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: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=708348
• 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特性的影响的观测和建模研究，了解西北大西洋的物理和生态动态。 对海洋动力学的进一步了解将为环境政策提供信息，并加强海洋用户，如捕鱼者，航运公司和其他开发海洋资源的人的业务。主要成果将是：（1）通过开发新的取样系统和创新的使用方法，提高了观察海洋的能力;（2）提高了对沿海海湾潮汐和风力动力学的认识;（3）直接测量西北大西洋大尺度环流中解释的热量和淡水输送。感兴趣的时间尺度范围从每日到季节，年际和十年。这项工作的新奇在于实验，数值和建模方法的结合。 该方法包括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，提高我们在西北大西洋冰雪覆盖的沃茨取样的能力，将滑翔机和系泊设备结合起来，以测量西北大西洋的海洋学状况。 我们将把联合收割机的历史数据与我们的实地研究数据结合起来，包括我们在大陆架和沿海海湾和峡湾的系泊和滑翔机部署的结果。现场取样将受益于正在进行的国家和国际方案，如气体交换研究（生命）和赤道翻转环流研究（OSNAP）。 数值模型将用于整合数据，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调查冰山，这些技术可供在冰覆盖的沃茨勘探石油和天然气的公司使用。对海洋动力学的更好理解和模型的改进将有助于更好地预测海洋对气候变化，包括对十年期大气模式变化的反应。对西北大西洋海洋迁移的直接测量将与北大西洋的其他观测联系起来，以了解海洋迁移与当地和非当地事件的大规模联系。 将这些方法整合到一个单一的程序中，将产生对海洋和生态系统动力学的关键物理过程的作用的全面解释。