Atmospheric Constraints on Carbon Exchanges and Related Processes Based on Measurements of Atmospheric O2/N2 and Ar/N2 Ratios and CO2 Concentrations

基于大气 O2/N2 和 Ar/N2 比率以及 CO2 浓度测量的大气对碳交换和相关过程的约束

• 批准号: 0651834
• 负责人: Ralph Keeling
• 金额: $ 81.45万
• 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: 2007
• 资助国家: 美国
• 起止时间: 2007-07-15 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0651834&HistoricalAwards=false
• 关键词: Atmospheric; Constraints; Carbon; Exchanges; Related

Atmospheric O2:N2 ratios measured over time, together with the mixing ratio of atmospheric carbon dioxide, are the most direct means available for scientifically documenting the global sources and sinks of CO2, the dominant anthropogenic greenhouse gas. This then is primary data informing the assessment reports issued by the Intergovernmental Panel on Climate Change (IPCC) on behalf of the climate community and which serve to advise WMO (World Meteorological Organization) and UNEP (United Nations Environmental Programme). These reports in turn are the basis for many national and international responses to climate change science, mitigation and adaptation strategies. Since 1989, Scripps investigators, in conjunction with the CO2 global sampling network (initiated by CD Keeling), have sustained a regular (semi-weekly) sampling and measurement program over ~ 9 global stations to document changes in the global atmospheric O2/N2 ratio. Additional evaluation of another atmospheric mixing ratio (Ar/N2) will be sought to provide insight into the global ocean-atmosphere heat exchange.

随着时间的推移测量的大气O2：N2比率，以及大气二氧化碳的混合比率，是科学记录主要人为温室气体CO2的全球源和汇的最直接手段。这是为政府间气候变化专门委员会（IPCC）代表气候界发布的评估报告提供信息的主要数据，并为WMO（世界气象组织）和UNEP（联合国环境规划署）提供咨询意见。这些报告反过来又是许多国家和国际应对气候变化科学、减缓和适应战略的基础。 自1989年以来，Scripps研究人员与CO2全球采样网络（由CD Keeling发起）一起，在9个全球站点上进行了定期（半周）采样和测量计划，以记录全球大气O2/N2比率的变化。将寻求对另一种大气混合比（Ar/N2）的进一步评估，以深入了解全球海洋-大气热交换。