Support for the U. S. GEOTRACES Project Office

对美国 GEOTRACES 项目办公室的支持

• 批准号: 1829563
• 负责人: Robert Anderson
• 金额: $ 123.32万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-10-01 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1829563&HistoricalAwards=false
• 关键词: Support; U.; S.; GEOTRACES; Project

This award would support the work of 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." Trace elements such as iron, cobalt and zinc occur in the ocean at ultra-low concentrations. Their low abundance is thought to influence the health and fertility of marine ecosystems. Consequently, gaining an accurate knowledge of the processes that regulate the distribution of these elements in the ocean forms a key contribution to sustainable management of marine resources. To fulfill the GEOTRACES mission, and achieve benefits derived from doing so, GEOTRACES is making observations spanning a global array of ocean sections in close connection with numerical modeling, and supported by a solid foundation of ongoing intercalibration of analytical methods and a program-wide data management system. The U.S. GEOTRACES Project Office takes leadership in ensuring successful completion of US GEOTRACES contributions in support of the mission and in leading the international GEOTRACES data management and synthesis initiatives. The award supports project office personnel, working groups contributing to GEOTRACES synthesis, events that facilitate the use of GEOTRACES products by the broader community, and workshops for expedition planning and data analysis.US GEOTRACES is in the middle of a decade-scale plan to complete a prioritized sequence of ocean sections. Synthesis activities will interpret distributions of TEIs measured along these sections to identify the principal sources of TEIs in the ocean and, in many cases, to quantify the rates of processes that regulate TEI supply and removal. Synthesis activities, furthermore, assess the role of TEIs in biogeochemical cycles of carbon and major nutrients, including bioavailability of micronutrients together with their biological uptake and regeneration throughout the water column. Products of these activities will feed into modeling of the ocean biogeochemical cycles that assesses the sensitivity of TEI distributions to changing environmental conditions. Building and improving the GEOTRACES data management system will be an ongoing process throughout the proposed funding period. As co-chair of the standing committee responsible for the structure of the GEOTRACES data product, Anderson will work closely with the Data Management Committee throughout the process. The primary goal for the immediate future is to replace the current system, which involves manual transfer of Excel workbooks and Google docs between the three committees that handle data, the GEOTRACES Data Assembly Center, and the individual who assembles the data products, with an automated system shared by all involved that eliminates manual transfer of individual data sets. It is anticipated that developing the new data system will take two years, so the process will begin in the spring of 2018 to ensure that the system is available in time to prepare the next intermediate data product, scheduled for release in 2021.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.

该奖项将支持美国地理领域项目办公室的工作，以协调和支持正在履行GeoTraces任务的美国机构的调查人员的活动，特别是：“识别过程并量化控制关键的痕量元素和海洋分布的分布的通量，并确定这些分布以使环境改变环境的敏感性。”铁，钴和锌等痕量元素以超低浓度出现在海洋中。 他们的低丰度被认为会影响海洋生态系统的健康和生育能力。 因此，获得对调节这些元素在海洋中分布的过程的准确了解，这是对海洋资源可持续管理的关键贡献。为了实现地理位置的任务，并从中实现了福利，地理领域正在使观察结果跨越全球海洋部分与数值建模密切相关，并得到了持续的分析方法和程序范围数据管理系统持续互动的坚实基础。美国地理领域项目办公室领导着确保成功完成美国地理特征的贡献，以支持任务并领导国际地理位置数据管理和综合计划。该奖项支持项目办公室人员，为地理位置综合做出贡献的工作组，促进更广泛社区使用地理位置产品的事件，以及用于探险计划和数据分析的研讨会。USGeotraces处于十年中的计划中，以完成优先的海洋部分的优先级别。合成活动将解释沿这些部分测量的TEI的分布，以确定海洋中TEI的主要来源，并在许多情况下量化调节TEI供应和去除的过程速率。此外，合成活性评估了TEI在碳和主要养分的生物地球化学周期中的作用，包括微量营养素的生物利用度以及整个水柱的生物学摄取和再生。这些活动的产物将融入海洋生物地球化学周期的建模，以评估TEI分布对不断变化的环境条件的敏感性。在拟议的资金期间，建立和改进地理位置数据管理系统将是一个持续的过程。作为负责GeoTraces数据产品结构的常设委员会的联合主席，安德森将在整个过程中与数据管理委员会紧密合作。近期未来的主要目标是替换当前系统，该系统涉及在处理数据的三个委员会之间的手动转移和Google Docs的手动转移，GeoTraces数据组装中心以及组装数据产品的个人以及所有涉及的自动化系统，这些系统都由所有涉及的自动化系统消除了各个数据集的手动传输。预计开发新的数据系统将需要两年时间，因此该过程将在2018年春季开始，以确保该系统可以及时准备准备下一个中间数据产品，该产品计划于2021年发布。这一奖项反映了NSF的法定任务，并认为通过基金会的知识分子优点和广泛的影响来评估NSF的法定任务。