SGER: Short Wind Waves: Shape In Relation To Energy Flux And Wind Stress

智力优势：风吹的海洋表面的斜率具有近似高斯分布，但最近的卫星观测显示出可观察到的非高斯特征，其形式为随风速变化的偏斜度和峰值。这些性质可能是由表面上最短的重力波和毛细波引起的。 本计画的目的是找出造成海面均方斜率随风速线性增加的风浪，并找出斜率分布的非高斯特性。将开发观测技术，以确定海面形状，评估短波的斜率和非高斯性质，然后将这些技术扩展到确定波浪能量和风应力之间的关系。计划在这里开发的技术是有前途的，尽管工程问题具有挑战性和困难。总的来说，这项研究是探索性的，因为它的目的是量化短重力-毛细波带，主要是由于测量O（毫米至厘米）尺度的海洋表面波。从这项研究中获得的信息将有助于直接卫星观测风应力，因为卫星风场主要来源于地表粗糙度或重力-毛细波短波特征。

Intellectual Merit: Slopes of the wind-blown ocean surface have a nearly Gaussian distribution, but recent satellite observations demonstrate observable non-Gaussian characteristics in the form of skewness and peakedness that vary strongly with wind speed. These properties probably arise from the very shortest gravity and capillary waves on the surface. This project is aimed to identify the wind waves which contribute to the linear increase of mean square slope of the sea surface with wind speed and to identify the non-Gaussian character of the slope distribution. Observational techniques will be developed to find the shape of the sea surface to evaluate slopes and non-Gaussian nature of short waves, and then extending those techniques to identify relations between wave energetics and wind stress. The techniques plan to develop here are promising, though engineering issues are challenging and difficult. In general, the study is exploratory, because it is aimed to quantify short gravity - capillary wave band, mainly due to difficulties associated with measuring O(mm to cm) scale surface waves in the ocean.Broader impacts: The information gain from this study would contribute to direct satellite observations of wind stress, since satellite wind fields are primarily derived from surface roughness or the short gravity - capillary wave characteristics.