Articles | Volume 14, issue 4
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


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Nicholas Deutscher on behalf of the Authors (15 Mar 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (24 Mar 2021) by Andreas Hofzumahaus
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.