Articles | Volume 15, issue 16
Atmos. Meas. Tech., 15, 4801–4817, 2022
https://doi.org/10.5194/amt-15-4801-2022
Atmos. Meas. Tech., 15, 4801–4817, 2022
https://doi.org/10.5194/amt-15-4801-2022
Research article
24 Aug 2022
Research article | 24 Aug 2022

Improved retrieval of SO2 plume height from TROPOMI using an iterative Covariance-Based Retrieval Algorithm

Nicolas Theys et al.

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Latest update: 08 Dec 2022
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Short summary
Sulfur dioxide plume height after a volcanic eruption is an important piece of information for many different scientific studies and applications. Satellite UV retrievals are useful in this respect, but available algorithms have shown so far limited sensitivity to SO2 height. Here we present a new technique to improve the retrieval of SO2 plume height for SO2 columns as low as 5 DU. We demonstrate the algorithm using TROPOMI measurements and compare with other height estimates.