Capturing Oceanic Submesoscales, Stirring and Mixing with Sound and Simulations

通过声音和模拟捕捉海洋亚尺度、搅拌和混合

• 批准号: EP/Y014693/1
• 负责人: Katy Sheen
• 金额: $ 322.54万
• 依托单位: UNIVERSITY OF EXETER
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY014693%2F1
• 关键词: Capturing; Oceanic; Submesoscales; Stirring; Mixing

Capturing Oceanic Submesoscales, Stirring, and Mixing with Sound and Simulations (COSSMoSS) will tackle one of the most pressing questions in oceanography: what processes drive energy transfer and property distributions within the interior ocean? The global oceans underpin our climate and biosphere by distributing and storing tracers such as heat, carbon and nutrients. Yet, little is known about the submesoscale currents (SMCs) that both stir and mix these fundamental properties, and bridge large scale flows with microscale dissipation. Characterised by spatial scales of 10 m to 100 km, and timescales of hours to weeks, SMCs are inherently difficult to observe and model.COSSMoSS presents a pioneering experiment that will capture these unresolved interior phenomena at a global hotspot of ocean-basin interchange: the Brazil-Malvinas Confluence (BMC). Here Atlantic and Southern Ocean waters collide and exchange heat, salt, oxygen, carbon and nutrients. Sharp lateral gradients, energetic flows, and sloping topography are highly conducive to SMC generation, stirring, and mixing. Active acoustics will be combined for the first time with autonomous and vessel-based instrumentation to sample the BMC at unprecedented resolutions that capture SMCs. In parallel, observations will validate and advance cutting-edge simulations, to quantify SMC initiation, ubiquity and interactions. By revealing interior ocean dynamics in unparalleled detail, COSSMoSS will shed light on the pathways of oceanic tracer and energy exchange, leading to an improved understanding of our future biosphere and climate.My unique combination of expertise in ocean acoustics, dynamics, and research at sea, make me the ideal leader for COSSMoSS. While driving forward a new international collaboration with project partner Prof. J. McWilliams (University of California Los Angeles), I will use my demonstrated research independence, global profile, and leadership skills to ensure its success.

捕获海洋的子测量，搅拌并与声音和模拟混合（Cossmoss）将解决海洋学中最紧迫的问题之一：哪些过程驱动了内部海洋内的能量转移和财产分布？全球海洋通过分发和存储示踪剂（例如热，碳和养分）来支撑我们的气候和生物圈。然而，关于搅拌和混合这些基本特性的集合尺度电流（SMC）知之甚少，以及随着微观耗散的大规模流动。 SMC以10 m至100 km的空间尺度为特征，SMC本质上很难观察和模型。Cossmoss提出了一个开创性的实验，该实验将捕获这些未解决的内部现象，该现象在海洋 - 巴斯氏菌的全球热点处捕获了海洋 - 巴西氏菌的全球热点：巴西 - 马尔维那斯融合（BMALVINAS Confluncon）（BMC）。在这里，大西洋和南部海水碰撞并交换热量，盐，氧气，碳和养分。锋利的侧向梯度，能量流和倾斜地形极大地有助于SMC的产生，搅拌和混合。主动声学将首次与自主和基于容器的仪器合并，以在捕获SMC的前所未有的分辨率下对BMC进行采样。同时，观察结果将验证和提前尖端模拟，以量化SMC启动，无处不在和相互作用。通过在无与伦比的细节中揭示内部海洋动力学，Cossmoss将阐明海洋示踪剂和能量交换的途径，从而提高了对我们未来的生物圈和气候的了解。我在海洋声学，动力学和海洋研究中的独特专业知识组合，使我成为Cossmoss的理想领导者。在推动与项目合作伙伴J. McWilliams教授（加利福尼亚大学洛杉矶分校）一起进行新的国际合作时，我将使用我展示的研究独立性，全球知名度和领导能力来确保其成功。