Direct measurement of the oceanic carbon monoxide flux by eddy correlation

This report presents results from a field trial of ship-based air–sea flux measurements of carbon monoxide (CO) by direct eddy correlation with an infrared-laser trace gas analyzer. The analyzer utilizes Off-Axis Integrated-Cavity-Output Spectroscopy (OA-ICOS) to achieve high selectivity for CO, rap...

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Main Authors: B. W. Blomquist, C. W. Fairall, B. J. Huebert, S. T. Wilson
Format: Article
Language:English
Published: Copernicus Publications 2012-12-01
Series:Atmospheric Measurement Techniques
Online Access:http://www.atmos-meas-tech.net/5/3069/2012/amt-5-3069-2012.pdf
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author B. W. Blomquist
C. W. Fairall
B. J. Huebert
S. T. Wilson
author_facet B. W. Blomquist
C. W. Fairall
B. J. Huebert
S. T. Wilson
author_sort B. W. Blomquist
collection DOAJ
description This report presents results from a field trial of ship-based air–sea flux measurements of carbon monoxide (CO) by direct eddy correlation with an infrared-laser trace gas analyzer. The analyzer utilizes Off-Axis Integrated-Cavity-Output Spectroscopy (OA-ICOS) to achieve high selectivity for CO, rapid response (~2 Hz) and low noise. Over a two-day sea trial, peak daytime seawater CO concentrations were ~1.5 nM and wind speeds were consistently 10–12 m s<sup>−1</sup>. A clear diel cycle in CO flux with an early afternoon maximum was observed. An analysis of flux error suggests the effects of non-stationarity are important, and air–sea CO flux measurements are best performed in regions remote from continental pollution sources.
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spelling doaj.art-a64f260f455b4b74963018645a978e542022-12-22T03:43:36ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482012-12-015123069307510.5194/amt-5-3069-2012Direct measurement of the oceanic carbon monoxide flux by eddy correlationB. W. BlomquistC. W. FairallB. J. HuebertS. T. WilsonThis report presents results from a field trial of ship-based air–sea flux measurements of carbon monoxide (CO) by direct eddy correlation with an infrared-laser trace gas analyzer. The analyzer utilizes Off-Axis Integrated-Cavity-Output Spectroscopy (OA-ICOS) to achieve high selectivity for CO, rapid response (~2 Hz) and low noise. Over a two-day sea trial, peak daytime seawater CO concentrations were ~1.5 nM and wind speeds were consistently 10–12 m s<sup>−1</sup>. A clear diel cycle in CO flux with an early afternoon maximum was observed. An analysis of flux error suggests the effects of non-stationarity are important, and air–sea CO flux measurements are best performed in regions remote from continental pollution sources.http://www.atmos-meas-tech.net/5/3069/2012/amt-5-3069-2012.pdf
spellingShingle B. W. Blomquist
C. W. Fairall
B. J. Huebert
S. T. Wilson
Direct measurement of the oceanic carbon monoxide flux by eddy correlation
Atmospheric Measurement Techniques
title Direct measurement of the oceanic carbon monoxide flux by eddy correlation
title_full Direct measurement of the oceanic carbon monoxide flux by eddy correlation
title_fullStr Direct measurement of the oceanic carbon monoxide flux by eddy correlation
title_full_unstemmed Direct measurement of the oceanic carbon monoxide flux by eddy correlation
title_short Direct measurement of the oceanic carbon monoxide flux by eddy correlation
title_sort direct measurement of the oceanic carbon monoxide flux by eddy correlation
url http://www.atmos-meas-tech.net/5/3069/2012/amt-5-3069-2012.pdf
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AT stwilson directmeasurementoftheoceaniccarbonmonoxidefluxbyeddycorrelation