The development and evaluation of airborne in situ N<sub>2</sub>O and CH<sub>4</sub> sampling using a quantum cascade laser absorption spectrometer (QCLAS)

Pitt, J. R.; Le Breton, M.; Allen, G.; Percival, C. J.; Gallagher, M. W.; Bauguitte, S. J.-B.; O'Shea, S. J.; Muller, J. B. A.; Zahniser, M. S.; Pyle, J.; Palmer, P. I.

doi:https://doi.org/10.5194/amt-9-63-2016

Articles | Volume 9, issue 1

https://doi.org/10.5194/amt-9-63-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Greenhouse gAs Uk and Global Emissions (GAUGE) project (ACP/AMT...

https://doi.org/10.5194/amt-9-63-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 1

Research article

|

15 Jan 2016

Research article |

| 15 Jan 2016

The development and evaluation of airborne in situ N₂O and CH₄ sampling using a quantum cascade laser absorption spectrometer (QCLAS)

J. R. Pitt, M. Le Breton, G. Allen, C. J. Percival, M. W. Gallagher, S. J.-B. Bauguitte, S. J. O'Shea, J. B. A. Muller, M. S. Zahniser, J. Pyle, and P. I. Palmer

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Final revised paper (published on 15 Jan 2016)
Preprint (discussion started on 27 Aug 2015)

Interactive discussion

Status: closed

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

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- Supplement

RC C3101: 'Review of Pitt et al.', Anonymous Referee #1, 23 Sep 2015
- AC C3977: 'Authors' Response to Anonymous Referee #1', Joseph Pitt, 19 Nov 2015
RC C3104: 'Referee review', Anonymous Referee #2, 23 Sep 2015
- AC C3978: 'Authors' Response to Anonymous Referee #2', Joseph Pitt, 19 Nov 2015
AC C3974: 'Author Comment – Technical Correction to Uncertainty Calculation', Joseph Pitt, 19 Nov 2015
AC C3976: 'Amended Manuscript in Response to Reviewers' Comments', Joseph Pitt, 19 Nov 2015

Short summary

We present details of an Aerodyne quantum cascade laser absorption spectrometer (QCLAS) used to make airborne measurements of N₂O and CH₄, including its configuration for use on board an aircraft. Two different methods to correct for the influence of water vapour on the measurements are evaluated. We diagnose a sensitivity of the instrument to changes in pressure, introduce a new calibration procedure to account for this effect, and assess its performance.

The development and evaluation of airborne in situ N2O and CH4 sampling using a quantum cascade laser absorption spectrometer (QCLAS)

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Interactive discussion

The development and evaluation of airborne in situ N₂O and CH₄ sampling using a quantum cascade laser absorption spectrometer (QCLAS)