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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Latest update: 01 Dec 2021
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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.