基于TM影像的淮安市地表温度反演分析

Analysis the Surface Temperature of Huaian City Based on TM Remote Sensing

以淮安市1995年与2006年的Landsat TM遥感影像为主要遥感数据源,采用单窗口算法反演得到研究区的地表温度.通过计算卫星亮温,地表比辐射率,大气投射率,大气平均作用温度来完成单窗体温度反演的计算.从两个时期地表温度反演结果可以看出,城市正不断的发展,该城市聚集度有所提高,热岛效应加剧,温度分布与地表环境有着密切的联系.

This paper analyzes the surface temperature of Huaian city based on Landsat TM remote sensing images of Huai^n in 2000 May and 2006 May as the main data source, the surface temperature of the study ar- ea was extracted by single-window algorithm inversion. Calculating the satellite brightness temperature, surface emissivity, atmospheric throw ratio, average atmospheric effects temperature to complete the one-form tempera- ture inversion calculations. Then to obtain surface temperature inversion results in both periods. The use of su- pervised classification and normalization of construction index land use information extraction for analysis of building land and surface temperature between urban sprawl can be seen in silhouette. The city has increased aggregation, increased thermal conductivity effects, temperature distribution and surface environment are closely linked.