Atmospheric Carbon Dioxide Mixing Ratios from the NOAA CMDL Carbon Cycle Cooperative Global Air Sampling Network (2009)
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The National Oceanic and Atmospheric Administration's Climate Monitoring and Diagnostics Laboratory (NOAA/CMDL) has measured CO2 in air samples collected weekly at a global network of sites since the late 1960s. Atmospheric CO2 mixing ratios reported in these files were measured by a nondispersive infrared absorption technique in air samples collected in glass flasks. All CMDL flask samples are measured relative to standards traceable to the World Meteorological Organization (WMO) CO2 mole fraction scale. These measurements constitute the most geographically extensive, carefully calibrated, internally consistent atmospheric CO2 data set available and are essential for studies aimed at better understanding the global carbon cycle budget.
美国国家海洋和大气管理局(National Oceanic and Atmospheric Administration,NOAA)下属的气候监测与诊断实验室(Climate Monitoring and Diagnostics Laboratory,CMDL,即NOAA/CMDL)自20世纪60年代末以来,依托全球站点网络每周采集空气样本,并对其中的二氧化碳(CO₂)开展测量。本数据集文件中报告的大气CO₂混合比,是通过非分散红外吸收技术对玻璃烧瓶采集的空气样本测定得到的。所有CMDL的烧瓶样本均以可追溯至世界气象组织(World Meteorological Organization,WMO)CO₂摩尔分数标尺的标准物质作为校准参照。这些测量数据构成了目前公开可得的、地理覆盖范围最广、校准最为精细且内部一致性最强的大气CO₂数据集,对于旨在更深入理解全球碳循环收支的研究而言至关重要。



