基于ASTER数据反演我国南方山地陆表温度  

RETRIEVEING LAND SURFACE TEMPERATURE OF MOUNTAIN AREAS IN SOUTHERN CHINA BASED ON ASTER DATA

作　　者：王凤敏[1] 田庆久[1] 虢建宏[1] 

机构地区：[1]南京大学国际地球科学系统研究所,南京210093

出　　处：《国土资源遥感》2005年第1期30-33,共4页Remote Sensing for Land & Resources

摘　　要：以贵州省黎平县山地植被覆盖区为例,基于ASTER遥感数据进行15m分辨率的归一化植被指数制图和地表发射率制图,在利用MODTRAN4大气辐射传输模型进行大气订正的基础上,基于普朗克辐射方程的推导反演陆表温度,取得了较为理想的结果。This research was performed in Liping County, Guizhou Province, a typical mountain area covered by vegetation in southern China. Having classified land surface objects based on the Normalized Difference Vegetation Index (NDVI) map compiled from ASTER data, the authors assumed different emissivities for different objects and made scale conversion to 90 meter resolution, thus compiling the emissivity map of the study area. Then the radiance of the study area was obtained through the thermal infrared bands of ASTER which was atmospherically corrected by MODTRAN 4. At last, the authors retrieved the land surface temperature based on the Plank radiate deduction equation and acquired good results.

关 键 词：热红外 遥感 ASTER 陆表温度 发射率 

分 类 号：TP722.5[自动化与计算机技术—检测技术与自动化装置]