A new instrument for stable isotope measurements of 13C and 18O in CO2 – instrument performance and ecological application of the Delta Ray IRIS analyzer

Braden-Behrens, Jelka; Yan, Yuan; Knohl, Alexander

doi:https://doi.org/10.5194/amt-10-4537-2017

Articles | Volume 10, issue 11

https://doi.org/10.5194/amt-10-4537-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-10-4537-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 11

Research article

|

24 Nov 2017

Research article |

| 24 Nov 2017

A new instrument for stable isotope measurements of ¹³C and ¹⁸O in CO₂ – instrument performance and ecological application of the Delta Ray IRIS analyzer

Jelka Braden-Behrens, Yuan Yan, and Alexander Knohl

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Final revised paper (published on 24 Nov 2017)
Supplement to the final revised paper
Preprint (discussion started on 11 May 2017)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review', Anonymous Referee #1, 25 Jun 2017
- AC1: 'Author’s reply to the referees comments to manuscript AMT-2017-120 - Anonymous referee 1', Jelka Braden-Behrens, 17 Aug 2017
RC2: 'Review of AMT-2017-120', Anonymous Referee #2, 27 Jun 2017
- AC2: 'Author’s reply to the referees comments to manuscript AMT-2017-120 - Anonymous referee 2', Jelka Braden-Behrens, 17 Aug 2017
RC3: 'Report on manuscript by Braden-Behrens et al. (amt-2017-120, 2017)', Anonymous Referee #3, 13 Jul 2017
- AC3: 'Author’s reply to the referees comments to manuscript AMT-2017-120 - Anonymous referee 3', Jelka Braden-Behrens, 17 Aug 2017

Peer-review completion

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

AR by Jelka Braden-Behrens on behalf of the Authors (07 Sep 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (11 Sep 2017) by Frank Keppler

ED: Publish as is (13 Oct 2017) by Frank Keppler

Short summary

Here we present the instrument characteristics and field applicability of the newly developed Delta Ray analyzer for stable isotope measurements in CO₂. We used this analyzer to measure the concentration and the isotopic composition of CO₂ exchange in a managed beech forest for 3 months in autumn 2015. During this period an early frost event occurred and our measurements suggest that this short event strongly influenced the measured isotopic composition of CO₂ exchange.