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这个气候建模和过程团队的主要目标是在IPCC级气候模型参数化中制定和测试地表边界层内和附近的涡流传输。数据和超高分辨率数值模型的结合已被用来研究上层海洋的涡流动力学。利用这项工作，在社区气候模型中制定并实施了非绝热表面层中尺度涡流输运的参数化方案和亚中尺度涡流驱动的重分层参数化方案。它们对海洋平均状态有很大影响，尤其是靠近海面的区域。这些修改可能通过对海气交换的影响来暗示耦合模型中的气候敏感性。将研究耦合气候模型的一些影响。具体来说，本次更新将完成以下几个方面的工作：完成 NCAR、GFDL 和 MIT 海洋气候模型中新参数化的实施，并研究它们对海洋-大气耦合模型的影响。将模型输出与根据全球数据集和未来三年海洋学实地活动将提供的新数据估计的涡流统计数据进行比较。完成上层海洋中尺度-亚尺度相互作用的过程研究，特别强调再分层、风力强迫和锋生的作用。修改新的参数化以解释团队最近才揭示的上层海洋物理的新方面。智力价值。我们对地球气候系统的了解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。该项目将继续在上层海洋物理学、改进气候模型中的物理学以及理解气候对上层海洋过程的敏感性方面取得根本性进展。更广泛的影响。拟议的研究具有许多更广泛的影响。最明显的是，气候对人类状况有着巨大的影响，该项目的直接重点是改进模拟和尝试预测气候和气候变化的气候模型的海洋部分。两名年轻科学家和三名博士后（该领域最有前途的人才）将接受气候研究和海洋建模领域的培训。该团队还积极参与了许多外展活动，并每年召开研讨会以传播早期成果。在主要科学会议上组织了关于涡流混合层相互作用的特别会议，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（气候变化和可预测性）计划。