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

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Final revised paper (published on 27 Jul 2021)
Preprint (discussion started on 17 Oct 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of Manuscript', Anonymous Referee #1, 14 Nov 2020
- AC1: 'Reply on RC1', Sara Defratyka, 05 Feb 2021
RC2: 'review of Defratyka et al.', Anonymous Referee #2, 25 Nov 2020
- AC2: 'Reply on RC2', Sara Defratyka, 05 Feb 2021
RC3: 'Review amt-2020-410', Anonymous Referee #3, 02 Dec 2020
- AC3: 'Reply on RC3', Sara Defratyka, 05 Feb 2021

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.