Collaborative Research: NSFGEO-NERC: MEZCAL: Methods for Extending the horiZontal Coverage of the Amoc Latitudinally and back in time (MEZCAL)

合作研究：NSFGEO-NERC：MEZCAL：扩展 Amoc 纬度和时间回水平覆盖范围的方法 (MEZCAL)

• 批准号: 2409764
• 负责人: Isabela Le Bras
• 金额: $ 21.79万
• 依托单位: Woods Hole Oceanographic Institution
• 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: 2023-12-15 至 2026-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2409764&HistoricalAwards=false
• 关键词: Collaborative; Research; NSFGEO; NERC; MEZCAL

The overarching aim of MEZCAL is to make a step change in monitoring the spatiotemporal evolution of the Atlantic meridional overturning circulation (AMOC) from indirect observations. MEZCAL will achieve this aim by delivering the following objectives: O1) Design and implement a spatiotemporally complete AMOC framework from indirect observations using proven reconstruction techniques. O2) Extend AMOC records backwards in time using machine learning and adjoint methods. O3) Make recommendations for an AMOC monitoring framework and enhanced observations to ensure a sustainable future AMOC monitoring system. In addition to contributing important scientific advancements relevant to our changing climate, this project will support two early career scientists (Le Bras and Amrhein) as well as a postdoc. Le Bras is committed to communicating the results of this project to a broad audience through talks with students, the public, and media platforms. She will continue to participate in organizing efforts for the oceanographic LGBTQ+ community. With support from this project and NSF-supported project FOCUS (OCE-2123692), Piecuch will ensure that findings from MEZCAL and the sea-level implications are communicated to coastal stakeholders and practitioners. Amrhein is committed to developing community software and scientific resources through efforts with the Community Earth System Model and NCAR, including spearheading data assimilation and regional modeling efforts to communicate climate impacts across scales. He is also an active member of the paleoclimate modeling and data community, and will serve as a cross-disciplinary bridge for AMOC science. By extending observation-based AMOC records spatially and backwards in time, MEZCAL will enable significant scientific discovery. It will address whether the AMOC has declined in the last century, and what the meridional connectivity and structure of the AMOC is: both important questions to address to better understand our climate system. MEZCAL will provide recommendations for the AMOC observing system, which will benefit the wider oceanographic observing community, and the modeling work will provide insight into climate model biases.This is a project jointly funded by the National Science Foundation’s Directorate for Geosciences (NSF/GEO) and the National Environment Research Council (NERC) of the United Kingdom (UK) via the NSF/GEO-NERC Lead Agency Agreement. This Agreement allows a single joint US/UK proposal to be submitted and peer-reviewed by the Agency whose investigator has the largest proportion of the budget. Upon successful joint determination of an award recommendation, each Agency funds the proportion of the budget that supports scientists at institutions in their respective countries.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.

MEZCAL 的总体目标是通过间接观测来监测大西洋经向翻转环流 (AMOC) 的时空演变，从而实现这一目标。 MEZCAL 将通过实现以下目标来实现这一目标： O1) 设计和实施一个完整的时空 AMOC 框架。使用经过验证的重建技术进行间接观察 O2) 使用机器学习和伴随方法向后扩展 AMOC 记录 O3) 为 AMOC 监测框架和增强观察提出建议。为了确保未来 AMOC 监测系统的可持续发展，除了为与气候变化相关的重要科学进步做出贡献外，该项目还将支持两位早期职业科学家（Le Bras 和 Amrhein）以及一名博士后，Le Bras 致力于传达结果。在该项目和 NSF 支持的 FOCUS 项目的支持下，她将通过与学生、公众和媒体平台的对话，继续参与海洋学 LGBTQ+ 社区的组织工作。 (OCE-2123692)，Piecuch 将确保将 MEZCAL 的研究结果和海平面影响传达给沿海利益相关者和从业者，Amrhein 致力于通过社区地球系统模型和 NCAR 的努力开发社区软件和科学资源，包括带头。他也是古气候建模和数据界的积极成员，并将成为 AMOC 科学的跨学科桥梁。基于观测扩展的 AMOC 记录空间和时间倒退，MEZCAL 将实现重大科学发现，它将解决 AMOC 在上个世纪是否已经衰落，以及 AMOC 的经向连通性和结构是什么：这两个重要问题都需要解决。 MEZCAL将为AMOC观测系统提供建议，这将使更广泛的海洋观测界受益，而建模工作将提供对气候模型偏差的洞察。这是一个由美国国家科学基金会联合资助的项目。通过 NSF/GEO-NERC 牵头机构协议，地球科学理事会 (NSF/GEO) 和英国国家环境研究委员会 (NERC) 可以提交一份单一的美国/英国联合提案并进行同行评审。 -由其研究人员拥有最大预算比例的机构进行审查。在成功确定联合资助建议后，每个机构资助各自国家机构科学家的预算比例。该资助是 NSF 的法定使命，并已得到批准。认为值得支持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。