Kay Susan, Hedley John, Lavender Samantha, Nimmo-Smith Alex
College of Life and Environmental Sciences, University of Exeter, Exeter, UK.
Opt Express. 2011 Mar 28;19(7):6493-504. doi: 10.1364/OE.19.006493.
The behavior of light at the air-sea interface has been investigated using ray tracing methods with numerically realized surfaces that incorporate features on scales from 3 millimeters to 200 meters. The directional reflection of light at the surface realizations was tested using Monte Carlo code. Estimated directionally reflected radiances were generally in good agreement with those from existing methods that model the slope statistics but not the shape of the sea surface. However, significant differences were found for some incident and exitant directions. The model was used to quantitatively estimate the pixel-to-pixel variation in ocean color images caused by spatial variation in the sea surface shape.
利用光线追踪方法,通过数值实现包含从3毫米到200米尺度特征的海面,对光在海 - 气界面的行为进行了研究。使用蒙特卡罗代码测试了光在这些表面实现上的方向反射。估计的方向反射辐射率通常与现有方法(这些方法对斜率统计进行建模,但不对海面形状进行建模)得到的结果吻合良好。然而,在某些入射和出射方向上发现了显著差异。该模型用于定量估计由海面形状的空间变化引起的海洋颜色图像中像素间的变化。