Ocean Dynamics in the Northwest Atlantic

西北大西洋的海洋动力学

• 批准号: RGPIN-2015-04970
• 负责人: deYoung, Brad
• 金额: $ 2.4万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=649190
• 关键词: Ocean; Dynamics; Northwest; Atlantic

My long-term goal is to understand the physical and ecological dynamics of the Northwest Atlantic through observational and modeling studies of the influences on the ocean circulation and water properties. Improved understanding of ocean dynamics will inform environmental policy and enhance operations for ocean users such as fish harvesters, shipping companies and others exploiting ocean resources. Key outcomes will be: (1) an improved ability to observe the ocean through the development of new sampling systems and innovative approaches to their use; (2) improved understanding of tidal and wind-forced dynamics of coastal embayments and (3) direct measurements of the transport of heat and freshwater interpreted in the larger-scale circulation of the Northwest Atlantic. The time scales of interest range from the daily to the seasonal, interannual and decadal. The novelty of this work lies in the combination of experimental, and numerical and modeling approaches. *** The approach involves integrating innovative observational oceanographic studies with advanced numerical modeling. We will develop new technologies to improve our ability to sample in the ice-covered waters of the Northwest Atlantic, integrating gliders and moorings, to measure oceanographic conditions in the Northwest Atlantic. We will combine historical data with data from our field studies, including results from our mooring and glider deployments on the shelf and in the coastal bays and fjords. The field sampling will benefit from ongoing national and international programs, such as the gas exchange study (Vitals) and the meridional overturning circulation study (OSNAP). *** Numerical models will be used to integrate the data and to explore key processes buried in the observations. We will work with existing models and develop new models and modeling approaches to improve our understanding of the data. New models and modeling approaches will enable the oceans community to better predict ocean features, such as the response of coastal sea level to the passage of a hurricane. *** The benefits to Canada of this research will include new techniques, such as using ocean gliders to survey icebergs, that could be used by companies exploring for oil and gas in ice-infested waters. The improved understanding of ocean dynamics and improved models will enable enhanced prediction of the oceans response to changing climate, including changing decadal atmospheric patterns. The direct measurements of ocean transport in the Northwest Atlantic will be linked with other North Atlantic observations to build an understanding of the large-scale connections of ocean transport related to both local and non-local events. Integration of these approaches into a single program will yield a comprehensive interpretation of the role of the critical physical processes for ocean and ecosystem dynamics. **

我的长期目标是通过对海洋环流和水性质的影响的观测和模拟研究，了解西北大西洋的物理和生态动态。更好地了解海洋动态将为环境政策提供信息，并加强海洋使用者的业务，如鱼类采集船、航运公司和其他开发海洋资源的机构。主要成果将是：(1)通过开发新的采样系统和使用海洋的创新方法，提高观测海洋的能力；(2)提高对沿海海湾的潮汐和风力动力的了解；(3)直接测量西北大西洋较大尺度环流中解释的热量和淡水的输送。利息的时间尺度从每日到季节性、年际和年代际不等。这项工作的新颖性在于将实验方法、数值方法和建模方法相结合。*该方法涉及将创新的观测海洋学研究与先进的数值模拟相结合。我们将开发新技术，以提高我们在西北大西洋冰盖水域采样的能力，整合滑翔机和系泊设备，以测量西北大西洋的海洋条件。我们将把历史数据与实地研究的数据结合起来，包括我们在货架上以及在海岸海湾和峡湾部署系泊和滑翔机的结果。现场采样将受益于正在进行的国家和国际项目，如气体交换研究(VITALS)和子午线翻转环流研究(OSNAP)。*将使用数值模型来整合数据并探索隐藏在观测中的关键过程。我们将使用现有的模型，并开发新的模型和建模方法，以提高我们对数据的理解。新的模型和建模方法将使海洋界能够更好地预测海洋特征，例如沿海海平面对飓风经过的反应。*这项研究给加拿大带来的好处将包括新技术，例如使用海洋滑翔机测量冰山，这些技术可以被公司用来在冰川出没的水域勘探石油和天然气。对海洋动力学的更好理解和改进的模型将能够加强对海洋对气候变化的反应的预测，包括变化的十年大气模式。对西北大西洋海洋运输的直接测量将与北大西洋的其他观测联系起来，以了解与当地和非当地事件有关的海洋运输的大范围联系。将这些方法整合到一个单独的计划中，将产生对海洋和生态系统动态的关键物理过程的作用的全面解释。**