Articles | Volume 16, issue 2
https://doi.org/10.5194/gmd-16-509-2023
https://doi.org/10.5194/gmd-16-509-2023
Model evaluation paper
 | 
25 Jan 2023
Model evaluation paper |  | 25 Jan 2023

Comparing Sentinel-5P TROPOMI NO2 column observations with the CAMS regional air quality ensemble

John Douros, Henk Eskes, Jos van Geffen, K. Folkert Boersma, Steven Compernolle, Gaia Pinardi, Anne-Marlene Blechschmidt, Vincent-Henri Peuch, Augustin Colette, and Pepijn Veefkind

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Latest update: 13 Dec 2024
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Short summary
We focus on the challenges associated with comparing atmospheric composition models with satellite products such as tropospheric NO2 columns. The aim is to highlight the methodological difficulties and propose sound ways of doing such comparisons. Building on the comparisons, a new satellite product is proposed and made available, which takes advantage of higher-resolution, regional atmospheric modelling to improve estimates of troposheric NO2 columns over Europe.