Articles | Volume 9, issue 9
Atmos. Meas. Tech., 9, 4737–4757, 2016
https://doi.org/10.5194/amt-9-4737-2016
Atmos. Meas. Tech., 9, 4737–4757, 2016
https://doi.org/10.5194/amt-9-4737-2016

Research article 26 Sep 2016

Research article | 26 Sep 2016

Assessment of recent advances in measurement techniques for atmospheric carbon dioxide and methane observations

Christoph Zellweger et al.

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Short summary
We compared instruments using more traditional techniques for measuring CO2 and CH4 at different stations of the Global Atmosphere Watch (GAW) programme with a travelling instrument using a spectroscopic technique. Our results show that the newer analytical techniques have clear advantages over the traditional methods which will lead to the improved accuracy of atmospheric CO2 and CH4 measurement. The work was carried out in the framework of the GAW quality assurance/quality control system.