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中文摘要：
通过二向性反射率分布函数（BRDF）核驱动模型对黑河试验多角度热红外机载数据的拟合,证明了核驱动模型具有热红外波段的外延能力,确定了适用于多角度热红外数据的最佳核函数组合.在热辐射方向性核系数组合因子与地表温度（LST）构成的特征空间中构建、提取了多角度热红外干旱指数（MTDI）.在黑河各试验区,MTDI和温度植被干旱指数（TVDI）的反演结果非常相近（相关系数大于0.87）,表明核驱动模型在热红外波段也是分析方向性辐射信息的有效模型.
英文摘要：
This paper has proved the data fitting and extrapolating ability of the kernel-driven model in TIR band by simulation of the multi-angle thermal infrared images of Linze grassland acquired in WATER campaign with the model.Additionally,the most suitable kernel-driven model available for multi-angle thermal imagery has been identified.In the feature space of land surface temperature（LST） and a combination of model coefficients which describes the actual surface directional radiative characteristics,a multi-angle thermal infrared dryness index（MTDI） is constructed and extracted out.The correlation coefficient of simulated MTDI and corresponding Temperature-Vegetation Dryness Index（TVDI） is greater than 0.87.It can be inferred that the kernel driven model is also effective in the analysis of directional radiative information in thermal infrared band.
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