Observational Mesoscale Context for Oceanic Turbulence Measurements Obtained during CBLAST-low

这项提议要求为两个系泊设施提供经费，以便为海洋湍流测量提供观测中尺度背景，以便在将于2003年夏秋在玛莎葡萄园岛海岸观测站进行的边界层和海气耦合传输(CBLAST-LOW)实验的低风部分获得。在CBLAST-Low期间，将在15米水深的海气相互作用塔(ASIT)获得对湍流通量和耗散率的直接海洋测量，以及对速度、温度和盐度的测量。拟议的额外系泊将沿ASIT沿等深线放置，间隔约5公里和10公里，将支持中深海和近水面的海底压力传感器和温盐传感器。建议系泊的目的是确定近岸正压和斜压压力梯度，这将允许直接估计沿等深动量方程中的主导项。

This proposal requests funding for two moorings designed to provide an observational mesoscale context for oceanic turbulence measurements to be obtained during the low-wind component of the Coupled Boundary Layers and Air-Sea Transfer (CBLAST-low) experiment, which will occur during the summer and fall of 2003 at the Martha's Vineyard Coastal Observatory (MVCO). During CBLAST-low, direct oceanic measurements of turbulent fluxes and dissipation rates, together with measurements of velocity, temperature, and salinity, will be obtained at an Air-Sea Interaction Tower (ASIT), at a water depth of 15 m. The proposed additional moorings will be placed along-isobath from the ASIT, at separations of approximately 5 and 10 km, and will support bottom pressure sensors and temperature-salinity sensors at mid-depth and near the surface. The purpose of the proposed moorings is to determine the alongshore barotropic and baroclinic pressure gradients, which will permit direct estimation of the dominant terms in the along-isobath momentum equation.