Preparation and Distribution of DOC Consensus Reference Materials

海洋中的溶解有机碳（DOC）是全球碳循环的一部分。 DOC 通过与大气中二氧化碳的联系与地球气候系统相互作用。跟踪 DOC 需要全球许多海洋实验室的合作。为了确保所有这些实验室都能进行准确的 DOC 测量，每个实验室都可以获得标准化的海水样本，其中 DOC 浓度由国际协议确定。该奖项资助迈阿密大学继续实施共识参考材料 (CRM) 计划，该计划于 1998 年首次开发，旨在支持国际海洋化学界对溶解有机碳进行一致、高质量的测量。随着这项工作的继续进行，美国和国际社会可以对主要海洋碳库进行一致的测量，并提高社会评估海洋碳循环变化和海洋在气候变化中的作用的能力。随着国际社会继续大力调查海洋碳循环，现有的CRM计划为全球可比较的海洋DOC测量提供了必要的基准。来自佛罗里达海峡深处的水（约 42 umol/kg DOC）将被收集，放入安瓿中，并分发给美国和国际社会。在该计划期间，大约 228,000 瓶参考水已分发到 43 个国家的大约 240 个美国和国际实验室，目前的分发速度约为每年 23,000 瓶。 随着第七个三年支持期的参考材料计划的继续，含有生物难熔溶解有机碳的深海水和低碳参考水的分布将继续帮助研究海洋中溶解有机物的社区的分析工作。我们维护一个网站，为从全球海洋收集的越来越多的 DOC 数据提供直接、便捷的链接。该奖项反映了 NSF 的法定使命，并通过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，被认为值得支持。

Dissolved organic carbon (DOC) in the ocean is part of the global carbon cycle. DOC interacts with the Earth's climate system through its connection to carbon dioxide in the atmosphere. Keeping track of DOC requires the cooperation of many marine laboratories worldwide. Making sure that all of these laboratories are making accurate DOC measurements requires that each can access a standardized sample of seawater for which the DOC concentration is set by international agreement. This award funds the University of Miami to continue a consensus reference material (CRM) program that was first developed in 1998 in support of consistent, high quality measurements of dissolved organic carbon by the international ocean chemistry community. With continuation of this work, the US and international communities can make consistent measurements of a major marine carbon reservoir and advance society's ability to assess changes in the marine carbon cycle and the role of the ocean in climate change.With continued strong international efforts to investigate the marine carbon cycle, the existing CRM program provides the necessary benchmark for globally comparable marine DOC measurements. Water from the deep Florida Strait (approximately 42 umol/kg DOC) will be collected, placed in ampoules, and distributed to the US and international community. Over the time period of this program, approximately 228,000 vials of reference waters have been distributed to approximately 240 US and international laboratories in 43 nations, currently at a rate of about 23,000 vials/year. With continuation of the reference material program for a seventh 3-year period of support, distribution of deep ocean water containing biologically refractory dissolved organic carbon and low carbon reference water will continue to aid the analytical work of the community studying dissolved organic matter in the ocean. A website is maintained that provides direct and convenient links to a growing number of DOC data collected from the global ocean.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.