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


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Sara Defratyka on behalf of the Authors (18 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (19 Apr 2021) by Glenn Wolfe
RR by Anonymous Referee #3 (06 May 2021)
ED: Publish subject to technical corrections (06 May 2021) by Glenn Wolfe

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Sara Defratyka on behalf of the Authors (19 Jul 2021)   Author's adjustment   Manuscript
EA: Adjustments approved (19 Jul 2021) by Glenn Wolfe
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.