Articles | Volume 14, issue 4
https://doi.org/10.5194/amt-14-3119-2021
https://doi.org/10.5194/amt-14-3119-2021
Research article
 | 
28 Apr 2021
Research article |  | 28 Apr 2021

Performance of an open-path near-infrared measurement system for measurements of CO2 and CH4 during extended field trials

Nicholas M. Deutscher, Travis A. Naylor, Christopher G. R. Caldow, Hamish L. McDougall, Alex G. Carter, and David W. T. Griffith

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Latest update: 22 Apr 2024
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Short summary
This work describes the performance of an open-path measurement system for greenhouse gases in an extended field trial. The instrument obtained measurement repeatability of 0.1 % or better for CO2 and CH4 measurements over a 1.55 km one-way pathway. Comparison to co-located in situ measurements allows characterisation of biases relative to global reference scales. The research was done to show the applicability of the technique and its ability to detect atmospheric-relevant sources and sinks.