Experimental evaluation of water vapour cross-sensitivity for accurate eddy covariance measurement of CO2 flux using open-path CO2/H2O gas analysers

Experimental evaluation of water vapour cross-sensitivity for accurate eddy covariance measurement of CO2 flux using open-path CO2/H2O gas analysers

Non-dispersive infrared CO2/H2O gas analysers produce erroneous CO2 outputs when CO2 is measured in humid air, unless a correction for water vapour cross-sensitivity is applied. Spectroscopic cross-sensitivities arising from direct absorption interference and from the pressure broadening effect are...

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Bibliographic Details
Main Authors: Fumiyoshi Kondo, Keisuke Ono, Masayoshi Mano, Akira Miyata, Osamu Tsukamoto
Format: Article
Language:English
Published: Stockholm University Press 2014-10-01
Series:Tellus: Series B, Chemical and Physical Meteorology
Subjects:
open-path CO2/H2O gas analyser
cross-sensitivity
non-dispersive infrared gas analyser
eddy covariance technique
CO2 flux
Online Access:http://www.tellusb.net/index.php/tellusb/article/download/23803/pdf_1

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http://www.tellusb.net/index.php/tellusb/article/download/23803/pdf_1

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