从Landsat8影像反演地表温度的劈窗算法研究

Research of Split-Window Algorithm for Retrieval of Land Surface Temperature from Landsat8

以厦门市为研究区域,以2013年的Landsat8为研究数据,研究亮度温度反演以及地表温度反演的劈窗算法,推导出该算法的演算过程,根据Landsat8的特性,确定该算法的参数取值。通过ENVI/IDL软件编程实现该算法,采用厦门市遥感数据反演地表温度,并且利用厦门市气象局实测温度验证地表温度反演结果的有效性。

Taking Xiamen as the study area and Landsat8 in 2013 as the research data,this paper studies the split-window algorithm for retrieval of land surface temperature,specifies the derivation process,determines the parameter selection based on characteristics of Landsat8. It also programs and implements with the ENVI/IDL software,verifies the effectiveness of the surface inversion results by the measured temperature from Xiamen Bureau of Meteorology.