Short-wave ocean wave slope models for use in remote sensing data analysis
Short-wave ocean wave slope models for use in remote sensing data analysis
复制标题
用于遥感数据分析的短波海浪坡度模型
DOI：
10.1109/tgrs.2006.870439
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发表时间：
2006
影响因子：
8.2
通讯作者：
K. Michael
中科院分区：
文献类型：
--
作者：
M. Heron;W. Skirving;K. Michael
海浪的方向性的最新发展进行了审查，并适应到辐射遥感的工作模式。有大量的理论和观测证据表明，在波数大于谱峰值的海面重力波的方向波谱中存在双峰。我们开发了一个模型的定向分裂，这是一致的观测，但在一个可信的方式外推到在波长约0.3米观察到的全向性。在较短的波长的方向谱成为单峰，并具有近似恒定的形状整个重力毛细波制度。本文提出了一个海浪谱方向性的工作模型，以改进辐射海面数据的分析。该模型还可用于其他分析，包括使用布拉格散射的主动雷达技术
Recent developments in the directionality of sea waves are reviewed and adapted into a working model for radiometric remote sensing. There is a weight of evidence, both theoretical and observational, that a bimodality exists in the directional wave spectrum for sea surface gravity waves at wavenumbers greater than the value at the peak of the spectrum. We develop a model for the directional splitting which is consistent with observations but which extrapolates in a credible manner to the omnidirectionality observed at wavelengths around 0.3 m. At shorter wavelengths the directional spectrum becomes unimodal and has an approximately constant shape across the gravity-capillary wave regime. A working model is suggested for the directionality of the wave spectrum to improve the analysis of radiometric sea surface data. The model will also be useful for other analyses including active radar techniques which use Bragg scatter