Collaborative Research: Submesoscale frontal dynamics and exchange at an upwelling bay

合作研究：上升流海湾的亚尺度锋面动力学和交换

• 批准号: 2242165
• 负责人: Christopher Edwards
• 金额: $ 40.63万
• 依托单位: University of California-Santa Cruz
• 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=2242165&HistoricalAwards=false
• 关键词: Collaborative; Research; Submesoscale; frontal; dynamics

This study will examine physical processes associated with fronts that develop off a coastline point in San Luis Obispo Bay, at the transition of zones exposed to and protected from winds. Information for the study will be derived from measurements of flows, temperature, salinity, and dissolved oxygen obtained from instruments carried on a ship and fixed to the bottom of the ocean. These data will be supplemented by computer model results at different spatial scales, able to resolve the fronts. Additionally, the processes at fronts will be compared to theoretical considerations. The study will suggest ecological implications of the physical processes that generate and dissipate the fronts. The project will support early-career scientists and will recruit historically underserved students. It will generate graphic art related to the project’s findings that will be displayed in an aquarium and used for outreach activities. The proposed work has the goal of examining cross-shelf submesoscale exchange processes associated with persistent thermal fronts downstream of topographic features in an upwelling bay, concentrating on the influence of sea breezes. The goal will be addressed with coordinated high-resolution measurements of turbulent mixing (surveys and moorings of hydrography, velocity and microstructure profiles) together with high-resolution modeling efforts. The study focuses on a frontal feature in a bay, San Luis Obispo Bay, that is impacted by hypoxia and algal blooms. Biologically relevant measurements (notably DO) will enable examination of the biological implications of the proposed cross-front exchange mechanism. The primary dynamical mechanism that will be evaluated at the cross-front exchange is the role, and validity, of the turbulent thermal wind balance. As broader impacts, the study will involve four researchers from different institutions. It will provide measurements of dissolved oxygen and will include particle-tracking calculations for larval connectivity. The project will support two early-career researchers, will adopt a field code-of-conduct and will recruit students from ‘diverse non-PhD granting institutions.’ Results will be portrayed in graphic art with descriptions in English and Spanish, to be included in a local aquarium and used in various outreach efforts.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.

这项研究将研究与圣路易斯奥比斯波湾海岸线点附近形成的锋面相关的物理过程，该锋面位于暴露于风和受风保护的区域的过渡处，该研究的信息将来自对流量、温度、盐度和盐度的测量。从船上携带并固定在海底的仪器获得的溶解氧将通过不同空间尺度的计算机模型结果进行补充，从而能够解析锋面。此外，锋面的过程将与理论考虑进行比较。该研究将建议生态该项目将支持早期职业科学家，并将招募历史上服务不足的学生，并将生成与该项目的发现相关的图形艺术，这些图形艺术将在水族馆中展示并用于推广活动。拟议工作的目标是研究与上升湾地形特征下游的持续热锋相关的跨陆架亚中尺度交换过程，重点关注海风的影响。该目标将通过协调的高分辨率来解决。湍流混合的测量（水文学、速度和微观结构剖面的调查和系泊）以及高分辨率建模工作该研究重点关注圣路易斯奥比斯波湾的一个受缺氧和藻类繁殖影响的锋面特征。相关测量（特别是 DO）将能够检查拟议的跨前沿交换机制的生物学影响 将在跨前沿交换中评估的主要动力机制是该机制的作用和有效性。作为更广泛的影响，该研究将涉及来自不同机构的四名研究人员，它将提供溶解氧的测量，并将包括幼虫连通性的粒子跟踪计算，该项目将支持两名早期职业研究人员。领域行为准则，并将从“不同的非博士学位授予机构”招收学生。结果将以图形艺术形式描绘，并附有英语和西班牙语描述，将被纳入当地水族馆并用于各种外展活动。反映通过使用基金会的智力价值和更广泛的影响审查标准进行评估，NSF 的法定使命被认为值得支持。