Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 24, issue 22
Articles | Volume 24, issue 22
https://doi.org/10.5194/acp-24-12687-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-24-12687-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 24, issue 22
Research article
 | 
15 Nov 2024
Research article |  | 15 Nov 2024

Interpreting summertime hourly variation of NO2 columns with implications for geostationary satellite applications

Deepangsu Chatterjee, Randall V. Martin, Chi Li, Dandan Zhang, Haihui Zhu, Daven K. Henze, James H. Crawford, Ronald C. Cohen, Lok N. Lamsal, and Alexander M. Cede

Data sets

Pandonia Global Network level 2 NO2 total columns NASA Goddard Earth Sciences Data and Information Services Center and European Space Agency https://data.pandonia-global-network.org/

Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality NASA Langley Research Center https://asdc.larc.nasa.gov/project/DISCOVER-AQ

Model code and software

geoschem/GCHP International GEOS-Chem Community https://github.com/ geoschem/GCHP.git

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Short summary
We investigate the hourly variation of NO2 columns and surface concentrations by applying the GEOS-Chem model to interpret aircraft and ground-based measurements over the US and Pandora sun photometer measurements over the US, Europe, and Asia. Corrections to the Pandora columns and finer model resolution improve the modeled representation of the summertime hourly variation of total NO2 columns to explain the weaker hourly variation in NO2 columns than at the surface.
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