Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 17, issue 11
Articles | Volume 17, issue 11
https://doi.org/10.5194/amt-17-3439-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-17-3439-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 11
Research article
 | 
05 Jun 2024
Research article |  | 05 Jun 2024

A new method for estimating megacity NOx emissions and lifetimes from satellite observations

Steffen Beirle and Thomas Wagner

Supplement

https://doi.org/10.5194/amt-17-3439-2024-supplement

Data sets

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

World Cities Database simplemaps https://simplemaps.com/data/world-cities

Global Air Pollutant Emissions v6.1 EDGAR https://edgar.jrc.ec.europa.eu/index.php/dataset_ap61

Download
Short summary
We present a new method for estimating emissions and lifetimes for nitrogen oxides emitted from large cities by using satellite NO2 observations combined with wind fields. The estimate is based on the simultaneous evaluation of the downwind plumes for opposing wind directions. This allows us to derive seasonal mean emissions and lifetimes for 100 cities around the globe.
Read more