Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 16
Articles | Volume 19, issue 16
https://doi.org/10.5194/amt-19-5539-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-5539-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 16
Research article
 | 
28 Aug 2026
Research article |  | 28 Aug 2026

Evaluation of Pandora HCHO and NO2 with airborne in situ observations

Abby Sebol, Glenn M. Wolfe, Timothy Canty, Jason St. Clair, Erin Delaria, Jennifer Kaiser, Nidhi Desai, Andrew Rollins, Eleanor Waxman, Kristen Zuraski, Bryan Place, Apoorva Pandey, Akanksha Singh, Allison Ring, Charles Gatebe, and Jonathan Dean-Day

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Latest update: 28 Aug 2026
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Short summary
Ground-based spectrometers measuring HCHO and NO2 were compared to airborne in situ observations in the Summer 2023. Total column HCHO is within uncertainty, but with high biases near the surface. NO2 results are highly sensitive to the viewing angle of the ground monitor which must be considered during validation studies. Spectrometers in NYC show good agreement with a geostationary satellite on clear-sky days. Further quantified uncertainty for the monitors is necessary.
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