利用雷达探测海面识别油膜的可能性

S. Ermakov
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引用次数: 5

摘要

综述了应用物理研究所利用雷达和光学方法进行的表面活性剂(单分子)和油膜对短风波阻尼的实验。在不同风速和薄膜物理特性下的较宽(分米-厘米尺度)的风波波长范围内分析了风波在薄膜中的阻尼程度(光谱对比)。建立了一种简单的局部风浪谱平衡模型,用于描述短风浪中的薄膜效应。揭示了膜层和一些相似的区域,特别是风压区(WDA)的光谱对比度的差异:膜层的光谱对比度随着表面波数的增加而增加,而WDA的光谱对比度对于分米-厘米尺度的风波几乎是恒定的。光谱对比的特定行为可以用作光滑的光谱标志。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Possibilities of identification of oil films using radar probing of the sea surface
A brief review of experiments on damping of short wind waves due to surfactant (monomolecular) and oil films carried out at the Institute of Applied Physics RAS using radar and optical methods is given. The damping degree of wind waves (spectral contrast) in film slicks is analyzed in a wide (decimeter-centimetre-scale) wavelength range of wind waves at different wind speeds and physical characteristics of films. A simple local balance model of the wind wave spectrum is developed to describe the film effect on short wind waves. Differencies in the spectral contrasts for film slicks and for some ldquolook-alikesrdquo, in particular, for wind depression areas (WDA) are revealed: the spectral contrast for film slicks increases with surface wave number, while for WDA the contrast is practically constant for decimeter-centimeter-scale wind waves. The specific behaviour of the spectral contrast can be used as a slick ldquospectral signrdquo.
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