Collaborative Research: Interaction of Eddies with Mixed Layers

合作研究：涡流与混合层的相互作用

• 批准号: 0612154
• 负责人: Amit Tandon
• 金额: $ 3.37万
• 依托单位: University of Massachusetts, Dartmouth
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0612154&HistoricalAwards=false
• 关键词: Collaborative; Research; Interaction; Eddies; Mixed

0612154The main goal of on this Climate Modeling and Process team is to formulate and test in IPCC-class climate models parameterizations for the eddy transport in and near the surface boundary layer. A combination of data and very high resolution numerical models has been used to investigate eddy dynamics in the upper ocean. Using this body of work, a parameterization scheme for mesoscale eddy transport in the diabatic surface layer and a parameterization scheme for restratification driven by submesoscale eddies have been formulated and implemented in the community climate models. They show a large impact on the oceanic mean state, especially close to the surface. These modifications are likely to imply climate sensitivity in coupled models through the impact on air-sea exchange. Some of the implications for coupled climate models will be investigated. Specifically, this renewal will complete work in the following areas:. completing the implementation of the new parameterizations in the ocean climate models at NCAR, GFDL, and MIT and studying their impact in coupled ocean-atmosphere models, . comparing model outputs versus eddy statistics estimated from global data sets and from new data that will become available over the next three years from the oceanographic field campaigns,. completing the process studies of mesoscale-submesoscale interactions in the upper ocean with specialemphasis on the roles of restratification, wind forcing, and frontogenesis,. modifying the new parameterizations to account for new aspects of upper ocean physics only recently revealed by the team.Intellectual merit. Our knowledge of the Earth's climate system depends largely on our understandingof physical processes and integration of those processes in numerical models. The project will continuemaking fundamental progress in upper ocean physics, in improving physics in climate models, and inunderstanding the sensitivity of climate to upper ocean processes.Broader impacts. The proposed research has many broader implications. Most obviously, climate has an enormous impact on the human condition, and the project is directly focused on improving the ocean component of the climate models that simulate and attempt to predict climate and climate change. Two young scientists and three postdocs (among the most promising talents in the field) will be trained in the area of climate research and ocean modeling. The team has also been active in a number of outreach activities and meets for yearly workshops to disseminate early results. Special sessions on Eddy-Mixed Layer Interactions has been organized at major scientific meeting and a web-site (http://cpt-emilie.org/) was created to advertise the research under way and workshop activities.This project is a contribution to the U.S. CLIVAR (CLImate VARiability and predictability) program.

0612154在此气候建模和过程团队中，主要目标是在IPCC级气候模型模型中为涡流边界层和附近的涡流传输进行制定和测试。数据和非常高分辨率的数值模型的组合已用于研究上海上的涡流动力学。使用这项工作，已在社区气候模型中制定并实现了绝型表面层中尺度涡流传输的参数化方案，以及由子尺度涡流驱动的参数化方案。它们对海洋平均状态有很大的影响，尤其是靠近地面的状态。这些修改可能会通过对空气海交换的影响在耦合模型中的气候灵敏度。将研究对耦合气候模型的一些含义。具体而言，此续约将在以下领域完成工作：在NCAR，GFDL和MIT中完成新的参数化的实施，并研究其在耦合的海洋 - 大气模型中的影响。将模型输出与从全球数据集估算的模型输出与涡流统计数据进行比较，并从未来三年可从海洋现场活动中获得的新数据进行比较。在上海中完成了中海中尺寸相互作用的过程研究，对限制性，风力强迫和额发生的作用有特殊重视。修改新的参数化，以说明上海物理学的新方面，直到最近才揭示出智能的优点。我们对地球气候系统的了解在很大程度上取决于我们对物理过程的理解以及这些过程在数值模型中的整合。该项目将在上海物理学，改善气候模型中的物理学以及掩盖气候对上海过程的敏感性方面的基本进步。拟议的研究具有许多更广泛的含义。最明显的是，气候对人类状况具有巨大的影响，该项目直接集中在改善气候模型的海洋组成部分，以模拟和试图预测气候变化和气候变化。将在气候研究和海洋建模领域接受两名年轻科学家和三个博士后（该领域最有希望的人才）。该团队还活跃于许多外展活动，并开会年度研讨会以传播早期结果。在大型科学会议上已经组织了有关涡流层相互作用的特殊会议，并创建了一个网站（http://cpt-emilie.org/）来宣传正在进行的研究和研讨会活动。该项目是对美国Clivar（气候可变性和可预测性）计划的贡献。