Journal cover Journal topic
Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

Journal metrics

  • IF value: 3.089 IF 3.089
  • IF 5-year<br/> value: 3.700 IF 5-year
    3.700
  • CiteScore<br/> value: 3.59 CiteScore
    3.59
  • SNIP value: 1.273 SNIP 1.273
  • SJR value: 2.026 SJR 2.026
  • IPP value: 3.082 IPP 3.082
  • h5-index value: 45 h5-index 45
Atmos. Meas. Tech., 10, 1803-1812, 2017
http://www.atmos-meas-tech.net/10/1803/2017/
doi:10.5194/amt-10-1803-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
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 Ventrillard1, Irène Xueref-Remy2, Martina Schmidt2,a, Camille Yver Kwok2, Xavier Faïn3, and Daniele Romanini1 1Univ. Grenoble Alpes, CNRS-UMR5588, Laboratoire Interdisciplinaire de Physique (LIPhy), Grenoble, France
2Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR CEA-CNRS 1572, Gif-sur-Yvette, France
3Univ. Grenoble Alpes, Institut des Géosciences de l'Environnement (IGE), Grenoble, France
anow at: Institut für Umweltphysik (IUP), Heidelberg University, Heidelberg, Germany
Abstract. We present the first comparison of carbon monoxide (CO) measurements performed with a portable laser spectrometer that exploits the optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) technique, against a high-performance automated gas chromatograph (GC) with a mercuric oxide reduction gas detector (RGD). First, measurements of atmospheric CO mole fraction were continuously collected in a Paris (France) suburb over 1 week. Both instruments showed an excellent agreement within typically 2 ppb (part per billion in volume), fulfilling the World Meteorological Organization (WMO) recommendation for CO inter-laboratory comparison. The compact size and robustness of the OF-CEAS instrument allowed its operation aboard a small aircraft employed for routine tropospheric air analysis over the French Orléans forest area. Direct OF-CEAS real-time CO measurements in tropospheric air were then compared with later analysis of flask samples by the gas chromatograph. Again, a very good agreement was observed. This work establishes that the OF-CEAS laser spectrometer can run unattended at a very high level of sensitivity ( <  1 ppb) and stability without any periodic calibration.

Citation: Ventrillard, I., Xueref-Remy, I., Schmidt, M., Yver Kwok, C., Faïn, X., and Romanini, D.: Comparison of optical-feedback cavity-enhanced absorption spectroscopy and gas chromatography for ground-based and airborne measurements of atmospheric CO concentration, Atmos. Meas. Tech., 10, 1803-1812, doi:10.5194/amt-10-1803-2017, 2017.
Publications Copernicus
Download
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.
We present a comparison of CO measurements performed with a portable OF-CEAS laser spectrometer...
Share