Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 14
Articles | Volume 25, issue 14
https://doi.org/10.5194/acp-25-8271-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-8271-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 14
Research article
 | 
31 Jul 2025
Research article |  | 31 Jul 2025

Satellite detection of NO2 distributions using TROPOMI and TEMPO and comparison with ground-based concentration measurements

Summer Acker, Tracey Holloway, and Monica Harkey

Supplement

https://doi.org/10.5194/acp-25-8271-2025-supplement

Data sets

TROPOMI Level 2 Nitrogen Dioxide total column products, Version 01 Copernicus Sentinel-5P (processed by ESA) https://doi.org/10.5270/S5P-s4ljg54

AirData Pre-Generated Hourly File Downloads EPA https://aqs.epa.gov/aqsweb/airdata/download_files.html#Raw

TEMPO gridded NO2 tropospheric and stratospheric 60 columns V03 (PROVISIONAL) R. Suleiman https://doi.org/10.5067/IS-40E/TEMPO/NO2_L3.003

Model code and software

Wisconsin Horizontal Interpolation Program for Satellites (WHIPS) Center for Sustainability and the Global Environment https://sage.nelson.wisc.edu/data-and-models/wisconsin-horizontal-interpolation-program-for-satellites-whips/

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Short summary
We studied how well satellites detect nitrogen dioxide, a harmful air pollutant, compared with the EPA's ground monitors across the US. Both satellites performed best in areas far from roads, where pollution is lower and more uniform. The newer TEMPO satellite, with hourly data, agreed most closely with monitors at midday and performed better than TROPOMI, a satellite with daily measurements. These findings highlight the ability of satellites to complement existing ground-based monitors.
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