Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 14, issue 3
Articles | Volume 14, issue 3
https://doi.org/10.5194/amt-14-2261-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-14-2261-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
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

Supplement

https://doi.org/10.5194/amt-14-2261-2021-supplement

Data sets

Pandora 103 total column ozone data at Downsview, Toronto, Canada Pandonia Global Network http://data.pandonia-global-network.org/Downsview/Pandora103s1/L2/Pandora103s1_Downsview_L2Tot_rout0p1-7.txt

SBUV data Goddard Space Flight Center, Nasa https://acd-ext.gsfc.nasa.gov/anonftp/toms/sbuv/AGGREGATED/sbuv_aggregated_toronto_065.txt

OMI data Goddard Space Flight Center, Nasa https://avdc.gsfc.nasa.gov/pub/data/satellite/Aura/OMI/V03/L2OVP/OMDOAO3/aura_omi_l2ovp_omdoao3_v03_toronto_065.txt

OMI data Goddard Space Flight Center, Nasa https://avdc.gsfc.nasa.gov/pub/data/satellite/Aura/OMI/V03/L2OVP/OMTO3/aura_omi_l2ovp_omto3_v8.5_toronto_065.txt

OMPS-NPP L2 NM Ozone (O3) Total Column swath orbital V2, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC) G. Jaross https://doi.org/10.5067/0WF4HAAZ0VHK

Total Ozone Column Netherlands Space Office http://www.tropomi.eu/data-products/total-ozone-column

MERRA-2 tavg1\_2d\_slv\_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Single-Level Diagnostics V5.12.4, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC) Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/VJAFPLI1CSIV

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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.
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