在我们定期发布的MODIS图像中，如果油污非常靠近会出现日光反射的地方，它总是比周围的干净水域要明亮。
If the oil is located very close to the spot where the Sun's reflection would appear, it usually looks brighter than nearby clean water in the MODIS images we routinely publish.
植物氮素含量与可见光和近红外光反射系数的比具有很好的相关性，因此利用光谱反射系数可以测定植物氮素含量，为合理的施用养分提供依据。
The ratio of the reflectance in visible and NIR is highly correlated with nitrogen applied to the plant. The nitrogen contents in the plant can be obtained by measuring spectrum reflectance.
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