Articles | Volume 9, issue 11
Atmos. Meas. Tech., 9, 5509–5522, 2016
https://doi.org/10.5194/amt-9-5509-2016
Atmos. Meas. Tech., 9, 5509–5522, 2016
https://doi.org/10.5194/amt-9-5509-2016
Research article
18 Nov 2016
Research article | 18 Nov 2016

Comparison of two closed-path cavity-based spectrometers for measuring air–water CO2 and CH4 fluxes by eddy covariance

Mingxi Yang et al.

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The exchange of the greenhouse gases carbon dioxide and methane between the ocean and the atmosphere is of critical importance for the earth's climate. Despite this, direct measurements of these fluxes are relatively scarce, especially for methane, in large part due to instrumental challenges. In this paper, we evaluate the performance of two of the latest carbon dioxide and methane flux analysers. We also compare their detection limits to predicted air–sea fluxes of these gases.