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

这项提案要求为两个系泊装置提供资金，目的是为将于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转移实验的低风速部分期间获得的海洋湍流测量提供观测中尺度环境。在CBLAST低，湍流通量和耗散率的直接海洋测量，以及速度，温度和盐度的测量，将获得在一个海气相互作用塔（ASIT），水深15米。拟议增设的系泊设施将沿等深线设置，与ASIT相距约5公里和10公里，并将支持中层和近表层的海底压力传感器和温度-盐度传感器。 拟议系泊的目的是确定沿岸正压和斜压压力梯度，这将允许直接估计沿等深线动量方程中的主要项。

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.