Workshop on the future of coastal and estuarine modeling; June 2018; North Carolina State University

关于沿海和河口建模未来的研讨会；

• 批准号: 1749613
• 负责人: Oliver Fringer
• 金额: $ 7万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-10-01 至 2018-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1749613&HistoricalAwards=false
• 关键词: Workshop; future; coastal; estuarine; modeling

Accurate numerical models are essential for improving our understanding of fundamental physical processes at coastal and estuarine scales, where the connection between human populations and the ocean are most apparent, particularly near rapidly expanding coastal megacities around the world. Models have seen significant advances in the past two decades owing to increases in computational power and improved numerical methods including unstructured grids/model nesting, data assimilation, and model coupling. Furthermore, advances in remote-sensing and in-situ observational technologies have led to substantially larger and more accurate datasets which have significantly improved the ability to assess model performance and quantify uncertainty. However, despite recent advances, a multitude of coastal and estuarine models have been developed in the past two decades, and there has been a lack of a unified approach as seen in regional modeling. This workshop will bring together model users and developers to discuss ways to improve modeling tools for scientific research in physical oceanography at coastal and estuarine scales. The budget will provide travel and participation support to U.S.-based early-career professionals, and there will be an emphasis on attracting underrepresented minorities and women to attend the workshop. Early-career scientists will interact with experienced model developers and users in an environment that focuses on discussion and collaboration, thus helping to promote a stronger community that will continue to improve the accuracy and efficiency of coastal and estuarine models.This workshop will focus on developing an understanding of the advantages and limitations of the current state-of-the-art in numerical modeling of coastal and estuarine processes and to form a consensus on key areas of research and development needed to improve the accuracy and reliability of such models. Outcomes of the workshop will include the development of a unified understanding of the pros and cons of different approaches, such as finite-volume vs. finite-element methods, curvilinear vs. unstructured grids, couplings of ocean, atmosphere, land (hydrology) models, large-eddy simulation vs. RANS turbulence modeling, as well as of different model nesting and adaptive-grid strategies. Discussions will focus on these methods along with strategies for forcing, implementation of boundary conditions, validation, testing, and uncertainty quantification, with the potential for development of a unified framework for model benchmarking. The overarching theme of the workshop will be on the unification of modeling approaches that are needed to understand emerging science topics of interest to both model users and developers. A second focus of the workshop will be to assess how the community can better leverage existing and future computational technologies to improve model performance in better resolving multiscale dynamics in estuaries and the coastal ocean. Not only is there a pressing need for the development of high performance computational strategies for improvement of individual model performance, but also for the implementation of ensemble approaches and the development of methods for data assimilation and uncertainty quantification.

准确的数值模型对于提高我们对沿海和河口量表的基本物理过程的理解至关重要，在沿海和河口量表中，人口与海洋之间的联系最为明显，尤其是在世界范围内迅速扩大的沿海巨星。由于计算能力的增加和改进的数值方法，包括非结构化的网格/模型嵌套，数据同化和模型耦合，模型在过去二十年中取得了重大进展。此外，遥感和原位观察技术的进步导致了大大更高，更准确的数据集，这些数据集已大大提高了评估模型性能和量化不确定性的能力。但是，尽管最近进步，在过去的二十年中，已经开发了许多沿海和河口模型，并且缺乏区域建模中所见的统一方法。该研讨会将汇集模型用户和开发人员，讨论改善沿海和河口量表物理海洋学科学研究的建模工具的方法。预算将为美国的早期职业专业人员提供旅行和参与支持，并将强调吸引代表性不足的少数民族和妇女参加研讨会。早期护理科学家将与经验丰富的模型开发人员和用户在讨论和协作的环境中进行互动，从而有助于促进一个更强大的社区，该社区将继续提高沿海和河口模型的准确性和效率，这将着重于建立对沿海和沿海阶段供应群体和沿海地区的统一型模型的优势的理解，以建立对沿海和河口群体的限制的理解。此类模型的准确性和可靠性。 Outcomes of the workshop will include the development of a unified understanding of the pros and cons of different approaches, such as finite-volume vs. finite-element methods, curvilinear vs. unstructured grids, couplings of ocean, atmosphere, land (hydrology) models, large-eddy simulation vs. RANS turbulence modeling, as well as of different model nesting and adaptive-grid strategies.讨论将集中在这些方法上，以及强迫，验证，测试和不确定性量化的策略，以及开发统一基准测试框架的潜力。研讨会的总体主题将取决于建模方法的统一，这些方法是了解模型用户和开发人员感兴趣的新兴科学主题。研讨会的第二个重点将是评估社区如何更好地利用现有和未来的计算技术，以改善在更好地解决河口和沿海海洋的多尺度动态方面的模型性能。不仅需要开发高性能计算策略来改善单个模型绩效，还需要实施整体方法以及开发数据同化和不确定性量化方法。