基于Landsat 8数据的芜湖市地表温度反演

Land Surface Temperature Retrieval Based on Landsat 8 Data in Wuhu City

以空间分辨率100 m的Landsat 8 TIRS热红外传感器第10波段数据为基础,采用对大气透射率估算方程修正后的单窗算法,反演了芜湖市地表温度,并使用MODIS地温产品数据为标准对其进行精度评价。评价结果表明,修正后的算法所得到的反演结果具有较高的数据精度,能够更加准确细致地表示出地表温度空间分布的细节信息。

Based on the tenth band data of the Landsat 8 TIRS thermal infrared senor with a spatial resolution of 100 m,we used the mono-window algorithm modified by the atmospheric transmittance estimation equation to retrieve the land surface temperature of Wuhu City and used the MODIS land surface temperature product data as the standard to evaluate its accuracy. The evaluation results showed as followed： the retrieved results obtained by the modified algorithm had a higher data accuracy and the detailed information of land surface temperature spatial distribution could be expressed more accurately.