Nonlinear Spectral Mixing in Desert Vegetation
Nonlinear Spectral Mixing in Desert Vegetation
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DOI：
10.1016/0034-4257(95)00171-9
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发表时间：
1996
影响因子：
13.5
通讯作者：
T. W. Ray;B. Murray
中科院分区：
文献类型：
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作者：
T. W. Ray;B. Murray
线性混合模型广泛应用于陆地遥感，这些模型中的误差通常归因于“非线性”混合。非线性混合是指光与多种目标材料的相互作用。利用莫哈韦沙漠马尼克斯盆地杂酚油灌木的反射率数据来说明区域植被中非线性混合的存在及其重要性。它表明，植物对土壤背景的反射光谱和植物对黑暗背景的光谱的差异很好地表示了与土壤和植物相互作用的光。
Linear mixing models are widely used in terrestrial remote sensing, with the errors in these models being often attributed to “nonlinear” mixing. Nonlinear mixing refers to the interaction of light with multiple target materials. Reflectance data from creosote bush in the Manix Basin of the Mojave Desert is used to show the existence and importance of nonlinear mixing in and region vegetation. It shows that the difference in the reflectance spectrum of plants against a soil background and the spectrum of the plant against a dark background is well represented by light that has interacted with both the soil and the plant.