Two decades of flask observations of atmospheric δO2/N2, CO2, and APO at stations Lutjewad (the Netherlands) and Mace Head (Ireland) plus 3 years from Halley station (Antarctica)

• Main Authors: Nguyen, Linh N. T., Meijer, Harro A. J., Leeuwen, Charlotte, Kers, Bert A. M., Scheeren, Bert A., Jones, Anna E., Brough, Neil, Barningham, Thomas, Pickers, Penelope A., Manning, Andrew C., Luijkx, Ingrid T.
• Format: Text
• Language: English
• Published: 2021
• Subjects: Halley Station; Mace; Scripps; Antarc*; Antarctica; North Atlantic
• Online Access: https://doi.org/10.5194/essd-2021-213; https://essd.copernicus.org/preprints/essd-2021-213/

We present 20-year flask sample records of atmospheric CO 2 , δO 2 /N 2 and APO from the stations Lutjewad (the Netherlands) and Mace Head (Ireland) and a 3-year record from Halley station (Antarctica), including details of the extensive calibration procedure and its stability over time. The results...