Measurement report: Global Total Ozone Records – Part 1: Ground-based monitoring networks performance assessment and status review

Zhao, Xiaoyi; Fioletov, Vitali; Petropavlovskikh, Irina; Velazco, Voltaire; Redondas, Alberto; Solomatnikova, Anna; Vigouroux, Corinne; Strong, Kimberly; Van Roozendael, Michel; Pazmino, Andrea; Hanisco, Thomas F.; Cede, Alexander; Tiefengraber, Martin; Labow, Gordon; Fujiwara, Masatomo; van der A, Ronald; Griffin, Debora; McLinden, Chris; Kralidis, Tom; Steinbrecht, Wolfgang; Lee, Sum Chi

doi:10.5194/acp-26-13693-2026

Articles | Volume 26, issue 19

https://doi.org/10.5194/acp-26-13693-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Achievements and perspectives of the Network for the Detection...

https://doi.org/10.5194/acp-26-13693-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 19

Measurement report

|

30 Sep 2026

Measurement report |

| 30 Sep 2026

Measurement report: Global Total Ozone Records – Part 1: Ground-based monitoring networks performance assessment and status review

Xiaoyi Zhao, Vitali Fioletov, Irina Petropavlovskikh, Voltaire Velazco, Alberto Redondas, Anna Solomatnikova, Corinne Vigouroux, Kimberly Strong, Michel Van Roozendael, Andrea Pazmino, Thomas F. Hanisco, Alexander Cede, Martin Tiefengraber, Gordon Labow, Masatomo Fujiwara, Ronald van der A, Debora Griffin, Chris McLinden, Tom Kralidis, Wolfgang Steinbrecht, and Sum Chi Lee

Data sets

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

MERRA-2 reanalysis total ozone Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/VJAFPLI1CSIV

JRA3Q reanalysis total ozone JMA https://doi.org/10.5065/AVTZ-1H78

Brewer, Dobson, and Filter total ozone records on the World Ozone and Ultraviolet Radiation Data Centre WOUDC https://doi.org/10.14287/10000004

NDACC MAX-DOAS Service data sets from AUTH-LAP stations available at the NDACC and EVDC Data Handling Facilities A. Bais et al. https://doi.org/10.21336/2van-tm26

EUBREWNET ozone products for the Izana (Spain) station A. Redondas https://doi.org/10.48801/eubrewnet.izana

TROPOMI Level 2 Ozone Total Column products Copernicus Sentinel-5P https://doi.org/10.5270/S5P-fqouvyz

Multi-Sensor Reanalysis (MSR) of total ozone, version 2 R. J. van der A et al. https://doi.org/10.21944/temis-ozone-msr2

Short summary

Total column ozone (TCO) records from six ground-based networks are compiled and evaluated using multiple satellites and reanalysis data. Station performance (1940–2024) is assessed using harmonized metrics. Ground-based annual means agree within ±2 %, while pre-satellite reanalyses show larger biases (up to −5 %). The resulting quality-assessed dataset supports trend analysis and satellite validation.