Simultaneous detection of C2H6, CH4, and δ13C-CH4 using optical feedback cavity-enhanced absorption spectroscopy in the mid-infrared region: towards application for dissolved gas measurements

Lechevallier, Loic; Grilli, Roberto; Kerstel, Erik; Romanini, Daniele; Chappellaz, Jérôme

doi:https://doi.org/10.5194/amt-12-3101-2019

Articles | Volume 12, issue 6

https://doi.org/10.5194/amt-12-3101-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Advances in cavity-based techniques for measurements of atmospheric...

https://doi.org/10.5194/amt-12-3101-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 6

Research article

|

12 Jun 2019

Research article |

| 12 Jun 2019

Simultaneous detection of C₂H₆, CH₄, and δ¹³C-CH₄ using optical feedback cavity-enhanced absorption spectroscopy in the mid-infrared region: towards application for dissolved gas measurements

Loic Lechevallier, Roberto Grilli, Erik Kerstel, Daniele Romanini, and Jérôme Chappellaz

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Final revised paper (published on 12 Jun 2019)
Preprint (discussion started on 22 Nov 2018)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Report on the manuscript #amt-2018-398', Anonymous Referee #1, 28 Feb 2019
- AC1: 'Reply to Referee #1', Roberto Grilli, 26 Mar 2019
RC2: 'Simultaneous Detection of C2H6, CH4 and δ13C-CH4 Using Optical Feedback Cavity Enhanced Absorption Spectroscopy in the Mid-Infrared Region: Towards Application for Dissolved Gas Measurements', Anonymous Referee #2, 03 Mar 2019
- AC2: 'Reply to Referee #2', Roberto Grilli, 26 Mar 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Roberto Grilli on behalf of the Authors (26 Mar 2019) Author's response Manuscript

ED: Publish as is (26 Mar 2019) by Katherine Manfred

Short summary

In this work we describe a highly sensitive optical spectrometer for simultaneous measurement of methane, ethane, and the isotopic composition of methane. The coupling of the spectrometer with a dissolved gas extraction system will provide a suitable tool for understanding the origins of the dissolved hydrocarbons and discriminate between the different sources (e.g., biogenic vs. thermogenic).