Comprehensive laboratory and field testing of cavity ring-down spectroscopy analyzers measuring H2O, CO2, CH4 and CO

Yver Kwok, C.; Laurent, O.; Guemri, A.; Philippon, C.; Wastine, B.; Rella, C. W.; Vuillemin, C.; Truong, F.; Delmotte, M.; Kazan, V.; Darding, M.; Lebègue, B.; Kaiser, C.; Xueref-Rémy, I.; Ramonet, M.

doi:https://doi.org/10.5194/amt-8-3867-2015

Articles | Volume 8, issue 9

https://doi.org/10.5194/amt-8-3867-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-8-3867-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 9

Research article

|

23 Sep 2015

Research article |

| 23 Sep 2015

Comprehensive laboratory and field testing of cavity ring-down spectroscopy analyzers measuring H₂O, CO₂, CH₄ and CO

C. Yver Kwok, O. Laurent, A. Guemri, C. Philippon, B. Wastine, C. W. Rella, C. Vuillemin, F. Truong, M. Delmotte, V. Kazan, M. Darding, B. Lebègue, C. Kaiser, I. Xueref-Rémy, and M. Ramonet

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Final revised paper (published on 23 Sep 2015)
Preprint (discussion started on 27 Apr 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C1346: 'Review of, Yver Kwok et al., “Comprehensive laboratory and field testing of cavity ring-down spectroscopy analyzers measuring H2O, CO2, CH4 and CO”.', Anonymous Referee #1, 02 Jun 2015
- AC C2360: 'Answer to the referee #1', Camille Yver Kwok, 01 Aug 2015
RC C1974: 'Review of Yver Kwok et al.', Anonymous Referee #2, 13 Jul 2015
- AC C2361: 'Answer to the referee #2', Camille Yver Kwok, 01 Aug 2015

Short summary

We present the results of tests of CRDS instruments in the laboratory (47 instruments) and in the field (15 instruments). We demonstrate that, thanks to rigorous testing, newer models generally perform better than older models, especially in terms of reproducibility between instruments. In the field, we see the importance of individual diagnostics during the installation phase, and we show the value of calibration and target gases that assess the quality of the data.