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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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AMT | Articles | Volume 12, issue 5
Atmos. Meas. Tech., 12, 2665-2677, 2019
https://doi.org/10.5194/amt-12-2665-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: The 10th International Carbon Dioxide Conference (ICDC10)...

Atmos. Meas. Tech., 12, 2665-2677, 2019
https://doi.org/10.5194/amt-12-2665-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 09 May 2019

Research article | 09 May 2019

Characterization of a commercial lower-cost medium-precision non-dispersive infrared sensor for atmospheric CO2 monitoring in urban areas

Emmanuel Arzoumanian et al.
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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Felix Vogel on behalf of the Authors (11 Mar 2019)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (26 Mar 2019) by Martin Steinbacher
AR by Felix Vogel on behalf of the Authors (31 Mar 2019)  Author's response    Manuscript
ED: Publish as is (01 Apr 2019) by Martin Steinbacher
Publications Copernicus
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Short summary
We tested commercial lower-cost CO2 sensors in laboratory and field studies to see if they can measure atmospheric CO2 mole fractions with less than 1 ppm bias (with monthly calibration), to allow continuous urban CO2 monitoring. We find that the sensors' CO2 readings are influenced by temperature, atmospheric pressure and water vapour content, but this can be corrected for by adding sensors (T, p, RH) and carefully calibrating each sensor against a high-precision instrument.
We tested commercial lower-cost CO2 sensors in laboratory and field studies to see if they can...
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