Measurements and Modeling of Isotopic Ratios of Atmospheric Methane and Carbon Monoxide from Pacific Ocean Shipboard Sampling

该项目涉及测量在洛杉矶和新西兰之间的太平洋上船上样带的甲烷和一氧化碳的同位素和混合比率。这些综合测量将在三年内每年进行四次旅行，将有助于回答与大气中甲烷增长速度有关的问题，并为甲烷和一氧化碳的全球总体预算提供限制。由此得出的甲烷数据将与其他研究人员的数据相结合，并用于三维模型，以评估大气甲烷浓度的变化以及这些变化如何影响大气的氧化能力。该项目包括与新西兰惠灵顿的一个研究小组合作，该小组正在进行类似的测量，并与奥斯陆大学合作，在奥斯陆大学进行建模和分析。这些合作极大地提高了这项工作产生具有更广泛社会意义的信息的能力，例如提高对全球甲烷预算的理解，这对理解人类对气候变化的影响具有重要意义。

This project involves the measurement of the isotopic and mixing ratios of methane and carbon monoxide from a shipboard transect in the Pacific Ocean between Los Angeles and New Zealand. These combined measurements, made through four trips per year for three years, will help answer questions related to the growth rate of methane in the atmosphere and provide constraints on the overall global budgets of methane and carbon monoxide. The resultant methane data will be combined with data from other researchers and used in a 3-D model to evaluate the changes concentrations of atmospheric methane and how these changes affect the oxidizing power of the atmosphere. This project involves collaboration with a research group in Wellington, New Zealand that is making similar measurements and collaboration with the University of Oslo where the modeling and analysis will take place. These collaborations greatly enhance the ability of this effort to produce information with broader societal relevance, such as developing an improved understanding of the global methane budget that has implications for understanding human impact on climate change.