Articles | Volume 13, issue 6
https://doi.org/10.5194/amt-13-3167-2020
© Author(s) 2020. 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-13-3167-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Jun 2020
Research article |
| 16 Jun 2020
| 16 Jun 2020
Correcting the impact of the isotope composition on the mixing ratio dependency of water vapour isotope measurements with cavity ring-down spectrometers
Geophysical Institute, University of Bergen, and Bjerknes Centre for Climate Research, Bergen, Norway
Alexandra Touzeau
Geophysical Institute, University of Bergen, and Bjerknes Centre for Climate Research, Bergen, Norway
Harald Sodemann
Geophysical Institute, University of Bergen, and Bjerknes Centre for Climate Research, Bergen, Norway
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21 citations as recorded by crossref.
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- Experimental investigation of the stable water isotope distribution in an Alpine lake environment (L-WAIVE) P. Chazette et al. 10.5194/acp-21-10911-2021
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- FLIIMP - a community software for the processing, calibration, and reporting of liquid water isotope measurements on cavity-ring down spectrometers H. Sodemann et al. 10.1016/j.mex.2023.102297
- Data treatment and corrections for estimating H2O and CO2 isotope fluxes from high-frequency observations R. Moonen et al. 10.5194/amt-16-5787-2023
- Comparison of Mann–Kendall and Şen’s innovative trend method for climatic parameters over Nigeria’s climatic zones E. Agbo et al. 10.1007/s00382-022-06521-9
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- The triple oxygen isotope composition of phytoliths, a new proxy of atmospheric relative humidity: controls of soil water isotope composition, temperature, CO<sub>2</sub> concentration and relative humidity C. Outrequin et al. 10.5194/cp-17-1881-2021
- A modular field system for near-surface, vertical profiling of the atmospheric composition in harsh environments using cavity ring-down spectroscopy A. Seidl et al. 10.5194/amt-16-769-2023
- Isotopic measurements in water vapor, precipitation, and seawater during EUREC4A A. Bailey et al. 10.5194/essd-15-465-2023
- 17O‐excess and d‐excess of atmospheric water vapor measured by cavity ring‐down spectrometry: Evidence of a matrix effect and implication for the calibration procedure C. Voigt et al. 10.1002/rcm.9227
Latest update: 23 Apr 2024
Short summary
We find that the known mixing ratio dependence of laser spectrometers for water vapour isotope measurements varies with isotope composition. We have developed a scheme to correct for this isotope-composition-dependent bias. The correction is most substantial at low mixing ratios. Stability tests indicate that the first-order dependency is a constant instrument characteristic. Water vapour isotope measurements at low mixing ratios can now be corrected by following our proposed procedure.
We find that the known mixing ratio dependence of laser spectrometers for water vapour isotope...
