使用LANDSAT-5TM数据反演金塔地表温度

Retrieving of Land Surface Temperature over Jinta Area Using LANDSAT-5 TM Data

使用Landsat-5 TM的热红外波段资料,用Weng等、Qin等及Jimenez Mu^noz等三种不同的方法对金塔地区地表温度进行反演,并将反演得到的结果与实测值进行比较。结果表明,三种方法均能较好地反演出金塔绿洲地表温度的分布状况,其中,Weng等及Qin等的反演方法反演的结果较好,绝对误差均<1.9°C;而Jimenez Mu^noz等的方法反演的结果较差。

The thermal infrared band of Landsat-5 TM was used to retrieve Land Surface Temperature （LST） in three different algorithms,and the results comparing with the observations indicate that all the algorithms can retrieve the distribution of LST, the first and two algonthms are the best ones because of the absolute errors of them are both less than 1.9℃, but the third algorithm is not as good as them.