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到来的NASA资助的ATOM(大气层析成像任务)项目。原子的目标是绘制与了解气候有关的颗粒、活性气体和短暂物种的全球大气分布图。美国宇航局DC-8飞机计划于2016年6月至8月进行四次部署，其中第一次将增加两个仪表包。这些仪器将提供对推进碳和气候科学的基本方面至关重要的数据。将部署的两个成套仪器是NCAR气载氧气仪器(AO2)和NCAR/Scripps Medusa烧瓶采样器，前者提供对大气O2和CO2浓度的快速现场测量，后者收集样品用于分析O2/N2、CO2浓度、CO2同位素和Ar/N2。这两种工具都是成熟的，并已被广泛使用，包括在2009-2011年由NSF支持的5个河马活动中。通过将这些测量与大尺度大气传输模式相结合，获得了对相应的海-气热量、O2和CO2通量的直接约束。这项研究将推进与碳循环和气候有关的更广泛的问题，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。