Lowered ADCP Finestructure and Inferred Mixing in the Deep Ocean

降低 ADCP 精细结构并推断深海混合

• 批准号: 9906731
• 负责人: Kurt Polzin
• 金额: $ 48万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-10-01 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9906731&HistoricalAwards=false
• 关键词: Lowered; ADCP; Finestructure; Inferred; Mixing

Polzin/KunzeA study of finescale internal wave shear and strain climatologies using the Lowered Acoustic Doppler Profiler and hydrographic profiles from the World Ocean Circulation Experiment (WOCE) will be conducted. The finescale spectral levels will be quantified on a section by section basis and as a function of topographic variability, barotropic tidal flows and low frequency currents. A finescale parameterization for turbulence based upon internal wave-wave interaction theory will be used to assess dissipation rates and eddy diffusivities. The goal is to provide estimates of diapycnal mixing in abyssal basins.

波尔津/昆泽将利用降低的声学多普勒剖面仪和世界海洋环流实验(WOCE)的水文剖面对精细尺度的内波、切变和应变气候进行研究。FineScale光谱水平将根据地形变化、正压潮汐气流和低频洋流逐段量化。基于内部波-波相互作用理论的湍流精细参数化将被用来评估耗散率和涡旋扩散系数。其目标是提供对深海盆地中昼夜混合的估计。