中文摘要：

地表温度是气象、水文、生态等研究中一个重要参数。大气透过率和比辐射率是分裂窗算法的两个重要输入参数，本文利用MODIS数据的可见光波段（band1）和近红外波段（band2、19）计算该两个参数；再利用MODIS数据的两个热红外波段（band31、32）和分裂窗算法对内蒙古地区地表温度进行了反演；结果表明，遥感反演出来的地表温度的空间分布与内蒙古气候区地空间分布具有高度的一致性，能直观地反应内蒙古地区地表温度的空间分布特征。

英文摘要：

The land surface temperature is an important parameter for the weather, hydrology and ecosystem study. In this paper, the land surface temperature of Inner Mongolia area is retrieved by means of split-window algorithm based on MODIS data. The algorithm needs two parameters. The parameters are estimated using the visible, near-infrared and thermal band of MODIS data. Finally an analysis of land surface temperature＇ s distribution of Inner Mongolia is carried out according to the practical ground condition. The resuits reveal that distribution of land surface temperature remotely sensed is consistent with the actual ground surface condition and can reflect the land surface temperature distribution intuitively.