Collaborative Research: Measuring Carbon and Climate Tracers on the Atom Airborne Campaigns

合作研究：测量原子机载运动中的碳和气候示踪剂

• 批准号: 1623748
• 负责人: Ralph Keeling
• 金额: $ 45.06万
• 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: 2016
• 资助国家: 美国
• 起止时间: 2016-08-01 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1623748&HistoricalAwards=false
• 关键词: Collaborative; Research; Measuring; Carbon; Climate

This project is a collaborative effort that supports the deployment of two instrument packages as part of the ATom campaign. The objective of ATom is to make "tomographic" type maps of the global distribution of aerosols, reactive gases, and short-lived climate forcing agents using aircraft measurements. The NSF-supported HIPPO campaign previously demonstrated the feasibility and advantages of the tomographic sampling used in the design of the ATom mission. In addition to the study of short-lived climate forcing agents, this project includes global-scale measurements that can advance other fundamental aspects of carbon and climate science, such as understanding the distribution of carbon sinks and the links between ocean biochemistry, carbon cycling, and climate change. The NASA-supported ATom project consists of four deployments in order to map distributions in all seasons. The instrument packages to be deployed include the Airborne Oxygen Instrument (AO2), which provides rapid in situ measurements of atmospheric O2 and CO2 concentrations, and a flask sampler that collects samples for analysis of O2/N2, CO2 concentration, CO2 isotopes and Ar/N2. 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. Atmospheric O2 measurements can reveal the vertical and latitudinal extent of hemispheric seasonal ocean O2 outgassing and in-gassing signals and define spatial gradients at enough times in the seasonal cycle to derive climatological annual-mean distributions.

该项目是一项协作努力，支持在Atom活动的一部分中部署两个仪器包。原子的目的是使用飞机测量值制作气溶胶，反应性气体和短暂气候强迫剂的全球分布的“层析成像”图。 NSF支持的河马运动以前证明了Atom任务设计中使用的层析成像采样的可行性和优势。 除了研究短寿命的气候强迫剂外，该项目还包括全球规模的测量，可以推进碳和气候科学的其他基本方面，例如了解碳汇的分布以及海洋生物化学，碳循环之间的联系和气候变化。 NASA支持的原子项目由四个部署组成，以便在所有季节中绘制分布。要部署的仪器包包括机载氧仪器（AO2），该仪器可快速地测量大气O2和CO2浓度，以及收集样品以分析O2/N2，CO2浓度，CO2，CO2，AR/AR/AR///AR//AR//AR/AR/AR/AR/AR/AR/AR/AR/AR/AR的烧瓶采样器N2。 通过将这些测量结果与大型大气传输模型相结合，可以获得对相应的热，O2和CO2的空气通量的直接约束。 大气中的O2测量值可以揭示半球季节性海洋O2的垂直和纬度范围，超过和气体信号，并在季节性周期中足够的时间定义空间梯度，以得出气候年度均值分布。