Old Dominion University/Synthetic Conducting Cable for Trace Metal-clean Sampling Winch SSSE

旧道明大学/用于微量金属清洁采样绞车 SSSE 的合成导电电缆

• 批准号: 2118915
• 负责人: Gregory Cutter
• 金额: $ 18.03万
• 依托单位: Old Dominion University Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-04-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2118915&HistoricalAwards=false
• 关键词: Old; Dominion; University; Synthetic; Conducting

A request is made for the acquisition of an 8000 m long, 14 mm diameter synthetic (Vectran) conducting cable that is part of a trace metal-clean oceanographic sampling system. It would be replacing an existing 12-year-old cable that has been damaged during water sampling in the Arctic, Atlantic, and Pacific Oceans. Trace elements are crucial to biological and chemical processes in the world’s oceans due to their roles as essential micro-nutrients or toxicants. However, conventional oceanographic sampling methods contaminate water samples for these constituents. Unfortunately, rigorous trace metal-clean procedures are labor-intensive, require specialized equipment, and are very slow, limiting our ability to study trace elements on ocean basin scales. As a part of the international GEOTRACES program a rosette/CTD sampling system that allows rapid, high resolution trace element sampling was developed using NSF funding. Since the cable is the only thing above the sample bottles, it has to be non-metallic wire to assure quality samples while still being as fast as that of conventional CTD/rosettes. The existing cable has been damaged after 10 years of use and must be replaced to continue high resolution trace element sampling in the world's oceans. There are two NSF-funded cruises in the next three years that require this cable. The request to the SSSE Program is:1) Synthetic conducting CTD cable, 8000 m x 14 mm $180,340 Broader ImpactsThe principal impact of the present proposal is under Merit Review Criterion 2 of the Proposal Guidelines (NSF 19-602). It provides infrastructure support for scientists to use the vessel and its shared-use instrumentation in support of their NSF-funded oceanographic research projects (which individually undergo separate review by the relevant research program of NSF). The acquisition, maintenance and operation of shared-use instrumentation allows NSF-funded researchers from any US university or lab access to working, calibrated instruments for their research, reducing the cost of that research, and expanding the base of potential researchers.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.

请求购置一条8 000米长、直径14毫米的合成（Vectran）导电电缆，这是痕量金属清洁海洋取样系统的一部分。它将取代现有的已有12年历史的电缆，该电缆在北极、大西洋和太平洋的水采样过程中损坏。微量元素对世界海洋中的生物和化学过程至关重要，因为它们是必不可少的微量营养素或毒物。然而，传统的海洋学取样方法会污染水样中的这些成分。不幸的是，严格的痕量金属清洁程序是劳动密集型的，需要专门的设备，并且非常缓慢，限制了我们在海洋盆地尺度上研究痕量元素的能力。作为国际GEOTRACES计划的一部分，利用NSF的资金开发了一种玫瑰花形/CTD采样系统，可以进行快速、高分辨率的微量元素采样。由于电缆是样品瓶上方唯一的东西，因此它必须是非金属线，以确保样品的质量，同时仍然与传统的CTD/ROTRONIC一样快。现有的电缆在使用10年后已损坏，必须更换，以便继续在世界海洋中进行高分辨率微量元素采样。在未来三年内，有两个NSF资助的游轮需要这种电缆。对SSSE计划的要求是：1）合成导电CTD电缆，8000 m x 14 mm 180，340美元更广泛的影响本提案的主要影响是根据提案指南（NSF 19-602）的优点审查标准2。它为科学家提供基础设施支持，以使用该船及其共享使用的仪器来支持他们的NSF资助的海洋学研究项目（这些项目单独接受NSF相关研究计划的单独审查）。 共享使用仪器的获取、维护和操作允许来自美国任何大学或实验室的NSF资助的研究人员使用工作、校准的仪器进行研究，降低研究成本，并扩大潜在研究人员的基础。该奖项反映了NSF的法定使命，并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。