利用ETM+和MODIS数据反演陆地表面温度

Landsat 7 ETM+数据是一种常用的中分辨率卫星遥感数据，它的热红外波段的空间分辨率为60m，是目前星载遥感数据中分辨率最高的。然而由于Landsat 7 ETM+只有一个热红外波段，给ETM+陆地表面温度反演造成了困难。本文在前人研究的基础上开展ETM+数据陆地表面温度反演研究，首先利用MODIS数据反演总大气水蒸汽含量，然后利用普适性单通道算法从ETM+数据得到陆地表面温度，试验结果表明该方法能够取得较好的反演结果。

Land surface temperature retrieval using ETM+ and MODIS data

Landsat 7 ETM+ is a commonly used medium-resolution space-borne remote sensing data; The resolution of its thermal infrared band is 60m, the highest in the space-borne thermal infrared remote sensing data nowadays. However the fact that Landsat 7 ETM+ have only one thermal infrared band causes limitation in land surface temperature retrieval. In this paper, land surface temperature retrieval with Landsat 7 ETM+ data was carried out based on previous relevant studies. Firstly, the total atmospheric water vapor content was obtained using MODIS imagery, then the generalized single channel algorithm was applied to retrieve land surface temperature from ETM+ imagery. Experimental result shows this method can achieve a good retrieval result.