ABOUT THE SOIL LINE CONCEPT IN REMOTE-SENSING
ABOUT THE SOIL LINE CONCEPT IN REMOTE-SENSING
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DOI：
10.1016/0273-1177(93)90560-x
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发表时间：
1993-05-01
期刊：
影响因子：
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通讯作者：
HANOCQ, JF
中科院分区：
文献类型：
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作者：
BARET, F;JACQUEMOUD, S;HANOCQ, JF
在土壤线上，裸土反射率呈线性关系，观测到两个不同波段的反射率。被广泛用于遥感数据的解释。利用辐射传输模型分析了土壤线的基础，该模型将反射率分解为单次和多次散射分量。土壤线的斜率对应于定义土壤线的两个波段对应的单次散射的比值。截距源自在所用两个波长带中观察到的多重散射差异。土壤线的概念是非常强大的整个光学域，只要土壤类型被分离，并考虑到视图和源配置以及表面粗糙度的影响。然而，在中红外光谱域，土壤线的概念失败时，土壤水分是一个因素的变化。
The soil line, a linear relationship between bare soil reflectance observed in two different wavebands. is widely used for interpretation of remotely sensed data. The basis on soil line was analyzed using a radiative transfer model in which reflectance was splitted into its single and multiple scattering components. The slope of the soil line corresponded to the ratio of the single scattering albedos corresponding to the two wavebands where the soil line was defined. The intercept originated from the difference in multiple scattering observed in each of the two wavelength bands used. The soil line concept was very robust over the whole optical domain as soon as soil types are separated, and when the effect of the view and source configurations as well as the surf-ace roughness were considered. However, in the middle infrared spectral domain, the soil line concept failed when soil moisture was a factor of variation.