Articles | Volume 12, issue 2
https://doi.org/10.5194/amt-12-1013-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-12-1013-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Feb 2019
Research article |
| 15 Feb 2019
| 15 Feb 2019
Correcting atmospheric CO2 and CH4 mole fractions obtained with Picarro analyzers for sensitivity of cavity pressure to water vapor
Max Planck Institute for Biogeochemistry, Jena, Germany
Christoph Gerbig
Max Planck Institute for Biogeochemistry, Jena, Germany
Jost V. Lavric
Max Planck Institute for Biogeochemistry, Jena, Germany
Chris W. Rella
Picarro Inc., Santa Clara, CA, USA
Mathias Göckede
Max Planck Institute for Biogeochemistry, Jena, Germany
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Cited
14 citations as recorded by crossref.
- Local emission and long-range transport impacts on the CO, CO2, and CH4 concentrations at a tropical rural site C. Jain et al. 10.1016/j.atmosenv.2021.118397
- UK greenhouse gas measurements at two new tall towers for aiding emissions verification A. Stavert et al. 10.5194/amt-12-4495-2019
- Detection of CO2 and CH4 Concentrations on a Beijing Urban Road Using Vehicle-Mounted Tunable Diode Laser Absorption Spectroscopy J. Chen et al. 10.3390/photonics10080938
- Marine emissions and trade winds control the atmospheric nitrous oxide in the Galapagos Islands T. Cinay et al. 10.5194/acp-25-4703-2025
- Tri-frequency cavity ring-down spectroscopy for fast ppb-level CO2 measurement H. Wang et al. 10.1016/j.snb.2025.137477
- Atmospheric CO2, CH4, and CO with the CRDS technique at the Izaña Global GAW station: instrumental tests, developments, and first measurement results A. Gomez-Pelaez et al. 10.5194/amt-12-2043-2019
- Evaluation and optimization of ICOS atmosphere station data as part of the labeling process C. Yver-Kwok et al. 10.5194/amt-14-89-2021
- Recent advances in measurement techniques for atmospheric carbon monoxide and nitrous oxide observations C. Zellweger et al. 10.5194/amt-12-5863-2019
- Precisious Observations of Atmospheric Carbon Dioxide and Methane Mole Fractions in the Polar Belt of Near-Yenisei Siberia A. Panov et al. 10.3103/S1068373922110024
- Continuous CO2 and CH4 Observations in the Coastal Arctic Atmosphere of the Western Taimyr Peninsula, Siberia: The First Results from a New Measurement Station in Dikson A. Panov et al. 10.3390/atmos12070876
- In situ observations of greenhouse gases over Europe during the CoMet 1.0 campaign aboard the HALO aircraft M. Gałkowski et al. 10.5194/amt-14-1525-2021
- Seasonal Variability in Local Carbon Dioxide Biomass Burning Sources Over Central and Eastern US Using Airborne In Situ Enhancement Ratios J. DiGangi et al. 10.1029/2020JD034525
- Atmospheric CO2 and CH4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea A. Panov et al. 10.3390/atmos13091402
- Accurate measurements of atmospheric carbon dioxide and methane mole fractions at the Siberian coastal site Ambarchik F. Reum et al. 10.5194/amt-12-5717-2019
14 citations as recorded by crossref.
- Local emission and long-range transport impacts on the CO, CO2, and CH4 concentrations at a tropical rural site C. Jain et al. 10.1016/j.atmosenv.2021.118397
- UK greenhouse gas measurements at two new tall towers for aiding emissions verification A. Stavert et al. 10.5194/amt-12-4495-2019
- Detection of CO2 and CH4 Concentrations on a Beijing Urban Road Using Vehicle-Mounted Tunable Diode Laser Absorption Spectroscopy J. Chen et al. 10.3390/photonics10080938
- Marine emissions and trade winds control the atmospheric nitrous oxide in the Galapagos Islands T. Cinay et al. 10.5194/acp-25-4703-2025
- Tri-frequency cavity ring-down spectroscopy for fast ppb-level CO2 measurement H. Wang et al. 10.1016/j.snb.2025.137477
- Atmospheric CO2, CH4, and CO with the CRDS technique at the Izaña Global GAW station: instrumental tests, developments, and first measurement results A. Gomez-Pelaez et al. 10.5194/amt-12-2043-2019
- Evaluation and optimization of ICOS atmosphere station data as part of the labeling process C. Yver-Kwok et al. 10.5194/amt-14-89-2021
- Recent advances in measurement techniques for atmospheric carbon monoxide and nitrous oxide observations C. Zellweger et al. 10.5194/amt-12-5863-2019
- Precisious Observations of Atmospheric Carbon Dioxide and Methane Mole Fractions in the Polar Belt of Near-Yenisei Siberia A. Panov et al. 10.3103/S1068373922110024
- Continuous CO2 and CH4 Observations in the Coastal Arctic Atmosphere of the Western Taimyr Peninsula, Siberia: The First Results from a New Measurement Station in Dikson A. Panov et al. 10.3390/atmos12070876
- In situ observations of greenhouse gases over Europe during the CoMet 1.0 campaign aboard the HALO aircraft M. Gałkowski et al. 10.5194/amt-14-1525-2021
- Seasonal Variability in Local Carbon Dioxide Biomass Burning Sources Over Central and Eastern US Using Airborne In Situ Enhancement Ratios J. DiGangi et al. 10.1029/2020JD034525
- Atmospheric CO2 and CH4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea A. Panov et al. 10.3390/atmos13091402
- Accurate measurements of atmospheric carbon dioxide and methane mole fractions at the Siberian coastal site Ambarchik F. Reum et al. 10.5194/amt-12-5717-2019
Latest update: 18 Jun 2025
Short summary
Atmospheric CO2 and CH4 mole fractions are often measured using greenhouse gas analyzers manufactured by Picarro, Inc. We report biases in these measurements that are related to pressure changes in the optical cavity of the analyzers and occur mainly at low water vapor mole fractions. We provide a method to correct the biases, which contributes to keeping the overall accuracy of CO2 and CH4 measurements with Picarro analyzers within the WMO interlaboratory compatibility goals.
Atmospheric CO2 and CH4 mole fractions are often measured using greenhouse gas analyzers...
