RAPID: US Geotraces N. Atlantic: Measuring the 13C-DIC distribution and quantifying the impact of organic matter export on 13C, nutrients and biologically active trace metals

RAPID：美国 Geotraces N. Atlantic：测量 13C-DIC 分布并量化有机物输出对 13C、营养物和生物活性微量金属的影响

• 批准号: 1137455
• 负责人: Paul Quay
• 金额: $ 2.83万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1137455&HistoricalAwards=false
• 关键词: RAPID; US; Geotraces; N.; Atlantic

With funding through a Grant for Rapid Response Research (RAPID), a research team at the University of Washington will participate in an originally unplanned oceanographic cruise in autumn 2011, as part of the U.S. GEOTRACES North Atlantic campaign to study carbon and oxygen isotopic signatures in the oceanic water column. The original, incomplete cruise (in autumn 2010) was terminated prematurely because of failure of the ship's propulsion system. The forthcoming follow-up cruise in 2011 will follow a track between Woods Hole, MA and Cape Verde Islands. These RAPID funds are being will cover only the costs of preparing for sample collection during the future cruise and not for laboratory analysis of the seawater samples or synthesis of the data. This team, originally supported through an ARRA award, will measure the same seawater characteristics on the future cruise as was proposed for the original cruise -- that is, the 13C/12C of dissolved inorganic carbon and the concentration of dissolved O2 and Ar gases. The scientific objectives have not changed; namely, they will quantify the rate of organic matter (OM) export using two separate methods that rely on the measured air-sea disequilibrium for del-13C and for dissolved O2 gas. The team will also determine the impact that OM export and its subsequent remineralization on the relationship between bioactive trace elements (BTE), del-13C-DIC and nutrient relationships in surface waters and at depth.Broader Impacts: Because these ocean carbon system data will become part of a multi-investigator international study, they will be made available to a worldwide community involved in the study of ocean chemistry and its relationship to global climatic change. Project results will also be incorporated into the principal investigator's teaching curricula, and the project itself will make provision for the participation of idergraduate students in the laboratory analytical work.

借助通过快速响应研究的赠款（Rapid）的资助，华盛顿大学的一个研究团队将于2011年秋天参加最初计划外的海洋学巡游，这是美国北大西洋北大西洋北大西洋运动的一部分，以研究海洋水柱中的碳和氧同位素签名。 原始的，不完整的巡航（2010年秋）由于船舶推进系统的失败而过早终止。 即将在2011年即将到来的后续巡游将沿着伍兹·霍尔（Woods Hole），马萨诸塞州和佛得角群岛之间的轨道。 这些快速的资金仅涵盖未来巡航期间准备样品收集的成本，而不是用于对海水样品的实验室分析或数据合成。该团队最初是通过ARRA奖支持的，它将与原始巡航（即溶解的无机碳的13C/12C）相同的未来巡航仪的海水特征，以及溶解的O2和AR气体的浓度。 科学目标没有改变。也就是说，他们将使用两种独立的方法来量化有机物的速率（OM）导出率，这些方法依赖于DEL-13C和溶解的O2气体的测得的空气不平衡。 该团队还将确定OM出口及其随后的再矿化对生物活性痕量要素（BTE），DEL-13C-DIC和营养关系之间在地表水和深度的影响之间的影响。BROADER的影响：因为这些海洋碳系统数据将成为一项多企业国际研究的一部分，因此，它们将成为全球范围内的多项式研究，因此将其涉及一项研究和研究。 项目结果还将纳入首席研究人员的教学课程中，该项目本身将为IDERGRADSUSE参与实验室分析工作提供准备。