RAPID: Collaborative Research: Flask and in Situ Measurements of Carbon and Climate Tracers on ATom-1

RAPID：合作研究：ATom-1 上碳和气候示踪剂的烧瓶和原位测量

• 批准号: 1547797
• 负责人: Ralph Keeling
• 金额: $ 5.93万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-10-01 至 2016-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1547797&HistoricalAwards=false
• 关键词: RAPID; Collaborative; Research; Flask; Situ

This project will support NSF-funded investigators to participate in the upcoming NASA-funded ATom (Atmospheric Tomography Mission) project. The objective of ATom is to map the global atmospheric distribution of particles, reactive gases, and short-lived species relevant for understanding climate. Two instrument packages will be added to the first of four deployments of the NASA DC-8 aircraft scheduled for June-August 2016. These instruments will provide data critical for advancing fundamental aspects of carbon and climate science.The two instrument packages to be deployed are the NCAR Airborne Oxygen Instrument (AO2), which provides rapid in situ measurements of atmospheric O2 and CO2 concentrations, and the NCAR/Scripps Medusa flask sampler, which collects samples for analysis of O2/N2, CO2 concentration, CO2 isotopes and Ar/N2. Both of these instruments are mature and have been used extensively, including on the 5 NSF-supported HIPPO campaigns from 2009-2011. By combining these measurements with large-scale atmospheric transport models, direct constraints on the corresponding air-sea fluxes of heat, O2, and CO2 are obtained. This research will advance a broader range of issues related to the carbon cycle and climate, such as the distribution of carbon sinks and the links between ocean biochemistry, carbon cycling, and climate change.

该项目将支持 NSF 资助的研究人员参与即将推出的 NASA 资助的 ATom（大气层析成像任务）项目。 ATom 的目标是绘制与了解气候相关的颗粒、活性气体和短寿命物种的全球大气分布图。 计划于 2016 年 6 月至 8 月部署的 NASA DC-8 飞机四次部署中的第一次部署将添加两个仪器包。这些仪器将为推进碳和气候科学的基本方面提供至关重要的数据。要部署的两个仪器包是NCAR 机载氧气仪器 (AO2) 可快速原位测量大气中的 O2 和 CO2 浓度，NCAR/Scripps Medusa 烧瓶采样器可收集样品进行 O2/N2 分析， CO2 浓度、CO2 同位素和 Ar/N2。 这两种工具都很成熟并且已被广泛使用，包括 2009-2011 年 NSF 支持的 5 次 HIPPO 活动。 通过将这些测量结果与大规模大气传输模型相结合，可以获得对相应的海气通量、热量、氧气和二氧化碳的直接约束。 这项研究将推进与碳循环和气候相关的更广泛的问题，例如碳汇的分布以及海洋生物化学、碳循环和气候变化之间的联系。