Collaborative Research: Management and Logistics Operations for the U.S. GEOTRACES Zonal North Atlantic Survey Section

合作研究：美国 GEOTRACES 北大西洋区域调查组的管理和物流运作

• 批准号: 0926092
• 负责人: Gregory Cutter
• 金额: $ 31.73万
• 依托单位: Old Dominion University Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0926092&HistoricalAwards=false
• 关键词: Collaborative; Research; Management; Logistics; Operations

Trace elements are known to play important roles as nutrients in biological cycling, particularly in regard to enzymatic and catalytic processes in the open ocean. Isotopes are valuable tracers of these and related processes, and of the ocean's interaction with the atmosphere and the solid earth, which in turn play a role in shaping many trace element distributions within the ocean. Nevertheless, significant gaps exist in both our knowledge of the larger scale distributions of these TEIs (trace elements and isotopes) in the ocean and in our understanding of the processes responsible for those distributions. This shortfall has implications for numerous scientific endeavors that are relevant to a broad range of intellectual and societal issues, including the carbon cycle and climate change, as well as the marine food web and direct anthropogenic impacts on the oceans. Recent advances in sampling and analytical techniques coupled with a better understanding of the roles of TEIs in ocean biogeochemical cycles present us with an opportunity to rectify this problem. Moreover, we are motivated by the prospect of ongoing global change and the need to understand the present and future workings of the ocean's biogeochemical cycles. In this project, researchers at the Woods Hole Oceanographic Institution, Massachusetts Institute of Technology, and Old Dominion University will be funded to handle the management and logistics associated with the first US GEOTRACES zonal section in the North Atlantic as part of a global survey. With this support they will: 1) organize and mount a 52 day research cruise; 2) manage on-board water sampling, including GO-Flo and Niskin bottle operational QA/QC (quality assessment and control); 3) 0btain, store, and ship back to the U.S. trace-metal clean water samples; 4) monitor trace-metal clean sampling using on-board Zn measurements; 5) acquire, quality control and manage hydrographic data (including CTD, transmissometer, fluorometer, oxygen electrode data, discrete sample salinity and dissolved oxygen measurements, and micromolar and nanomolar inorganic nutrients); 6) QA/QC shipboard measurements and submit data to the GEOTRACES data repository; 7) prepare a framework hydrographic report/synthesis for cruise participants and publication; and 8) coordinate pre- and post-cruise meetings The cruise track and station locations were designed to highlight key processes and identify the major features of key TEIs distributions. Broader Impacts: It is widely agreed that the ocean biogeochemical research community needs a global picture of the key and ancillary GEOTRACES properties; the major impact of this project will be in its service to that community. This service will enable the development of better ocean biogeochemical models so that we can assess the likely impact of future climate change and anthropogenic pollution, and provide a basis for understanding changes observed in past oceans. The development of a reliable platform and procedures for sampling trace metals and isotopes will provide the community with a platform for future oceanographic fieldwork. The development of teams that understand the proper sampling and measurement techniques, many of whom will be graduate students and postdocs, will supply the community with a pool of skills necessary to achieve the goals of the next generation of ocean research programs.

众所周知，痕量元素在生物循环中起着重要的作用，尤其是在开阔的酶促过程和催化过程方面。同位素是这些和相关过程的宝贵示踪剂，以及海洋与大气和固体地球的相互作用，这反过来又在塑造海洋内许多痕量元素分布中发挥了作用。然而，我们对海洋中这些TEI（痕量要素和同位素）的较大规模分布的了解以及我们对负责这些分布的过程的理解。这一缺口对许多与广泛的智力和社会问题相关的科学努力具有影响，包括碳循环和气候变化，以及海洋食品网以及直接对海洋的人为影响。采样和分析技术的最新进展以及对TEI在海洋生物地球化学周期中的作用的更好理解使我们有机会纠正这个问题。此外，我们的动机是全球变化的前景以及了解海洋生物地球化学周期的当前和未来工作的必要性。在这个项目中，伍兹霍尔海洋学机构，马萨诸塞州理工学院和旧自治领大学的研究人员将获得资金，以处理与全球调查的北大西洋上第一个地理位置区域区域相关的管理和物流。 在此支持的情况下，他们将：1）组织和安装52天的研究巡游； 2）管理机上水采样，包括Go-flo和Niskin瓶操作QA/QC（质量评估和控制）； 3）0btain，存储和运送回美国微量 - 金属清洁水样品； 4）使用车载Zn测量值监视痕量金属清洁采样； 5）获取，质量控制和管理水文数据（包括CTD，透射仪，荧光计，氧电极数据，离散样品盐度和溶解的氧测量结果，以及微摩尔和纳摩尔无机养分）； 6）QA/QC船舶测量结果并将数据提交到GeoTraces数据存储库中； 7）为巡航参与者和出版物准备框架水文报告/合成； 8）协调巡航前后的会议巡航轨道和车站位置旨在突出关键过程并确定关键TEIS分布的主要特征。更广泛的影响：普遍认为，海洋生物地球化学研究界需要全球构图对关键和辅助地理属性的图景；该项目的主要影响将是为该社区服务。这项服务将使更好的海洋生物地球化学模型的发展，以便我们可以评估未来气候变化和人为污染的可能影响，并为理解过去海洋中观察到的变化提供了基础。开发可靠的平台和采样痕量金属和同位素的程序将为社区提供一个未来海洋现场工作的平台。了解适当的采样和测量技术的团队的发展，其中许多人将是研究生和博士后，将为社区提供实现下一代海洋研究计划目标所需的技能。