Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 442052
Title Atmospheric CO2, d(O2/N2) and d13CO2 measurements at Jungfraujoch, Switzerland: results from a flask sampling intercomparison program
Author(s) Laan-Luijkx, I.T. van der; Laan, S. van der; Uglietti, C.; Schibig, M.F.; Neubert, R.E.M.; Meijer, H.A.J.; Brand, W.A.; Jordan, A.; Richter, J.M.; Rothe, M.; Leuenberger, M.C.
Source Atmospheric Measurement Techniques 6 (2013). - ISSN 1867-1381 - p. 1805 - 1815.
DOI https://doi.org/10.5194/amt-6-1805-2013
Department(s) Meteorology and Air Quality
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) isotope-ratio - mass-spectrometry - greenhouse gases - carbon sinks - air samples - tall tower - oxygen - network - o-2 - delta-c-13
Abstract We present results from an intercomparison program of CO2, d(O2/N2) and d13CO2 measurements from atmospheric flask samples. Flask samples are collected on a bi-weekly basis at the High Altitude Research Station Jungfraujoch in Switzerland for three European laboratories: the University of Bern, Switzerland, the University of Groningen, the Netherlands and the Max Planck Institute for Biogeochemistry in Jena, Germany. Almost 4 years of measurements of CO2, d(O2/N2) and d13CO2 are compared in this paper to assess the measurement compatibility of the three laboratories. While the average difference for the CO2 measurements between the laboratories in Bern and Jena meets the required compatibility goal as defined by the World Meteorological Organization, the standard deviation of the average differences between all laboratories is not within the required goal. However, the obtained annual trend and seasonalities are the same within their estimated uncertainties. For d(O2/N2) significant differences are observed between the three laboratories. The comparison for d13CO2 yields the least compatible results and the required goals are not met between the three laboratories. Our study shows the importance of regular intercomparison exercises to identify potential biases between laboratories and the need to improve the quality of atmospheric measurements
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