CAREER: Unraveling the Role of the Varying Ocean Circulation in Climate Change

职业：揭示海洋环流变化在气候变化中的作用

• 批准号: 2237743
• 负责人: Wei Liu
• 金额: $ 79.99万
• 依托单位: University of California-Riverside
• 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: 2023-05-01 至 2028-04-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2237743&HistoricalAwards=false
• 关键词: CAREER; Unraveling; Role; Varying; Ocean

Varying ocean circulations play an important role in climate change. These circulations are driven by surface winds and the changing buoyancy of the sea. Separating the effects of wind- and buoyancy-driven ocean circulations on climate change from the effects of other varying and interacting climate components is difficult. By isolating and quantify the effects that drive the ocean, the main goal of this project is to obtain an in-depth understanding of the role of varying ocean circulations in on-going and future climate changes. The work can help quantify the climate impacts of the ocean circulations (such as storm track shift and tropical rain-belt migration), thereby advancing climate predictions. Along with course developments and public outreach, the project will train young scientists at the University of California Riverside. The project will apply a novel ensemble-overriding method to multiple climate models to address several key questions: (1) What are the effects of wind- and buoyancy-driven ocean circulation changes under various anthropogenic forcings? (2) How to understand the coupled changes in extratropical atmospheric circulation and wind-driven gyre circulation? (3) How will Southern Ocean circulation change contribute to climate response to anthropogenic forcing? (4) How to understand the distinct changes and climate impacts of the simulated historical Atlantic meridional overturning circulations between the latest two generations of climate models? The activities will help train one postdoctoral scholar and one Ph.D. student. The investigator will incorporate project results into an undergraduate course and mentor undergraduate students in research at University of California Riverside, conduct workshops and give public lectures at Museum of Riverside, and conduct summer research program for Riverside Unified School District K-12 students.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.

不同的海洋循环在气候变化中起着重要作用。这些循环是由表面风和海洋浮力变化驱动的。很难将风和浮力驱动的海洋循环的影响与其他变化和相互作用的气候成分的影响分开。通过隔离和量化驱动海洋的影响，该项目的主要目标是深入了解各种海洋循环在正在进行和未来气候变化中的作用。这项工作可以帮助量化海洋循环的气候影响（例如风暴轨道的转移和热带雨水迁移），从而提高气候预测。除了课程发展和公共宣传外，该项目还将在加利福尼亚大学河滨大学培训年轻科学家。该项目将在多个气候模型中应用一种新颖的整体跨越方法，以解决几个关键问题：（1）在各种人为强迫下，风和浮力驱动的海洋循环变化有什么影响？ （2）如何理解诱发大气循环和风驱动回旋循环的耦合变化？ （3）南洋循环的变化将如何导致气候对人为强迫的反应？ （4）如何理解最新两代气候模型之间模拟历史上的大西洋经合倾覆的循环的不同变化和气候影响？这些活动将有助于培训一名博士后学者和一位博士学位。学生。该研究者将在加利福尼亚大学河滨大学的研究中将项目结果和导师本科生纳入，进行讲习班，并在河滨博物馆进行公开演讲，并为河滨统一的K-12区研究夏季研究计划进行夏季研究计划。该奖项颁发了NSF的法定任务，并反映了通过评估律师的支持者的构成群体的范围。

项目成果

The Pacific Decadal Oscillation modulated marine heatwaves in the Northeast Pacific during past decades

• DOI: 10.1038/s43247-023-00863-w
• 发表时间: 2023-06
• 期刊: Communications Earth & Environment
• 作者: Xianglin Ren;Wei Liu;A. Capotondi;D. Amaya;N. Holbrook