Articles | Volume 10, issue 5
Atmos. Meas. Tech., 10, 1803–1812, 2017
https://doi.org/10.5194/amt-10-1803-2017
Atmos. Meas. Tech., 10, 1803–1812, 2017
https://doi.org/10.5194/amt-10-1803-2017

Research article 16 May 2017

Research article | 16 May 2017

Comparison of optical-feedback cavity-enhanced absorption spectroscopy and gas chromatography for ground-based and airborne measurements of atmospheric CO concentration

Irène Ventrillard et al.

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Cited articles

Chen, H., Karion, A., Rella, C. W., Winderlich, J., Gerbig, C., Filges, A., Newberger, T., Sweeney, C., and Tans, P. P.: Accurate measurements of carbon monoxide in humid air using the cavity ring-down spectroscopy (CRDS) technique, Atmos. Meas. Tech., 6, 1031–1040, https://doi.org/10.5194/amt-6-1031-2013, 2013.
Chevalier, F., Engelen, R. J., Carouge, C., Conway, T. J., Peylin, P., Pickett-heaps, C., Ramonet, M., and Rayner, P. J.: AIRS-based versus flask-based estimation of carbon surface fluxes, J. Geophys. Res., 114, D20303, https://doi.org/10.1029/2009JD012311, 2009.
Courtillot, I., Morville, J., Motto-Ros, V., and Romanini, D.: Sub-ppb NO2 detection by optical feedback cavity-enhanced absorption spectroscopy with a blue diode laser, Appl. Phys. B, 85, 407–412, https://doi.org/10.1007/s00340-006-2354-3, 2006.
Derwent, R. G., Ryall, D. B., Jennings, S. G., Spain, T. G., and Simmonds, P. G.: Black carbon aerosol and carbon monoxide in European regionally polluted air masses at Mace Head, Ireland during 1995-1998, Atmos. Environ., 35, 6371–6378, https://doi.org/10.1016/S1352-2310(01)00394-6, 2001.
Faïn, X., Chappellaz, J., Rhodes, R. H., Stowasser, C., Blunier, T., McConnell, J. R., Brook, E. J., Preunkert, S., Legrand, M., Debois, T., and Romanini, D.: High resolution measurements of carbon monoxide along a late Holocene Greenland ice core: evidence for in situ production, Clim. Past, 10, 987–1000, https://doi.org/10.5194/cp-10-987-2014, 2014.
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Short summary
We present a comparison of CO measurements performed with a portable OF-CEAS laser spectrometer against a high-performance gas chromatograph. For both surface and airborne measurements, the instruments show an excellent agreement very close to the 2 ppb World Meteorological Organization recommendation for CO inter-laboratory comparison. This work establishes that this laser technique allows for the development of sensitive, compact, robust and reliable instruments for in situ trace-gas analysis.