Hawaii Ocean Mixing Experiment: Nearfield Program: Full Depth Tide-Beam Tracking

夏威夷海洋混合实验：近场计划：全深度潮汐束跟踪

• 批准号: 9819536
• 负责人: Craig Lee
• 金额: --
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2008-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9819536&HistoricalAwards=false
• 关键词: Hawaii; Ocean; Mixing; Experiment; Nearfield

9819536 LeeA large coordinated experiment (HOME: Hawaiian Ocean Mixing Experiment) near the Hawaiian Ridge is underway 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. This project is part of the near-field experiment of the HOME project that 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 understanding the mechanisms responsible for generating both low- and high-mode internal tides that radiate energy away from the Ridge and high wavenumber internal waves which dissipate nearer the generation region. Full-depth (including the bottom boundary layer) velocity, density and microstructure profiles will be collected to estimate energy flux, flux divergence and dissipation. Synoptic survey to sample across and along Ridge response will repeated every 2.5 hour for a period of at least 13 hours using XCPs. An extended occupation station (30+ hours) will investigate the contributions of non-tidal inertial motions.

9819536 LEEA大型协调实验（家：夏威夷海洋混合实验）正在夏威夷山脊附近，以确定具有粗糙地形的地点是否负责全球海洋的混合。目标是确定海洋混合的主要能量途径，并实现该地区的近似能量预算。该项目是家庭项目的近场实验的一部分，该项目的重点是研究夏威夷山脊附近的动态过程，尤其是对正压潮汐强迫的反应，包括产生低模式内部和高模式内波，繁殖，繁殖和湍流的消散和混合。该子项目将集中于理解负责产生低模式内部潮汐的机制，这些机制将能量从山脊和高波数内波辐射出来，这些内波会消散，从而散发出更接近生成区域的能量。将收集全深度（包括底部边界层）速度，密度和微观结构曲线，以估计能量通量，通量差异和耗散。使用XCP的概要调查将每2.5小时重复一次，每2.5小时至少13小时。扩展的职业站（30多个小时）将调查非潮汐惯性运动的贡献。