Hawaii Ocean Mixing Experiment: Nearfield Program: Three-Dimensional and Temporal Structure of Turbulence

9819535 gregg提供资金在夏威夷海岭附近进行大型协调实验（HOME: Hawaiian Ocean Mixing experiment），以确定地形粗糙的地点是否对全球海洋的混合负责。目标是确定海洋混合的主要能量途径，并实现该区域的大致能量收支。HOME项目的近场实验侧重于研究夏威夷海岭附近的动力过程，特别是对正压潮汐强迫的响应，包括低模态和高模态内波的产生、传播和湍流耗散和混合。该子项目将重点绘制卡耶纳坡脊内部潮汐的空间范围和春季/小潮变化。具体来说，先进的微结构剖面仪（AMP）将与R/V Revelle船尾的一个深度循环拖曳体一起部署，同时缓慢地平行穿过Ridge。舰载声纳将同时绘制700米的速度场图。在拖曳体上的向上和向下看的声学多普勒电流剖面仪（ADCP）将测量更接近底部的深切变，并且具有比船上ADCP更高的垂直分辨率。

9819535 GreggFunding is provided to conduct a large coordinated experiment (HOME: Hawaiian Ocean Mixing Experiment) near the Hawaiian Ridge to determine whether sites with rough topography are responsible for the mixing of the global ocean. The goals are to identify the major energy pathways for ocean mixing and achieve an approximate energy budget for the region. The Near-field experiment of the HOME project focuses on the investigation of the dynamical processes in the immediate vicinity of the Hawaiian Ridge, and especially the response to barotropic tidal forcing including generation of low- and high-mode internal waves, propagation and turbulent dissipation and mixing. This sub-project will focus on mapping the spatial extent and spring/neap variability of the internal tide over Kaena Pt. Ridge. Specifically, the Advanced microstructure profiler (AMP) will be deployed with a depth-cycling towed body from the stern of the R/V Revelle while moving slowly across and parallel to the Ridge. The shipboard sonar will simultaneously map the velocity field to 700 m. Upward and downward looking Acoustic Doppler Current Profilers (ADCP) on the towed body will measure deep shear closer to the bottom and with higher vertical resolution that can be measured by shipboard ADCPs.