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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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AMT | Articles | Volume 11, issue 10
Atmos. Meas. Tech., 11, 5565–5586, 2018
https://doi.org/10.5194/amt-11-5565-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Meas. Tech., 11, 5565–5586, 2018
https://doi.org/10.5194/amt-11-5565-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 12 Oct 2018

Research article | 12 Oct 2018

Experiments with CO2-in-air reference gases in high-pressure aluminum cylinders

Michael F. Schibig et al.
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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR by M.F. Schibig on behalf of the Authors (03 Aug 2018)  Author's response    Manuscript
ED: Publish as is (24 Aug 2018) by Brigitte Buchmann
Publications Copernicus
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Short summary
For long-term monitoring of CO2 in the atmosphere it is crucial that standard reference gas mixtures stored in high-pressure aluminum cylinders, used to calibrate global measurements, remain stable over their whole time of use. This study finds a reproducible small enrichment as a cylinder is emptied at a low-flow rate, as well as somewhat larger and variable effects when a cylinder is emptied using a high-flow rate.
For long-term monitoring of CO2 in the atmosphere it is crucial that standard reference gas...
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