Support for the U.S. GEOTRACES Project Office

该奖项支持美国GEOTRACES项目办公室三年的资金，以协调和支持美国机构的调查人员的活动，他们正在履行GEOTRACES的使命，特别是：“确定控制海洋中关键微量元素和同位素（TEI）分布的过程和量化通量，并确定这些分布对环境条件变化的敏感性。为了完成这一使命，并从中获得好处，GEOTRACES正在与建模和合成密切合作，并在分析方法持续相互校准的坚实基础的支持下，对全球海洋剖面进行观测。项目范围内的数据管理系统确保项目完成后项目的结果将长期存在。美国GEOTRACES项目办公室在确保美国对使命的贡献取得成功和促进国际GEOTRACES数据管理和综合倡议方面发挥领导作用。该奖项为项目办公室人员、规划和考察相关研讨会、促进GEOTRACES综合的活动以及促进更广泛的科学界以及学习者、政策制定者和其他利益相关者使用GEOTRACES产品的活动提供支持。美国GEOTRACES正处于其计划的后半部分，以完成海洋部分的优先顺序。该奖项将资助美国GEOTRACES项目办公室履行其职责，即协调两个即将到来的探险的实施，包括组织研讨会，支持参与每个探险的数十名主要研究人员及其学生和博士后，并提供从规划到采样到数据合成的研究框架。在该计划的这一阶段，综合是一个优先事项，也就是说，解释测量的TEI分布，目标是确定海洋中TEI的主要来源，量化调节TEI供应和去除的过程的速率，并评估TEI在碳和主要营养物的生物地球化学循环中的作用。许多这些综合活动不仅超越学科界限，而且涉及国际伙伴关系。项目办公室将继续通过大型综合会议和小型综合工作组相结合的方式促进和便利这些活动。这些活动的产品将投入海洋生物地球化学循环的建模，评估TEI分布对不断变化的环境条件的敏感性。作为联合国海洋科学十年的一部分，项目办公室将领导美国利用GEOTRACES研究结果以更可持续的方式利用海洋的努力。该奖项反映了NSF的法定使命，并且通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This award supports three years of funding for the U.S. GEOTRACES Project Office to coordinate and support the activities of investigators at U.S. institutions who are fulfilling the GEOTRACES mission, specifically: “To identify processes and quantify fluxes that control the distributions of key trace elements and isotopes (TEIs) in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions.” To fulfill this mission, and achieve benefits derived from doing so, GEOTRACES is making observations spanning a global array of ocean sections in close collaboration with modeling and synthesis, and supported by a solid foundation of ongoing intercalibration of analytical methods. A program-wide data management system ensures that the results of the program will live long after the program is completed. The U.S. GEOTRACES Project Office takes leadership in ensuring success of U.S. contributions to the mission and in promoting the international GEOTRACES data management and synthesis initiatives. This award provides support for Project Office personnel, for planning and expedition-related workshops, for activities contributing to GEOTRACES synthesis, and for activities that facilitate the use of GEOTRACES products by the broader scientific community as well as learners, policy makers, and other stakeholders. U.S. GEOTRACES is in the second half of its plan to complete a prioritized sequence of ocean sections. This award will fund the U.S. GEOTRACES Project Office to carry out its role, namely to coordinate the implementation of two upcoming expeditions, including the organization of workshops that support the dozens of principal investigators involved in each expedition, together with their students and post docs and to provide a research framework from planning through sampling to data synthesis. At this phase of the Program, synthesis is a priority, that is, to interpret measured distributions of TEIs with the goal of identifying the principal sources of TEIs in the ocean, quantifying the rates of processes that regulate TEI supply and removal, and assessing the role of TEIs in biogeochemical cycles of carbon and major nutrients. Many of these synthesis activities not only transcend disciplinary boundaries but involve international partnerships. The Project Office will continue to promote and facilitate these activities through a combination of large synthesis meetings and smaller synthesis working groups. Products of these activities will feed into modeling of the ocean biogeochemical cycles that assesses the sensitivity of TEI distributions to changing environmental conditions. The Project Office will lead efforts in the U.S. to exploit GEOTRACES findings to use the ocean in a more sustainable fashion as part of the UN Decade of Ocean Science.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.