Hawaii Ocean Mixing Experiment: Nearfield Program: Abyssal Mixing

9819531 MoumFunding 被提供用于在夏威夷海脊附近进行大型协调实验（HOME：夏威夷海洋混合实验），以确定地形崎岖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源途径，并实现该地区的大致能源预算。 HOME项目的近场实验重点研究夏威夷海脊附近的动力学过程，特别是对正压潮汐强迫的响应，包括低模和高模内波的产生、传播以及湍流耗散和混合。该子项目将侧重于将山脊顶部的局部湍流和切变与潮汐引起的切变和应变的时间变化联系起来，该变化由研究平台 FLIP 和海流计系泊装置的固定点观测确定。深拖体（Marlin）和垂直微结构剖面仪（Chameleon）将在春潮和小潮期间部署。一些观测还将在海岭以南 3000 米深处进行，以确定其他 HOME 调查人员观测到的高耗散率的空间变化。

9819531 MoumFunding 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 relating the local turbulence and shear across the ridgetop to the temporal variability of the tidally-induced shear and strain determined by the fixed point observations from the research platform FLIP and current meter moorings. A deep towed body (Marlin) and a vertical microstructure profiler (Chameleon) will be deployed during spring and neap tides. Some observations will also be conducted south of the Ridge to depth of 3000 m in order to establish the spatial variability of high dissipation rates observed by other HOME investigators.