Collaborative Research: Evolution and fate of wind-derived internal wave energy

合作研究：风生内波能的演化和命运

• 批准号: 2319610
• 负责人: Jonathan Lilly
• 金额: $ 24.27万
• 依托单位: Planetary Science Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2319610&HistoricalAwards=false
• 关键词: Collaborative; Research; Evolution; fate; wind

This project will study the global distribution of two main ocean properties. One is the fraction of wind-related energy that propagates into the ocean’s interior compared to the energy that is dissipated near the ocean’s surface, referred to as ‘transmissivity’. The second property to study, also related to wind-induced energy in the ocean, is the fraction of energy that goes into mixing compared to the total dissipative energy (mixing plus dissipation), also known as ‘mixing efficiency’. The study will use a high-resolution (order few meters), process-based numerical model, the ‘wave-vortex model’ to determine the interaction mechanisms associated with transmissivity and mixing efficiency, and to calculate them on a global scale. The result will assess the role of wind-driven oscillations, in the interior of the ocean, on the ocean’s energy budget, which shall improve models of ocean circulation and climate. The study will support an early-career female researcher, who will help other junior scientists improve presentation skills through an annual mentoring program, also sponsored by NSF (MPOWIR). The project will produce materials for an additional yearlong mentorship program, as well as enhance educational materials that are disseminated via a web site.This study will investigate the global distribution of two parameters related to wind forcing on the ocean. One global parameter is the “transmissivity,” which is the portion of wind-related energy that propagates into the ocean’s interior compared to the energy that is dissipated near the ocean’s surface. The second global parameter is the “mixing efficiency,” which is the fraction of energy that goes into mixing compared to the total dampening energy (mixing and dissipation). The study will use a high-resolution, process-based numerical model, the ‘wave-vortex model’ to determine the nonlinear interaction mechanisms associated with the two global parameters, and to calculate them on a global scale. The result will be a quantification of the role of wind-driven near-inertial oscillations in the ocean’s energy budget. This quantification shall benefit ocean-basin circulation and climate models. The study will support an early-career female researcher, who will help other junior scientists improve presentation skills through the MPOWIR program. The project will produce materials for a yearlong mentorship program, as well as enhance educational materials in a web site.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目将研究两个主要海洋物业的全球分布。一个是与风相关的能量的一部分，与在海洋表面附近消散的能量相比，它传播到海洋的内部，称为“透射率”。与总耗散能量（混合加耗散）相比，第二种要研究的特性也与海洋中的风能的能量有关，它是混合的一部分，也称为“混合研究将使用高分辨率（几米），基于过程的数值模型（基于过程的数值模型）来确定与传输效率相关联的“波浪vortex模型”，以确定相互作用的效率，并构成了效率的效率。结果将评估风向振荡在海洋内部，海洋能量预算中的作用，这将改善海洋循环和气候模型。该研究将支持一位早期的女性研究人员，他们将通过年度心理计划帮助其他初级科学家提高演示能力，并由NSF（MPOWIR）赞助。该项目将为额外的一年心态计划生产材料，并增强通过网站传播的教育材料。这项研究将调查与海洋风力强迫有关的两个参数的全球分布。一个全球参数是“透射率”，它是与海洋内部传播到海洋内部的一部分，与在海洋表面附近消散的能量相比。第二个全局参数是“混合效率”，它是混合能量的比例，与总抑制能量（混合和耗散）相比。该研究将使用高分辨率，基于过程的数值模型，“波浪涡流模型”来确定与两个全局参数相关的非线性相互作用机制，并在全球范围内计算它们。结果将是对海洋能量预算中风驱动的近惯性振荡的作用进行量化。该数量将使海洋冰淇淋循环和气候模型受益。该研究将支持一位早期的女性研究人员，他们将通过MPOWIR计划帮助其他初级科学家提高演讲技巧。该项目将为一年的心态计划生产材料，并在网站中增强教育材料。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，被视为通过评估来获得珍贵的支持。