Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
Articles | Volume 13, issue 7
Articles | Volume 13, issue 7
Atmos. Meas. Tech., 13, 3751–3767, 2020
https://doi.org/10.5194/amt-13-3751-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: TROPOMI on Sentinel-5 Precursor: first year in operation (AMT/ACP...

Atmos. Meas. Tech., 13, 3751–3767, 2020
https://doi.org/10.5194/amt-13-3751-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 7

Research article 10 Jul 2020

Research article | 10 Jul 2020

TROPOMI–Sentinel-5 Precursor formaldehyde validation using an extensive network of ground-based Fourier-transform infrared stations

Corinne Vigouroux et al.

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Latest update: 25 Feb 2021
Special issue
TROPOMI on Sentinel-5 Precursor: first year in operation (AMT/ACP...
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Short summary
We validate the TROPOMI HCHO product with ground-based FTIR (Fourier-transform infrared) measurements from 25 stations. We find that TROPOMI overestimates HCHO under clean conditions, while it underestimates it at high HCHO levels. Both TROPOMI precision and accuracy reach the pre-launch requirements, and its precision can even be 2 times better. The observed TROPOMI seasonal variability is in agreement with the FTIR data. The TROPOMI random uncertainty and data filtering should be refined.
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