Hawaii Ocean Mixing Experiment: Nearfield Program: Observations of Internal Wave Propagation and Overturning

夏威夷海洋混合实验：近场计划：内波传播和翻转的观测

• 批准号: 9819529
• 负责人: Robert Pinkel
• 金额: --
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 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: 2001-09-15 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9819529&HistoricalAwards=false
• 关键词: Hawaii; Ocean; Mixing; Experiment; Nearfield

9819529 PinkelA large coordinated experiment (HOME: Hawaiian Ocean Mixing Experiment) is underway near the Hawaiian Ridge to determine whether sites with rough topography are responsible for the mixing of the global ocean. The goals of the experiments are to identify the major energy pathways for ocean mixing and achieve an approximate energy budget for the region. Following historical analysis, modeling and survey work, 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 understanding the characteristics of the internal tide and the internal wave field in the upper 600 m. The research platform FLIP will be moored for about 40 days during Spring tides on the South edge of the ridge, approximately 20 km west of Kaena Pt. A rapidly profiling CTD and a lowered up-looking, high resolution sonar will be used to provide real-time display of the stratification, velocity shear and stability of the water column, enabling real-time modification of sampling strategies by the mobile components of the experiment.

9819529 Pinkel一项大型协调实验（HOME：夏威夷海洋混合实验）正在夏威夷海脊附近进行，以确定地形粗糙的地点是否是全球海洋混合的原因。这些实验的目的是确定海洋混合的主要能量途径，并为该区域获得大致的能量预算。在历史分析、模拟和调查工作之后，HOME项目的近场实验侧重于调查夏威夷海脊附近的动力过程，特别是正压潮汐强迫的响应，包括低模和高模内波的产生、传播和湍流耗散和混合。该子项目将侧重于了解600米以上的内潮和内波场的特征。研究平台FLIP将在春季潮汐期间在Kaena Pt以西约20公里的山脊南部边缘停泊约40天。将使用一个快速剖面CTD和一个下俯式高分辨率声纳，实时显示水柱的分层、速度切变和稳定性，从而使实验的移动的组成部分能够实时修改取样策略。