Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 11
Articles | Volume 18, issue 11
https://doi.org/10.5194/amt-18-2397-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-2397-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 11
Research article
 | 
05 Jun 2025
Research article |  | 05 Jun 2025

Retrieval of NO2 profiles from 3 years of Pandora MAX-DOAS measurements in Toronto, Canada

Ramina Alwarda, Kristof Bognar, Xiaoyi Zhao, Vitali Fioletov, Jonathan Davies, Sum Chi Lee, Debora Griffin, Alexandru Lupu, Udo Frieß, Alexander Cede, Yushan Su, and Kimberly Strong

Data sets

Replication Data for: Retrieval of NO2 profiles from three years of Pandora MAX-DOAS measurements in Toronto, Canada Ramina Alwarda et al. https://doi.org/10.5683/SP3/J8PDHW

TROPOMI NO 2 data ESA (European Space Agency) https://dataspace.copernicus.eu/explore-data/data-collections/sentinel-data/sentinel-5p

OMI/Aura Nitrogen Dioxide (NO2) Total and Tropospheric Column 1-orbit L2 Swath 13x24 km V003 N. A. Krotkov et al. https://doi.org/10.5067/Aura/OMI/DATA2017

National Air Pollution Surveillance program, in situ surface NO2 data NAPS https://data-donnees.az.ec.gc.ca/data/air/monitor/national-air-pollution-surveillance-naps-program/

Pandora L1 multi-axis spectra and L2 direct-Sun NO2 total columns PGN (Pandonia Global Network) https://data.pandonia-global-network.org/Downsview/Pandora103s1/

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Short summary
Nitrogen dioxide (NO2) is a pollutant with a short lifetime and large variability, but there are limited measurements of its distribution in the lower atmosphere. We present a new 3-year dataset of NO2 vertical profiles in Toronto, Canada, and evaluate it using NO2 from satellite and surface monitoring networks and simulations by an air quality forecast model. We quantify and explain the differences among the datasets to provide information that can be used to understand NO2 variability.
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