Dimensioning IRGA gas sampling systems: laboratory and field experiments

Aubinet, Marc; Joly, Lilian; Loustau, Denis; De Ligne, Anne; Chopin, Henri; Cousin, Julien; Chauvin, Nicolas; Decarpenterie, Thomas; Gross, Patrick

doi:https://doi.org/10.5194/amt-9-1361-2016

Articles | Volume 9, issue 3

https://doi.org/10.5194/amt-9-1361-2016

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

https://doi.org/10.5194/amt-9-1361-2016

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

Articles | Volume 9, issue 3

Research article

|

31 Mar 2016

Research article |

| 31 Mar 2016

Dimensioning IRGA gas sampling systems: laboratory and field experiments

Marc Aubinet, Lilian Joly, Denis Loustau, Anne De Ligne, Henri Chopin, Julien Cousin, Nicolas Chauvin, Thomas Decarpenterie, and Patrick Gross

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Final revised paper (published on 31 Mar 2016)
Preprint (discussion started on 20 Oct 2015)

Interactive discussion

Status: closed

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

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- Supplement

SC C3752: 'review comments', Steve Sargent, 06 Nov 2015
- AC C3914: 'Reply to Dr Sargent (first part)', Marc Aubinet, 17 Nov 2015
RC C3776: 'Review comment on Aubinet et al.', Anonymous Referee #1, 09 Nov 2015
- AC C3970: 'Reply to referee 1', Marc Aubinet, 19 Nov 2015
RC C3788: 'Review of DIMENSIONING IRGA GAS SAMPLING SYSTEM', Anonymous Referee #4, 11 Nov 2015
- AC C4053: 'Reply to Referee 4', Marc Aubinet, 24 Nov 2015
RC C4093: 'Late review', Thomas Foken, 26 Nov 2015
- AC C4252: 'Reply to Prof T Foken', Marc Aubinet, 09 Dec 2015

Short summary

Laboratory and field experiments were carried out in order to define suitable configuration ranges for the gas sampling systems of infrared gas analyzers used in eddy covariance measurements. They show that filters may have a strong impact on the pressure drop in the GSS but no significant impact on cut-off frequency. Conversely, the rain cup design was found to be the main limiting factor of cut-off frequency in the field. Its impact on pressure drop was also found to be noteworthy.