Articles | Volume 14, issue 3
Research article
23 Mar 2021
Research article |  | 23 Mar 2021

The world Brewer reference triad – updated performance assessment and new double triad

Xiaoyi Zhao, Vitali Fioletov, Michael Brohart, Volodya Savastiouk, Ihab Abboud, Akira Ogyu, Jonathan Davies, Reno Sit, Sum Chi Lee, Alexander Cede, Martin Tiefengraber, Moritz Müller, Debora Griffin, and Chris McLinden


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 Xiaoyi Zhao on behalf of the Authors (27 Dec 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (07 Jan 2021) by Mark Weber
RR by Anonymous Referee #2 (20 Jan 2021)
ED: Publish subject to minor revisions (review by editor) (05 Feb 2021) by Mark Weber
AR by Xiaoyi Zhao on behalf of the Authors (10 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (10 Feb 2021) by Mark Weber
Short summary
The Brewer spectrophotometer is one of the main instruments for measurements of atmospheric total column ozone. The global Brewer network largely relies on the world reference instruments (the Brewer triad) operated by Environment and Climate Change Canada since the early 1980s. This study provides an updated assessment (1999–2019) of the reference instrument performance, in terms of random uncertainties and long-term stability.