Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 5
Articles | Volume 19, issue 5
https://doi.org/10.5194/amt-19-1801-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-1801-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 5
Research article
 | 
12 Mar 2026
Research article |  | 12 Mar 2026

Enhanced characterization of SO2 plume height and column density using the second UV spectral band of TROPOMI

Lorenzo Fabris, Nicolas Theys, Lieven Clarisse, Bruno Franco, Jonas Vlietinck, Huan Yu, Hugues Brenot, Thomas Danckaert, Pascal Hedelt, and Michel Van Roozendael

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Short summary
In this study, we developed an improved algorithm to retrieve the sulfur dioxide plume height and column density from the spectral band 2 of the TROPOspheric Monitoring Instrument onboard the Sentinel-5 Precursor satellite. We tested its sensitivity to various conditions and applied it to real volcanic eruptions. Overall, our approach shows high precision, accuracy, and sensitivity, and the results are consistent with other satellite measurements.
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