Article (Scientific journals)
Dimensioning IRGA gas sampling systems: laboratory and field experiments
Aubinet, Marc; Joly, Lilian; Loustau, Denis et al.
2016In Atmospheric Measurement Techniques, 9, p. 1361-1367
Peer Reviewed verified by ORBi
 

Files


Full Text
Aubinet_GSS_AMT_2016.pdf
Publisher postprint (555.7 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
GSSs; IRGAs; Eddy covariance technique; Gaz sampling systems; Infrared gas analyzers
Abstract :
[en] Both laboratory and field experiments were carried out in order to define suitable configuration ranges for the gas sampling systems (GSSs) of infrared gas analyzers (IRGAs) used in eddy covariance measurements. In the laboratory, an original dynamic calibration bench was developed in order to test the frequency attenuation and pressure drop generated by filters. In the field, three IRGAs of the same type equipped with different filters or different rain caps were installed and run and the real frequency response of the complete setup was tested. The main results are as follows. – Filters may have a strong impact on the pressure drop in the GSS and this impact increases with flow rate. – Conversely, no impact of the tested filters on cut-off frequency was found, GSSs with and without filters presenting similar cut-off frequencies. – The main limiting factor of cut-off frequency in the field was found to be the rain cap design. In addition, the impact of this design on pressure drop was also found to be noteworthy.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Aubinet, Marc ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Joly, Lilian;  Université de Reims, France > Groupe de Spectrométrie Moléculaire et Atmosphérique
Loustau, Denis;  INRA, Villenave d’Ornon, France > UMR ISPA
De Ligne, Anne ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Chopin, Henri ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Cousin, Julien;  Université de Reims, France > Groupe de Spectrométrie Moléculaire et Atmosphérique
Chauvin, Nicolas;  Université de Reims, France > Groupe de Spectrométrie Moléculaire et Atmosphérique
Decarpenterie, Thomas;  Université de Reims, France > Groupe de Spectrométrie Moléculaire et Atmosphérique
Gross, Patrick;  INRA, Champenoux, France > UMR EEF
Language :
English
Title :
Dimensioning IRGA gas sampling systems: laboratory and field experiments
Publication date :
31 March 2016
Journal title :
Atmospheric Measurement Techniques
ISSN :
1867-1381
eISSN :
1867-8548
Publisher :
Copernicus, Katlenburg-Lindau, Germany
Volume :
9
Pages :
1361-1367
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 May 2016

Statistics


Number of views
42 (7 by ULiège)
Number of downloads
188 (2 by ULiège)

Scopus citations®
 
16
Scopus citations®
without self-citations
14
OpenCitations
 
15

Bibliography


Similar publications



Contact ORBi