [2]甘肃省地图院,甘肃兰州730000

出　　处：《矿山测量》2018年第4期5-11,共7页Mine Surveying

摘　　要：文中利用Landsat-7 ETM+影像的多光谱和热红外波段进行光谱分析和地表温度反演,旨在开发一套提取城市不透水层的完整解决方案,特别是利用地表温度,从低反照率盖度影像中去除非不透水层信息,以便提高城市不透水层的评估精度。In the paper, multi-spectral and thermal infrared bands of Landsat-7 Enhanced Thematic Mapper Plus （ETM＋） image were used to carry out the spectral analysis and the surface temperature inversion to develop a complete solution for extracting and mapping urban impervious surfaces. In particular, surface temperature was used to remove non-impermeable layer information from low albedo fraction image in order to improve the assessment accuracy of urban impervious layers.

关 键 词：不透水层 V-I-S模型 光谱混合分析 地表温度 

分 类 号：TD171[矿业工程—矿山地质测量] P237[天文地球—摄影测量与遥感]