CO2, δO2/N2 and APO: observations from the Lutjewad, Mace Head and F3 platform 
flask sampling network

Van Der Laan-Luijkx, I. T.; Karstens, U.; Steinbach, J.; Gerbig, C.; Sirignano, C.; Neubert, R. E. M.; Van Der Laan, S.; Meijer, H. A. J.

doi:10.5194/acp-10-10691-2010

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CO₂, δO₂/N₂ and APO: observations from the Lutjewad, Mace Head and F3 platform flask sampling network

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Karstens, U.
Regional Scale Modelling of Atmospheric Trace Gases, Dr. U. Karstens, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society;

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Steinbach, J.
Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society;

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Gerbig, C.
Airborne Trace Gas Measurements and Mesoscale Modelling, Dr. habil. C. Gerbig, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society;

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Citation

Van Der Laan-Luijkx, I. T., Karstens, U., Steinbach, J., Gerbig, C., Sirignano, C., Neubert, R. E. M., et al. (2010). CO₂, δO₂/N₂ and APO: observations from the Lutjewad, Mace Head and F3 platform flask sampling network. Atmospheric Chemistry and Physics, 10(21), 10691-10704. doi:10.5194/acp-10-10691-2010.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000E-DB1B-C

Abstract

We report results from our atmospheric flask sampling network for three European sites: Lutjewad in the Netherlands, Mace Head in Ireland and the North Sea F3 platform. The air samples from these stations are analyzed for their CO₂ and O-2 concentrations. In this paper we present the CO₂ and O₂ data series from these sites between 1998 and 2009, as well as the atmospheric potential oxygen (APO). The seasonal pattern and long term trends agree to a large extent between our three measurement locations. We however find a changing gradient between Mace Head and Lutjewad, both for CO₂ and O-2. To explain the potential contribution of fossil fuel emissions to this changing gradient we use an atmospheric transport model in combination with CO₂ emission data and information on the fossil fuel mix per region. Using the APO trend from Mace Head we obtain an estimate for the global oceanic CO₂ uptake of 1.8+/-0.8 PgC/year.