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September 5, 2025Open Access

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

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Enhanced SO2 plume height and column density assessments via TROPOMI, suggesting more reliable volcanic monitoring.

The retrieval algorithm improves SO2 height and column density accuracy, particularly in the upper troposphere.
Sensitivity analyses indicate BD2 retrievals reduce layer height errors by over 50%, enhancing sulfur dioxide detection.
Real TROPOMI observations demonstrate BD2's superior sensitivity and lower noise compared to current SO2 monitoring methods.
The approach aligns well with measurements from satellite instruments like IASI and MLS, confirming its reliability.

Fabris et al. (2025) studied this question.

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