CO2, delta O-2/N-2 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. and Meijer, H. A. J. (2010) CO2, delta O-2/N-2 and APO: observations from the Lutjewad, Mace Head and F3 platform flask sampling network. Atmospheric Chemistry and Physics, 10 (21). pp. 10691-10704. ISSN 1680-7324

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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.

Item Type:	Article
Uncontrolled Keywords:	atmospheric oxygen measurements,global carbon-cycle,gas-chromatograph,n-2 ratio,o-2,air,variability,dioxide,sinks,emissions
Faculty \ School:	Faculty of Science > School of Environmental Sciences
Depositing User:	Pure Connector
Date Deposited:	19 Dec 2015 07:19
Last Modified:	14 Sep 2023 13:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/55803
DOI:	10.5194/acp-10-10691-2010

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