Articles | Volume 22, issue 15
Atmos. Chem. Phys., 22, 10319–10351, 2022
https://doi.org/10.5194/acp-22-10319-2022
Atmos. Chem. Phys., 22, 10319–10351, 2022
https://doi.org/10.5194/acp-22-10319-2022
Research article
12 Aug 2022
Research article | 12 Aug 2022

Air quality impacts of COVID-19 lockdown measures detected from space using high spatial resolution observations of multiple trace gases from Sentinel-5P/TROPOMI

Pieternel F. Levelt et al.

Data sets

TROPOMI Level 2 Nitrogen Dioxide total column products. Version 02 Copernicus Sentinel-5P (processed by ESA) https://doi.org/10.5270/S5P-9bnp8q8

TROPOMI Level 2 Formaldehyde Total Column products. Version 02 Copernicus Sentinel-5P (processed by ESA) https://doi.org/10.5270/S5P-vg1i7t0

TROPOMI Level 2 Carbon Monoxide total column products. Version 02 Copernicus Sentinel-5P (processed by ESA) https://doi.org/10.5270/S5P-bj3nry0

QA4ECV HCHO tropospheric column data from OMI (Version 1.1) I. De Smedt, H. Yu, A. Richter, S. Beirle, H. Eskes, K. F. Boersma, M. Van Roozendael, J. Van Geffen, A. Lorente, and E. Peters https://doi.org/10.18758/71021031

QA4ECV NO2 tropospheric and stratospheric vertical column data from OMI (Version 1.1) K. F. Boersma, H. Eskes, A. Richter, I. De Smedt, A. Lorente, S. Beirle, J. Van Geffen, E. Peters, M. Van Roozendael, and T. Wagner https://doi.org/10.21944/qa4ecv-no2-omi-v1.1

TROPOMI glyoxal tropospheric columns C. Lerot https://doi.org/10.18758/71021069

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Short summary
Using the COVID-19 lockdown periods as an example, we show how Sentinel-5P/TROPOMI trace gas data (NO2, SO2, CO, HCHO and CHOCHO) can be used to understand impacts on air quality for regions and cities around the globe. We also provide information for both experienced and inexperienced users about how we created the data using state-of-the-art algorithms, where to get the data, methods taking meteorological and seasonal variability into consideration, and insights for future studies.
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