SWEL: Surface Wave effects on upwelling and Ecosystems Linkages

SWEL：表面波对上升流和生态系统联系的影响

• 批准号: 2343297
• 负责人: Delphine Hypolite
• 金额: $ 96.88万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-02-01 至 2027-01-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2343297&HistoricalAwards=false
• 关键词: SWEL; Surface; Wave; effects; upwelling

SWEL: Surface Waves effects on upwelling and Ecosystem LinkagesRising temperatures and increased carbon in our oceans are creating many challenges for marine life. For example, seawater is becoming more acidic waters and lower in oxygen levels, affecting many sea creatures. These changes can harm fish, and thus the fishing industry, but threatens ocean biodiversity more generally. Additionally, harmful algal blooms, which can be toxic, are occurring more frequently, presenting risks to both sea life and human health. It is important to understand better the physical and chemical processes that are involved in these changes. This project aims to precisely do that by using advanced computer models and real-world data while training young ocean scientists.Contemporary global ocean biogeochemical models have limitations in computational power and are unable to capture small-scale ocean phenomena, such as small scales currents (of size 100m to 1km) and the influence of surface waves. Yet, emerging research indicates that these small-scale processes have a significant impact on ocean chemistry and life. Notably, the role of surface gravity waves appears to modify small-scale motions. Including wave effects could substantially improve simulations of the ocean's chemistry, but direct measurements of these fine-scale ocean characteristics are rare and difficult to obtain. The difficulty makes numerical models an indispensable tool for exploring these small scale features. This project focuses on the California Current System and will resolve some of the very small features and wave dynamics. The results from these simulations will inform future measurement and sampling plans, help to evaluate the impact of waves on marine chemical cycles, and refine how these effects can be represented in broader climate models.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.

SWEL：表面波对上升流和生态系统联系的影响海洋温度上升和碳增加给海洋生物带来了许多挑战。例如，海水的酸性越来越强，含氧量越来越低，影响了许多海洋生物。这些变化可能会损害鱼类，从而损害渔业，但更广泛地威胁到海洋生物多样性。此外，可能有毒的有害藻类水华正在更频繁地发生，对海洋生物和人类健康都构成了风险。更好地了解这些变化所涉及的物理和化学过程是很重要的。该项目旨在通过使用先进的计算机模型和真实世界的数据，同时培训年轻的海洋科学家，精确地做到这一点。目前的全球海洋生物地球化学模型在计算能力方面存在局限性，无法捕捉小尺度海洋现象，如小尺度洋流(100米至1公里)和表面波的影响。然而，新出现的研究表明，这些小规模的过程对海洋化学和生命有重大影响。值得注意的是，表面重力波的作用似乎改变了小规模的运动。包括海浪效应可以大大改善对海洋化学的模拟，但对这些细微尺度的海洋特征的直接测量是罕见的，而且很难获得。这一困难使得数值模型成为探索这些小尺度特征不可或缺的工具。这个项目的重点是加州目前的系统，并将解决一些非常小的特征和波浪动力学。这些模拟的结果将为未来的测量和采样计划提供信息，帮助评估海浪对海洋化学循环的影响，并改进如何在更广泛的气候模型中表示这些影响。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。