Langmuir Circulations Beneath Growing or Deforming Surface Waves

将进行一项分析和数值研究，以考察剪切波和无旋波在朗缪尔环流形成中的作用。产生涡旋的不稳定机制以Craik-Leibovich第二类机制为基础，因为海洋观测揭示了这些方程的局限性，它们将不被用来描述流动。取而代之的是使用Andrews和McIntyre的广义拉格朗日平均方程来定义C-L方程何时不适用于海洋表面混合层。来自海洋和实验室观测的实际平均流将被用来估计混合层内的热量、质量和动量传输。这项工作很重要，因为朗缪尔环流似乎是海-气界面的一种重要的混合机制。

An analytical and numerical study to examine the role of shear and irrotational waves on the formation of Langmuir cells will be conducted. The instability mechanism giving rise to the vortices has as its basis the Craik-Leibovich type 2 mechanism, because oceanographic observations bring to light limitations with these equations, they will not be used to describe the flow. Instead the generalized Lagrangian mean equations of Andrews and McIntyre will employed to define when the C-L equation is not applicable to the ocean surface mixed layer. Actual mean currents from ocean and laboratory observations will be used to estimate heat mass and momentum transport within the mixed layer. This work is important because Langmuir circulations appear to be an important mixing mechanism at the air-sea interface.