Air Sampling for Atmospheric O2 Measurements at the South Pole

用于南极大气 O2 测量的空气采样

• 批准号: 9218527
• 负责人: Ralph Keeling
• 金额: --
• 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: 1993
• 资助国家: 美国
• 起止时间: 1993-06-01 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9218527&HistoricalAwards=false
• 关键词: Air; Sampling; Atmospheric; O2; Measurements

This four-year atmospheric chemistry project will extend a global air sampling program to include a sampling site at South Pole Station. Samples will be analyzed for the oxygen/nitrogen ratio and for carbon dioxide content. The work will be done cooperatively by the climatic baseline station operated by NOAA in conjunction with the National Science Foundation. Recent advances in instrumentation have made it possible to detect variations in atmospheric oxygen content at the parts-per-million level. Such high precision atmospheric oxygen measurements are important in the context of climate and global change since they are not only important in their own right, but are basic to such issues of global warming as the carbon dioxide budget, ozone, and marine productivity. Data from South Pole Station are necessary to constrain the estimates of carbon dioxide fluxes due to marine productivity in the southern hemisphere, and to confirm indications that the oxygen concentration in the southern hemisphere is generally higher than that in the northern hemisphere.

这个为期四年的大气化学项目将扩大全球范围， 空气采样计划，包括南极采样点 站 将分析样品的氧/氮比 以及二氧化碳含量。 工作会完成的 由NOAA运营的气候基线站合作， 与国家科学基金会合作。 仪器的最新进展使得检测 大气氧含量在百万分之几时的变化 水平 这种高精度的大气氧测量是 在气候和全球变化的背景下， 它们不仅本身很重要，而且是这样做的基础。 全球变暖的问题，如二氧化碳预算，臭氧， 海洋生产力。 来自南极站的数据对于约束 海洋生产力引起的二氧化碳通量估计数 南半球，并确认迹象表明，氧气 南半球的浓度一般高于 在北方半球。