Isotopic Composition of Nitrous Oxide and Carbon Dioxide

一氧化二氮和二氧化碳的同位素组成

• 批准号: 0225829
• 负责人: Yuk Yung
• 金额: $ 49.36万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2006-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0225829&HistoricalAwards=false
• 关键词: Isotopic; Composition; Nitrous; Oxide; Carbon

The project is extending work on isotopic fractionation of nitrous oxide and carbon dioxide in the atmosphere for the purpose of elucidating the budgets and the processes that contribute to the sources and sinks of these greenhouse gases. A combination of two- and three-dimensional models are being applied to relate the observed atmospheric isotopic fractionations to various biospheric processes that will help constrain the values of their sources and sinks. This work is contributing to the understanding of two atmospheric trace gases that are likely to play a major role in future climate change.

该项目正在扩大关于大气中一氧化二氮和二氧化碳同位素分馏的工作，以阐明促成这些温室气体的来源和吸收汇的预算和过程。 目前正在采用二维和三维模型相结合的方法，将观测到的大气同位素分馏与各种生物圈过程联系起来，这将有助于限制其源和汇的值。 这项工作有助于了解两种可能在未来气候变化中发挥重要作用的大气痕量气体。