Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 20
Articles | Volume 18, issue 20
https://doi.org/10.5194/amt-18-5569-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-5569-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 20
Research article
 | 
21 Oct 2025
Research article |  | 21 Oct 2025

Assessing nitrogen dioxide monitoring techniques: a comparative analysis of Sentinel-5 Precursor satellite and ground measurements in Catalonia

Danielly Garcia Santos and Maria Eulàlia Parés

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Short summary
This study analyzes nitrogen dioxide available data in Catalonia, a region with diverse geography and climate, by comparing satellite- and ground-based data from 2022–2023. Analyses at various scales showed a moderate overall correlation – stronger in suburban areas and weaker in urban zones. Correlations peaked in winter and autumn, likely due to stable weather. The findings suggest that satellite data can complement ground monitoring but require adjustments for regional and climatic variations.
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