DE LIGNE, Anne; JOLY, Lilian; COUSIN, Julien; CHAUVIN, Nicolas; DECARPENTERIE, Thomas; CHIPEAUX, Christophe; LOUSTAU, Denis; AUBINET, Marc

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

DE LIGNE, Anne
Université de Liège

JOLY, Lilian
Groupe de spectrométrie moléculaire et atmosphérique [GSMA]

COUSIN, Julien
Groupe de spectrométrie moléculaire et atmosphérique [GSMA]

Langue

Autre communication scientifique (congrès sans actes - poster - séminaire...)

Ce document a été publié dans

1st ICOS Conference, 2014-09-23, Bruxelles. 2014

Résumé en anglais

The gas sampling system (GSS), which carries air from the sampling point to the IRGA, is an essential component of the eddy covariance system. It has to meet several constraints, among which minimizing high frequency attenuation of concentration measurement and keeping pressure drop in the measurement cell in an acceptable range. Rain cup, filters, tubes and pumps are key elements of this system and need proper dimensioning. The elaboration of the ICOS protocol for IRGA required such dimensioning and optimization. Laboratory and field measurements were carried out with this aim. In the laboratory, a dynamic calibration bench was developed to investigate experimentally the pressure drop and the concentration fluctuation attenuation caused by different filters. In the field, three LI-7200 equipped with different GSS were installed and run at the Dorinne Terrestrial Observatory (ICOS-Belgium).< Réduire

Mots clés

LI-7200

filter

Mots clés en anglais

rain-cup

Métadonnées

Partager cette publication !

Licence d’utilisation du document

IRGA gas sampling system dimensioning: laboratory and field experiments

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés

Mots clés en anglais

URI

Origine

Unités de recherche