Collaborative Research - SGER - Model Verification of Radiation of Barotropic Energy from the Gulf Stream

合作研究 - SGER - 墨西哥湾流正压能量辐射模型验证

基本信息

批准号：
0404499
负责人：
Douglas Luther
金额：
$ 1.5万
依托单位：
University of Hawaii
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2004
资助国家：
美国
起止时间：
2004-04-15 至 2005-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0404499&HistoricalAwards=false
关键词：
Collaborative Research SGER Model Verification

项目摘要

0404499/0401385/0405766A fundamental process by which ocean currents lose the energy acquired from the wind will be explored through analyses of output from state-of-the-art ocean general circulation models. The main goal is to determine the characteristics of radiation of barotropic energy away from the Gulf Stream system. The results will then be used to guide the design of a field program to observe the phenomenon. It is not a priori certain that the modern ocean general circulation models are properly simulating the physics of mesoscale barotropic variability in the presence of strong currents (like the Gulf Stream) and realistic topography. The end result of this work, which will include model comparisons with real ocean data, might only reveal the inadequacies of the models, while providing little insight into the nature of barotropic radiation in the real ocean. At least, information about the ability (or lack thereof) of modern models to simulate the ocean's barotropic variability should lead to model improvements. Broader Impacts. The results from this work will provide information on a phenomenon that is important to the dynamics of ocean currents but is difficult to isolate. Insofar as this information leads to improvements of models of the ocean's general circulation, one can expect subsequent improvements in studies of phenomena that rely on such models, e.g., studies of climate variability, ecosystem evolution, and CO2 sequestration, to name just a few broader applications.

0404499/0401385/0405766将通过分析最先进的海洋环流模型的输出来探索洋流失去从风中获得的能量的基本过程。主要目标是确定远离湾流系统的正压能量的辐射特征。然后，结果将用于指导现场计划的设计以观察该现象。不能先验地确定现代海洋环流模型是否正确模拟了存在强洋流（如墨西哥湾流）和现实地形的情况下中尺度正压变率的物理现象。这项工作的最终结果将包括模型与真实海洋数据的比较，可能只会揭示模型的不足之处，而无法深入了解真实海洋中正压辐射的性质。至少，有关现代模型模拟海洋正压变化的能力（或缺乏能力）的信息应该会导致模型的改进。更广泛的影响。这项工作的结果将提供有关对洋流动力学很重要但难以分离的现象的信息。只要这些信息导致了海洋环流模型的改进，人们就可以预期依赖于这些模型的现象研究将得到后续改进，例如气候变化、生态系统演化和二氧化碳封存等更广泛的研究。应用程序。