Mesoscale Variability and Processes in an Eddy-Resolving Global POP Simulation

涡旋解析全局 POP 模拟中的中尺度变异性和过程

• 批准号: 0221781
• 负责人: Julie McClean
• 金额: $ 39.12万
• 依托单位: Naval Postgraduate School
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0221781&HistoricalAwards=false
• 关键词: Mesoscale; Variability; Processes; Eddy; Resolving

Mesoscale Variability and Processes in an Eddy-Resolving Global POP SimulationJulie McCleanNPS A high-resolution global configuration of the Parallel Ocean Program (POP) model will be analyzed to determine the mescoscale transfer of properties between basins, hemispheres, and gyres with the goal of identifying the role of these fluctuations with thermohaline properties. Global eddy variability will be quantified by calculating energy levels and intrinsic length scales (Eularian and Lagrangian) to allow comparison with global or near-global coverage (drifters, altimetry, and floats). Meridional heat transports, their components, and divergence and time variability will be calculated. Particular emphasis will be placed on eddy heat transports. The western boundary current and tropics will be regions of interest for the analysis of the characteristics, generation and dissipation mechanisms, and dynamics and property fluxes associated with mesoscale eddies. The studies will be coordinated with those of the Kuroshio Extension System Study (KESS). Mixing rates along isopycnals will be computed from the model eddy and dispersion statistics and then will be compared with rates obtained from the Southern Ocean Floats on Isopycnal Experiment (SOFIE). A web-based autonomous extraction system will be set up to disseminate subsets of model output to help facilitate collaborations and community use.

涡旋分辨全球POP模拟中的中尺度变率和过程 一个高分辨率的全球配置的并行海洋计划（POP）模式将进行分析，以确定中尺度之间的盆地，半球和环流的属性转移，以确定这些波动与温盐属性的作用的目标。 通过计算能量水平和内在长度尺度（欧拉和拉格朗日）来量化全球涡动变化，以便与全球或近全球覆盖范围（漂流物、测高和浮标）进行比较。将计算经向热输送、其分量、散度和时间变率。特别强调的是涡流热传输。 西部边界流和热带将是分析中尺度涡旋的特征、生成和耗散机制以及与中尺度涡旋相关的动力学和性质通量的感兴趣区域。 这些研究将与黑潮延伸系统研究（KESS）协调进行。 沿等密度线的沿着混合率将根据模型的涡流和扩散统计数据计算，然后将与南大洋等密度线浮标实验获得的混合率进行比较。 将建立一个基于网络的自主提取系统，以传播模型输出的子集，以帮助促进合作和社区使用。