Articles | Volume 22, issue 4
Atmos. Chem. Phys., 22, 2745–2767, 2022
https://doi.org/10.5194/acp-22-2745-2022
Atmos. Chem. Phys., 22, 2745–2767, 2022
https://doi.org/10.5194/acp-22-2745-2022

Research article 01 Mar 2022

Research article | 01 Mar 2022

Variability of nitrogen oxide emission fluxes and lifetimes estimated from Sentinel-5P TROPOMI observations

Kezia Lange et al.

Data sets

Sentinel-5P Pre-Operations Data Hub S5P Data Hub https://s5phub.copernicus.eu/

Copernicus Climate Data Store Copernicus https://doi.org/10.24381/cds.adbb2d47

EDGAR v5.0 GlobalAir Pollutant Emissions EDGAR https://edgar.jrc.ec.europa.eu/overview.php?v=50_AP

Environmental Protection Agency’s Continuous Emission Monitoring System EPA CEMS https://ampd.epa.gov/ampd/

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Short summary
In this study, we investigated short time variability of NOx emissions and lifetimes on a global scale. We combined 2 years of satellite Sentinel-5P TROPOMI tropospheric NO2 column data with wind data. Fifty NOx sources distributed around the world are analyzed. The retrieved emissions show a clear seasonal dependence. NOx lifetime shows a latitudinal dependence but only a week seasonal dependence. NOx emissions show a clear weekly pattern which in contrast is not visible for NOx lifetimes.
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