Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 21
Articles | Volume 19, issue 21
https://doi.org/10.5194/amt-19-6921-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-6921-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 21
Research article
 | 
02 Nov 2026
Research article |  | 02 Nov 2026

Assessing greenhouse gas measurement consistency and traceability in the UK and Ireland atmospheric monitoring network using whole and synthetic air reference materials

Emmal Safi, Joe Pitt, Grant Forster, Christopher Rennick, Simon O'Doherty, Dickon Young, Kanokrat Charoenpornpukdee, Nick Garrard, Dafina Kikaj, Andrew C. Manning, Gerard Spain, Damien Martin, Morgan Lopez, Michel Ramonet, and Kieran Stanley

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Short summary
We compared whole and synthetic-air reference materials (RMs) for investigating offsets in greenhouse gas measurements so data from different sites/networks can be trusted when combined. By sending whole and synthetic-air (RMs) to six sites and measuring under routine field conditions, we found whole-air gives the most precise results, especially for carbon dioxide and nitrous oxide. Synthetic-air worked fairly well for methane but synthetic-air RMs needs lower uncertainty before wide use.
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