Journal cover Journal topic
Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 3.400 IF 3.400
  • IF 5-year value: 3.841 IF 5-year
    3.841
  • CiteScore value: 3.71 CiteScore
    3.71
  • SNIP value: 1.472 SNIP 1.472
  • IPP value: 3.57 IPP 3.57
  • SJR value: 1.770 SJR 1.770
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 70 Scimago H
    index 70
  • h5-index value: 49 h5-index 49
Volume 6, issue 7 | Copyright

Special issue: Carbon dioxide, other greenhouse gases, and related measurement...

Atmos. Meas. Tech., 6, 1805-1815, 2013
https://doi.org/10.5194/amt-6-1805-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 30 Jul 2013

Research article | 30 Jul 2013

Atmospheric CO2, δ(O2/N2) and δ13CO2 measurements at Jungfraujoch, Switzerland: results from a flask sampling intercomparison program

I. T. van der Laan-Luijkx1,2,*, S. van der Laan1, C. Uglietti1,**, M. F. Schibig1, R. E. M. Neubert2,***, H. A. J. Meijer2, W. A. Brand3, A. Jordan3, J. M. Richter3, M. Rothe3, and M. C. Leuenberger1 I. T. van der Laan-Luijkx et al.
  • 1Climate and Environmental Physics, Physics Institute and Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
  • 2Centre for Isotope Research, University of Groningen, Groningen, the Netherlands
  • 3Max Planck Institute for Biogeochemistry, Jena, Germany
  • *now at: Meteorology and Air Quality, Wageningen University, Wageningen, the Netherlands
  • **now at: AirSea Laboratory, National University of Ireland, Galway, Ireland
  • ***now at: Innovation Centre for Advanced Sensors and Sensor Systems INCAS3, Assen, the Netherlands

Abstract. We present results from an intercomparison program of CO2, δ(O2/N2) and δ13CO2 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, δ(O2/N2) and δ13CO2 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 δ(O2/N2) significant differences are observed between the three laboratories. The comparison for δ13CO2 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.

Publications Copernicus
Special issue
Download
Citation
Share