Ethane measurement by Picarro CRDS G2201-i in laboratory and field conditions: potential and limitations

Defratyka, Sara M.; Paris, Jean-Daniel; Yver-Kwok, Camille; Loeb, Daniel; France, James; Helmore, Jon; Yarrow, Nigel; Gros, Valérie; Bousquet, Philippe

doi:https://doi.org/10.5194/amt-14-5049-2021

Articles | Volume 14, issue 7

https://doi.org/10.5194/amt-14-5049-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-14-5049-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 7

Research article

|

27 Jul 2021

Research article |

| 27 Jul 2021

Ethane measurement by Picarro CRDS G2201-i in laboratory and field conditions: potential and limitations

Sara M. Defratyka, Jean-Daniel Paris, Camille Yver-Kwok, Daniel Loeb, James France, Jon Helmore, Nigel Yarrow, Valérie Gros, and Philippe Bousquet

Data sets

Defratyka et al (2021); Ethane measurement by Picarro CRDS G2201-i in laboratory and field conditions: potential and limitations S. Defratyka, J.-D. Paris, C. Yver Kwok, D. Loeb, J. France, J. Helmore, N. Yarrow, V. Gros, and P. Bousquet https://doi.org/10.18160/hr89-ks44

Short summary

We consider the possibility of using the CRDS Picarro G2201-i instrument, originally designed for isotopic CH₄ and CO₂, for measurements of ethane : methane in near-source conditions. The work involved laboratory tests, a controlled release experiment and mobile measurements. We show the potential of determining ethane : methane with 50 ppb ethane uncertainty. The instrument can correctly estimate the ratio in CH₄ enhancements of 1 ppm and more, as can be found at strongly emitting sites.