Nitrogen oxides emissions from selected cities in North America, Europe, and East Asia observed by the TROPOspheric Monitoring Instrument (TROPOMI) before and after the COVID-19 pandemic

Lonsdale, Chantelle R.; Sun, Kang

doi:https://doi.org/10.5194/acp-23-8727-2023

Articles | Volume 23, issue 15

https://doi.org/10.5194/acp-23-8727-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-8727-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 15

Research article

|

08 Aug 2023

Research article |

| 08 Aug 2023

Nitrogen oxides emissions from selected cities in North America, Europe, and East Asia observed by the TROPOspheric Monitoring Instrument (TROPOMI) before and after the COVID-19 pandemic

Chantelle R. Lonsdale and Kang Sun

Data sets

Copernicus Sentinel-5P: TROPOMI Level 2 Nitrogen Dioxide total column products European Space Agency (ESA) https://doi.org/10.5270/S5P-s4ljg54

ERA5 hourly data on single levels from 1940 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A., Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.adbb2d47

Model code and software

Kang-Sun-CfA/Oversampling_matlab: NOx city emission paper Kang Sun https://doi.org/10.5281/zenodo.7987812

Short summary

The COVID-19 pandemic, which was caused by the SARS-CoV-2 virus, emerged in 2019, and its still evolving variants have resulted in unprecedented shifts in human activities and anthropogenic emissions into the Earth's atmosphere. We present monthly nitrogen oxide emissions over three major continents from May 2018 to January 2023 to capture variations before and after the COVID-19 pandemic. We focus on a diverse collection of 54 cities to quantify the post-COVID-19 perturbations.