A Quantum Cascade Laser Absorption Spectrometer devoted to the in situ measurement of atmospheric N2O and CH4 emission fluxes

I Mappé; L Joly; G Durry; X Thomas; T Decarpenterie; J Cousin; N Dumelie; E Roth; A Chakir; P G Grillon

doi:10.1063/1.4790376

A Quantum Cascade Laser Absorption Spectrometer devoted to the in situ measurement of atmospheric N2O and CH4 emission fluxes

Rev Sci Instrum. 2013 Feb;84(2):023103. doi: 10.1063/1.4790376.

Authors

I Mappé¹, L Joly, G Durry, X Thomas, T Decarpenterie, J Cousin, N Dumelie, E Roth, A Chakir, P G Grillon

Affiliation

¹ Groupe de Spectrométrie Moléculaire et Atmosphérique, Unité Mixte de Recherche du Centre National de la Recherche Scientifique (UMR CNRS 7331), UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, 51687 Reims, Cedex 2, France. irene.mappe-fogaing@etudiant.univ-reims.fr

PMID: 23464191
DOI: 10.1063/1.4790376

Abstract

This paper describes a Quantum Cascade Laser Absorption Spectrometer, called "QCLAS" that was developed to monitor in situ greenhouse gases like N2O and CH4, at high temporal resolution and with a high accuracy. The design of the laser sensor is reported as well as its performances in terms of precision error and field deployment capabilities. Finally, to demonstrate the efficiency and the robustness of QCLAS and its suitability for gas emission monitoring and for the determination of fluxes, we report the results from a field campaign, that took place in the Wallis and Futuna Islands in 2011, to investigate the impact of environmental intensive pig farming.