Two decades of flask observations of atmospheric δO2/N2, CO2, and APO at stat...

This is the data supplement presented in Nguyen et al. 2021 (https://doi.org/10.5194/essd-2021-213) in which we present 20-year flask sample records of atmospheric CO2, δO2/N2...本数据集为Nguyen等（2021）发表的研究（https://doi.org/10.5194/essd-2021-213）的配套补充数据，其中收录了20年的大气CO₂、δO₂/N₂等组分的瓶式采样（flask sample）记录。